Title :
New Error Sensitivity Model for the Analog Hardware Implementation of Inner Products
Author :
Gomes, Jose Gabriel R. C. ; de Mello, M.J.C. ; Haas, H.L. ; Petraglia, A.
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Rio de Janeiro, Brazil
Abstract :
We propose a new model for the analysis of the sensitivity of inner products to analog hardware implementation. This model is based on spice simulations of the circuits to be implemented, and is useful for the design of image compression systems for CMOS imaging sensors. By means of numerical simulations, the new model is compared with a previous simplified model, and shown to be equivalent to this previous model for 4-bit precision. For 6-bit precision, the results differ from the theoretical predictions made by the previous model. Image compression results are presented.
Keywords :
CMOS image sensors; SPICE; data compression; image coding; CMOS imaging sensor; analog hardware implementation; error sensitivity model; image compression system; inner products; spice simulation; CMOS image sensors; Circuit simulation; Hardware; Image coding; Image converters; Multilayer perceptrons; Optical imaging; Pixel; Semiconductor device modeling; Vector quantization; CMOS analog integrated circuits; Image coding; Multilayer perceptrons; Vector quantization;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.313138
