GB1341179A - Coding video signals - Google Patents

Coding video signals

Info

Publication number
GB1341179A
GB1341179A GB2455872A GB2455872A GB1341179A GB 1341179 A GB1341179 A GB 1341179A GB 2455872 A GB2455872 A GB 2455872A GB 2455872 A GB2455872 A GB 2455872A GB 1341179 A GB1341179 A GB 1341179A
Authority
GB
United Kingdom
Prior art keywords
dpcm
delta
bits
coding
buffer
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.)
Expired
Application number
GB2455872A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1341179A publication Critical patent/GB1341179A/en
Expired 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
    • H04N19/10—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
    • H04N19/50—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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB2455872A 1971-06-03 1972-05-25 Coding video signals Expired GB1341179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH811371A CH522330A (de) 1971-06-03 1971-06-03 Verfahren und Einrichtung zur Codierung und Decodierung von Videosignalen

Publications (1)

Publication Number Publication Date
GB1341179A true GB1341179A (en) 1973-12-19

Family

ID=4335371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2455872A Expired GB1341179A (en) 1971-06-03 1972-05-25 Coding video signals

Country Status (7)

Country Link
US (1) US3825832A (enExample)
CA (1) CA996276A (enExample)
CH (1) CH522330A (enExample)
DE (1) DE2225652C3 (enExample)
FR (1) FR2140245B1 (enExample)
GB (1) GB1341179A (enExample)
IT (1) IT955538B (enExample)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587109B2 (ja) * 1974-09-09 1983-02-08 ケイディディ株式会社 フアクシミリシンゴウ ノ ジヨウホウヘンカガソアドレスフゴウカホウシキ
US4017849A (en) * 1975-08-28 1977-04-12 Bell Telephone Laboratories, Incorporated Apparatus for analog to digital conversion
US3991269A (en) * 1975-09-18 1976-11-09 Bell Telephone Laboratories, Incorporated Digital coding without additional bits to provide sign information
US4179710A (en) * 1976-02-23 1979-12-18 Nippon Electric Co., Ltd. Predictive encoder with a non-linear quantizing characteristic
JPS6016777B2 (ja) * 1976-12-25 1985-04-27 株式会社東芝 信号伝送方式
US4314105A (en) * 1977-01-21 1982-02-02 Mozer Forrest Shrago Delta modulation method and system for signal compression
US4150397A (en) * 1977-09-13 1979-04-17 Eli S. Jacobs Repetition reduced digital data record and playback system
FR2460580A1 (fr) * 1979-06-29 1981-01-23 France Etat Dispositif pour le suivi et l'estimation recursive de l'etat local des contours d'images et application a la prediction adaptative en codage differentiel de signaux de television
US4339823A (en) * 1980-08-15 1982-07-13 Motorola, Inc. Phase corrected clock signal recovery circuit
US4369463A (en) * 1981-06-04 1983-01-18 International Business Machines Corporation Gray scale image data compression with code words a function of image history
FR2532138B1 (fr) * 1982-08-20 1986-10-10 Thomson Csf Procede de compression de debit de donnees successivement transmises entre un emetteur et un recepteur de television et systeme mettant en oeuvre le procede
FR2546700B1 (fr) * 1983-05-27 1986-12-05 Thomson Csf Procede et dispositif de codage a faible cout en debit de donnees pour systemes de television a rafraichissement conditionnel
US4661862A (en) * 1984-04-27 1987-04-28 Rca Corporation Differential PCM video transmission system employing horizontally offset five pixel groups and delta signals having plural non-linear encoding functions
DE3574655D1 (de) * 1984-05-15 1990-01-11 Bbc Brown Boveri & Cie Analog-digital-wandler.
JPS61283967A (ja) * 1985-06-10 1986-12-13 Toshiba Corp 画像記録再生装置
