发明名称 |
Apparatus and method for refining a value of a similarity measure |
摘要 |
An apparatus and a method for refining a value of a similarity measure are described. A similarity measure is assigned to a pixel or a group of pixels of a disparity map, which is assigned to at least two stereo images each having a plurality of pixels. The similarity measure constitutes an estimate for a match quality of the pixel or the group of pixels. For refinement of the value of the similarity measure, the similarity measure between a pixel or a group of pixels in a first stereo image and a corresponding pixel or a group of corresponding pixels in a second stereo image is determined. A contrast value for the pixel or the group of pixels of the first or the second stereo image is determined and the value of the similarity measure is corrected by a correction value that is a function of the determined contrast value. |
申请公布号 |
US8831359(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201213441973 |
申请日期 |
2012.04.09 |
申请人 |
Thomson Licensing |
发明人 |
Schlosser Markus;Jachalsky Jörn;Gandolph Dirk |
分类号 |
G06K9/68;G06T7/00 |
主分类号 |
G06K9/68 |
代理机构 |
Jack Schwartz and Associates, PLLC |
代理人 |
Jack Schwartz and Associates, PLLC |
主权项 |
1. A method for refining a value of a similarity measure that is assigned to a pixel or a group of pixels of a disparity map that is assigned to at least two stereo images each having a plurality of pixels, wherein the similarity measure constitutes an estimate for a match quality of the pixel or the group of pixels, the method comprising:
determining the similarity measure between a pixel or a group of pixels in a first stereo image and a corresponding pixel or a corresponding group of pixels in a second stereo image, determining a contrast value for the pixel or the group of pixels of the first or the second stereo image, and correcting the value of the similarity measure by a correction value that is a function of the determined contrast value, wherein the value of the similarity measure is maintained if the similarity measure for the pixel or the group of pixels is located in a first predetermined continuous subset of a range for the similarity measure, the first subset comprising a maximum value of the similarity measure. |
地址 |
FR |