Published Papers

A. SCI-Ex Journal Papers

A28. Sefercik, U. G., Nazar, M., Aydin, I., Büyüksalih, G., Gazioglu, C., & Bayirhan, I. (2024). Comparative analyses for determining shallow water bathymetry potential of multispectral UAVs: case study in Tavşan Island, Sea of Marmara. Frontiers in Marine Science, 11, 1388704.

A27. Sefercik, U. G., Colkesen, I., Kavzoglu, T., Ozdogan, N., Ozturk, M. Y. (2024). Assessing the Physical and Chemical Characteristics of Marine Mucilage Utilizing In-Situ and Remote Sensing Data (Sentinel-1, -2, -3), PFG – Journal of Photogrammetry, Remote Sensing and Geoinformation Science, 10.1007/s41064-023-00254-y.

A26. Yildirim, E., Sefercik, U. G., Kavzoglu, T. (2024). Automated identification of vehicles in very high-resolution UAV orthomosaics using YOLOv7 deep learning model, Turkish Journal of Electrical Engineering and Computer Sciences, 32(1): 144-165, doi:10.55730/1300-0632.4060.

A25. Sefercik, U. G., Nazar, M. (2023). Consistency Analysis of RTK and Non-RTK UAV DSMs in Vegetated Areas. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 16: 5759-5768, doi: 10.1109/JSTARS.2023.3288947.

A24. Colkesen, I., Kavzoglu, T., Sefercik, U. G., Ozturk, M. Y. (2023). Automated Mucilage Extraction Index (AMEI): A Novel Spectral Water Index for Identifying Marine Mucilage Formations from Sentinel-2 Imagery. International Journal of Remote Sensing, 44(1):105-141, doi:10.1080/01431161.2022.2158049.

A23. Yagci, A. L., Colkesen, I., Kavzoglu, T., Sefercik, U. G.(2022). Daily monitoring of marine mucilage using the MODIS products: a case study of 2021 mucilage bloom in the Sea of Marmara, Turkey. Environmental Monitoring and Assessment, 194(3):170, doi:10.1007/s10661-022-09831-x.

A22. Sefercik, U. G., Alkan, M., Jacobsen, K., Atalay, C., Buyuksalih, G. (2021). Quality analysis of Worldview-4 DSMs generated by least squares matching and semiglobal matching. Journal of Applied Remote Sensing, 15(3):034515, doi:10.1117/1.JRS.15.034515.

A21. Sefercik, U. G., Alkan, M., Atalay, C., Jacobsen, K., Buyuksalih, G., Karakis, S. (2020). Optimizing the Achievable Information Content Extraction from WorldView-4 Stereo Imagery. PFG – Journal of Photogrammetry, Remote Sensing and Geoinformation Science, 88(6):449-461, doi:10.1007/s41064-020-00127-8.

A20. Sefercik, U. G. (2021). Quantifying Coherence Between TDM90, SRTM90 and ASTER90. Umut G. Sefercik, Geocarto International, 36(15):1752-1767, doi:10.1080/10106049.2019.1659425.

A19. Sefercik, U. G., Buyuksalih, G., Atalay, C. (2020). DSM Generation with Bistatic TanDEM-X InSAR Pairs and Quality Validation in Inclined Topographies and Various Land Cover Classes. Arabian Journal of Geosciences, 13:560, doi:10.1007/s12517-020-05602-5.

A18. Sefercik, U. G., Buyuksalih, G., Jacobsen, K., Bayburt, S. (2019). DSM Quality of Korean Satellite KOMPSAT-3 in Comparison to AW3D30 and Sentinel-1A in Respect of Airborne Laser Scanning. KSCE Journal of Civil Engineering, 23(7):3162-3173, doi:10.1007/s12205-019-2462-3 , 2019.

A17. Sefercik, U. G., Gokmen, U. (2019). Country-scale Discontinuity Analysis of AW3D30 and SRTM Global DEMS: Case Study in Turkey. Arabian Journal of Geosciences, 12(7), doi:10.1007/s12517-019-4370-8.

A16. Sefercik, U. G., Buyuksalih, G., Atalay, C., Jacobsen, K. (2018). Validation of Sentinel-1A And AW3D30 DSMs for the Metropolitan Area of Istanbul, Turkey. Journal of Photogrammetry, Remote Sensing and Geoinformation Science, 86(3-4):141-155, doi:10.1007/s41064-018-0054-3.

A15. Sefercik, U. G., Karakis, S., Atalay, C., Yigit, I., Gokmen, U. (2018). Novel fusion approach on automatic object extraction from spatial data: Case study Worldview-2 and TOPO5000. Geocarto International, 33(10):1139-1154, doi:10.1080/10106049.2017.1353646.

A14. Sefercik, U. G., Atesoglu, A. (2017). Three-Dimensional Forest Stand Height Map Production Utilizing Airborne Laser Scanning Dense Point Clouds and Precise Quality Evaluation. iForest – Biogeosciences and Forestry, 10:491-497, doi:10.3832/ifor2039-010.

A13. Sefercik, U. G., Buyuksalih, G., Jacobsen, K., Alkan, M. (2017). Point-based and Model-based Geolocation Analysis of Airborne Laser Scanning Data. Optical Engineering, 56(1):013101;  doi:10.1117/1.OE.56.1.013101.

