FR2452222A1 - Systeme et procede de traitement video numerique a reduction du nombre d'echantillons - Google Patents

Systeme et procede de traitement video numerique a reduction du nombre d'echantillons

Info

Publication number
FR2452222A1
FR2452222A1 FR8006323A FR8006323A FR2452222A1 FR 2452222 A1 FR2452222 A1 FR 2452222A1 FR 8006323 A FR8006323 A FR 8006323A FR 8006323 A FR8006323 A FR 8006323A FR 2452222 A1 FR2452222 A1 FR 2452222A1
Authority
FR
France
Prior art keywords
data
frequency components
samples
video processing
digital video
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
FR8006323A
Other languages
English (en)
Other versions
FR2452222B3 (fr
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.)
Micro Consultants Ltd
Original Assignee
Micro Consultants 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 Micro Consultants Ltd filed Critical Micro Consultants Ltd
Publication of FR2452222A1 publication Critical patent/FR2452222A1/fr
Application granted granted Critical
Publication of FR2452222B3 publication Critical patent/FR2452222B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4007—Interpolation-based scaling, e.g. bilinear interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/3872—Repositioning or masking
    • H04N1/3873—Repositioning or masking defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming
    • H04N1/3875—Repositioning or masking defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming combined with enlarging or reducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
    • H04N1/646—Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording

Abstract

SYSTEME DE TRAITEMENT VIDEO NUMERIQUE DESTINE A REDUIRE LE NOMBRE D'ECHANTILLONS DE DONNEES NUMERIQUES EN REDUISANT EFFECTIVEMENT LE TAUX DE DONNEES POUR PERMETTRE UN TRAITEMENT PLUS EFFICACE AU COURS D'UNE MANIPULATION ULTERIEURE. LE PROCESSEUR COMPREND UN SEPARATEUR 40, 41 POUR SEPARER LES DONNEES PROVENANT DE LIGNES VIDEO ADJACENTES DANS L'ESPACE EN LEURS COMPOSANTES DE HAUTE ET BASSE FREQUENCES ET DES ADDITIONNEURS 42 POUR ADDITIONNER LES UNES AUX AUTRES LES COMPOSANTES DE HAUTE FREQUENCE PROVENANT DE CHAQUE LIGNE ET ADDITIONNER CETTE DONNEE ADDITIONNEE A DES PARTIES SELECTIONNEES DES COMPOSANTES DE BASSE FREQUENCE POUR PRODUIRE UNE REDUCTION DE DONNEES SELON UN FACTEUR DE DEUX. IL EST POSSIBLE DE RECONSTITUER LES DONNEES APRES D'AUTRES MANIPULATIONS A L'AIDE DE TECHNIQUES SIMILAIRES. LE PROCESSEUR PEUT ETRE UTILISE PAR EXEMPLE DANS UN SYSTEME NUMERIQUE DE MISE EN MEMOIRE D'IMAGES.
FR8006323A 1979-03-22 1980-03-21 Systeme et procede de traitement video numerique a reduction du nombre d'echantillons Granted FR2452222A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7910113 1979-03-22
GB7938847 1979-11-09

Publications (2)

Publication Number Publication Date
FR2452222A1 true FR2452222A1 (fr) 1980-10-17
FR2452222B3 FR2452222B3 (fr) 1981-12-04

Family

ID=26270989

Family Applications (3)

Application Number Title Priority Date Filing Date
FR8006321A Granted FR2452154A1 (fr) 1979-03-22 1980-03-21 Systeme de mise en memoire d'images immobiles sous forme numerique
FR8006322A Granted FR2452155A1 (fr) 1979-03-22 1980-03-21 Systeme de mise en memoire numerique d'images immobiles a changement de dimensions d'image
FR8006323A Granted FR2452222A1 (fr) 1979-03-22 1980-03-21 Systeme et procede de traitement video numerique a reduction du nombre d'echantillons

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR8006321A Granted FR2452154A1 (fr) 1979-03-22 1980-03-21 Systeme de mise en memoire d'images immobiles sous forme numerique
FR8006322A Granted FR2452155A1 (fr) 1979-03-22 1980-03-21 Systeme de mise en memoire numerique d'images immobiles a changement de dimensions d'image

Country Status (4)

Country Link
US (2) US4302776A (fr)
DE (3) DE3010989A1 (fr)
FR (3) FR2452154A1 (fr)
GB (3) GB2046053B (fr)

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Also Published As

Publication number Publication date
GB2047042B (en) 1983-06-15
DE3010989A1 (de) 1980-10-02
GB2046053A (en) 1980-11-05
GB2046053B (en) 1983-06-15
FR2452222B3 (fr) 1981-12-04
DE3010990A1 (de) 1980-10-02
DE3010988A1 (de) 1980-11-20
US4302776A (en) 1981-11-24
FR2452155B3 (fr) 1981-12-04
US4286291A (en) 1981-08-25
GB2047042A (en) 1980-11-19
GB2047041B (en) 1983-06-15
GB2047041A (en) 1980-11-19
FR2452154A1 (fr) 1980-10-17
FR2452154B3 (fr) 1981-12-04
FR2452155A1 (fr) 1980-10-17

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