Compressed quantized image-data transmission technique suitable for use in teleconferencing
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United States of America Patent
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May 5, 1987
Grant Date -
N/A
app pub date -
Jun 20, 1986
filing date -
Jun 20, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A technique for transmitting compressed quantized image-data from a transmitter to a receiver over a limited bandwidth communication channel employs temporal differential pulse code modulation incorporating pyramid image processing spectrum analyzers and synthesizers. This technique permits the selective elimination by data-compression of only those portions of the original image information which contribute least to the perception of image quality by a viewer of a synthesized display image at the receiver.
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