Television – Camera – system and detail – Camera image stabilization
Patent
1996-03-06
1999-06-01
Garber, Wendy
Television
Camera, system and detail
Camera image stabilization
348352, H04N 5228
Patent
active
059092424
ABSTRACT:
A video camera (10) includes a microcomputer (26) which determines whether each of detection areas defined within an image field (44) is valid or invalid. If there is a valid detection area, luminance addition data and color addition data are evaluated by an addition data generating circuit (46) for each of addition regions of 64, for example, which are defined by dividing the image field (44). Differences of the addition data between a given addition region and a left adjacent addition region in a horizontal direction and an upper adjacent addition region in a vertical direction are evaluated, and the differences are compared with predetermined values. If comparisons satisfy predetermined conditions, a count value is incremented. On the basis of a total count value of the horizontal direction and a total count value of the vertical direction, it is determined whether or not an object is an object having repeated pattern, and a whole motion vector V.sub.n is evaluated by methods being different from each other according to a determination result. Then, an integration vector S.sub.n is evaluated according to a status of the video camera, whereby a blurring of an image due to an unintentional motion of the video camera can be corrected.
REFERENCES:
patent: 4864398 (1989-09-01), Avis et al.
patent: 5099323 (1992-03-01), Morimura et al.
patent: 5170255 (1992-12-01), Yamada et al.
patent: 5237405 (1993-08-01), Egosa et al.
Uomori, Kenya et al., Electronic Image Stabilization System for Video Cameras and VCRs. SMPTE Journal, Feb. 1992, pp. 66-75.
Uomori et al., Automatic Image Stabilization System by Full-Digital Signal Processing, IEEE Trans. on Consumer Electronics vol. 36, No. 3, Aug. 1990.
Park et al., An Adaptive Motion Decision System for Digital Image Stabilizer Based on Edge Pattern Matching, IEEE Trans. on Consumer Electronics, vol. 38, No. 3 Aug. 1992.
Kobayashi Akio
Toba Akira
Garber Wendy
Moe Aung S.
Sanyo Electric Co,. Ltd.
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