Electrical computers and digital processing systems: multicomput – Computer-to-computer data modifying – Compressing/decompressing
Patent
1996-12-13
1999-11-23
Dinh, Dung C.
Electrical computers and digital processing systems: multicomput
Computer-to-computer data modifying
Compressing/decompressing
709200, 709247, 382240, 382248, 382276, 382281, 348399, H04N 979
Patent
active
059918160
ABSTRACT:
A method of transferring digital image data over a communication link transforms and orders the data so that, as data is received by a receiving station, a low detail version of the image is immediately generated with later transmissions of data providing progressively greater detail in this image. User instructions are accepted, limiting the ultimate resolution of the image or suspending enhancement of the image except in certain user defined regions. When a low detail image is requested followed by a request for a high detailed version of the same image, the originally transmitted data of the low resolution image is not discarded or retransmitted but used with later data to improve the originally transmitted image. Only a single copy of the transformed image need be retained by the transmitting device in order to satisfy requests for different amounts of image detail.
REFERENCES:
patent: 4742558 (1988-05-01), Ishibashi
patent: 5737599 (1998-04-01), Rowe et al.
patent: 5754702 (1998-05-01), Simpson
High-Performance Compression of Astronomical Images, by Richard L. White, Joint Institute for Laboratory Astrophysics, University of Colorado 1993.
Percival Jeffrey W.
White Richard L.
Dinh Dung C.
Le Hieu C.
Wisconsin Alumni Research Foundation
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