Image analysis – Image enhancement or restoration
Reexamination Certificate
2005-09-15
2009-12-08
Mariam, Daniel G (Department: 2624)
Image analysis
Image enhancement or restoration
C382S199000
Reexamination Certificate
active
07630571
ABSTRACT:
A panoramic camera is configured to automatically determine parameters of a table upon which the camera is situated as well as positional information of the camera relative to the table. In an initialization stage, table edges are detected to create an edge map. A Hough transformation-like symmetry voting operation is performed to clean up the edge map and to determine camera offset, camera orientation and camera tilt. The table is then fit to a table model to determine table parameters. In an operational stage, table edges are detected to create an edge map and the table model is fit to the edge map. The output can then be used for further panoramic image processing such as head size normalization, zooming, compensation for camera movement, etc.
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Chang, et al (Automatic Head-Size Equalization in Panorama Images for Video Conferencing), pp. 1-42, Microsoft Research, May 2005.
Chang, et al; Automatic Head-Size Equalization in Panorama Images for Video Conferencing; MSRT-TR-2005-48; May 2005.
Chang Ya
Cutler Ross G.
Liu Zicheng
Zhang Zhengyou
Mariam Daniel G
Microsoft Corporation
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