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Image Analysis

Image-information-signal-transmitting-system

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Image information signal transmitting system

Details

Inventors: Nakayama, Tadayoshi; Sato, Chikara; Nagasawa, Kenichi; Sasatani, Tomohiko; Takahashi, Koji; Kozuki, Susumu; Yoshimura, Katsuji;
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Boudreau; Leo H.
Assistant Examiner:
Attorney, Agent or Firm: Robin, Blecker, Daley & Driscoll

An image information signal transmitting system for transmitting an image information signals which continuously forms a temporally correlated group of image planes is arranged to divide each image plane portions of the image information signal into a plurality of blocks; and, in determining for every divided block included in each of the image planes the adoption of one of a plurality of information transmitting modes provided for different information transmitting density values, the information transmitting modes for the plurality of blocks of a presently transmitting image plane portion of the signal are determined at least according to the information transmitting modes which hae been used for the plurality of blocks of a previously transmitted image plane portion of the signal.

DETAILED DESCRIPTION It is a general object of this invention to provide an image information signal transmission system capable of solving the above-stated problems of the prior art.
It is a more specific object of this invention to provide an image information signal transmission system capable of performing efficient transmission by determining a transmission mode for an image plane portion of the image information signal to be next transmitted according to a transmission mode used for another image plane portion of the image information signal already transmitted.
Under this object, an image information signal transmitting system which is arranged according to this invention as an embodiment thereof to transmit an image information signal which continuously forms a group of image planes having temporal correlativity among them comprises: dividing means for dividing each image plane portion of the image information signal into a plurality of blocks; information transmitting mode determining means for determining, for every divided block included in each of the image planes, the adoption of one of a plurality of information transmitting modes provided for different information transmitting density values; and determining action control means for controlling the determining action of the information transmitting mode determining means to have one of the information transmitting modes determined for each of the plurality of blocks of a presently transmitting image plane portion of the signal determined at least according to the information transmitting modes which have already been determined by the information transmitting mode determining means for the plurality of blocks of the previous image plane.
It is another object of this invention to provide an image information signal transmitting system which is capable of performing a transmitting operation with improved efficiency by skipping a part of the image information signal by utilizing a part of an image plane portion of the image information signal previously transmitted

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