WO2008102455A1 - Dynamic image coding device and dynamic image filtering device - Google Patents

Dynamic image coding device and dynamic image filtering device Download PDF

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Publication number
WO2008102455A1
WO2008102455A1 PCT/JP2007/053429 JP2007053429W WO2008102455A1 WO 2008102455 A1 WO2008102455 A1 WO 2008102455A1 JP 2007053429 W JP2007053429 W JP 2007053429W WO 2008102455 A1 WO2008102455 A1 WO 2008102455A1
Authority
WO
WIPO (PCT)
Prior art keywords
dynamic image
code amount
generated code
image coding
coding device
Prior art date
Application number
PCT/JP2007/053429
Other languages
French (fr)
Japanese (ja)
Inventor
Hyuk Jae Jang
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/053429 priority Critical patent/WO2008102455A1/en
Publication of WO2008102455A1 publication Critical patent/WO2008102455A1/en

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Classifications

    • 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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Picture Signal Circuits (AREA)

Abstract

This invention discloses a dynamic image coding device provided with a filter characteristic control unit (17) that acquires coded information on a generated code amount or the like obtained from processing in a coding unit (16) and that changes a frequency characteristic of a spatial filter in accordance with this coded information. The filter characteristic control unit (17) changes a cutoff frequency of the spatial filter (15) to make the cutoff frequency high in the case where the generated code amount is small or to make it low in the case where the generated code amount is large.
PCT/JP2007/053429 2007-02-23 2007-02-23 Dynamic image coding device and dynamic image filtering device WO2008102455A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/053429 WO2008102455A1 (en) 2007-02-23 2007-02-23 Dynamic image coding device and dynamic image filtering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/053429 WO2008102455A1 (en) 2007-02-23 2007-02-23 Dynamic image coding device and dynamic image filtering device

Publications (1)

Publication Number Publication Date
WO2008102455A1 true WO2008102455A1 (en) 2008-08-28

Family

ID=39709741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/053429 WO2008102455A1 (en) 2007-02-23 2007-02-23 Dynamic image coding device and dynamic image filtering device

Country Status (1)

Country Link
WO (1) WO2008102455A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03261289A (en) * 1990-03-12 1991-11-21 Kokusai Denshin Denwa Co Ltd <Kdd> Adaptive coding control system for moving picture signal
JPH03270378A (en) * 1990-03-19 1991-12-02 Victor Co Of Japan Ltd Data compressing device
JPH05308251A (en) * 1992-04-30 1993-11-19 Yamaha Corp Finite impulse response filter device
JPH07107462A (en) * 1993-09-29 1995-04-21 Oki Electric Ind Co Ltd Moving picture encoding method
JPH1065494A (en) * 1996-08-21 1998-03-06 Yamaha Corp Filter coefficient setting method, filter coefficient setting device, sampling frequency conversion method and sampling frequency converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03261289A (en) * 1990-03-12 1991-11-21 Kokusai Denshin Denwa Co Ltd <Kdd> Adaptive coding control system for moving picture signal
JPH03270378A (en) * 1990-03-19 1991-12-02 Victor Co Of Japan Ltd Data compressing device
JPH05308251A (en) * 1992-04-30 1993-11-19 Yamaha Corp Finite impulse response filter device
JPH07107462A (en) * 1993-09-29 1995-04-21 Oki Electric Ind Co Ltd Moving picture encoding method
JPH1065494A (en) * 1996-08-21 1998-03-06 Yamaha Corp Filter coefficient setting method, filter coefficient setting device, sampling frequency conversion method and sampling frequency converter

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