Invention Grant
- Patent Title: Method and apparatus for stereo vision matching including disparity refinement based on matching merit values
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Application No.: US15375661Application Date: 2016-12-12
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Publication No.: US10554947B1Publication Date: 2020-02-04
- Inventor: Huai Dong Li
- Applicant: Marvell International Ltd.
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H04N13/00
- IPC: H04N13/00 ; H04N13/128 ; G06K9/62 ; H04N13/15

Abstract:
A system is provided and includes a memory and a control module. The memory stores first and second pixel data corresponding to first and second image frames. The control module performs stereo vision matching including: accessing the first and second pixel data; determining initial disparity values that indicate differences between positions of the first and second pixel data; determining matching merit values for the first pixel data, where each of the matching merit values is indicative of a reliability level of a corresponding one of the initial disparity values; determining weights based on (i) the initial disparity values, (ii) differences between intensity values of the first and second pixel data, and (iii) the matching merit values; and refining the initial disparity values, based on the weights, to provide refined disparity values. The control module estimates a depth of a feature or an object based on the refined disparity values.
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