Invention Application
- Patent Title: Combining multiple exposure images to increase dynamic range
- Patent Title (中): 组合多个曝光图像以增加动态范围
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Application No.: US11403989Application Date: 2006-04-13
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Publication No.: US20070242900A1Publication Date: 2007-10-18
- Inventor: Mei Chen , Qian Lin , Suk Lim
- Applicant: Mei Chen , Qian Lin , Suk Lim
- Main IPC: G06K9/32
- IPC: G06K9/32

Abstract:
Methods, machines, and machine-readable media for processing multiple exposure source images, including a reference image and one or more non-reference images, are described. In one aspect, respective sets of motion vectors that establish correspondences between respective pairs of the source images are calculated. Ones of the source images are warped to a reference coordinate system based on the sets of motion vectors. For each of the non-reference ones of the warped images, a respective set of one or more measures of alignment confidence between the non-reference warped image and the reference image in the reference coordinate system is computed. Saturated pixels and unsaturated pixels are identified in the warped images. An output image with pixel value contributions from unsaturated pixels in the warped images is generated based on the computed alignment confidence measures.
Public/Granted literature
- US07623683B2 Combining multiple exposure images to increase dynamic range Public/Granted day:2009-11-24
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