Title :
Homography based parallel volume intersection: toward real-time volume reconstruction using active cameras
Author :
Wada, Toshikazu ; Wu, Xiaojun ; Tokai, Shogo ; Matsuyama, Takashi
Author_Institution :
Dept. of Intelligent Sci. & Technol., Kyoto Univ., Japan
Abstract :
Silhouette volume intersection is one of the most popular ideas for reconstructing the 3D volume of an object from multi-viewpoint silhouette images. This paper presents a novel parallel volume intersection method based on plane-to-plane homography for real-time 3D volume reconstruction using active cameras. This paper mainly focuses on the acceleration of back-projection from silhouette images to 3D space without using any sophisticated software technique, such as octree volume representation, or look-up table based projection acceleration. Also this paper presents a parallel intersection method of projected silhouette images. From the preliminary experimental results we estimate near frame-rate volume reconstruction for a life-sized mannequin can be achieved at 3 cm spatial resolution on our PC cluster system
Keywords :
image reconstruction; active cameras; back-projection; frame-rate volume reconstruction; octree volume representation; parallel volume intersection; projected silhouette images; projection acceleration; real-time volume reconstruction; silhouette images; Acceleration; Biomedical optical imaging; Cameras; Humans; Image reconstruction; Magnetic field measurement; Magnetic sensors; Optical sensors; Shape measurement; Spatial resolution;
Conference_Titel :
Computer Architectures for Machine Perception, 2000. Proceedings. Fifth IEEE International Workshop on
Conference_Location :
Padova
Print_ISBN :
0-7695-0740-9
DOI :
10.1109/CAMP.2000.875992
