Television – Camera – system and detail – Camera image stabilization
Patent
1993-12-21
1996-03-26
Mancuso, Joseph
Television
Camera, system and detail
Camera image stabilization
348413, 348416, H04N 5228, H04N 701
Patent
active
055024831
ABSTRACT:
The present invention relates to a video camera apparatus which can automatically correct an image vibration, such as a handling or the like electronically. A control circuit changes an interpolation coefficient .alpha. of an interpolation processing circuit in response to a detected output from a vibration detecting apparatus or an output from a motion vector calculating apparatus that detects a vibration of a video signal. Also, the control circuit controls a scanning pulse generating circuit that derives a scanning pulse for scanning the imager. The scanning pulse generating circuit changes a combination of two scanning lines that are to be interpolated by the interpolation processing circuit using the interpolation coefficient .alpha. by changing the scanning state of the imager when 0.ltoreq..alpha.<X or (1-X)<.alpha..ltoreq.1 and X.ltoreq..alpha..ltoreq.(1-X) if X is a limited value of the interpolation coefficient .alpha. and the limited value X is a value smaller than 1/2. Thus, a resolution of a reproduced picture based on the video signal thus obtained by the above interpolation processing can be prevented from being deteriorated.
REFERENCES:
patent: 4574311 (1986-03-01), Resnikoff et al.
patent: 5070403 (1991-12-01), Wilkinson
"VHS Camcorder With Electronic Image Stabilizer" by Oshima et al, IEEE Transactions On Consumer Electronics, vol. 35, No. 4, pp. 749-757, Nov., 1989.
Imaide Takuya
Kinugasa Toshiro
Komatsu Hiroyuki
Takase Satoshi
Christensen Andrew B.
Hitachi , Ltd.
Mancuso Joseph
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