JPS5713858A - Adaptive quantization device - Google Patents

Adaptive quantization device

Info

Publication number
JPS5713858A
JPS5713858A JP8827680A JP8827680A JPS5713858A JP S5713858 A JPS5713858 A JP S5713858A JP 8827680 A JP8827680 A JP 8827680A JP 8827680 A JP8827680 A JP 8827680A JP S5713858 A JPS5713858 A JP S5713858A
Authority
JP
Japan
Prior art keywords
circuit
quantizing
reference level
picture signals
adaptive quantization
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.)
Granted
Application number
JP8827680A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0117311B2 (cs
Inventor
Hironori Takashima
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 JP8827680A priority Critical patent/JPS5713858A/ja
Publication of JPS5713858A publication Critical patent/JPS5713858A/ja
Publication of JPH0117311B2 publication Critical patent/JPH0117311B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP8827680A 1980-06-28 1980-06-28 Adaptive quantization device Granted JPS5713858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8827680A JPS5713858A (en) 1980-06-28 1980-06-28 Adaptive quantization device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8827680A JPS5713858A (en) 1980-06-28 1980-06-28 Adaptive quantization device

Publications (2)

Publication Number Publication Date
JPS5713858A true JPS5713858A (en) 1982-01-23
JPH0117311B2 JPH0117311B2 (cs) 1989-03-29

Family

ID=13938375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8827680A Granted JPS5713858A (en) 1980-06-28 1980-06-28 Adaptive quantization device

Country Status (1)

Country Link
JP (1) JPS5713858A (cs)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175623A (ja) * 1984-06-28 1986-04-18 レギナルド　アルフレツド　キング 符号化する方法
US4719259A (en) * 1985-04-29 1988-01-12 Eastman Kodak Company Process for producing ethylene/vinyl alcohol copolymers
JPH03147480A (ja) * 1989-11-02 1991-06-24 Canon Inc 画像処理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556762A (en) * 1978-10-23 1980-04-25 Ricoh Co Ltd Picture element signal conversion method for digital reproducer
JPS5570171A (en) * 1978-11-21 1980-05-27 Ricoh Co Ltd Picture noise eliminating method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556762A (en) * 1978-10-23 1980-04-25 Ricoh Co Ltd Picture element signal conversion method for digital reproducer
JPS5570171A (en) * 1978-11-21 1980-05-27 Ricoh Co Ltd Picture noise eliminating method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175623A (ja) * 1984-06-28 1986-04-18 レギナルド　アルフレツド　キング 符号化する方法
US4719259A (en) * 1985-04-29 1988-01-12 Eastman Kodak Company Process for producing ethylene/vinyl alcohol copolymers
JPH03147480A (ja) * 1989-11-02 1991-06-24 Canon Inc 画像処理装置

Also Published As

Publication number Publication date
JPH0117311B2 (cs) 1989-03-29

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