Information processing apparatus, image capturing apparatus, control system applicable to moveable apparatus, information processing method, and storage medium of program of method
First Claim
1. An information processing apparatus for processing stereo images of an object captured from a plurality of viewpoints to recognize the object, the information processing apparatus comprising:
- processing circuitry to calculate a disparity of the stereo images by using a matching process, the processing circuitry being configured to;
calculate a correlation evaluation value in a search range set for the stereo images;
detect an extreme value of the calculated correlation evaluation value;
set a threshold range for the detected extreme value;
count a number of the extreme value existing within the threshold range; and
update the set threshold range to a new threshold range when a new extreme value indicating a higher correlation level of the disparity compared to the set threshold range is detected,wherein the processing circuitry is configured to count the number of the extreme value in the new threshold range updated most recently in the search range.
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Abstract
An information processing apparatus for processing stereo images of an object includes a disparity calculator to calculate a disparity of the stereo images. The disparity calculator includes an evaluation value calculator to calculate a correlation evaluation value in a search range set for the stereo images; an extreme value detector to detect an extreme value of the correlation evaluation value; a threshold setting unit to set a threshold range for the detected extreme value; a counting unit to count the number of the extreme value existing within the threshold range; and an updating unit to update the set threshold range to a new threshold range when a new extreme value indicating a higher correlation level of the disparity compared to the set threshold range is detected. The counting unit counts the number of the extreme value in a threshold range updated most recently in the search range.
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Citations
10 Claims
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1. An information processing apparatus for processing stereo images of an object captured from a plurality of viewpoints to recognize the object, the information processing apparatus comprising:
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processing circuitry to calculate a disparity of the stereo images by using a matching process, the processing circuitry being configured to; calculate a correlation evaluation value in a search range set for the stereo images; detect an extreme value of the calculated correlation evaluation value; set a threshold range for the detected extreme value; count a number of the extreme value existing within the threshold range; and update the set threshold range to a new threshold range when a new extreme value indicating a higher correlation level of the disparity compared to the set threshold range is detected, wherein the processing circuitry is configured to count the number of the extreme value in the new threshold range updated most recently in the search range. - View Dependent Claims (2, 3, 4, 5, 6, 8)
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7. An image capturing apparatus, comprising:
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an image capturing sensor to capture an image of an object from a plurality of viewpoints to acquire stereo images of the object; and an information processing apparatus to process the stereo images to recognize the object, the information processing apparatus comprising; processing circuitry to calculate a disparity of the stereo images by using a matching process, the disparity calculator comprising processing circuitry being configured to; calculate a correlation evaluation value in a search range set for the stereo images; detect an extreme value of the calculated correlation evaluation value; set a threshold range for the detected extreme value; count a number of the extreme value existing within the threshold range; and update the set threshold range to a new threshold range when a new extreme value indicating a higher correlation level of the disparity compared to the set threshold range is detected, wherein the processing circuitry is configured to count the number of the extreme value in the new threshold range most recently updated in the search range.
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9. A method of recognizing an object by capturing stereo images of the object from a plurality of viewpoints and calculating a disparity of the stereo images by using a matching process, the method comprising;
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calculating a correlation evaluation value in a search range set for the stereo images; detecting an extreme value of the calculated correlation evaluation value; setting a threshold range for the detected extreme value; counting a number of extreme value existing within the set threshold range; and updating the set threshold range to a new threshold range when an extreme value having a higher correlation level of the disparity compared to the set threshold range is detected at the detecting step; and counting the number of extreme value in the new threshold range updated most recently in the search range. - View Dependent Claims (10)
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Specification