CMOS image sensors: electronic camera-on-a-chip
TLDR
In this article, the requirements for CMOS image sensors and their historical development, CMOS devices and circuits for pixels, analog signal chain, and on-chip analog-to-digital conversion are reviewed and discussed.Abstract:
CMOS active pixel sensors (APS) have performance competitive with charge-coupled device (CCD) technology, and offer advantages in on-chip functionality, system power reduction, cost, and miniaturization. This paper discusses the requirements for CMOS image sensors and their historical development, CMOS devices and circuits for pixels, analog signal chain, and on-chip analog-to-digital conversion are reviewed and discussed.read more
Citations
More filters
Journal ArticleDOI
Design of real-time image enhancement preprocessor for CMOS image sensor
TL;DR: A spatially adaptive contrast enhancement algorithm was incorporated into the preprocessor with color interpolation, gamma correction, and automatic exposure control to compensate for the physical limitation of the CMOS image sensor.
Proceedings ArticleDOI
Electronic compound-eye image sensor: construction and calibration
TL;DR: In this article, the authors demonstrate the construction and operation of a prototype compound eye sensor which currently consists of up to 20 eyelets, each of which forms an image of approximately 150 pixels in diameter on a single CMOS image sensor.
Journal ArticleDOI
Image interpolation and denoising for division of focal plane sensors using Gaussian processes.
TL;DR: The comprehensive mathematical model as well as experimental results of the GP interpolation performance for division of focal plane polarimeter are provided, which is most pronounced in cases of low signal-to-noise ratio (SNR).
Journal ArticleDOI
Current Mode Image Sensor With Two Transistors per Pixel
TL;DR: A linear current mode active pixel sensor for low fixed-pattern noise imaging is presented and the increased linearity of the pixel current coupled with current mode difference double sampling greatly reduces spatial variations across the image sensor array.
Journal ArticleDOI
Control of microfluidic systems: two examples, results, and challenges
TL;DR: In this paper, the authors describe results and challenges in feedback control of microfluidic systems and present two representative examples: control of liquid droplets by electrically actuated surface tension forces and steering of many particles at once by micro flow control.
References
More filters
Journal ArticleDOI
Charge coupled semiconductor devices
W. S. Boyle,G. E. Smith +1 more
TL;DR: A new semiconductor device concept that consists of storing charge in potential wells created at the surface of a semiconductor and moving the charge over the surface by moving the potential minima is described.
Journal Article
CMOS image sensors: Electronic camera-on-a-chip
TL;DR: In this article, the requirements for CMOS image sensors and their historical development, CMOS devices and circuits for pixels, analog signal chain, and on-chip analog-to-digital conversion are reviewed and discussed.
Journal ArticleDOI
CMOS active pixel image sensors for highly integrated imaging systems
Sunetra K. Mendis,Sabrina E. Kemeny,R.C. Gee,Bedabrata Pain,Craig Staller,Quiesup Kim,Eric R. Fossum +6 more
TL;DR: In this paper, a family of CMOS-based active pixel image sensors (APSs) that are inherently compatible with the integration of on-chip signal processing circuitry is reported.
Proceedings ArticleDOI
Active Pixel Sensors: Are CCD's Dinosaurs?
TL;DR: ActivePixel Sensor (APS) as mentioned in this paper is a detector array technology that has at least one active transistor within the pixel unit cell, which eliminates the need for nearly perfect charge transfer, which makes CCD's radiation'soft' and difficult to use under low light conditions, difficult to integrate with on-chip electronics, difficulty to use at low temperatures, and difficulty to manufacture in non-silicon materials that extend wavelength response.
Journal ArticleDOI
CMOS active pixel image sensor
TL;DR: In this paper, a 2.0 /spl mu/m double-poly, double-metal foundry CMOS active pixel image sensor is reported, which uses TTL compatible voltages, low noise and large dynamic range, and is useful in machine vision and smart sensor applications.