https://scholars.lib.ntu.edu.tw/handle/123456789/338043
標題: | Multipass hierarchical stereo matching for generation of digital terrain models from aerial images | 作者: | Hung, Yi-Ping Chen, C.-S. Hung, K.-C. Chen, Y.-S. CHIOU-SHANN FUH |
關鍵字: | Computer vision; DTM generation; Interactive editing; Stereo matching; Surface reconstruction | 公開日期: | 1998 | 卷: | 10 | 期: | 5-6 | 起(迄)頁: | 280-291 | 來源出版物: | Machine Vision and Applications | 摘要: | This paper presents a new multi-pass hierarchical stereo-matching approach for generation of digital terrain models (DTMs) from two overlapping aerial images. Our method consists of multiple passes which compute stereo matches with a coarse-to-fine and sparse-to-dense paradigm. An image pyramid is generated and used in the hierarchical stereo matching. Within each pass, the DTM is refined by using the image pyramid from the coarse to the fine level. At the coarsest level of the first pass, a global stereo-matching technique, the intra-/inter-scanline matching method, is used to generate a good initial DTM for the subsequent stereo matching. Thereafter, hierarchical block matching is applied to image locations where features are detected to refine the DTM incrementally. In the first pass, only the feature points near salient edge segments are considered in block matching. In the second pass, all the feature points are considered, and the DTM obtained from the first pass is used as the initial condition for local searching. For the passes after the second pass, 3D interactive manual editing can be incorporated into the automatic DTM refinement process whenever necessary. Experimental results have shown that our method can successfully provide accurate DTM from aerial images. The success of our approach and system has also been demonstrated with a flight simulation software. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0031649345&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/338043 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031649345&doi=10.1007%2fs001380050079&partnerID=40&md5=9e0580e5b51c0a802edf0d0bbd897acc |
ISSN: | 09328092 | SDG/關鍵字: | Computer vision; Edge detection; Image quality; Image reconstruction; Interactive computer graphics; Three dimensional computer graphics; Digital terrain models (DTM); Inter-scanline matching method; Intra-scanline matching method; Multipass hierarchical stereo matching; Stereo vision |
顯示於: | 資訊工程學系 |
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