Image signal interpolating apparatus

Details Image signal interpolating apparatus Image signal interpolating apparatus

1998-11-25

2000-01-18

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348420, 348421, 348445, 382 41, 382 45, 382 46, 358455, 358456, H04N 718

Patent

active

060161647

ABSTRACT:
An image signal interpolating apparatus with a simple structure which generates an interpolation picture element value near the real value without aliasing noise is realized. Predictive coefficients D8 which correspond to the class are read-out, and interpolation data D2 are obtained based on the predictive coefficients D8, thereby, interpolation data D2 near the real value are obtained without aliasing noise. In addition, the flatness near an interpolation-addressed picture element is detected and picture elements used for classification are selected depending on the resultant detected flatness D4, thereby, the interpolation-addressed picture element is classified correctly with the least number of class. Thus the structure can be simplified.

REFERENCES:
patent: 4858013 (1989-08-01), Matsuda
patent: 5032910 (1991-07-01), Cok
patent: 5131057 (1992-07-01), Walowit et al.
patent: 5184218 (1993-02-01), Gerdes
patent: 5363213 (1994-11-01), Coward et al.
patent: 5517245 (1996-05-01), Kondo et al.

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