Vehicle headlight detecting method and apparatus, and region-of-interest segmenting method and apparatus
First Claim
1. A method for segmenting a region of interest (ROI) from an image, comprising:
- performing an edge extracting operation on a captured image to obtain edges of the captured image;
selecting edges meeting predetermined criteria from the obtained edges, the predetermined criteria being the similarity between the region surrounded by the selected edges and the pattern formed by a vehicle headlight in physical reality at a position of the selected edges;
determining the region surrounded by the selected edges within the captured image as a vehicle headlight pattern; and
segmenting the ROI potentially including the vehicle pattern from the captured image based on the determined vehicle headlight pattern.
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Abstract
A method and apparatus for detecting vehicle headlights and a region-of-interest (ROI) segmenting method and apparatus are disclosed. The ROI segmenting method includes: performing an edge extracting operation on a captured image to obtain edges of the captured image; selecting edges meeting predetermined criteria from the obtained edges, the predetermined criteria being the similarity between the region surrounded by the selected edges and the pattern formed by a vehicle headlight in physical reality at a position of the selected edges; determining the region surrounded by the selected edges within the captured image as a vehicle headlight pattern; and segmenting the ROI which potentially includes the vehicle pattern from the captured image based on the determined vehicle headlight pattern. With such a method and apparatus, the ROI of a vehicle may be acquired from the image without using the vehicle'"'"'s bottom shadow.
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Citations
19 Claims
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1. A method for segmenting a region of interest (ROI) from an image, comprising:
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performing an edge extracting operation on a captured image to obtain edges of the captured image; selecting edges meeting predetermined criteria from the obtained edges, the predetermined criteria being the similarity between the region surrounded by the selected edges and the pattern formed by a vehicle headlight in physical reality at a position of the selected edges; determining the region surrounded by the selected edges within the captured image as a vehicle headlight pattern; and segmenting the ROI potentially including the vehicle pattern from the captured image based on the determined vehicle headlight pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for detecting a vehicle headlight pattern from an image, comprising:
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performing an edge extracting operation on a captured image to obtain edges of the captured image; selecting edges meeting predetermined criteria from the obtained edges, the predetermined criteria being the similarity between the region surrounded by the selected edges and the pattern formed by the vehicle headlight in physical reality at a position of the selected edges; and determining the region surrounded by the selected edges within the captured image as a vehicle headlight pattern. - View Dependent Claims (9, 10, 11, 12)
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13. An apparatus for segmenting a region of interest (ROI) from an image, comprising:
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an edge extracting module for performing an edge extracting operation on at least a portion of a captured image to obtain edges of the captured image; a selecting module for selecting edges meeting predetermined criteria from the obtained edges, the predetermined criteria being the similarity between the region surrounded by the selected edges and the pattern formed by a vehicle headlight in physical reality at a position of the selected edges; a determining module for determining the region surrounded by the selected edges within the captured image as a vehicle headlight pattern; and a segmenting module for segmenting the ROI potentially including the vehicle pattern from the captured image based on the determined vehicle headlight pattern. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification