Method and device for traffic sign recognition
AssigneeAgency for Science, Technology and Research
InventorsTao CHEN, Shijian LU
Life of this patent
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Abstract
Embodiments provide a method for recognizing a traffic sign from an input image. The method may include extracting image features from the input image; modifying the image features based on a predetermined image saliency map to determine modified image features; determining a plurality of traffic sign candidates by applying an adaptive boosting algorithm on the modified image features; determining a confidence score for each traffic sign candidate by applying a support vector regression algorithm; and recognizing a traffic sign based on the confidence score for each traffic sign candidate.
Claims20
A method for recognizing a traffic sign from an input image, the method comprising:
- extracting image features from the input image;
- modifying the image features based on a predetermined image saliency map to determine modified image features;
- determining a plurality of traffic sign candidates by applying an adaptive boosting algorithm on the modified image features;
- determining a confidence score for each traffic sign candidate by applying a support vector regression algorithm;
- and
- recognizing a traffic sign based on the confidence score for each traffic sign candidate.
A device for recognizing a traffic sign from an input image, the device comprising:
- an image feature extracting circuit for extracting image features from the input image;
- an image feature modifying circuit for modifying the image features based on a predetermined image saliency map to determine modified image features;
- a traffic sign candidate determining circuit for determining a plurality of traffic sign candidates by applying an adaptive boosting algorithm on the modified image features;
- a confidence score determining circuit for determining a confidence score for each traffic sign candidate by applying a support vector regression algorithm;
- and
- a traffic sign recognizing circuit for recognizing a traffic sign based on the confidence score for each traffic sign candidate.
Dependencies are inferred from the claim text.