CA2452550A1 - An apparatus and method for encoding digital image data in a lossless manner - Google Patents

An apparatus and method for encoding digital image data in a lossless manner Download PDF

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Publication number
CA2452550A1
CA2452550A1 CA002452550A CA2452550A CA2452550A1 CA 2452550 A1 CA2452550 A1 CA 2452550A1 CA 002452550 A CA002452550 A CA 002452550A CA 2452550 A CA2452550 A CA 2452550A CA 2452550 A1 CA2452550 A1 CA 2452550A1
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image
version
data file
lossy
residual
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French (fr)
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CA2452550C (en
Inventor
Vijayalakshmi R. Raveendran
Kadayam Thyagarajan
John Ratzel
Steven A. Morley
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Qualcomm Inc
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Qualcomm Incorporated
Vijayalakshmi R. Raveendran
Kadayam Thyagarajan
John Ratzel
Steven A. Morley
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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
    • H04N19/169—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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/169—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
    • 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
    • H04N19/172—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 the region being a picture, frame or field
    • 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
    • H04N19/169—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
    • 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
    • H04N19/176—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 the region being a block, e.g. a macroblock
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Abstract

A method (900) of losslessly compressing and encoding signals representing image information is claimed. A lossy compressed data file (922) and a residual compressed data file (960) are generated. When the lossy compressed data file and the residual compressed file are combined, a lossless data fil e that is substantially identical to the original data file is created.</SDOAB >

Claims (22)

1. A method of losslessly compressing and encoding signals representing an image, the method comprising:
generating a lossy compressed data file;
generating a residual compressed data file; and combining the lossy data file with the residual data file to create a lossless data file, wherein the lossless data file is substantially identical to the original data file.
2. The method as set forth in Claim 1, wherein the lossy compressed data file and the residual compressed data file are generated on an intraframe basis or an interframe basis.
3. The method set forth in Claim 1, wherein generating utilizes a combination of discrete cosine transform (DCT) and discrete quadtree transform (DQT) techniques.
4. The method set forth in Claim 1, wherein generating utilizes Golomb-Rice coding techniques.
5. An apparatus to losslessly compress and encode signals representing an image, the apparatus comprising:
means for generating a lossy compressed data file;
means for generating a residual compressed data file; and means for combining the lossy data file with the residual data file to create a lossless data file, wherein the lossless data file is substantially identical to the original data file.
6. The apparatus as set forth in Claim 5, wherein the means for generating the lossy compressed data file and the means for generating the residual compressed data file are generated on an intraframe basis or an interframe basis.
7. The apparatus set forth in Claim 5, wherein the means for generating utilizes a combination of discrete cosine transform (DCT) and discrete quadtree transform (DQT) techniques.
8. The method set forth in Claim 5, wherein the means for generating utilizes Golomb-Rice coding techniques.
9. A method for losslessly compressing and encoding signals representing an image, the method comprising:
compressing the signals representing the image thereby creating a compressed version of the image;
quantizing the compressed version of the image thereby creating a lossy version of the image;
serializing the quantized compressed version of the image thereby creating a serialized quantized compressed version of the image;
decompressing the compressed version of the image;
determining the differences between the image and the decompressed version of the image thereby creating a residual version of the image; and outputting the lossy version of the image and the residual version of the image, wherein the combination of the lossy version of the image and the residual version of the image is substantially the same as the original image.
10. The method set forth in Claim 9, wherein the lossless compression is on an intraframe basis.
11. The method set forth in Claim 9, wherein compressing utilizes a combination of discrete cosine transform (DCT) and discrete quadtree transform (DQT) techniques.
12. The method set forth in Claim 9, wherein serializing utilizes Golomb-Rice coding techniques.
13. A method for losslessly compressing and encoding signals representing image information, the image comprising a plurality of frames, the method comprising:
compressing a first frame thereby creating a compressed version of the image;
quantizing the compressed version of the image thereby creating a lossy version of the image;

serializing the quantized compressed version of the image thereby creating a serialized quantized compressed version of the image;
compressing a second frame of signals representing the image;
determining the differences between the first frame and the second frame of the image thereby creating a residual version of the image; and outputting the lossy version of the image with the residual version of the image, wherein the combination of the lossy version of the image and the residual version of the image is substantially the same as the original image.
14. The method set forth in Claim 13, wherein the lossless compression is on an interframe basis.
15. The method set forth in Claim 13, wherein compressing utilizes a combination of discrete cosine transform (DCT) and discrete quadtree transform (DQT) techniques.
16. The method set forth in Claim 13, wherein serializing utilizes Golomb-Rice coding techniques.
17. An apparatus for losslessly compressing and encoding signals representing an image, the method comprising:
means for compressing the signals representing the image thereby creating a compressed version of the image;
means for quantizing the compressed version of the image thereby creating a lossy version of the image;
means for serializing the quantized compressed version of the image thereby creating a serialized quantized compressed version of the image;
means for decompressing the compressed version of the image;
means for determining the differences between the image and the decompressed version of the image thereby creating a residual version of the image; and means for outputting the lossy version of the image and the residual version of the image, wherein the combination of the lossy version of the image and the residual version of the image is substantially the same as the original image.
18. The apparatus set forth in Claim 17, wherein the lossless compression is on an intraframe basis.
19. The apparatus set forth in Claim 17, wherein the means for compressing utilizes a combination of discrete cosine transform (DCT) and discrete quadtree transform (DQT) techniques.
20. An apparatus for losslessly compressing and encoding signals representing image information, the image comprising a plurality of frames, the method comprising:
means for compressing a first frame thereby creating a compressed version of the image;
means for quantizing the compressed version of the image thereby creating a lossy version of the image;
means for serializing the quantized compressed version of the image thereby creating a serialized quantized compressed version of the image;
means for compressing a second frame of signals representing the image;
means for determining the differences between the first frame and the second frame of the image thereby creating a residual version of the image; and means for outputting the lossy version of the image with the residual version of the image, wherein the combination of the lossy version of the image and the residual version of the image is substantially the same as the original image.
21. The apparatus set forth in Claim 20, wherein the lossless compression is on an interframe basis.
22. The apparatus set forth in Claim 20, wherein the means for compressing utilizes a combination of discrete cosine transform (DCT) and discrete quadtree transform (DQT) techniques.
CA2452550A 2001-07-02 2002-07-02 An apparatus and method for encoding digital image data in a lossless manner Expired - Fee Related CA2452550C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US30285301P 2001-07-02 2001-07-02
US60/302,853 2001-07-02
US10/180,828 2002-06-26
US10/180,828 US7483581B2 (en) 2001-07-02 2002-06-26 Apparatus and method for encoding digital image data in a lossless manner
PCT/US2002/021151 WO2003005626A2 (en) 2001-07-02 2002-07-02 An apparatus and method for encoding digital image data in a lossless manner

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CA2452550A1 true CA2452550A1 (en) 2003-01-16
CA2452550C CA2452550C (en) 2012-09-18

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EP (1) EP1402464A4 (en)
JP (2) JP4800571B2 (en)
KR (1) KR100946600B1 (en)
CN (1) CN1293509C (en)
AU (1) AU2002318196B2 (en)
BR (1) BRPI0210786B1 (en)
CA (1) CA2452550C (en)
HK (1) HK1070452A1 (en)
MX (1) MXPA04000129A (en)
WO (1) WO2003005626A2 (en)

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