A12. Sefercik, U. G., Yastikli, N. (2015). ALS model-based comparison of Cosmo-SkyMed and TerraSAR-X HS DSMs on varied land forms. Journal of Spatial Science, 61(1):119-131, doi:10.1080/14498596.2015.1068231.

A11. Sefercik, U. G., Glennie, C., Singhania, A., Hauser, D. (2015). Area based quality control of airborne laser scanning 3D models for different land classes using terrestrial laser scanning: sample survey in Houston, USA. International Journal of Remote Sensing, 36(23):5916-5934, doi:10.1080/01431161.2015.1110260.

A10. Sefercik, U. G., Karakis, S., Bayik, C., Alkan, M., Yastikli, N. (2014). Contribution of Normalized DSM to Automatic Building Extraction from HR Mono Optical Satellite Imagery. European Journal of Remote Sensing, 47:575-591, doi:10.5721/EuJRS20144732.

A9. Sefercik, U. G., Yastikli, N. (2014). Assessment of Interferometric DEMs from TerraSAR-X Stripmap and Spotlight Stereopairs: Case Study in Istanbul. The Photogrammetric Record, 29(146):224-240, doi:10.1111/phor.12062.

A8. Yastikli, N., Sefercik, U. G., Esirtgen, F. (2014). Quantitative Assessment of Remotely Sensed Global Surface Models Using Various Land Classes Produced from Landsat Data in Istanbul. Chinese Geographical Science, 24(3):307-316, doi:10.1007/s11769-014-0681-6.

A7. Sefercik, U. G. (2013). Productivity of TerraSAR-X 3D Data In Urban Areas: A Case Study In Trento. European Journal of Remote Sensing, 46:597-612, doi:10.5721/EuJRS20134635.

A6. Sefercik, U.G., Yastikli, N., Dana, I. (2014). DEM Extraction In Urban Areas Using High-Resolution TerraSAR-X Imagery. Journal of the Indian Society of Remote Sensing, 42(2):279-290, doi:10.1007/s12524-013-0317-9.

A5. Sefercik, U. G., Alkan, M., Buyuksalih, G., Jacobsen, K. (2013). Generation and Validation of High-Resolution DEMs from Worldview-2 Stereo Data. The Photogrammetric Record, 28(144):362-374, doi: 10.1111/phor.12038.

A4. Sefercik, U. G., Ozendi, M. (2013). Comprehensive Comparison of VHR 3D Spatial Data Acquired From IKONOS and TerraSAR-X Imagery. Advances in Space Research, 52(9):1655–1667, doi:10.1016/j.asr.2013.07.044, 2013.

A3. Alkan, M., Buyuksalih, G., Sefercik, U. G., Jacobsen, K. (2013). Geometric Accuracy and Information Content of Worldview-1 Images. Optical Engineering, 52(2):026201;  doi:10.1117/1.OE.52.2.026201.

A2. Sefercik, U. G. (2012). Performance Estimation of ASTER Global DEM Depending upon the Terrain Inclination. Journal ofthe Indian Society of Remote Sensing, 40(4):565-576, doi:10.1007/s12524-012-0202-y.

A1. Sefercik, U. G., Alkan, M. (2009). Advanced Analysis of Differences Between C and X Bands Using SRTM Data for Mountainous Topography. Journal of the Indian Society of Remote Sensing, 37(3):335-349, doi: 10.1007/s12524-009-0044-4.

B. ESCI and Other Index Journal Papers

B12. Dana Negula, I., Moise, C., Dediu, F., Gheorghe, M., Tudor, G., Sefercik, U. G. (2023). Assessment of the European Ground Motion Service Ortho Products for Landfill Systematic Observation. Scientific Papers-Series E-Land Reclamation Earth Observation & Surveying Environmental Engineering, 12:479-488.

B11. Sefercik, U. G., Kavzoglu, T., Colkesen, I., Nazar, M., Ozturk, M. Y., Adali, S., Dinc, S. (2023). 3D positioning accuracy and land cover classification performance of multispectral RTK UAVs. International Journal of Engineering and Geosciences, 8(2):119-128, doi:10.26833/ijeg.1074791.

B10. Sefercik, U. G., Kavzoglu, T., Nazar, M., Atalay, C., Madak, M. (2022). Creation of a Virtual Tour .Exe Utilizing Very High-Resolution RGB UAV Data. International Journal of Environment and Geoinformatics, 9(4):151-160, doi.10.30897/ijegeo.1102575.

B9. Kavzoglu, T., Tonbul, H., Colkesen, I., Sefercik, U. G. (2021). The Use of Object-Based Image Analysis for Monitoring 2021 Marine Mucilage Bloom in the Sea of Marmara. International Journal of Environment and Geoinformatics, 8(4):529-536, doi:10.30897/ijegeo.990875.

B8. Kavzoglu, T., Colkesen, I, Sefercik, U. G., Ozturk, M. Y. (2021). Detection and Analysis of Mucilage Formations in the Sea of Marmara from Multi-Temporal Optical and Thermal Satellite Images by Machine Learning Algorithm. Map Journal, 166:1-9.

B7. Ozdogan, N., Sefercik, U. G., Kilinc, Y., Caliskan, E., Atalay, C. (2021). Determination of Water Quality by Unmanned Aerial Vehicle Data and Analysis of Physico-Chemical Parameters: Case Study Aydınlar (Gülüc) Stream, European Journal of Science and Technology, 23:572-582, doi:10.31590/ejosat.887105.

