Method, apparatus, computer program, computer system, and computer-readable storage medium for representing and searching for an object in an image
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorMiroslaw Bober
Life of this patent
Estimating the term…
Abstract
A method of representing an object appearing in a still or video image, by processing signals corresponding to the image, comprises deriving a plurality of numerical values associated with features appearing on the outline of an object starting from an arbitrary point on the outline and applying a predetermined ordering to said values to arrive at a representation of the outline.
Claims19
1-24. (canceled)
A method of searching for an object in an image or sequence of images by processing signals corresponding to the image or images, the method comprising inputting a query in the form of a two-dimensional outline, deriving a descriptor of said outline, obtaining a descriptor of objects in stored images and comparing said query descriptor with each descriptor for a stored object, and selecting and displaying at least one result corresponding to an image containing an object for which the comparison indicates a degree of similarity between the query and said object, wherein the stored and query descriptors are derived from a curvature scale space representation of the outline of the object, wherein the peak co-ordinate values of the CSS representation are ordered on the basis of the peak height values of the peak co-ordinates.
A method for searching for an object appearing in an image, comprising:
- receiving an input including at least one object having an outline;
- determining a curvature scale space representation for said input outline to generate peak coordinates for the curvature scale space representation;
- ordering said peak coordinates based on peak height value to generate a shape descriptor for said input outline;
- comparing said shape descriptor for said input outline to a shape descriptor for an image stored in memory to find at least one substantially matching image;
- and
- outputting said at least one substantially matching image.
A system for searching for an object appearing in an image, comprising:
- an input device for inputting at least one object having an outline;
- a controller and a detector for receiving said input object having an outline and determining a curvature scale space representation for said input outline to generate peak coordinates for the curvature scale space representation;
- wherein said controller to order said peak coordinates based on peak height value to generate a shape descriptor for said input outline;
- a comparator for comparing said shape descriptor for said input outline to a shape descriptor for an image stored in memory to find at least one substantially matching image;
- and
- a display for displaying said at least one substantially matching image.
A machine-readable medium having stored thereon a plurality of executable instructions, the plurality of instructions comprising instructions to:
- receive an input including at least one object having an outline;
- determine a curvature scale space representation for said input outline to generate peak coordinates for the curvature scale space representation;
- order said peak coordinates based on peak height value to generate a shape descriptor for said input outline;
- compare said shape descriptor for said input outline to a shape descriptor for an image stored in memory to find at least one substantially matching image;
- and
- display said at least one substantially matching image.
Dependencies are inferred from the claim text.