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CMOS image sensors have received much attention over the last decade, offering the promise of ultra low power and camera-on-chip integration in standard fabrication processes. This year over 30 millio...
Active Pixel Sensors Fabricated in a Standard 0.18 urn CMOS Technology
CMOS APS image sensor dark current quantum efficiency photodiode photogate
2015/8/17
CMOS image sensors have benefited from technology scaling down to O.351um with only minor process modifications. Several studies have predicted that below O.25m, it will become difficult, if not impos...
Comparative analysis of color architectures for image sensors
color digital camera image quality CMOS image sensors
2015/8/17
We have developed a software simulator to create physical models of a scene, compute camera responses, render the camera images and to measure the perceptual color errors (CIELAB) between the scene an...
Comparative Analysis of SNR for Image Sensors with Enhanced Dynamic Range
CMOS Image sensor CCD Wide Dynamic Range APS Pixel level ADC
2015/8/17
Dynamic range is a critical figure of merit for image sensors. Often a sensor with higher dynamic range is regarded as higher quality than one with lower dynamic range. For CCD and CMOS sensors operat...
Characterization of CMOS Image Sensors with Nyquist Rate Pixel Level ADC
ixel level ADC dark current fixed pattern noise read noise QE
2015/8/17
Techniques for characterizing CCD imagers have been developed over many years. These techniques have been recently modified and extended to CMOS PPS and APS imagers. With the scaling of CMOS technolog...
A Nyquist Rate Pixel Level ADC for CMOS Image Sensors
Nyquist Rate Pixel Level ADC CMOS Image Sensors
2015/8/17
A Nyquist rate Multi-Channel Bit Serial (MCBS) ADC using successive comparisons is presented. The ADC is suited to pixel level implementation in a CMOS image sensor. It comprises a 1-bit comparator/la...
A Method for Estimating Quantum Efficiency for CMOS Image Sensors
Quantum efficiency CMOS image sensors gain FPN
2015/8/17
The standard method for measuring QE for a CCD sensor is not adequate for CMOS APS since it does not take into consideration the random offset, gain variations, and nonlinearity introduced by the APS ...
Modeling and Estimation of FPN Components in CMOS Image Sensors
CMOS image sensor fixed pattern noise nonuniformity image sensor characterization
2015/8/14
Fixed pattern noise (FPN) for a CCD sensor is modeled as a sample of a spatial white noise process. This model is,however, not adequate for characterizing FPN in CMOS sensors, since the readout circui...
Single Pixel Test Structures for Characterization and Comparative Analysis of CMOS Image Sensors
Single Pixel Test Structures Comparative Analysis CMOS Image Sensors
2015/8/14
Single Pixel Test Structures for Characterization and Comparative Analysis of CMOS Image Sensors.
Test Structures for Characterization and Comparative Analysis of CMOS Image Sensors
MOS imaging APS quantum efficiency dark current spectral response
2015/8/14
A set of test structures designed to characterize and compare the performance of CMOS passive and active pixel image sensors is presented. The test structures are designed so that they can be rapidly ...
A Real-Time Capable Software-Defined Receiver Using GPU for Adaptive Anti-Jam GPS Sensors
Global Positioning System (GPS) sensor software-defined radio controlled reception pattern antenna (CRPA)
2015/6/24
Due to their weak received signal power, Global Positioning System (GPS) signals are vulnerable to radio frequency interference. Adaptive beam and null steering of the gain pattern of a GPS antenna ar...
Design and Implementation of Real-Time Software Radio for Anti-Interference GPS/WAAS Sensors
software-defined radio controlled reception pattern antenna (CRPA) Space-Time Adaptive Processing (STAP) radio frequency interference
2015/6/24
Adaptive antenna array processing is widely known to provide significant anti-interference capabilities within a Global Navigation Satellite Systems (GNSS) receiver. A main challenge in the quest for ...
A single-photon sampling architecture for solid-state imaging sensors
A single-photon sampling architecture solid-state imaging sensors
2015/6/17
Advances in solid-state technology have enabled the development of silicon photomultiplier sensor arrays capable of sensing individual photons. Combined with high-frequency time-todigital converters (...
Advancing profiling sensors with a wireless approach
wireless profiling sensor neural network object classification sparse detector array
2015/1/20
In general, profiling sensors are low-cost crude imagers that typically utilize a sparse detector array, whereas traditional cameras employ a dense focal-plane array. Profiling sensors are of particul...