FR2359559A1 - Dispositif de traitement d'image de television - Google Patents

Dispositif de traitement d'image de television

Info

Publication number
FR2359559A1
FR2359559A1 FR7622625A FR7622625A FR2359559A1 FR 2359559 A1 FR2359559 A1 FR 2359559A1 FR 7622625 A FR7622625 A FR 7622625A FR 7622625 A FR7622625 A FR 7622625A FR 2359559 A1 FR2359559 A1 FR 2359559A1
Authority
FR
France
Prior art keywords
interpolation
corrects
picture elements
drop out
lost picture
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
FR7622625A
Other languages
English (en)
Other versions
FR2359559B1 (fr
Inventor
Jean Fraleux
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7622625A priority Critical patent/FR2359559A1/fr
Publication of FR2359559A1 publication Critical patent/FR2359559A1/fr
Application granted granted Critical
Publication of FR2359559B1 publication Critical patent/FR2359559B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)

Abstract

Dispositif de traitement d'image de télévision destiné à éliminer notamment les bruits constitués par des points blancs ou noirs isolés. Il est constitué d'un certain nombre de lignes à retard associées à des logiques de décision, permettant d'effectuer la comparaison de chaque point de l'image aux quatre ou huit points qui l'entourent sur la même ligne et sur les lignes précédente et suivante. Le niveau d'un point considéré ne peut être supérieur au niveau le plus élevé, ou inférieur au niveau le moins elevé, des points auxquels il est comparé Application aux senseurs et chaînes de traitement d'image de télévision.
FR7622625A 1976-07-23 1976-07-23 Dispositif de traitement d'image de television Granted FR2359559A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7622625A FR2359559A1 (fr) 1976-07-23 1976-07-23 Dispositif de traitement d'image de television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7622625A FR2359559A1 (fr) 1976-07-23 1976-07-23 Dispositif de traitement d'image de television

Publications (2)

Publication Number Publication Date
FR2359559A1 true FR2359559A1 (fr) 1978-02-17
FR2359559B1 FR2359559B1 (fr) 1978-12-22

Family

ID=9176098

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622625A Granted FR2359559A1 (fr) 1976-07-23 1976-07-23 Dispositif de traitement d'image de television

Country Status (1)

Country Link
FR (1) FR2359559A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048569A2 (fr) * 1980-09-18 1982-03-31 Sony Corporation Dissimulation d'erreurs dans des signaux de télévision numériques
FR2509547A1 (fr) * 1981-07-13 1983-01-14 Sony Corp Circuit de filtre
EP0595663A2 (fr) * 1992-10-30 1994-05-04 Samsung Electronics Co., Ltd. Réduction de bruit de signaux vidéo
EP0706739A4 (fr) * 1992-10-22 1996-01-15 Accom Inc Filtration mediane et recursive tridimensionnelle pour amelioration d'images video

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841645A (en) * 1955-03-14 1958-07-01 Sylvania Electric Prod Television receiver
US3009016A (en) * 1959-10-06 1961-11-14 Bell Telephone Labor Inc Noise suppressing video circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841645A (en) * 1955-03-14 1958-07-01 Sylvania Electric Prod Television receiver
US3009016A (en) * 1959-10-06 1961-11-14 Bell Telephone Labor Inc Noise suppressing video circuit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048569A2 (fr) * 1980-09-18 1982-03-31 Sony Corporation Dissimulation d'erreurs dans des signaux de télévision numériques
EP0048569A3 (en) * 1980-09-18 1982-08-11 Sony Corporation Error concealment in digital television signals
FR2509547A1 (fr) * 1981-07-13 1983-01-14 Sony Corp Circuit de filtre
DE3226038A1 (de) * 1981-07-13 1983-01-20 Sony Corp., Tokyo Filterschaltungen
DE3226038C3 (de) * 1981-07-13 1998-01-29 Sony Corp Filterschaltung
EP0706739A4 (fr) * 1992-10-22 1996-01-15 Accom Inc Filtration mediane et recursive tridimensionnelle pour amelioration d'images video
EP0706739A1 (fr) * 1992-10-22 1996-04-17 Accom, Inc. Filtration mediane et recursive tridimensionnelle pour amelioration d'images video
EP0595663A2 (fr) * 1992-10-30 1994-05-04 Samsung Electronics Co., Ltd. Réduction de bruit de signaux vidéo
JPH06217171A (ja) * 1992-10-30 1994-08-05 Samsung Electron Co Ltd 映像信号のノイズ除去回路
EP0595663A3 (fr) * 1992-10-30 1994-10-19 Samsung Electronics Co Ltd Réduction de bruit de signaux vidéo.
JP2859526B2 (ja) * 1992-10-30 1999-02-17 三星電子株式会社 映像信号のノイズ除去回路

Also Published As

Publication number Publication date
FR2359559B1 (fr) 1978-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse