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AssigneeCanon Kabushiki Kaisha
InventorJames Philip Andrew
Estimating the term…
The method generates a compressed digital image from a original image. The compressed digital image allows random access to portions of the compressed image at a number of resolutions. The original image is first transformed (103) by a multi-level DWT to form a non redundant multiple resolution frequency domain representation of the image. The representation comprises a DC subband and a plurality of high frequency subbands arranged as levels, where each level represents a frequency contribution between adjacent resolutions and where each subband comprises a plurality of tiles. The DC subband is then entropy encoded (104) into the bitstream. The high frequency subbands are next entropy encoded (108,109, and 110) into the bitstream in level order (105,113,114) and tile order (107,111).
A method of encoding a coded representation of a digital image, wherein the coded representation includes a non-redundant hierarchical code, having one low frequency subband and a plurality of high frequency subbands arranged in levels, which levels combine to represent multiple resolutions of the image, said method including the steps of:
A method of encoding a digital image, to provide substantially random access to portions of said image at a plurality of nominated resolutions, said method including the steps of:
A method of encoding a digital image into a bit stream, to provide substantially random access to portions of said image at a plurality of nominated resolutions, said method including the steps of:
A method of encoding a digital image including the steps of:
A method of encoding a coded representation of a digital image, wherein the coded representation includes a non-redundant hierarchical code, having one low frequency subband and a plurality of high frequency subbands arranged in levels, which levels combine to represent multiple resolutions of the image, said method including the steps of:
A method of encoding a digital image into a bit stream, said method including the steps of:
A method of encoding a digital image into a bit stream, said method including the steps of:
A method of encoding a sequential stream of data for providing substantially random access to portions of an image at a plurality of predetermined resolutions, said stream including a non-redundant multiple resolution frequency domain representation of the image, said representation comprising one low frequency subband and a plurality of high frequency subbands arranged in levels, wherein each subband is divided into a plurality of tiles and each level represents frequency contributions between adjacent resolutions of the image, and wherein each tile represents a frequency contribution to a portion of the image at a predetermined resolution, said method including:
A method of decoding a sequential stream of data for providing substantially random access to portions of an image at a plurality of predetermined resolutions, said stream including a non-redundant multiple resolution frequency domain representation of the image, said representation comprising one low frequency subband and a plurality of high frequency subbands arranged in levels, wherein each subband is divided into a plurality of tiles and each level represents frequency contributions between adjacent resolutions of the image, and wherein each tile represents a frequency contribution to a portion of the image at a predetermined resolution, said method including:
An apparatus for encoding a coded representation of a digital image, wherein the coded representation includes a non-redundant hierarchical code, having one low frequency subband and a plurality of high frequency subbands arranged in levels, which levels combine to represent multiple resolutions of the image, said apparatus including:
An apparatus for encoding a digital image, to provide substantially random access to portions of said image at a plurality of nominated resolutions, said apparatus including:
An apparatus for encoding a digital image into a bit stream, to provide substantially random access to portions of said image at a plurality of nominated resolutions, said apparatus including:
An apparatus for encoding a digital image including:
An apparatus for encoding a coded representation of a digital image, wherein the coded representation includes a non-redundant hierarchical code, having one low frequency subband and a plurality of high frequency subbands arranged in levels, which levels combine to represent multiple resolutions of the image, said apparatus including:
An apparatus for encoding a digital image into a bit stream, said apparatus including:
An apparatus for encoding a digital image into a bit stream, said apparatus including:
An apparatus for encoding a sequential stream of data for providing substantially random access to portions of an image at a plurality of predetermined resolutions, said stream including a non-redundant multiple resolution frequency domain representation of the image, said representation comprising one low frequency subband and a plurality of high frequency subbands arranged in levels, wherein each subband is divided into a plurality of tiles and each level represents frequency contributions between adjacent resolutions of the image, and wherein each tile represents a frequency contribution to a portion of the image at a predetermined resolution, said apparatus including:
An apparatus for decoding a sequential stream of data for providing substantially random access to portions of an image at a plurality of predetermined resolutions, said stream including a non-redundant multiple resolution frequency domain representation of the image, said representation comprising one low frequency subband and a plurality of high frequency subbands arranged in levels, wherein each subband is divided into a plurality of tiles and each level represents frequency contributions between adjacent resolutions of the image, and wherein each tile represents a frequency contribution to a portion of the image at a predetermined resolution, said apparatus including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a coded representation of a digital image, wherein the coded representation includes a non-redundant hierarchical code, having one low frequency subband and a plurality of high frequency subbands arranged in levels, which levels combine to represent multiple resolutions of the image, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a digital image, to provide substantially random access to portions of said image at a plurality of nominated resolutions, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a digital image into a bit stream, to provide substantially random access to portions of said image at a plurality of nominated resolutions, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a digital image, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a coded representation of a digital image, wherein the coded representation includes a non-redundant hierarchical code, having one low frequency subband and a plurality of high frequency subbands arranged in levels, which levels combine to represent multiple resolutions of the image, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a digital image into a bit stream, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a digital image into a bit stream, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a sequential stream of data for providing substantially random access to portions of an image at a plurality of predetermined resolutions, said stream including a non-redundant multiple resolution frequency domain representation of the image, said representation comprising one low frequency subband and a plurality of high frequency subbands arranged in levels, wherein each subband is divided into a plurality of tiles and each level represents frequency contributions between adjacent resolutions of the image, and wherein each tile represents a frequency contribution to a portion of the image at a predetermined resolution, said computer program product including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for decoding a sequential stream of data for providing substantially random access to portions of an image at a plurality of predetermined resolutions, said stream including a non-redundant multiple resolution frequency domain representation of the image, said representation comprising one low frequency subband and a plurality of high frequency subbands arranged in levels, wherein each subband is divided into a plurality of tiles and each level represents frequency contributions between adjacent resolutions of the image, and wherein each tile represents a frequency contribution to a portion of the image at a predetermined resolution, said computer program product including:
A method of encoding a digital image, the method including the steps of:
An apparatus for encoding a digital image, the apparatus including:
A computer program product comprising a computer readable medium having recorded thereon a computer program for encoding a digital image, the computer program product comprising:
Dependencies are inferred from the claim text.