Object classification in video images
First Claim
Patent Images
1. A method of classifying objects from image frames, the method comprising:
- applying an intra-frame feature based object classifier to objects within each image frame to identify object classes for objects in the frame;
applying an inter-frame object classifier to persistent objects in sequence of frames to identify object classes for objects in multiple frames; and
applying a sequential classifier to multiple sequential frames to classify an object as a function of the classifications by the feature based object classifiers.
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Abstract
A combination of inter-frame and intra-frame and sequential classification methods provide for robust and flexible object classification. Intra-frame classification determines the object type based on features extracted from a single image. Inter-frame classification determines object types based on the features extracted from several sequential frames. A sequential classification combines the results of the inter- and intra-frame classifications over a sequence of images.
37 Citations
19 Claims
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1. A method of classifying objects from image frames, the method comprising:
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applying an intra-frame feature based object classifier to objects within each image frame to identify object classes for objects in the frame;
applying an inter-frame object classifier to persistent objects in sequence of frames to identify object classes for objects in multiple frames; and
applying a sequential classifier to multiple sequential frames to classify an object as a function of the classifications by the feature based object classifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of classifying objects from image frames, the method comprising:
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applying an intra-frame feature based object classifier to objects in multiple sequential frames to identify object classes for objects in each frame;
an inter-frame feature based classifier that classifies objects as a function of features of the objects in multiple frames; and
applying a sequential classifier to multiple sequential frames to classify an object as a function of the classifications by the feature based object classifiers. - View Dependent Claims (14, 15, 16)
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17. An object classifier that classifies objects from multiple image frames, the classifier comprising:
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a feature based object classifier that processes multiple sequential frames to identify object classes for objects in each frame; and
a multi-frame classifier that processes multiple sequential frames to classify an object as a function of the classifications by the feature based object classifier. - View Dependent Claims (18, 19)
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Specification