Title
Mixed-signal stochastic computation demonstrated in an image sensor with integrated 2D edge detection and noise filtering
Abstract
In this work we describe mixed-signal stochastic computing (MSSC) and demonstrate how it can be used to efficiently integrate computation into a signal path before data conversion. MSSC performs computation directly on the analog values output by sensors, which enables MSSC to combine the area efficiency of traditional stochastic computing with the information density and performance of analog computation. To demonstrate this technology we integrated MSSC between pixel bitlines and the ADC in an image sensor, enabling in situ latency-free edge detection and noise filtering. The MSSC implementation is found to be 2.75× lower power than a traditional digital synthesis implementation while simultaneously requiring 5× lower area.
Year
DOI
Venue
2014
10.1109/CICC.2014.6946130
Custom Integrated Circuits Conference
Keywords
DocType
Citations 
analogue-digital conversion,edge detection,image sensors,interference suppression,2D edge detection,ADC,MSSC,data conversion,image sensor,latency-free edge detection,mixed-signal stochastic computing,noise filtering,signal path,Stochastic computing,edge detection,image sensor,integrated computation,mixed-signal,noise filtering,sensors
Conference
1
PageRank 
References 
Authors
0.38
0
5
Name
Order
Citations
PageRank
David Fick158436.85
Gyouho Kim230035.86
Allan Wang361.02
David Blaauw48916823.47
Dennis Sylvester55295535.53