Correcting an epipolar axis for skew and offset
The present invention relates generally to stereo imaging, and more particularly, to techniques for correcting an epipolar axis for skew and offset in order to approximate a horizontal axis in disparity calculations. Cameras () produce first and second images () of an object () from different viewpo...
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| Format | Patent |
| Language | English |
| Published |
06.01.2004
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| Online Access | Get full text |
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| Summary: | The present invention relates generally to stereo imaging, and more particularly, to techniques for correcting an epipolar axis for skew and offset in order to approximate a horizontal axis in disparity calculations.
Cameras () produce first and second images () of an object () from different viewpoints. An image partitioning module () partitions the images () into a plurality of vertically striped regions (), such that each region () of the first image () corresponds to a region () of the second image (). A region alignment module () vertically shifts a region () of the first image () in a direction calculated to vertically align a portion () of the region () with a substantially matching portion () of the corresponding region (). A disparity calculation module () calculates at least one disparity value between at least a portion () of the vertically shifted region () and at least a portion () of the corresponding region (). |
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