A METHOD FOR OBJECT TRACKING
First Claim
Patent Images
1. A method for object tracking, comprising the steps of:
- S1;
receiving a plurality of coordinates (bounding box) target in an input image from the user,S2;
determining if an acquired image is the first image acquired or not,S3;
if the acquired image is the first image acquired then training of a classifier that discriminates target from the background,S4;
if the acquired image is not the first image acquired then detecting the target using the classifier that is trained in the step,S5;
determining if the detection is successful or not,S6;
if the detection is successful then updating the classifier,S7;
if the detection is unsuccessful for a predefined number of consecutive frames then termination of tracking,wherein the step of S3 further comprising the sub-steps of;
extracting the feature representation of image patches from an input image,training a linear classifier,determining if the change in the classifier is greater than a predefined value,if the change in the classifier is greater than a predefined value then rejecting the training output,if the change in the classifier is not greater than a predefined value then updating the classifier,if the change in the classifier is greater than another predefined value, then saving the original classifier in a database.
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Abstract
The present invention relates to a method for object tracking where the tracking is realized based on object classes, where the classifiers of the objects are trainable without a need for supervision and where the tracking errors are reduced and robustness is increased.
13 Citations
10 Claims
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1. A method for object tracking, comprising the steps of:
-
S1;
receiving a plurality of coordinates (bounding box) target in an input image from the user,S2;
determining if an acquired image is the first image acquired or not,S3;
if the acquired image is the first image acquired then training of a classifier that discriminates target from the background,S4;
if the acquired image is not the first image acquired then detecting the target using the classifier that is trained in the step,S5;
determining if the detection is successful or not,S6;
if the detection is successful then updating the classifier,S7;
if the detection is unsuccessful for a predefined number of consecutive frames then termination of tracking,wherein the step of S3 further comprising the sub-steps of; extracting the feature representation of image patches from an input image, training a linear classifier, determining if the change in the classifier is greater than a predefined value, if the change in the classifier is greater than a predefined value then rejecting the training output, if the change in the classifier is not greater than a predefined value then updating the classifier, if the change in the classifier is greater than another predefined value, then saving the original classifier in a database. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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- 2. (canceled)
Specification