Hierarchically compressing and coding and storing image data

An image processing apparatus for hierarchically compressing and coding image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided, the image processing apparatus comprising:

• hierarchical coding means for compressing and coding the image data in a state where the image data is divided for each hierarchical layer, to obtain compressed codes, wherein the hierarchical coding means creates compressed codes for a first hierarchical layer and creates compressed codes for a second hierarchical layer;
• and
• distributively storing means for distributively storing the compressed codes that are divided for each hierarchical layer by the hierarchical coding means, wherein the distributively storing means comprises:
• means for storing the compressed codes of the first hierarchical layer, without the compressed codes of the second hierarchical layer, in a first computer;
• and
• means for storing the compressed codes of the second hierarchical layer, without the compressed codes of the first hierarchical layer, in a second computer.

An image processing apparatus for hierarchically compressing and coding image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided, the image processing apparatus comprising:

• a rectangular region coding unit to compress and code the image data in a state where the image data is divided for each rectangular region, to obtain compressed codes, wherein the rectangular region coding unit creates compressed codes for a first rectangular region and creates compressed codes for a second rectangular region;
• and
• a distributively storing unit to distributively store the compressed codes that are divided for each rectangular region by the rectangular region coding unit, wherein the distributively storing unit comprises:
• a first storing unit to store the compressed codes of the first rectangular region, without the compressed codes of the second rectangular region, in a first computer;
• and
• a second storing unit to separately store the compressed codes of the second rectangular region, without the compressed codes of the first rectangular region, in a second computer.

An image processing apparatus for hierarchically compressing and coding image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided, the image processing apparatus comprising:

• rectangular region coding means for compressing and coding the image data in a state where the image data is divided for each rectangular region, to obtain compressed codes, wherein the rectangular region coding means creates compressed codes for a first rectangular region and creates compressed codes for a second rectangular region;
• and
• distributively storing means for distributively storing the compressed codes that are divided for each rectangular region by the rectangular region coding means, wherein the distributively storing means comprises:
• means for storing the compressed codes of the first rectangular region, without the compressed codes of the second rectangular region, in a first computer;
• and
• means for storing the compressed codes of the second rectangular region, without the compressed codes of the first rectangular region, in a second computer.

An article of manufacture comprising one or more recordable media having instructions stored thereon which, when executed by a computer, cause the computer to perform an image data processing method for hierarchically compressing and coding image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided, the method comprising:

• causing the computer to compress and code the image data in a state where the image data is divided for each hierarchical layer, to obtain compressed codes, wherein causing the computer to compress and code comprises:
• creating the compressed codes of a first hierarchical layer;
• and
• creating the compressed codes of a second hierarchical layer;
• and
• causing the computer to distributively store the compressed codes which are divided for each hierarchical layer by the hierarchical coding procedure, wherein causing the computer to distributively store comprises:
• storing the compressed codes of the first hierarchical layer, without the compressed codes of the second hierarchical layer, in a first computer;
• and
• storing the compressed codes of the second hierarchical layer, without the compressed codes of the first hierarchical layer, in a second computer.

An article of manufacture comprising one or more recordable media having instructions stored thereon which, when executed by a computer, cause the computer to perform an image data processing method for hierarchically compressing and coding image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided, the method comprising:

• causing the computer to compress and code the image data in a state where the image data is divided for each rectangular region, to obtain compressed codes, wherein the causing the computer to compress and code comprises:
• creating compressed codes for a first rectangular region;
• and
• creating compressed codes for a second rectangular region;
• and
• causing the computer to distributively store the compressed codes which are divided for each rectangular region by the rectangular region coding procedure, wherein the causing the computer to distributively store comprises:
• storing the compressed codes of the first rectangular region, without the compressed codes of the second rectangular region, in a first computer;
• and
• storing the compressed codes of the second rectangular region, without the compressed codes of the first rectangular region, in a second computer.

An image processing apparatus for hierarchically compressing and coding image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided, the image processing apparatus comprising:

• a hierarchical coding unit to compress and code the image data in a state where the image data is divided for each hierarchical layer, to obtain compressed codes, wherein the hierarchical coding unit comprises:
• a first-level coding unit to receive the image data and to create the compressed codes of a first hierarchical layer;
• and
• a second-level coding unit to receive a sub-band of the first hierarchical layer from the first-level coding unit and to create the compressed codes of a second hierarchical layer, wherein the second hierarchical layer is a lower hierarchical layer than the first hierarchical layer;
• and
• a distributively storing unit to distributively store the compressed codes that are divided for each hierarchical layer by the hierarchical coding unit, wherein the distributively storing unit comprises:
• a first-level storing unit to only receive the compressed codes of the first hierarchical layer from the first-level coding unit and to store the compressed codes of the first hierarchical layer, without the compressed codes of the second hierarchical layer, in a first computer;
• and
• a second-level storing unit to only receive the compressed codes of the second hierarchical layer, without the compressed codes of the first rectangular region, in a second computer.