지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Multiple strips are required for large area mapping using ALS (Airborne Laser Scanner) system. LiDAR (Light Detection And Ranging) data collected from the ALS system has discrepancies between strips due to systematic errors of on-board laser scanner and GPS/INS, inaccurate processing of the system calibration as well as boresight misalignments. Such discrepancies deteriorate the overall geometric quality of the end products such as DEM (Digital Elevation Model), building models, and digital maps. Therefore, strip adjustment for minimizing discrepancies between overlapping strips is one of the most essential tasks to create seamless point cloud data. This study implemented area-based matching (ABM) to determine conjugate features for computing 3D transformation parameters. ABM is a well-known method and easily implemented for this purpose. It is obvious that the exact same LiDAR points do not exist in the overlapping strips. Therefore, the term “conjugate point” means that the location of occurring maximum similarity within the overlapping strips. Coordinates of the conjugate locations were determined with sub-pixel accuracy. The major drawbacks of the ABM are sensitive to scale change and rotation. However, there is almost no scale change and the rotation angles are quite small between adjacent strips to apply AMB. Experimental results from this study using both simulated and real datasets demonstrate validity of the proposed scheme.
목차
Abstract
1. Introduction
2. Surface Matching for Conjugate Features
3. LiDAR Strip Adjustment
4. Experimental Results and Analysis
5. Conclusions
References
참고문헌 (14)
참고문헌 신청
1. [학술지(정기간행물)] - Bang, K. / 2009 / LiDAR system calibration using overlapping strips, Bol. Ciênc. Geod., Vol. 15, No. 5, pp / Bol. Ciênc. Geod 15 (5) : 725 ~ 742
2. [학술지(정기간행물)] - Canny, J. / 1986 / A computational approach to edge detection / IEEE Transactions on Pattern Analysis and Machine Intelligence 8 (6) : 679 ~ 698
3. [학술지(정기간행물)] - Crombaghs, M. / 2000 / On the adjustment of overlapping strips of laser altimeter height data / International Archives of Photogrammetry and Remote Sensing 33 (B3/1) : 230 ~ 237
4. [학술대회논문] - Filin, S. / 2004 / Adjustment of airborne laser altimetry strips / International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 35 (B3) : 285 ~ 289
5. [학술대회논문] - Habib, A. / 2008 / Lidar strip adjustment using conjugate linear features in overlapping strips / International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences 37 (B1) : 385 ~ 390
2. [학술지(정기간행물)] - Canny, J. / 1986 / A computational approach to edge detection / IEEE Transactions on Pattern Analysis and Machine Intelligence 8 (6) : 679 ~ 698
3. [학술지(정기간행물)] - Crombaghs, M. / 2000 / On the adjustment of overlapping strips of laser altimeter height data / International Archives of Photogrammetry and Remote Sensing 33 (B3/1) : 230 ~ 237
4. [학술대회논문] - Filin, S. / 2004 / Adjustment of airborne laser altimetry strips / International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 35 (B3) : 285 ~ 289
5. [학술대회논문] - Habib, A. / 2008 / Lidar strip adjustment using conjugate linear features in overlapping strips / International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences 37 (B1) : 385 ~ 390
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UCI(KEPA) : I410-ECN-0101-2016-533-000933547