B6. Sefercik, U. G., Atesoglu, A., Atalay, C. (2021). Performance Analysis of Air-borne Laser Scanning in Forest Stand Height Map Production. Geomatic Journal, 6(3):179-188, doi:10.29128/geomatik.721916.

B5. Sefercik, U. G., Tanrikulu, F., Atalay, C. (2020). Comparison of Photogrammetric 3D Modeling Potentials of SFM Based Next Generation Image Matching Software. Turkish Photogrammetry Journal, 2(2):39-45.

B4. Marangoz, A. M., Sefercik, U. G., Yuce, D. (2020). Three-dimensional Earth Modelling Performance Analysis of Göktürk-2 Satellite. Turkish Journal of Engineering, 4(3):164-168, doi:10.31127/tuje.650989.

B3. Karakis, S., Sefercik, U. G., Bilir, T., Atalay, C. (2020). Precise Monitoring of Temporal Topographic Change Detection via Unmanned Air Vehicle. Bulletin of the Mineral Research and Exploration, MTA, 161:151-156, doi:10.19111/bulletinofmre.524179.

B2. Sefercik, U. G. (2018). Impact Analysis of Temporal Baseline on the Geolocation Accuracy of Next Generation Synthetic Aperture Radar DSMs. Cukurova University Engineering and Architecture Faculty Journal, 33(2):165-176.

B1. Sefercik, U. G., Schunert, A., Soergel, U., Watanabe, K. (2013). 3D Quality Assessment of High Resolution TerraSAR-X SAR Data: Case Study Barcelona. Journal of Aeronautics and Space Technologies, 6(1):95-103.

C. Book Chapters

C3. Kavzoglu, T., Yilmaz, E. O., Colkesen, I, Sefercik, U. G., Gazioglu, C. (2023). Detection and Monitoring of Mucilage Formations Using Pixel-Based Convolutional Neural Networks: Case Study Gulf of Izmit. In: Mucilage Problem of the Marmara Sea. Editor: Meric Albay, İstanbul University Press, ISBN: 978-605-07-1284-1, Doi: 10.26650/B/LS32.2023.002.11, 2023.

C2. Sefercik, U. G., Kavzoglu, T. (2021). Early Warning, Detection, Monitoring and Intervention Strategies with Remote Sensing Technologies in Forest Fires. In: Forest Fires: Causes, Effects, Monitoring, Precautions to be Taken and Rehabilitation Activities. Editor: Taskın Kavzoglu, Turkish Academy of Sciences (TUBA), ISBN: 978-605-2249-79-6, doi:10.53478/TUBA.2021.038.

C1. Kavzoglu, T., Colkesen, I., Sefercik, U. G. (2021). Detection and Monitoring of the Mucilage Phenomenon in the Sea of Marmara with Remote Sensing Technologies. In: Ecology of the Sea of Marmara: Sea Mucilage Formation, Interactions and Suggestions for Solutions. Editors: Izzet Ozturk, Muzaffer Seker, Turkish Academy of Sciences (TUBA), ISBN: 978-605-2249-73-4, doi:10.53478/TUBA.2021.001.

D. Published Papers in International Meeting’s Proceeding Books

D68. Nazar, M., Sefercik, U. G. (2024). Comparative Accuracy Analysis of Algorithms Used in Automatic Detection of Power Lines from LiDAR Data. International Symposium on Applied Geoinformatics ISAG2024, 9-10 May, Wroclaw, Poland.

D67. Colkesen, I., Sefercik, U. G., Ozdogan, N., Kavzoglu, T., Ozturk, M. Y., Altuntas, O. Y., Nazar, M., Aydin, I., Tonbul, H. (2024). An Assessment of the Potential Use of Sentinel-2 Imagery and Water Indices in Monitoring Water Quality: A Case Study of Sakarya River-based machine learning and deep learning models in classifying different maize genotypes with multispectral UAV imagery. International Symposium on Applied Geoinformatics ISAG2024, 9-10 May, Wroclaw, Poland.

D66. Altuntas, O. Y., Colkesen, I., Sefercik, U. G., Kavzoglu, T., Saygi, M., Ozturk, M. Y., Nazar, M., Aydin, I., Tonbul, H. (2023). Evaluating the performance of object-based machine learning and deep learning models in classifying different maize genotypes with multispectral UAV imagery. 8th Advanced Engineering Days, 7-8 December, Mersin, Türkiye.

D65. Aydin, I., Sefercik, U. G. (2023). LULC Mapping Accuracy Enhancement through Multispectral UAV Imagery with nDSM Integration. 8th Advanced Engineering Days, 7-8 December, Mersin, Türkiye.

D64. Sefercik, U. G., Dalkiran, B., Cilli, N. C., Buyuksalih, I. (2023). Geolocation Accuracy Analysis of Digital Terrain Models Generated from 1/1000 Scale Digital Photogrammetric Vector Maps Using Airborne Laser Scanning Reference. Istanbul International Scientific Research Congress V, 9-11 July, Istanbul, Türkiye.

D63. Sefercik, U. G. (2023). Quantitative Coherence Analysis of Radar Digital Surface Models Representing The World with 90 m Resolution: The Case of Istanbul. Istanbul International Scientific Research Congress V, 9-11 July, Istanbul, Türkiye.

