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FI20065754L - Image processing method - Google Patents

Image processing method Download PDF

Info

Publication number
FI20065754L
FI20065754L FI20065754A FI20065754A FI20065754L FI 20065754 L FI20065754 L FI 20065754L FI 20065754 A FI20065754 A FI 20065754A FI 20065754 A FI20065754 A FI 20065754A FI 20065754 L FI20065754 L FI 20065754L
Authority
FI
Finland
Prior art keywords
block
random access
state information
buffer state
access table
Prior art date
Application number
FI20065754A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20065754A0 (en
FI20065754A7 (en
Inventor
Tapio Viitanen
Original Assignee
Liquid Air Lab Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liquid Air Lab Gmbh filed Critical Liquid Air Lab Gmbh
Priority to FI20065754A priority Critical patent/FI20065754A7/en
Publication of FI20065754A0 publication Critical patent/FI20065754A0/en
Priority to PCT/FI2007/050638 priority patent/WO2008065249A1/en
Publication of FI20065754L publication Critical patent/FI20065754L/en
Publication of FI20065754A7 publication Critical patent/FI20065754A7/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • 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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/197—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

The present invention relates to a method for processing a compressed digital image. A random access table is stored for each image block. The random access table comprises bit buffer state information in the beginning of a block in the bit stream and an indicator for defining a position at which reading of data from the bit stream is to be continued. The bit buffer state information of a block is retrieved from the random access table in response to a need to decode at least portion of the block. A desired number of coefficients following the DC coefficient is decoded on the basis of the retrieved bit buffer state information and information read from the encoded bit stream starting from the position defined on the basis of the indicator.
FI20065754A 2006-11-28 2006-11-28 Image processing method FI20065754A7 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20065754A FI20065754A7 (en) 2006-11-28 2006-11-28 Image processing method
PCT/FI2007/050638 WO2008065249A1 (en) 2006-11-28 2007-11-26 Image processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20065754A FI20065754A7 (en) 2006-11-28 2006-11-28 Image processing method

Publications (3)

Publication Number Publication Date
FI20065754A0 FI20065754A0 (en) 2006-11-28
FI20065754L true FI20065754L (en) 2008-05-29
FI20065754A7 FI20065754A7 (en) 2008-05-29

Family

ID=37482566

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20065754A FI20065754A7 (en) 2006-11-28 2006-11-28 Image processing method

Country Status (2)

Country Link
FI (1) FI20065754A7 (en)
WO (1) WO2008065249A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0802657A1 (en) 2008-12-23 2010-06-24 Scalado Ab Extraction of digital information
WO2022188021A1 (en) * 2021-03-09 2022-09-15 深圳市大疆创新科技有限公司 Data storage method, data reading method, apparatus, system, and storage medium
CN112989254B (en) * 2021-04-13 2023-03-07 郑州悉知信息科技股份有限公司 Picture processing method and device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665512B1 (en) * 1994-02-01 2000-05-10 Canon Kabushiki Kaisha An image processing method and apparatus
US6941019B1 (en) * 2000-05-10 2005-09-06 International Business Machines Corporation Reentry into compressed data
JP4130207B2 (en) * 2003-09-16 2008-08-06 富士通株式会社 Image processing display device and image processing display method
RU2368005C2 (en) * 2003-11-18 2009-09-20 Скаладо Аб Method for processing of digital image (versions)

Also Published As

Publication number Publication date
FI20065754A0 (en) 2006-11-28
FI20065754A7 (en) 2008-05-29
WO2008065249A1 (en) 2008-06-05

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: LIQUID AIR LAB GMBH

Free format text: LIQUID AIR LAB GMBH

MA Patent expired