DocumentCode :
3210842
Title :
Analog, Continuous Time, Fully Parallel, Programmable Image Processor Based on Vector Gilbert Multiplier
Author :
Dlugosz, R.
Author_Institution :
Univ. of Neuchatel, Neuchatel
fYear :
2007
fDate :
21-23 June 2007
Firstpage :
231
Lastpage :
236
Abstract :
A conception as well as a CMOS implementation of the analog, ultra low power and fully parallel image processor have been presented in this paper. Proposed circuit bases on the 2-D FIR filters realized using the Gilbert vector multiplier. Proposed filter enables realization of various lowpass and highpass 2-D FIR filter masks. Both the mask dimensions and values of the filter coefficients can be programmed using several dozen digital signals and several DC currents. Proposed image processor does not use the clock generator, what simplifies the overall circuit´s structure and reduces the noise level. An example (6times6) image processor that enables filtering with a 3times3 mask has been implemented in CMOS 0.18 mum process. This circuit calculates 36 pixels in parallel every 1 mus, dissipating power about 20 muW. The image resolution can be easily enlarged by a parallel connection of many designed 6times6 cells.
Keywords :
CMOS analogue integrated circuits; FIR filters; image resolution; multiplying circuits; 2D FIR filters; CMOS; analog image processor; continuous time image processor; filter coefficients; image resolution; mask dimensions; parallel image processor; programmable image processor; vector Gilbert multiplier; CMOS process; Cellular neural networks; Circuits; Clocks; Digital filters; Filtration; Finite impulse response filter; Image resolution; Pixel; Signal processing; Analog parallel image processor; Gilbert multiplier;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mixed Design of Integrated Circuits and Systems, 2007. MIXDES '07. 14th International Conference on
Conference_Location :
Ciechocinek
Print_ISBN :
83-922632-9-4
Electronic_ISBN :
83-922632-9-4
Type :
conf
DOI :
10.1109/MIXDES.2007.4286156
Filename :
4286156
Link To Document :
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