Title :
A CMOS imager with pixel prediction for image compression
Author :
Leon, Daniel ; Balkir, Sina ; Sayood, Khalid ; Hoffman, M.W.
Author_Institution :
Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA
Abstract :
A predictive approach to on-chip focal plane compression is presented. This approach, unlike the transform coding techniques, is based on pixel prediction. In this technique, the value of each pixel is predicted by considering the values of its closest neighbor pixels. An analog circuit has been designed to accomplish a simple prediction function based on the values of two neighbor pixels. To demonstrate the approach, a prototype chip containing an imager and the prediction circuits has been designed, implemented, and tested.
Keywords :
CMOS analogue integrated circuits; CMOS image sensors; data compression; focal planes; image coding; prediction theory; CMOS imager; analog circuit; image compression; on-chip focal plane compression; pixel prediction; Bandwidth; CMOS image sensors; CMOS technology; Circuit testing; Decoding; Discrete cosine transforms; Image coding; Pixel; Sensor arrays; Transform coding;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206302
