Title
Smart camera based on embedded HW/SW coprocessor
Abstract
This paper describes an image acquisition and a processing system based on a new coprocessor architecture designed for CMOS sensor imaging. The system exploits the full potential CMOS selective access imaging technology because the coprocessor unit is integrated into the image acquisition loop. The acquisition and coprocessing architecture are compatible with the majority of CMOS sensors. It enables the dynamic selection of a wide variety of acquisition modes as well as the reconfiguration and implementation of high-performance image preprocessing algorithms (calibration, filtering, denoising, binarization, pattern recognition). Furthermore, the processing and data transfer, from the CMOS sensor to the processor, can be operated simultaneously to increase achievable performances. The coprocessor architecture has been designed so as to obtain a unit that can be configured on the fly, in terms of type and number of chained processing stages (up to 8 successive predefined preprocessing stages), during the image acquisition process that can be defined by the user according to each specific application requirement. Examples of acquisition and processing performances are reported and compared to classical image acquisition systems based on standard modular PC platforms. The experimental results show a considerable increase of the achievable performances.
Year
DOI
Venue
2008
10.1155/2008/597872
EURASIP J. Emb. Sys.
Keywords
Field
DocType
high-performance image,chained processing stage,classical image acquisition system,embedded hw,image acquisition loop,image acquisition,cmos sensor imaging,sw coprocessor,achievable performance,acquisition mode,image acquisition process,smart camera,cmos sensor
Data transmission,Computer science,Filter (signal processing),Smart camera,Real-time computing,CMOS sensor,CMOS,Modular design,Coprocessor,Computer hardware,Control reconfiguration,Embedded system
Journal
Volume
Issue
ISSN
2008,
1
1687-3963
Citations 
PageRank 
References 
7
0.54
11
Authors
4
Name
Order
Citations
PageRank
Romuald Mosqueron170.54
Julien Dubois214618.76
Marco Mattavelli353673.02
David Mauvilet470.54