Method and device for displaying or searching for object in image and computer-readable storage medium
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorMiroslaw Z. Bober
Life of this patent
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Abstract
A method of representing an object appearing in a still or video image, by processing signals corresponding to the image, comprises deriving a curvature scale space (CSS) representation of the object outline by smoothing the object outline, deriving at least one additional parameter reflecting the shape or mass distribution of a smoothed version of the original curve, and associating the CSS representation and the additional parameter as a shape descriptor of the object.
Claims21
A method of representing an object appearing in a still or video image, by processing signals corresponding to the image using one or more processors, the method comprising:
- deriving, using a processor, a curvature scale space (CSS) representation of the object outline by smoothing the object outline,
- deriving, using a processor, at least one additional parameter reflecting the shape or mass distribution of the smoothed version of the original object outline, and
- associating the CSS representation and said at least one additional parameter as a shape descriptor of the object,
- wherein said at least one additional parameter corresponds to the eccentricity of said smoothed version of the original object outline.
A control device for representing an object appearing in an image by processing signals corresponding to the image, comprising:
- a controller for performing the steps of:
- deriving a curvature scale space (CSS) representation of an object outline by smoothing the object outline,
- deriving at least one additional parameter reflecting a shape or mass distribution of a smoothed version of the original object outline, and
- associating the CSS representation and the additional parameter as a shape descriptor of the object,
- wherein said at least one additional parameter corresponds to the eccentricity of said smoothed version of the original object outline.
A method for representing an object appearing in an image by processing signals corresponding to the image using one or more processors, comprising:
- determining, using a processor, a curvature scale space representation for an object outline to generate a plurality of curves representative of said outline;
- and
- determining, using a processor, characteristics associated with said outline including peaks and associated peak coordinates for said plurality of curves and eccentricity of a smoothed version of said outline to generate a shape descriptor for said outline.
A method for identifying an outline of an object by processing signals corresponding to the image using one or more processors, comprising:
- identifying an object outline as a shape descriptor and storing said outline in a memory, wherein said identifying includes:
- determining, using a processor, a curvature scale space representation for an object outline to generate a plurality of curves representative of said outline;
- and
- determining, using a processor, characteristics associated with said outline including peaks and associated peak coordinates for said plurality of curves and eccentricity of a smoothed version of said outline to generate said shape descriptor for said outline.
A method for recovering an outline of an object appearing in an image by processing signals corresponding to the image using one or more processors, comprising:
- recovering, using a processor, an object outline from a shape descriptor wherein said shape descriptor is generated by:
- determining a curvature scale space representation for an object outline to generate a plurality of curves representative of said outline;
- and
- determining characteristics associated with said outline including peaks and associated peak coordinates for said plurality of curves and eccentricity of a smoothed version of said outline to generate said shape descriptor for said outline.
A system for representing an object appearing in an image, comprising:
- a controller and a detector for determining a curvature scale space representation for an object outline to generate a plurality of curves representative of said outline;
- wherein said controller to determine characteristics associated with said outline including peaks and associated peak coordinates for said plurality of curves and eccentricity of a smoothed version of said outline to generate a shape descriptor for said outline;
- and
- a memory for storing said shape descriptor as a description for said object in a memory.
A system for recovering an outline of an object, comprising:
- a controller and a detector for recovering an object outline from a shape descriptor, wherein said controller and detector to determine a curvature scale space representation for said object outline to generate a plurality of curves representative of said outline;
- wherein said controller to determine characteristics associated with said outline including peaks and associated peak coordinates for said plurality of curves and eccentricity of a smoothed version of said outline to generate said shape descriptor for said outline;
- and
- a memory for storing said shape descriptor as a description for said object in a memory.
A computer-readable medium having stored thereon a plurality of executable instructions, the plurality of instructions comprising instructions to:
- determine a curvature scale space representation for an object outline to generate a plurality of curves representative of said outline;
- determine characteristics associated with said outline including peaks and associated peak coordinates for said plurality of curves and eccentricity of a smoothed version of said outline to generate a shape descriptor for said outline;
- and
- store said shape descriptor as a description for said object in a memory.
Dependencies are inferred from the claim text.