Image sensing apparatus having camera-shake detection function
First Claim
1. An image sensing apparatus having camera-shake detection function comprising:
- image sensing means for receiving light from an object and converting the same into a video signal,binary coding means for dividing an image sensed picture into a plurality of blocks and binary coding said video signal at a plurality of sampling points in each block by comparing the same with a first reference value determined for each block,distribution data calculating means for calculating data representing the distribution position of the object in the vertical direction and the horizontal direction in each block according to said binary coded data for each block,motion vector specifying means for specifying a motion vector of the object for each block according to said data representing the distribution position of the object, andmotion vector selecting means for selecting a motion vector of the object of an entire image sensed picture by logic process based on said specified motion vectors for respective blocks.
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Accused Products
Abstract
A video camera having camera-shake detection function divides an image sensed picture into a plurality of blocks and binary codes the luminance signal in each pixel in each block. The presence of a binary coded data of "1" is detected for each horizontal line and vertical line in each block, whereby the presence of at least one causes data "1" to be stored in the bit position in the memory corresponding to the line. Accordingly, data representing the distribution of an object in the vertical direction and the horizontal direction are obtained for each block. By calculating the data correlation between consecutive frames, a motion vector of the object for each block is specified, whereby a motion vector representing the entire picture is selected by subjecting the motion vectors of all blocks is selected by subjecting the motion vectors of all blocks to majority decision logic process. In accordance with this selected motion vector, the movement of the object caused by the camera-shake is corrected appropriately.
25 Citations
6 Claims
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1. An image sensing apparatus having camera-shake detection function comprising:
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image sensing means for receiving light from an object and converting the same into a video signal, binary coding means for dividing an image sensed picture into a plurality of blocks and binary coding said video signal at a plurality of sampling points in each block by comparing the same with a first reference value determined for each block, distribution data calculating means for calculating data representing the distribution position of the object in the vertical direction and the horizontal direction in each block according to said binary coded data for each block, motion vector specifying means for specifying a motion vector of the object for each block according to said data representing the distribution position of the object, and motion vector selecting means for selecting a motion vector of the object of an entire image sensed picture by logic process based on said specified motion vectors for respective blocks. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification