CA2228166A1 - Image predictive coding apparatus and method, image predictive decoding apparatus and method and recording medium - Google Patents

Image predictive coding apparatus and method, image predictive decoding apparatus and method and recording medium

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Publication number
CA2228166A1
CA2228166A1 CA002228166A CA2228166A CA2228166A1 CA 2228166 A1 CA2228166 A1 CA 2228166A1 CA 002228166 A CA002228166 A CA 002228166A CA 2228166 A CA2228166 A CA 2228166A CA 2228166 A1 CA2228166 A1 CA 2228166A1
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Canada
Prior art keywords
image data
small region
image predictive
image
processed
Prior art date
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Granted
Application number
CA002228166A
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French (fr)
Other versions
CA2228166C (en
Inventor
Choong Seng Boon
Sheng Mei Shen
Thiow Keng Tan
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Panasonic Holdings Corp
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Individual
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Publication of CA2228166C publication Critical patent/CA2228166C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
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    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
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    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
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    • H04N19/619—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding the transform being operated outside the prediction loop
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    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets

Abstract

The present invention is directed to an image predictive coding apparatus and method, image predictive decoding apparatus method and recording medium which stores therein the image predictive coding method or the image predictive decoding method, of which the transform efficiency is remarkably improved in comparison with known prior art. According to the above image predictive coding apparatus and method, when dividing inputted image data to be coded into image data of a plurality of small regions which are adjacent to each other and coding the image data of an objective small region to be processed among the image data of the plurality of divided small regions which are adjacent to each other, reconstructed image data of a reproduction small region adjacent to the image data of the objective small region to be processed is used as image data of an intra-frame prediction small region of the objective small region to be processed, the image data of intra-frame prediction small region is used as image data of an optimum prediction small region and image data of a difference small region which are differences between the image data of the objective small region to be processed and the image data of the optimum prediction small region is generated. Then, the generated image data of the difference small region is coded and outputted, and then the coded image data of the difference small region is decoded, so that the reconstructed image data of the reproduction small region is generated by adding the decoded image data of the difference small region to the image data of the optimum prediction small region.
CA 2228166 1996-05-28 1997-05-28 Image predictive coding apparatus and method, image predictive decoding apparatus and method and recording medium Expired - Lifetime CA2228166C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JPP8-132970 1996-05-28
JP13297096 1996-05-28
JPP8-176426 1996-07-05
JP17642696 1996-07-05
JPP8-254677 1996-09-26
JP25467796 1996-09-26
PCT/JP1997/001800 WO1997046021A1 (en) 1996-05-28 1997-05-28 Device and method for predicting and encoding image, device and method for predicting and decoding image, and recording medium

Publications (2)

Publication Number Publication Date
CA2228166A1 true CA2228166A1 (en) 1997-12-04
CA2228166C CA2228166C (en) 2002-04-30

Family

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Family Applications (1)

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CA 2228166 Expired - Lifetime CA2228166C (en) 1996-05-28 1997-05-28 Image predictive coding apparatus and method, image predictive decoding apparatus and method and recording medium

Country Status (11)

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US (13) US6148109A (en)
EP (9) EP1835761A3 (en)
JP (5) JP3369573B2 (en)
KR (7) KR100403077B1 (en)
CN (6) CN100361536C (en)
BR (1) BR9702224B1 (en)
CA (1) CA2228166C (en)
DE (5) DE69709914T2 (en)
ES (5) ES2170744T3 (en)
MX (1) MX9800656A (en)
WO (1) WO1997046021A1 (en)

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