Frame still pictures with no double images

Details Frame still pictures with no double images Frame still pictures with no double images

1990-01-26

1991-08-27

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358167, 358166, 360 331, H04N 964, H04N 5213

Patent

active

050438026

ABSTRACT:
An image pickup apparatus is provided with a first adder which outputs a sum signal by adding a first luminance signal produced from the signals of odd-numbered lines of a solid-state image sensor and a second luminance signal produced from the signals of even-numbered lines of the solid-state image sensor, a first subtracter which outputs a difference signal by subtracting the first luminance signal from the second luinance signal, a noise reducer which reduces noise in the difference signal, a second adder which outputs a third luminance signal by adding the difference signal with its noise reduced to the sum signal, and a second subtracter which outputs a fourth luminance signal by subtracting the difference signal with its noise reduced from the sum signal. A frame still picture is formed from the third luminance signal and fourth luminance signal.

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patent: 4864424 (1989-09-01), Ochi et al.
patent: 4887252 (1989-12-01), Miyakawa et al.

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