Low-noise Imaging System with CMOS Sensor for High-Quality Imaging

Abstract

Image sensors are widely used in the high-volume markets of digital still cameras and camcorders. In recent years, mobile phones with cameras have employed CMOS image sensors because of their low power consumption and single power supply. Initially, CMOS image sensors were inexpensive and provided poor imaging performance. However, more recently, some CMOS image sensors have achieved high-quality imaging performance comparable to that of the CCD. The present paper reviews the challenges of image sensor development over the last few decades and discusses the technology and design architecture for low-noise mega-pixel CMOS image sensors.

Untitled

“…Cross section of CMOS image sensor using Cu interconnect layer (Compared with Al interconnect layers). [18] Fig. 15.…”

Dual Sampling-Based CMOS Active Pixel Sensor with a Novel Correlated Double Sampling Circuit

“…Noise and DR are important parameters in determining the performance of CIS. Various approaches have been proposed to reduce noise and extend DR, based on various approaches such as linear-logarithmic CIS, multiple sampling, overflow integration capacitor and dual sampling [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. These approaches, however, suffer from variously noise, nonlinearity, lower sensitivity, reduced operating speed, and lower resolution.…”

Smart cameras on a chip: Using complementary metal-oxide-semiconductor (CMOS) image sensors to create smart vision chips

“…By exploiting these advantages, innovative CMOS sensors have been developed (see Fossum, 1997 andBigas et al, 2006 for two detailed surveys on CMOS image sensors). Numerous works have focused on major parameters such as sensitivity (Krymski and Tu 2003;Murari et al 2011), noise (Sumi 2006), power consumption (Hanson et al 2010), voltage operation (Xu et al 2002; Gao and Yadid-Pecht 2012), high-speed imaging (Dubois et al 2008;El-Desouki et al 2009) or dynamic range (Schrey et al 2002;Fontaine 2011).…”