Title :
CCD image sensor with differential, pyramidal output for lossless image compression
Author :
Kemeny, Sabrina ; Torby, Habib ; Meadows, Henry ; Bredthauer, Richard ; LaShell, Melanie ; Fossum, Eric R.
Author_Institution :
Columbia Univ., New York, NY, USA
Abstract :
The first integration of a 256×256 buried-channel frame-transfer CCD (charge coupled device) image sensor with CCD-based reformatting circuitry to allow on-chip difference encoding for hierarchical lossless image compression is reported. The 28 frames per second pyramidal pixel output is in 3×3 pixel blocks with the center pixel first. The reformatting circuitry occupies 2% of the active chip area with an estimated power dissipation of 150 μW at a 30-Hz frame rate
Keywords :
CCD image sensors; computerised picture processing; data compression; digital signal processing chips; encoding; 150 muW; CCD image sensor; CCD-based reformatting circuitry; buried-channel frame-transfer CCD; difference encoding; lossless image compression; pixel output; power dissipation; pyramidal output; Bandwidth; Charge coupled devices; Charge-coupled image sensors; Circuits; Image coding; Image reconstruction; Image storage; Pixel; Power dissipation; Sensor arrays;
Conference_Titel :
Custom Integrated Circuits Conference, 1991., Proceedings of the IEEE 1991
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0015-7
DOI :
10.1109/CICC.1991.164120
