Identifying consumer products in images
First Claim
Patent Images
1. A method for identifying consumer products in images, comprising:
- capturing first images of known consumer products, pixels of the first images corresponding to grayscale or color;
converting to binary the pixels of the first images according to three different thresholds to obtain three binary first images having pluralities of binary pixels;
receiving second images of unknown consumer products, pixels of the second images corresponding to grayscale or color;
converting to binary the pixels of the second images according to said three different thresholds to obtain three binary secondary images having pluralities of binary pixels;
finding three image features corresponding to one another in each of the three binary first images and the three binary secondary images;
devising triangles between the three image features in said each of the first and the second images; and
determining if the triangles are similar to identify or not possible matches of the known consumer products within the second images, thus identifying or not known consumer products at a location from whence the second images were captured.
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Abstract
Systems and methods identify consumer products in images. Known consumer products are captured as grayscale or color images. They are converted to binary at varying thresholds. Connected components in the binary images identify image features according to pixels of a predetermined size, shape, solidity, aspect ratio, and the like. The image features are stored and searched for amongst image features similarly extracted from unknown images of consumer products. Identifying correspondence between the features of the images lends itself to identifying or not known consumer products.
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Citations
9 Claims
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1. A method for identifying consumer products in images, comprising:
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capturing first images of known consumer products, pixels of the first images corresponding to grayscale or color; converting to binary the pixels of the first images according to three different thresholds to obtain three binary first images having pluralities of binary pixels; receiving second images of unknown consumer products, pixels of the second images corresponding to grayscale or color; converting to binary the pixels of the second images according to said three different thresholds to obtain three binary secondary images having pluralities of binary pixels; finding three image features corresponding to one another in each of the three binary first images and the three binary secondary images; devising triangles between the three image features in said each of the first and the second images; and determining if the triangles are similar to identify or not possible matches of the known consumer products within the second images, thus identifying or not known consumer products at a location from whence the second images were captured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification