rg@msel.unh.edu (Roger Gonzalez) (03/28/91)
Could someone point me towards references on the state of the art in
compressing video sequences for squirting across low bandwidth links?
I'm hoping to work on 128x128x4 images at 1-2 per second. Since they are
underwater, the 4 bits/pixel should be ok. I have a feeling I'll end
up with some hybrid approach tuned up for the format rather than any
general techniques. Ideas?
Incidentally, when I say low bandwidth, I mean it. I've seen up to
25Kbps for vertical (<10 degrees slant) hydroacoustic transmission,
but this will be horizontal, shallow water transmission with lots of
multipath possibilities. The s-o-t-a in this area until recently was
80 baud! Its hopefully up to 1200-4800, if we ever get the acoustic
modems we ordered...
These are the references I've accumulated thus far. Any additions or comments?
MIT man-machine lab, 1980 operator adjustable frame rate, res. et
Assorted MAPS (micro-adaptive picture sequencing) articles (1977-1985)
LaBonte (SPIE), Shevenell (IEEE)
Hydroacoustic Transmission of video image for control of a ROV
(tech research center of finland)
Second Generation Image coding techniques IEEE proceedings 1985
Kunt et al
Image Sequence Coding using Vector Quantization IEEE 1986 Goldberg et al
Interframe Predictive coding using hybrid vecx quant IEEE 1986 Bage
Motion Compensated Coder for Videoconferencing IEEE 1987 Srinivasan/Rao
Scene Adaptive Coder 1981 IEEE Chen
Survey and Alalysis of Image Coding Techniques SPIE/OSA 1976 Pratt
Content-Driven Progressive Transmission of Grey-scale images IEEE 1987
Dreizen
Recursive Block Coding IEEE 1986 Farelle/Jain
Cheers,
Roger
--
"The question of whether a computer can think is no more interesting
than the question of whether a submarine can swim" - Edsgar W. Dijkstra
rg@[msel|unhd].unh.edu | UNH Marine Systems Engineering Laboratory
r_gonzalez@unhh.bitnet | Durham, NH 03824-3525