Method and apparatus for coding a digitized original picture...

Details Method and apparatus for coding a digitized original picture... Method and apparatus for coding a digitized original picture...

2006-03-14

2006-03-14

Mancuso, Joseph (Department: 2621)

Image analysis

Image compression or coding

Predictive coding

Reexamination Certificate

active

07013048

ABSTRACT:
The discrete cosine transform of the prediction error is not necessarily calculated, rather the DCT of the original picture to be transmitted and the DCT of the temporally preceding reconstructed picture are calculated separately from one another. By comparing the amplitudes of the coefficients from the original signal with respect to the difference between the coefficients from the original signal and the reconstructed picture, a decision is made for each coefficient as to whether the coefficient of the original signal or the difference between the coefficients is transmitted.

REFERENCES:
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patent: 0 618 731 (1994-10-01), None
J. De Lameillieure, R. Schäfer, MPEG-2-Bildcodierung für das digitale Fernsehen (MPEG-2 picture coding for digital television), Fernseh- und Kino-Technik, vol. 48, No. 3/1994, pp. 99-107, 1994.
Guichard et al., “Intra- and Inter Frame Transform Coding for Moving Pictures Transmission”, IEEE, 1986, pp. 381-384.
Li et al., “Image Sequence Coding at Very Low Bitrates: A Review”, 8395 Transactions on Image Processing, 3 (1994) Sep., No. 5, New York, US, pp. 509-609.

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