Digital video compression utilizing mixed vector and scalar outp

Image analysis – Image compression or coding – Transform coding

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382251, G06K 900

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active

057402833

ABSTRACT:
Interframe compression of moving image data is achieved by a combination of vector coding and scalar coding of transform coefficient differences formed by the subtraction of previous image transform coefficients from corresponding present image transform coefficients along a Zig-Zag path in the arrays of coefficients. More efficient scalar codes are used instead of vector codes for transmission of coefficient data where the previous image coefficients are non-zero along the path. Vector codes are used where a non-zero value in the previous image transform array has not been established but a non-zero value coefficient occurs in the present image transform array. Vector coding efficiency is improved by modified run length coding.

REFERENCES:
patent: 3679821 (1972-07-01), Schroeder
patent: 4463386 (1984-07-01), Goddard et al.
patent: 4751742 (1988-06-01), Meeker
patent: 4752897 (1988-06-01), Zoeller et al.
patent: 4888795 (1989-12-01), Ando et al.
patent: 5157488 (1992-10-01), Rennebaker
Recommendation, H.261--Video codec for audiovisual services at p x 64 kbit/s, CCITT Study Group XV, Geneva Meeting, Jul. 16-27, 1990, pp. 79-108, Report R37, Recomendations of the H-Series, Period 1989-1992, Com XV-R 37-E, Aug. 1990.

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