D62. Nazar, M., Sefercik, U. G., Aydin, I. (2023). Potential Analyses of LiDAR-Based Automatic Powerline Detection Algorithms. 7th Advanced Engineering Days, 8-9 July, Mersin, Türkiye.

D61. Sefercik, U. G., Aydin, I., Nazar, M. (2023). Quality Enhancement in Digital Twin Production of Complex Architectures with Integrated Use of Terrestrial and Aerial Images. 7th Advanced Engineering Days, 8-9 July, Mersin, Türkiye.

D60. Nazar, M., Sefercik, U. G. (2023). Game Development in Unity Game Engine Using Optical UAV Data. 6th Intercontinental Geoinformation Days, 13-14 June, Baku, Azerbaijan.

D59. Colkesen, I., Sefercik, U. G., Kavzoglu, T., Tonbul, H., Ozturk, M. Y., Altuntas, O. Y., Nazar, M., Aydin, I. (2023). Classification of Hybrid Maize Seeds (Zea Mays) with Object-Based Machine Learning Algorithms Using Multispectral UAV Imagery. 6th Intercontinental Geoinformation Days, 13-14 June, Baku, Azerbaijan.

D58. Colkesen, I., Kavzoglu, T., Sefercik, U. G., Altuntas, O. Y., Nazar, M., Ozturk, M. Y., Saygi, M. C. (2023). Deep Learning Based Poplar Tree Detection and Counting Using Multispectral UAV Images. 6th Advanced Engineering Days (AED’2023), 4-5 March, Mersin, Türkiye.

D57. Sefercik, U. G., Aydin, I., Nazar, M. (2023). Effect of Camera Optimization on 3D Location Accuracy in UAV Photogrammetry. III. International Istanbul Current Scientific Research Congress, 8-9 February, Istanbul, Türkiye.

D56. Sefercik, U. G., Nazar, M., Aydin, I. (2023). Problematic Points and Solution Approaches in 3D Model Generation Using Optical UAV Data. III. International Istanbul Current Scientific Research Congress, 8-9 February, Istanbul, Türkiye.

D55. Yildirim, E., Sefercik, U. G., Kavzoglu, T. (2022). Automated Vehicle Detection and Instance Segmentation from Very High-Resolution UAV Imagery Based On YOLOv7. 5th Intercontinental Geoinformation Days (IGD), NIGMT Foundation, 14-15 December, New Delhi, India.

D54. Gutjahr, K., Atalay, C., Perko, R., Raggam, H., Deutscher, J., Schardt, M., Sefercik, U. G., Novel Radargrammetric Approach for Capella Space Imagery. 41st EARSeL Symposium, 13-16 September, Paphos, Cyprus.

D53. Yildirim, E., Nazar, M., Sefercik, U. G., Kavzoglu, T. (2022). Stone Pine (pinus pinea l.) Detection from High-resolution UAV Imagery Using Deep Learning Model. 42nd International Geoscience and Remote Sensing Symposium (IGARSS), 17-22 July, Kuala Lumpur, Malaysia.

D52. Sefercik, U. G., Nazar, M. (2022). Coherence analysis of DSMs generated by multispectral RTK and RGB non-RTK UAVs’ simultaneous data. 42nd International Geoscience and Remote Sensing Symposium (IGARSS), 17-22 July, Kuala Lumpur, Malaysia.

D51. Sefercik, U. G., Kavzoglu, T., Colkesen, I, Nazar, M., Ozturk, M. Y., Adali, S., Dinc, S. (2021). Geolocation and Land Cover Classification Performance of Multispectral RTK UAVs. International Symposium on Applied Geoinformatics (ISAG’2021), 2-3 December, Riga, Latvia.

D50. Sefercik, U. G., Kavzoglu, T., Nazar, M., Atalay, C., Madak, M. (2021). Integration of High Resolution UAV Data into the Virtual Environment. International Symposium on Applied Geoinformatics (ISAG’2021), 2-3 December, Riga, Latvia.

D49. Sefercik, U. G., Kavzoglu, T., Colkesen, I, Nazar, M., Ozturk, M. Y., Adali, S., Dinc, S. (2021). 3D Positioning Accuracy and Land Cover Classification Performance of the UAVs: Case Study of DJI Phantom IV Multispectral RTK. The 42nd Asian Conference on Remote Sensing (ACRS’2021), 22-24 November, Can Tho, Vietnam.

D48. Colkesen, I, Ozturk, M. Y., Kavzoglu, T., Sefercik, U. G., Determination of Sea Surface Mucilage Formations Using Multitemporal Sentinel-2 Imagery. The 42nd Asian Conference on Remote Sensing (ACRS’2021), 22-24 November, Can Tho, Vietnam.

D47. Sefercik, U. G., Kavzoglu, T., Nazar, M., Atalay, C., Madak, M. (2021). Virtual Campus Tour Generation Using UAV Data: Case Study Gebze Technical University. The 42nd Asian Conference on Remote Sensing (ACRS’2021), 22-24 November, Can Tho, Vietnam.

D46. Sefercik, U. G., Kavzoglu, T., Colkesen, I, Nazar, M., Ozturk, M. Y., Adali, S., Dinc, S. (2021). Land Cover Classification Performance of Multispectral RTK UAVs. ISPRS SCA’21 International Smart City Applications Conference, 27-29 October, Karabuk, Türkiye.

D45. Sefercik, U. G., Kavzoglu, T., Nazar, M., Atalay, C., Madak, M. (2021). UAV-Based 3D Virtual Tour Creation. ISPRS SCA’21 International Smart City Applications Conference, 27-29 October, Karabuk, Türkiye.

D44. Sefercik, U. G., Caglayan, U., Atalay, C. (2019). Spatial Coherence Analysis of AGISOFT and PIX4D Software. 5th International Engineering, Architecture and Design Congress, 22-23 December, Istanbul, Türkiye.

D43. Sefercik, U. G., Tanrikulu, F., Atalay, C. (2019). Photogrammetric 3D Modelling Potential Comparison of SFM-Based New Generation Image Matching Software. 40th Asian Conference on Remote Sensing (ACRS), 14-18 October, Daejeon, South Korea.

D42. Sefercik, U. G., Gokmen, U., Atalay, C. (2019). Coherence Estimation of Widely Demanded AW3D30 and SRTM 1-Arcsecond Space-Borne Global DEMs. 40th Asian Conference on Remote Sensing (ACRS), 14-18 October, Daejeon, South Korea.

D41. Kar, M. F., Atatlay, C., Sefercik, U. G., Costur, U. (2019). Photogrammetric 3D Modeling with Virtual Sphere Data. 3rd Engineers of Future International Student Symposium (EFIS 2019), 16-17 May, Zonguldak, Türkiye.

D40. Akbostanci, T., Ozarslan, A., Sefercik, U. G. (2019). Aggregate Stockpile Measurements. 3rd Engineers of Future International Student Symposium (EFIS 2019), 16-17 May, Zonguldak, Türkiye.

D39. Sefercik, U. G., Karakis, S., Atalay, C. (2018). Topographic Description Potential of Laser UAVs by the Side of Terrestrial Laser Scanning. International Conference Geomapplica 2018, Geomatics, Remote Sensing & Earth Observation, 25-29 June, Syros, Greece.

D38. Karakis, S., Sefercik, U. G., Atalay, C. (2018). Point-based Accuracy Anaylse of Optical Unmanned Air Vehicle Data Derived by Low Cost Action Camera.  International Conference Geomapplica 2018, Geomatics, Remote Sensing & Earth Observation,  25-29 June, Syros, Greece.

D37. Atalay, C., Sefercik, U. G., Karakis, S. (2018). 3D Modeling of Historical Buildings Using Advanced Computer Vision Technologies and Low Cost Camera: Case Study Celsus Library. Ekrem Gecici, Enginners of Future International Symposium (EFIS), 7-9 June, Zonguldak, Türkiye.

D36. Atalay, C., Sefercik, U. G. (2018). Comparison of Sentinel-1 and ALOS AW3D30 DSMs in a Mountanious Topography. Young Professionals Conference on Remote Sensing, 7-8 June, Aachen, Germany.

D35. Sefercik, U. G., Karakis, S., Atalay, C. (2018). Roof Modelling Potential of UAV Point Clouds by Laser Scanning, FIG Congress, 6-11 May, Istanbul, Türkiye.

D34. Karakis, S., Sefercik, U. G., Bilir, T., Atalay, C. (2018). Precise Monitoring of Temporal Topographic Change Detection Via Unmanned Air Vehicle. 9th International Symposium on Eastern Mediterranean Geogoly, 7-11 May, Antalya, Türkiye.

D33. Sefercik, U. G., Karakis, S., Atalay, C. (2018). Production of Airborne Laser Scanner Skilled Advanced Unmanned Air Vehicle and the Potential of Preliminary Data. 26th IEEE Signal Processing and Telecommunication Applications Symposium, 2-5 May, Izmir, Türkiye.

D32. Jacobsen, K., Sefercik, U. G. (2018). Dense Matching with WorldView-4 and Kompsat-3 Bildern. Photogrammetry, Remote Sensing, Geoinformatic, Cartography (PFGK) Annual Meeting, 7-9 March, Munich, Germany.

D31. Sefercik, U. G., Karakis, S., Atalay, C. (2017). UAV-Based Precise 3D Topographic Modelling to Build Engineering Structures, International Symposium on GIS Applications in Geography & Geosciences, 18-21 October, Canakkale, Türkiye.

D30. Karakis, S., Atalay, C., Sefercik, U. G. (2017). Campus Information System Generation Utilizing Passively Collected UAV Data: Case Study Bulent Ecevit University. International Symposium on GIS Applications in Geography & Geosciences, 18-21 October, Canakkale, Türkiye.

D29. Sefercik, U. G., Yastikli, N., Atalay, C. (2017). Urban Modelling Performance of Next Generation SAR Missions. SARCon 2017, ISPRS Archives of Photogrammetry and Remote Sensing, 18-22 September, Wuhan, China.

D28. Sefercik, U. G., Yastikli, N., Atalay, C. (2017). Terrain Estimation Performance of Advanced SAR Satellites: Cosmo-SkyMed and TerraSAR-X. Recent Advances in Space Technologies, IEEE RAST 2017, 19-22 June, Istanbul, Türkiye.

