JPS57199379A - Vector encoding device - Google Patents

Vector encoding device

Info

Publication number
JPS57199379A
JPS57199379A JP8402881A JP8402881A JPS57199379A JP S57199379 A JPS57199379 A JP S57199379A JP 8402881 A JP8402881 A JP 8402881A JP 8402881 A JP8402881 A JP 8402881A JP S57199379 A JPS57199379 A JP S57199379A
Authority
JP
Japan
Prior art keywords
vector
transducer
code
converted
absolute value
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP8402881A
Other languages
Japanese (ja)
Inventor
Akira Hirano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8402881A priority Critical patent/JPS57199379A/en
Priority to CA000404209A priority patent/CA1175557A/en
Priority to US06/383,841 priority patent/US4460923A/en
Publication of JPS57199379A publication Critical patent/JPS57199379A/en
Pending legal-status Critical Current

Links

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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/567—Motion estimation based on rate distortion criteria
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To efficiently encode a two-dimensional signal displayed by a vector, by giving a code having code length corresponding to magnitude of the vector, to the vector converted to a prescribed vector. CONSTITUTION:An input vector is inputted to a vector transducer 102 and 103, is converted to a differential signal against a vector value inputted in the past, and is provided to a transducer 3. In the transducer 3, a code of short code length and a code of long code length are provided to a vector whose absolute value is small, and a vector whose absolute value is large, respectively, and are provided to a series/parallel transducer 6. A variable length code output converted in parallel in the transducer 6 is written in a buffer memory 10, after a dummy bit has been removed by a timing pulse for removing the dummy bit provided from an NAND gate 13 in a register 8. In this way, a vector signal can be encoded efficiently.
JP8402881A 1981-06-01 1981-06-01 Vector encoding device Pending JPS57199379A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8402881A JPS57199379A (en) 1981-06-01 1981-06-01 Vector encoding device
CA000404209A CA1175557A (en) 1981-06-01 1982-06-01 Predictive coding system for television signals
US06/383,841 US4460923A (en) 1981-06-01 1982-06-01 Predictive coding system for television signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8402881A JPS57199379A (en) 1981-06-01 1981-06-01 Vector encoding device

Publications (1)

Publication Number Publication Date
JPS57199379A true JPS57199379A (en) 1982-12-07

Family

ID=13819084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8402881A Pending JPS57199379A (en) 1981-06-01 1981-06-01 Vector encoding device

Country Status (1)

Country Link
JP (1) JPS57199379A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61201583A (en) * 1985-03-04 1986-09-06 Toshiba Corp Dynamic vector detector
US4805017A (en) * 1986-03-04 1989-02-14 Kokusai Denshin Denwa Co., Ltd. System for coding and transmitting motion image signals
US4837618A (en) * 1986-11-10 1989-06-06 Kokusai Denshin Denwa Co., Ltd. Moving image signal coding system
EP0420653A2 (en) * 1989-09-29 1991-04-03 Victor Company Of Japan, Ltd. Motion picture data coding/decoding system having motion vector coding unit and decoding unit
JPH06237454A (en) * 1992-05-08 1994-08-23 Samsung Electron Co Ltd Operation estimating device provided with consideration for variable-length coding
US5650829A (en) * 1994-04-21 1997-07-22 Sanyo Electric Co., Ltd. Motion video coding systems with motion vector detection

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61201583A (en) * 1985-03-04 1986-09-06 Toshiba Corp Dynamic vector detector
US4805017A (en) * 1986-03-04 1989-02-14 Kokusai Denshin Denwa Co., Ltd. System for coding and transmitting motion image signals
US4837618A (en) * 1986-11-10 1989-06-06 Kokusai Denshin Denwa Co., Ltd. Moving image signal coding system
EP0420653A2 (en) * 1989-09-29 1991-04-03 Victor Company Of Japan, Ltd. Motion picture data coding/decoding system having motion vector coding unit and decoding unit
US5105271A (en) * 1989-09-29 1992-04-14 Victor Company Of Japan, Ltd. Motion picture data coding/decoding system having motion vector coding unit and decoding unit
JPH06237454A (en) * 1992-05-08 1994-08-23 Samsung Electron Co Ltd Operation estimating device provided with consideration for variable-length coding
US5650829A (en) * 1994-04-21 1997-07-22 Sanyo Electric Co., Ltd. Motion video coding systems with motion vector detection
US5808700A (en) * 1994-04-21 1998-09-15 Sanyo Electric Co., Ltd. Motion video coding systems with motion vector detection

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