Decoding method and system for providing digital television rece

Details Decoding method and system for providing digital television rece Decoding method and system for providing digital television rece

1993-10-07

1994-12-06

Kostak, Victor R.

Television

Basic receiver with additional function

For display of additional information

348402, H04N 713, H04N 5262

Patent

active

053715497

ABSTRACT:
Disclosed herein is a novel method and system for providing digitized television receivers with a multipicture display capability by zero masking high frequency transform coefficients. The system comprises means for decoding a signal for each of equal-sized subpictures by setting at zero those transform coefficients which lie outside a subblock of transform coefficients including a d.c. transform coefficient formed from a block of transform coefficients. Interpolation of pixel data is performed by applying appropriate weight factors on neighboring pixels based on the spatial relationship between a head of a reduced motion vector and its neighboring pixels.

REFERENCES:
patent: 5157743 (1992-10-01), Maeda et al.

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