D27.  Sefercik, U. G., Soergel, U. (2014). Influence of Temporal Baseline on the Vertical Absolute Accuracies of TSX HS Interferometric DSMs: Case Study on Berlin. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XL-7, 2014, ISPRS Technical Commission VII Symposium, 29 September – 2 October, Istanbul, Türkiye.

D26.  Sefercik, U. (2013). Performance Evaluation of High Resolution DSMs Derived by InSAR Technology. 35th International Symposium on Remote Sensing of Environment (35. ISRSE), CD, 7 pages, 22-26 April, Beijing, China.

D25. Sefercik, U. G., Bayik, C., Ozendi, M. (2012). Assessment of DEMs Produced By Medium Resolution Optical Sensors Considering Land Cover Classes. 33rd Asian Conference of Remote Sensing (ACRS) 2012, pp. 923-928, 26-30 November, Pattaya, Thailand.

D24. Kuscu, S., Sefercik, U. G. (2012). Mapping of Wide Areas Using Digital Photogrammetry: A Case Study in Turkey, 33. Asian Conference of Remote Sensing (ACRS) 2012, pp: 1244-1251, 26-30 November, Pattaya, Thailand.

D23. Sefercik, U. G., Schunert, A., Soergel, U., Watanabe, K. (2012). Validation of DEMs Derived from High Resolution SAR Data: A Case Study on Barcelona. XXII. ISPRS Congress, ISPRS Annals – Volume I-7, 2012, Editors: M. Shortis, W. Wagner, J. Hyyppä, pp. 49-54, 25 August-1 September, Melbourne, Australia. 

D22. Sefercik, U. G., Dana, I. (2011). Crucial Points of Interferometric Processing for DEM Generation Using High Resolution SAR Data. ISPRS Hannover Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVIII-4/W19, 14-17 June, Hannover, Germany.

D21. Watanabe, K., Sefercik, U. G., Schunert, A., Soergel, U. (2011). Evaluation of INSAR DEM from High-Resolution Space-borne SAR Data. ISPRS Hannover Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVIII-4/W19, 14-17 June, Hannover, Germany.

D20. Sefercik, U. G., Bayik, C., Karakis, S., Jacobsen, K. (2011). Morphologic Quality of DSMs Based on Optical and Radar Space Imagery. ISPRS Hannover Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVIII-4/W19, 14-17 June, Hannover, Germany.

D19. Karakis, S., Sefercik, U. G., Bayik, C. (2011). Data Acquisition Through the Model Aircraft for Mapping Purposes. ISPRS Hannover Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVIII-4/W19, 14-17 June, Hannover, Germany.

D18. Yastikli, N., Esirtgen, F., Sefercik, U. G. (2011). Quantitative Assessment of Digital Topographic Data from Different Sources, ISPRS Hannover Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVIII-4/W19, 14-17 June, Hannover, Germany.

D17. Sefercik, U. G., Alobeid, A., Soergel, U., Jacobsen, K. (2010). Generation and Analysis of DEMs Based on Space-borne Remote Sensing. 17. International Symposium on “Space Technology Management and Applications”, General Organisation of Remote Sensing Headquarter (GORS), CD, 6 pages, 8-10 November, Damascus, Syria.

D16. Sefercik, U. G., Jacobsen, K. (2010). Quality Assessment of High Resolution RADAR DSMs. ISPRS Istanbul Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVIII, 1-W17, 7 pages, 11-13 October, Istanbul, Türkiye.

D15. Alkan, M., Oruc, M., Kayabasi, D., Sefercik, U. G. (2010). Spatial and Temporal GIS Analysis of Change Detection Using IKONOS Images: A Case Study of Zonguldak. ISPRS Istanbul Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVIII, 1-W17, 10 pages, 11-13 October, Istanbul, Türkiye.

D14. Sefercik, U. G., Soergel, U. (2010). Comparison of High Resolution InSAR and Optical DEMs. EARSeL Workshop, CD, 13 pages, 22-24 September, Gent, Belgium.

D13. Sefercik, U. G., Soergel, U. (2010). Topographic Estimation by TerraSAR-X. ISPRS Sempozyumu: 100 Years ISPRS – Advancing Remote Sensing Science, ISPRS Workshop, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVIII, Part 7B, pp. 504-510, 5-7 July, Wien, Austria.

D12. Alkan, M., Sefercik, U. G., Marangoz, A. M., Karakis, S. (2010). Updating Objects for Topographic Map Information Using High Resolution Optical Images of Zonguldak Test Field, 30th EARSeL Symposium, Remote Sensing for Science, Education, Editor: Rainer Reuter, pp. 683-690, 31 May-3 June Paris, France.

D11. Sefercik, U. G., Soergel, U. (2010). Evaluation of DEMs Derived by TerraSAR-X InSAR Data. 30. EARSeL Symposium, Remote Sensing for Science, Education, Editor: Rainer Reuter, pp. 697-610, 31 May-3 June Paris, France.

D10. Alkan, M., Sefercik, U. G., Oruc, M. (2008). Integration of High Resolution Quickbird Images to GoogleEarth. XXI. ISPRS Congress, ISPRS Proceedings XXXVII, pp. 727-732, 3-11 July, Beijing, China.

D9. Sefercik, U. G., Oruc, M., Alkan, M. (2008). Adaptation of High Resolution IKONOS Images to GoogleEarth for Zonguldak Test Field. FIG Working Week 2008 – Integrating Generations and FIG/UN-HABITAT Seminar – Improving Slum Conditions through Innovative Financing proceeding book, 12 pages, 14-19 June, Stockholm, Sweden.

D8. Sefercik, U. G. (2007). Comparison of DEM Accuracies Generated by Various Methods. IEEE, 3rd International Conference on Recent Advances in Space Technologies, pp. 379-382, 14-16 June, Istanbul, Türkiye.

D7. Sefercik, U. G., Jacobsen, K. (2007). Quality Assessment of INSAR Digital Elevation Models, 27. EARSeL Symposium, GeoInformation in Europe, M.A. Gomarsca (ed.) , 2007 Millpress, Netherlands, ISBN: 9789059660618, pp. 47-54, 4-7 June, Bolzano, Italy.

D6. Sefercik, U. G., Jacobsen, K., Oruc, M., Marangoz, A.M. (2007). Comparison of SPOT, SRTM and ASTER DEMs, ISPRS Hannover Workshop, High-Resolution Earth Imaging for Geospatial Information, ISPRS Proceedings XXXVI, 5 pages, 29 May–1 June, Hannover, Germany.

D5. Sefercik, U. G., Jacobsen, K. (2006). Analysis of SRTM Height Models, 5th International Symposium Turkish-German Geodetic Days, CD, 6 pages, Technical University, 28-31 March, Berlin, Germany.

D4. Marangoz, A. M., Karakis, S., Oruc, M., Sahin, H., Sefercik, U. G., Topan, H., Buyuksalih, G. (2006). 3D Cultural Heritage Documentation of Safranbolu Test Site Using High Resolution Satellite Imagery, 1th EARSEL Workshop Urban Remote Sensing”, Workshop Proceedings, 7 pages, Humboldt University, , 2-3 March, Berlin, Germany.

D3. Marangoz, A. M., Buyuksalih, G., Buyuksalih, I., Sefercik, U. G. (2005). Geometric Evaluation, Automated DEM and Orthoimage Generation from Along-Track Stereo ASTER Images. 2. International Conference on Recent Advances in Space Technologies, RAST 2005, “Space in the Service of Society”, IEEE, Proceedings, pp. 505-510, , 9-11 June, Istanbul, Türkiye.

D2. Jacobsen, K., Buyuksalih, G., Marangoz, A. M., Sefercik, U. G., Buyuksalih, I. (2005). Geometric Conditions of Space Imagery for Mapping. 2nd International Conference on Recent Advances in Space Technologies, RAST 2005, “Space in the Service of Society”, IEEE, Proceedings, pp. 511-516, 9-11 June, Istanbul, Türkiye.

D1. Sefercik, U. G., Gulegen, O. E. (2004). Edge Detection in Geologic Formation Extraction: Close Range and Remote Sensing Case Studies. XX. ISPRS Congress, “Geo-imagery Bridging the Continents”, ISPRS Archives – Volume XXXV Part B8, pp. 126-129, 12-23 July, Istanbul, Türkiye.

E. Published Papers in National Meeting’s Proceeding Books

E25. Nazar, M., Sefercik, U. G. (2023). İHA Verileri ile Unity Ortamında Oyun Tasarımı. Türkiye Ulusal Fotogrametri ve Uzaktan Algılama Birliği (TUFUAB) XII. Teknik Sempozyumu, 24-26 Mayıs, Sivas, Türkiye.

E24. Sefercik, U. G., Aydin, İ., Nazar, M. (2023). İnsansız Hava Aracı ve Yersel Fotogrametri Verilerinin Füzyonu ile 3B Dijital İkiz Üretim Kalitesinin Artırılması. Türkiye Ulusal Fotogrametri ve Uzaktan Algılama Birliği (TUFUAB) XII. Teknik Sempozyumu, 24-26 Mayıs, Sivas, Türkiye.

E23. Sefercik, U. G., Aydin, I., Nazar, M. (2022). Effect of Camera Optimization on 3D Modeling Quality from Polygonal UAV Flights. VIII. Remote Sensing and Geographical Information System Symposium (UZAL-CBS 2022), 17-19 November, Ankara, Türkiye.

E22. Sefercik, U. G., Nazar, M., Aydin, I. (2022). Problematic Points and Solution Suggestions in 3D Model Production with Optical UAV, VIII. Remote Sensing and Geographical Information System Symposium (UZAL-CBS 2022), 17-19 November Ankara, Türkiye.

E21. Barun, A., Sefercik, U. G., Kavzoglu, T. (2021). Comparative Accuracy Analyzes of Digital Surface Models Produced from Optical UAV and Traditional Photogrammetry Data in LiDAR Reference: Parrot Anafi 4K HDR Example. 5. GTU Graduate Studies Symposium, 10-11 June, Kocaeli, Türkiye.

E20. Sefercik, U. G., Tanrikulu, F., Koc, M., Atalay, C. (2019). Evaluation of Photogrammetric 3D Model Performance of SFM Based Next Generation Image Matching Software. X. TUFUAB Technical Symposium, 25-27 April Aksaray, Türkiye.

E19. Marangoz, A. M., Sefercik, U. G., Yuce, D. (2019). Three Dimensional Earth Modeling Performance Analysis of GÖKTÜRK-2 Satellite, X. TUFUAB Technical Symposium, 25-27 April, Aksaray, Türkiye.

