標題: LINE-BASED MULTI-IMAGE MATCHING FOR FACADE RECONSTRUCTION
作者: Teo, Tee-Ann
Kao, Chung-Hsuan
土木工程學系
Department of Civil Engineering
關鍵字: building;facade;linear feature;multiple images matching
公開日期: 1-Jan-2012
摘要: This research integrates existing LOD 2 building models and multiple close-range images for facade structural lines extraction. The major works are orientation determination and multiple image matching. In the orientation determination, Speeded Up Robust Features (SURF) is applied to extract tie points automatically. Then, tie points and control points are combined for block adjustment. An object-based multi-images matching is proposed to extract the facade structural lines. The 2D lines in image space are extracted by Canny operator followed by Hough transform. The role of LOD 2 building models is to correct the tilt displacement of image from different views. The wall of LOD 2 model is also used to generate hypothesis planes for similarity measurement. Finally, average normalized cross correlation is calculated to obtain the best location in object space. The test images are acquired by a non-metric camera Nikon D2X. The total number of image is 33. The experimental results indicate that the accuracy of orientation determination is about 1 pixel from 2515 tie points and 4 control points. It also indicates that line-based matching is more flexible than point-based matching.
URI: http://hdl.handle.net/11536/128547
ISSN: 2194-9034
期刊: XXII ISPRS CONGRESS, TECHNICAL COMMISSION III
Volume: 39-B3
起始頁: 63
結束頁: 68
Appears in Collections:Conferences Paper