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US 6,606,417 B1Granted
Method and system for searching for images based on color and shape of a selected image
AssigneeMicrosoft Corporation
InventorEric L. Brechner
Life of this patent
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Abstract
A method and system that allows a user to find images using a query by example is disclosed. Images similar to the selected image are retrieved based on color or shape. Each clip in a clip catalog is assigned a color metric and a wavelet, i.e., shape, metric. The selected clip is also assigned a color metric and a wavelet metric. Those clips that are most similar based on either the wavelet metric or the color metric are returned to the user.
Claims15
A method for computing a wavelet signature for an image comprising:
- (a) centering the image on a field;
- (b) converting the image to a standard color space;
- (c) normalizing colors;
- (d) performing a wavelet transform;
- (e) finding a plurality of the largest coefficients by magnitude for each color plane;
- (f) encoding a row/column location for each of the largest coefficients by increasing resolution;
- (g) encoding the sign of the largest coefficients;
- and
- (h) storing weight values for the row/column location for the largest coefficients.
6 more elements
A system for computing a wavelet signature for an image comprising:
- (a) a processing unit;
- and
- (b) a storage medium coupled to the processing unit, the storage medium storing program code implemented by the processing unit for:
- (i) centering the image on a field;
- (ii) converting the image to a standard color space;
- (iii) normalizing colors;
- (iv) performing a wavelet transform;
- (v) finding a plurality of the largest coefficients by magnitude for each color plane;
- (vi) encoding a row/column location for each of the largest coefficients by increasing resolution;
- (vii) encoding the sign of the largest coefficients;
- and
- (viii) storing weight values for the row/column location for the largest coefficients.
9 more elements
Dependencies are inferred from the claim text.