Title :
Subthreshold analog feature matching circuits with large output voltages
Author :
Ling, B. ; Vedula, S.S. ; Salam, F.M.A.
Author_Institution :
Dept. of Electr. Eng., Michigan State Univ., East Lansing, MI, USA
Abstract :
We present (subthreshold) analog bump circuits with a view towards obtaining large output voltage swings. These large swings can be useful in transferring voltage information to the outside world or to a (digital) computer. We also use some of these circuits to compare the similarity of patches in two images as part of the solution to stereo vision. In this case, considering two n×n patches, the circuit consists of n2 building blocks. Each block operates in the subthreshold region with analog input voltages and analog output currents/voltages
Keywords :
analogue processing circuits; computer vision; feature extraction; image matching; image processing equipment; stereo image processing; analog bump circuits; feature matching circuits; output voltages; patch similarity; stereo vision; subthreshold analog feature matching; subthreshold region; voltage information; Artificial neural networks; Circuit simulation; Circuits and systems; Laboratories; Mirrors; Pixel; Shape; Stereo vision; Threshold voltage; Windows;
Conference_Titel :
Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-1760-2
DOI :
10.1109/MWSCAS.1993.343325
