Invention Grant
- Patent Title: Adaptive spatial image filter for filtering image information
- Patent Title (中): 用于过滤图像信息的自适应空间图像滤波器
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Application No.: US11500768Application Date: 2006-08-07
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Publication No.: US08442344B2Publication Date: 2013-05-14
- Inventor: Xiaoyun Jiang , Chinchuan Andrew Chiu , Dennis Liu , Victor H. Chan , Xin Zhong
- Applicant: Xiaoyun Jiang , Chinchuan Andrew Chiu , Dennis Liu , Victor H. Chan , Xin Zhong
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent James R. Gambale, Jr.
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/46 ; G06K9/66 ; G06K9/40 ; G06K9/32 ; G06K15/00 ; H04N5/228 ; H04N5/208 ; H04N7/01 ; H04N11/20 ; H04N1/407 ; H04N1/409 ; G06T5/00

Abstract:
The disclosure describes adaptive filtering techniques to improve the quality of captured image information, such as video or still images. An image sensor captures image information and determines a plurality of parameter values based on a current exposure index and a current scaling factor of the image information. The adaptive spatial image filter includes both horizontal and vertical sharpening filters and configures, i.e., adapts, the horizontal sharpening filter and the vertical sharpening filter based on the plurality of parameter values determined by the image sensor. The adaptive spatial image filter applies the horizontal and vertical sharpening filters to at one channel of the image information to generate filtered image information.
Public/Granted literature
- US20080031538A1 Adaptive spatial image filter for filtering image information Public/Granted day:2008-02-07
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