E18. Sefercik, U. G., Karakis, S., Atalay, C. (2018). Production of Airborne Laser UAV which Provides Point Clouds with High Geolocation Accuracy and Quality Assessment of Preliminary Data. VII. Remote Sensing and Geographical Information System Symposium, 18-21 September, Eskisehir, Türkiye. 

E17. Sefercik, U. G., Glennie, C., Singhania, A., Hauser, D. (2016). Topographic Description Potential of Airborne Laser Scanning: Case Study Houston. VI. Remote Sensing and Geographical Information System Symposium, 5-7 October, Adana, Türkiye. 

E16. Karakis, S., Sefercik, U. G., Atalay, C. (2016). Point-based Accuracy Analysis of Low-cost Action Camera Equipped UAV. VI. Remote Sensing and Geographical Information System Symposium, 5-7 October, Adana, Türkiye.

E15. Sefercik, U. G., Glennie, C., Atesoglu, A. (2015). 3D Forest Stand Height Map Production Using Airborne Laser Scanning Point Clouds: Case Study Houston. VIII. TUFUAB Technical Symposium, 21-23 May Konya, Türkiye.

E14. Sefercik, U. G., Karakis, S., Bayik, C., Alkan, M., Yastikli, N. (2014). A Novel Approach for Improving the Performance of Automatic Building Extraction from High Resolution Optical Satellite Imagery: Case Study Quickbird. V. Remote Sensing and Geographical Information System Symposium, 14-17 October, Istanbul, Türkiye. 

E13. Karakis, S., Bayik, C., Sefercik, U. G. (2014). Investigation of Usage Possibilities of Unmanned Aerial Vehicles in Mining Activities. 19th Turkish Coal Congress, CD, 12 pages, 21-23 May, Zonguldak, Türkiye. 

E12. Sefercik, U. G., Atesoglu, A. (2013). A Novel Approach for Stand Height Map Production from Spatial Data, TUFUAB 7th Technical Symposium, USB, 5 pages, 23-25 May, Trabzon, Türkiye. 

E11. Ozendi, M., Sefercik, U. G. (2013). Fusion of Optical and SAR Images Using Projective Transformation, TUFUAB 7th Technical Symposium, USB, 5 pages, 23-25 May Trabzon, Türkiye. 

E10. Kuscu, S., Ayik, M. S., Sefercik, U. G., Oruc, M., Karaoglu, M., Aliyazicioglu, F. (2012). Contributions of Bursa Metropolitan Municipality M3 and M4 Projects. IV. Remote Sensing and Geographical Information System Symposium, CD, 8 pages, 16-19 October, Zonguldak, Türkiye. 

E9. Sefercik, U. G., Schunert, A., Soergel, U., Watanebe, K. (2012). 3D Quality Assessment of TerraSAR-X Data: Case Study Barcelona. IV. Remote Sensing and Geographical Information System Symposium, CD, 8 pages, 16-19 October Zonguldak, Türkiye.

E8. Esirtgen, F., Yastikli, N., Sefercik, U. G. (2011). Accuracy Assessment of Digital Elevation Models Derived from Different Data Sources. TUFUAB 6th Technical Symposium, USB, 6 pages, 23-26 February, Antalya, Türkiye. 

E7. Kuscu, S., Sefercik, U. G., Oruc, M., Sancak, M., Bulut, H. S., Akkar, S. (2010). The Project of Bursa Metropolitan Area Digital Photogrammetric Maps. 5th Engineering Symposium, Proceedings Book, Pages: 361-369, 20-22 October, Zonguldak, Türkiye. 

E6. Sefercik, U. G., Maktav, D. (2010). Comparative Accuracy Analysis of HR InSAR and Optical DSMs. III. Remote Sensing and Geographical Information System Symposium, Pages: 42-52, Gebze High Technology Institute, TUSSIDE, 11-13 October, Kocaeli, Türkiye. 

E5. Sefercik, U. G. (2007). DEM Generation with RADAR Interferometry and Accuracy Assessment. 11th Technical Congress of Geomatics, Proceeding Book, 10 pages, 2-6 April, Ankara, Türkiye. 

E4. Sefercik, U. G., Sefercik, D. (2007). Foreign Language in Geomatics Engineering Education. 11th Technical Congress of Geomatics, Proceeding Book, 5 pages, 2-6 April Ankara, Türkiye. 

E3. Multi-source DEM Validation Utilizing an InSAR Reference DEM, Umut G. Sefercik, I. Remote Sensing and Geographical Information System Symposium, Proceeding Book, 9 pages, Istanbul, Türkiye, 27-29 November 2006. 

E2. Kuscu, S., Oruc, M., Marangoz, A. M., Sahin, H., Topan, H., Karakis, S., Kemaldere, H., Sefercik, U. G., Can, E. (2006). Today and the Future of Geomatics Engineering Education. Geomatics Symposium, CD, 10 pages, 22 September, Trabzon, Türkiye,

E1. Buyuksalih, I., Akcin, H., Sefercik, U. G., Karakis, S., Marangoz, A. M. (2005). Monitoring of Changes in Filyos River Basin in the West Black Sea Coastal Region Using Geographical Information Systems. Ege GIS Symposium, CD, 8 pages, 27 – 29 April, Izmir, Türkiye.

Yoruma kapalı.