Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-03-16
1990-02-20
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358138, H04N 713
Patent
active
049031244
ABSTRACT:
Disclosed is an image information signal transmission apparatus wherein an image information signal in which one frame is constituted by a plurality of sample data is input, the input image information signal is divided into a plurality of blocks each consisting of a predetermined number of sample data, at least two types of reference value data associated with a dynamic range of sample data of each block is formed in units of blocks, the sample data of each block is coded by using the reference value data to form a plurality of first coded data in units of blocks, the plurality of first coded data formed in units of blocks are vector-quantized to form second coded data in units of blocks, and transmission data is formed by using as a transmission unit the reference data formed in units of blocks and the second coded data formed in units of blocks. The image information signal can be transmitted in a small information volume without degrading the image information signal.
REFERENCES:
patent: 4558350 (1985-12-01), Murakami
patent: 4805017 (1989-02-01), Kaneko
IEE Proceedings, vol. 133, Pt. F, No. 5, Aug. 1986, pp. 428-487, Goldberg et al., "Image Sequence Coding by Three-Dimensional Block Vector Quantisation".
Fujii Akio
Hoshi Nobuhiro
Ishii Yoshiki
Ishikawa Hisashi
Yagisawa Toshihiro
Britton Howard W.
Canon Kabushiki Kaisha
LandOfFree
Image information signal transmission apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image information signal transmission apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image information signal transmission apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1620330