Results 81 to 90 of about 58,858 (200)

Adaptive Thresholding Scheme for Demodulation of Rolling-Shutter Images Obtained in CMOS Image Sensor Based Visible Light Communications

open access: yesIEEE Photonics Journal, 2018
Light-emitting-diode transmitter and complementary-metal–oxide–semicon-ductor (CMOS) image sensor receiver based visible light communication is a promising scheme for an optical wireless communication. During the demodulation of the rolling
Chi-Wai Chow   +3 more
doaj   +1 more source

Dynamic range optimisation of CMOS image sensors dedicated to space applications [PDF]

open access: yes, 2007
Nowadays, CMOS image sensors are widely considered for space applications. Their performances have been significantly enhanced with the use of CIS (CMOS Image Sensor) processes in term of dark current, quantum efficiency and conversion gain.
Boucher, Luc   +5 more
core   +1 more source

A 12-Bit High-Speed Column-Parallel Two-Step Single-Slope Analog-to-Digital Converter (ADC) for CMOS Image Sensors

open access: yesSensors, 2014
A 12-bit high-speed column-parallel two-step single-slope (SS) analog-to-digital converter (ADC) for CMOS image sensors is proposed. The proposed ADC employs a single ramp voltage and multiple reference voltages, and the conversion is divided into coarse
Tao Lyu   +3 more
doaj   +1 more source

Proximity Gettering Design of Hydrocarbon–Molecular–Ion–Implanted Silicon Wafers Using Dark Current Spectroscopy for CMOS Image Sensors

open access: yesSensors, 2019
We developed silicon epitaxial wafers with high gettering capability by using hydrocarbon−molecular−ion implantation. These wafers also have the effect of hydrogen passivation on process-induced defects and a barrier to out-diffusion of ...
Kazunari Kurita   +7 more
doaj   +1 more source

Pixel design and evaluation in CMOS image sensor technology [PDF]

open access: yes, 2009
A chip designed in a 0.18 μm CMOS Image Sensor Technology (CIS) is presented which incorporates different pixel design alternatives for Active Pixel Sensor (APS).
Liñán Cembrano, Gustavo   +2 more
core  

Form Factor Improvement of Smart-Pixels for Vision Sensors through 3-D Vertically- Integrated Technologies [PDF]

open access: yes, 2014
While conventional CMOS active pixel sensors embed only the circuitry required for photo-detection, pixel addressing and voltage buffering, smart pixels incorporate also circuitry for data processing, data storage and control of data interchange.
Brea Sánchez, Víctor Manuel   +7 more
core   +1 more source

Decoding CMOS Rolling-Shutter Pattern in Translational or Rotational Motions for VLC

open access: yesIEEE Photonics Journal, 2019
We propose and demonstrate a CMOS rolling-shutter pattern decoding scheme based on two newly introduced schemes, named row grayscale redistribution and differential grayscale packet selection to improve the performance in decoding the CMOS rolling ...
Chi-Wai Chow   +5 more
doaj   +1 more source

Practical True Random Number Generator Using CMOS Image Sensor Dark Noise

open access: yesIEEE Access, 2019
We present a true random number generator (TRNG) using dark noise of a CMOS image sensor. Because the proposed TRNG is based on the dark characteristics of the CMOS image sensor, it does not require any additional hardware, such as light source and ...
Byung Kwon Park   +7 more
doaj   +1 more source

Trends in Pixel Detectors: Tracking and Imaging

open access: yes, 2004
For large scale applications, hybrid pixel detectors, in which sensor and read-out IC are separate entities, constitute the state of the art in pixel detector technology to date.
Wermes, Norbert
core   +2 more sources

A 75-ps Gated CMOS Image Sensor with Low Parasitic Light Sensitivity

open access: yesSensors, 2016
In this study, a 40 × 48 pixel global shutter complementary metal-oxide-semiconductor (CMOS) image sensor with an adjustable shutter time as low as 75 ps was implemented using a 0.5-μm mixed-signal CMOS process.
Fan Zhang, Hanben Niu
doaj   +1 more source

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