Video camera with electronic picture stabilizer

Details Video camera with electronic picture stabilizer Video camera with electronic picture stabilizer

1994-04-07

1994-12-06

Razavi, Michael T.

Television

Camera, system and detail

Camera connected to computer

348208, 348155, 348352, 348413, 348414, 348415, 348416, 348417, 348418, 348699, 348222, H04N 530, H04N 5228, H04N 718

Patent

active

053715390

ABSTRACT:
A video camera includes a solid-state image sensing device, and an electric signal from the image sensing device is converted by a camera circuit into a video signal which is further converted into a digital video signal by an A/D converter. The digital video signal is stored in a field memory sequentially field by field under control of a memory control circuit. A motion detecting circuit which receives the digital video signal calculates correlative values for each of a plurality of blocks constituting a whole screen according to a representative point matching method. A microcomputer calculates motion vectors of respective blocks on the basis of correlative value data from the motion detecting circuit and an average motion vector thereof, and calculates "increase", "passing degree" and "variation". The microcomputer further evaluates a reliability of each of the blocks according to a fuzzy inference by utilizing the increase, passing degree and variation as parameters. The memory control circuit determines correction amount for a picture stabilization on the basis of the reliability and the average motion vector.

REFERENCES:
patent: 5027203 (1991-06-01), Samad et al.
patent: 5036393 (1991-07-01), Samad et al.
patent: 5047850 (1991-09-01), Ishii et al.
patent: 5126841 (1992-06-01), Tanaka et al.
patent: 5184216 (1993-02-01), Kobayashi

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