Apparatus and method for reducing noise when changing the aspect

Details Apparatus and method for reducing noise when changing the aspect Apparatus and method for reducing noise when changing the aspect

1996-10-24

1998-10-20

Kostak, Victor R.

Television

Format conversion

Conversion between standards with different aspect ratios

348607, H04N 701

Patent

active

058254285

ABSTRACT:
An video signal processing apparatus compresses video signals in the horizontal time axis direction and converts the compressed signal into a double-density signal having twice horizontal scanning frequency. Frequency components are removed from an input digital video signal. Here, the frequency components are twice higher than the chrominance subcarrier frequency of an input digital video signal. The digital video signal from which the frequency components are removed is compressed in a horizontal time axis direction. The horizontal scanning frequency of the compressed video signal is then converted into double.

REFERENCES:
patent: 5539470 (1996-07-01), Fukuoka

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