BE904913A (nl) * 1986-06-13 1986-12-15 Bell Telephone Mfg Data overdrachtsysteem.
US5172237A (en) * 1989-05-17 1992-12-15 Ricoh Corporation High quality color image compression system
US6181822B1 (en) * 1993-05-12 2001-01-30 The Duck Corporation Data compression apparatus and method
US6314140B1 (en) * 1995-12-28 2001-11-06 Lucent Technologies Inc. Dynamic video focus control
US20080205521A1 (en) * 2005-04-27 2008-08-28 Koninklijke Philips Electronics, N.V. Dpcm Coding Method of Video Signals
US8325796B2 (en) * 2008-09-11 2012-12-04 Google Inc. System and method for video coding using adaptive segmentation
US8311111B2 (en) 2008-09-11 2012-11-13 Google Inc. System and method for decoding using parallel processing
US8326075B2 (en) * 2008-09-11 2012-12-04 Google Inc. System and method for video encoding using adaptive loop filter
US9031241B2 (en) * 2009-02-05 2015-05-12 D.E. Shaw Research, Llc Link and physical coding sub-layer protocols
US8780996B2 (en) 2011-04-07 2014-07-15 Google, Inc. System and method for encoding and decoding video data
US8781004B1 (en) 2011-04-07 2014-07-15 Google Inc. System and method for encoding video using variable loop filter
US8780971B1 (en) 2011-04-07 2014-07-15 Google, Inc. System and method of encoding using selectable loop filters
US9154799B2 (en) 2011-04-07 2015-10-06 Google Inc. Encoding and decoding motion via image segmentation
US8885706B2 (en) 2011-09-16 2014-11-11 Google Inc. Apparatus and methodology for a video codec system with noise reduction capability
US9100657B1 (en) 2011-12-07 2015-08-04 Google Inc. Encoding time management in parallel real-time video encoding
US9262670B2 (en) 2012-02-10 2016-02-16 Google Inc. Adaptive region of interest
US9131073B1 (en) 2012-03-02 2015-09-08 Google Inc. Motion estimation aided noise reduction
US9344729B1 (en) 2012-07-11 2016-05-17 Google Inc. Selective prediction signal filtering
US11425395B2 (en) 2013-08-20 2022-08-23 Google Llc Encoding and decoding using tiling
US9392272B1 (en) 2014-06-02 2016-07-12 Google Inc. Video coding using adaptive source variance based partitioning
US9578324B1 (en) 2014-06-27 2017-02-21 Google Inc. Video coding using statistical-based spatially differentiated partitioning
US10102613B2 (en) 2014-09-25 2018-10-16 Google Llc Frequency-domain denoising
US9794574B2 (en) 2016-01-11 2017-10-17 Google Inc. Adaptive tile data size coding for video and image compression
US10542258B2 (en) 2016-01-25 2020-01-21 Google Llc Tile copying for video compression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071727A (en) * 1961-05-08 1963-01-01 Bell Telephone Labor Inc Bandwidth reduction system
US3422227A (en) * 1965-09-30 1969-01-14 Bell Telephone Labor Inc Dual code differential encoding scheme for video signals
US3403226A (en) * 1965-09-30 1968-09-24 Bell Telephone Labor Inc Reduced bandwidth dual mode encoding of video signals
US3439753A (en) * 1966-04-19 1969-04-22 Bell Telephone Labor Inc Reduced bandwidth pulse modulation scheme using dual mode encoding in selected sub-block sampling periods
JPS5114846B1 (enExample) * 1968-08-08 1976-05-12
US3688029A (en) * 1968-09-23 1972-08-29 Otto E Bartoe Jr Cableless acoustically linked underwater television system

Also Published As

Publication number Publication date
FR2140245A1 (enExample) 1973-01-12
US3825832A (en) 1974-07-23
FR2140245B1 (enExample) 1976-09-10
DE2225652C3 (de) 1981-07-02
CH522330A (de) 1972-06-15
DE2225652B2 (de) 1980-09-04
IT955538B (it) 1973-09-29
CA996276A (en) 1976-08-31
DE2225652A1 (de) 1972-12-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee