SYSTEM AND METHOD FOR DETECTING STILL OBJECTS IN IMAGES
First Claim
1. A method for detecting at least one target object in at least one image comprising:
- receiving a dataset of training samples, said training samples including images of the still target object;
selecting regions in the training samples potentially having the still target object;
computing an extended histogram of oriented gradient (HOG) feature in an image patch of the selected region to generate an angle dimension and a distance dimension of each pixel in said image patch; and
training at least one classifier based on the computed extended HOG feature to detect the still target object in said image patch.
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Abstract
The present invention provides an improved system and method for object detection with histogram of oriented gradient (HOG) based support vector machine (SVM). Specifically, the system provides a computational framework to stably detect still or not moving objects over a wide range of viewpoints. The framework includes providing a sensor input of images which are received by the “focus of attention” mechanism to identify the regions in the image that potentially contain the target objects. These regions are further computed to generate hypothesized objects, specifically generating selected regions containing the target object hypothesis with respect to their positions. Thereafter, these selected regions are verified by an extended HOG-based SVM classifier to generate the detected objects.
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Citations
12 Claims
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1. A method for detecting at least one target object in at least one image comprising:
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receiving a dataset of training samples, said training samples including images of the still target object;
selecting regions in the training samples potentially having the still target object;
computing an extended histogram of oriented gradient (HOG) feature in an image patch of the selected region to generate an angle dimension and a distance dimension of each pixel in said image patch; and
training at least one classifier based on the computed extended HOG feature to detect the still target object in said image patch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification