Title :
Single-chip CMOS image sensor for mobile applications
Author :
Yoon, Kwangho ; Kim, Chanki ; Lee, Bumha ; Lee, Doyoung
Author_Institution :
MT Image Sensor Design Team, Hynix Semicond. Inc., Kyoungki-do, South Korea
fDate :
12/1/2002 12:00:00 AM
Abstract :
A single-chip image sensor for mobile applications is realized in a standard 0.35-μm CMOS technology. The chip includes basic color processing functions of color interpolation, color correction, white balance adjustment, gamma correction, and analog-to-digital conversion. The majority of color signal processing is attained in the analog domain and this enables the implementation of a small and low-power image sensor that provides good image quality with reduced quantization noise. The image sensor consumes less than 20 mW from a 3.3-V supply voltage operating at 30 frames/s.
Keywords :
CMOS analogue integrated circuits; CMOS image sensors; analogue processing circuits; analogue-digital conversion; image colour analysis; 0.35 micron; 20 mW; 3.3 V; CDS buffer; analog domain; analog-to-digital conversion; color correction; color interpolation; color processing functions; color signal processing; gamma correction; image quality; mobile applications; quantization noise; single-chip CMOS image sensor; small low-power image sensor; white balance adjustment; Analog-digital conversion; CMOS image sensors; CMOS technology; Color; Colored noise; Image quality; Image sensors; Interpolation; Quantization; Signal processing;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2002.804349
