Title :
A PID Controller Applied to the Gain Control of a CMOS Camera Using Reconfigurable Computing
Author :
Rossi, Drausio Linardi ; Bonato, Vanderlei ; Marques, Eduardo ; Gago Pontes de Brito Lima, Joao Miguel
Author_Institution :
Inst. of Math. & Comput. Sci., Univ. of Sao Paulo, Sao Carlos, Brazil
fDate :
Nov. 30 2011-Dec. 2 2011
Abstract :
This paper shows a PID (Proportional, Integral, Derivative) controller, implemented in a reconfigurable hardware, to control the gain of a CMOS image sensor. The main functions of the proposed system are: image acquisition, histogram building, histogram analysis, and PID gain control based on the histogram analysis. The system has several functional modules working in parallel in order to achieve high performance. As a result, the system is able to compute the whole PID functions in 4.8μs, allowing its application in real time systems.
Keywords :
CMOS image sensors; control engineering computing; gain control; three-term control; CMOS camera; CMOS image sensor; PID controller; gain control; histogram analysis; histogram building; image acquisition; proportional integral derivative controller; reconfigurable computing; reconfigurable hardware; time 4.8 mus; Cameras; Field programmable gate arrays; Gain control; Hardware; Histograms; Registers; Tuning; CMOS camera; FPGA; PID Controller; Reconfigurable Computing;
Conference_Titel :
Reconfigurable Computing and FPGAs (ReConFig), 2011 International Conference on
Conference_Location :
Cancun
Print_ISBN :
978-1-4577-1734-5
DOI :
10.1109/ReConFig.2011.2
