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AssigneesSony Corporation, Sony Electronics Inc.
InventorLizhi Wang
Estimating the term…
A method of determining a correlation between images, wherein each image is represented by an image descriptor. Each image descriptor comprises a peak descriptor, a set of statistic descriptors, and a set of co-occurence descriptors. Initially, a category associated with each image descriptor is determined. Provided the image descriptors belong to a common category, a difference value between select corresponding components of respective image descriptors is determined in accordance with an associated correlation protocol, the difference value representing the correlation between the images represented by respective image descriptors.
A method of determining a correlation between images, wherein each image is represented by an image descriptor, each image descriptor comprising a peak descriptor, a set of statistic descriptors, and a set of co-occurence descriptors, the method comprising:
A computer software product including a medium readable by a processor, the medium having stored thereon a sequence of executable instructions which, when executed by a processor, cause the processor to:
Dependencies are inferred from the claim text.
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Based on statistical description of texture: using co-occurrence matrix computation
Extraction of image or video features: global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or…
Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching: shifting the…
Query processing, i.e. searching: pattern matching access
Term ended 9 Mar 2019 (estimated)
The present invention relates to image descriptors and image processing. More specifically, the present invention relates to a technique for determining a correlation between images represented by multi-element image descriptors.
Image processing allows for the comparison of a reference image against another image or multiple images in order to determine a “match” or correlation between the respective images. Accordingly, a variety of different image matching techniques have been employed to determine such a match or correlation between images.
One such image matching technique is known as object classification. The object classification technique operates by segmenting the original image into a series of discrete objects which are then measured using a variety of shape measurement identifications, such as shape dimensions and statistics, to identify each discrete object. Accordingly, each of the discrete objects are then classified into different categories by comparing the shape measurement identifications associated with each of the discrete objects against known shape measurement identifications of known reference objects. As such, the shape measurement identifications associated with each of the discrete objects are compared against known shape measurement identifications of known reference objects in order to determine a correlation or match between the images.
The file of this patent contains at least one color drawing executed in color. Copies of this patent with color drawings will be provided by the Patent and Trademark Office upon request and payment of necessary fee.
The present invention is illustrated by way of example in the following drawings in which like references indicate similar elements. The following drawings disclose various embodiments of the present invention for purposes of illustration only and are not intended to limit the scope of the invention.
FIG. 1 illustrates an embodiment of a method for generating an multi-element image descriptor which is capable of implementing the teachings of the present invention.
The following detailed description sets forth numerous specific details to provide a thorough understanding of the invention. However, those of ordinary skill in the art will appreciate that the invention may be practiced without these specific details. In other instances, well-known methods, procedures, protocols, components, algorithms, and circuits have not been described in detail so as not to obscure the invention.
FIG. 1 illustrates an embodiment of a method for generating an multi-element image descriptor which is capable of implementing the teachings of the present invention. Particularly, FIG. 1 illustrates, in block flow diagram format, a method of generating an image descriptor which is representative of a multi-band image for use in image processing.
Image features extracted from the output of spatial filters are often used for image representation. The application of multi-band images to spatial filters enables the construction of feature sets which contain a wide range of spectral and spatial properties. One such type of oriented spatial filter is the steerable filter, steerable filters obtain information about the response of a filter at any orientation using a small set of basis filters. In one embodiment, x 2 exp ( - x 2 + y 2 2 * σ 2 )