Title :
A CMOS retinal rotational sensor for clockwise/counterclockwise detecting and velocity measuring
Author :
Chiang, Cheng-Ta
Author_Institution :
Dept. of Electr. Eng., Nat. Chia Yi Univ., Chiayi, Taiwan
Abstract :
In this paper, a CMOS retinal rotational sensor for clockwise/counterclockwise detecting and velocity measuring is proposed. The proposed chip is attractive due to the fact that analog image processing circuits within a pixel are implemented by digital circuits. It can be integrated robustly and compactly. Based upon the device parameters of 0.35 μm 2P4M CMOS technology with 3 V power supply, all the functions and performance of the proposed CMOS retinal rotational sensor for clockwise/counterclockwise detecting and velocity measuring are successfully tested and proven through SPICE simulations. The chip area is 1.792 × 1.795 mm2. The proposed chip is suitable for rotational image detecting and velocity measuring.
Keywords :
CMOS image sensors; image processing equipment; velocity measurement; 2P4M CMOS technology; CMOS retinal rotational sensor; SPICE simulation; analog image processing circuit; clockwise-counterclockwise detection; digital circuit; size 0.35 mum; velocity measurement; voltage 3 V; CMOS integrated circuits; Clocks; Retina; Rotation measurement; Semiconductor device measurement; Smoothing methods; Velocity measurement; Rotational detecting; image sensor; velocity measuring;
Conference_Titel :
Industrial Electronics and Applications (ISIEA), 2011 IEEE Symposium on
Conference_Location :
Langkawi
Print_ISBN :
978-1-4577-1418-4
DOI :
10.1109/ISIEA.2011.6108681
