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Pixel level processing promises many significant advantages including high SNR, low power, and the ability to adapt image capture and processing to different environments by processing signals during ...
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...
Each modulator is implemented using 17 transistors. The second technique is a Nyquist rate multi—channel--bit—serial (MCBS) ADC. The technique uses successive comparisons to convert the pixel voltage ...
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 ...
AUTOMATIC IMAGE SEQUENCE REGISTRATION BASED ON A LINEAR SOLUTION AND SCALE INVARIANT KEYPOINT MATCHING
Aerial Triangulation Linear solutions Scale invariant feature transform Essential matrix image correspondence
2015/8/14
Automatic registration of image sequences has been a subject of research for many years, both in the photogrammetric and computer
vision communities. As part of the automation, linear orientation me...
ROBUST LEAST-SQUARES ADJUSTMENT BASED ORIENTATION AND AUTO-CALIBRATION OF WIDE-BASELINE IMAGE SEQUENCES
ADJUSTMENT BASED AUTO-CALIBRATION
2015/8/14
In this paper we propose a strategy for the orientation and auto-calibration of wide-baseline image sequences. Our
particular contribution lies in demonstrating, that by means of robust least-squares...
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...
This article describes a new method of Shape from Shading, Shape from Isophotes. Shape from Isophotes uses the image isophotes
for recovering the object surface normals. It is a propagation method. ...
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 ...
CMOS FPA with Multiplexed Pixel Level ADC.
A CMOS Area Image Sensor with Pixel-Level A/D Conversion
CMOS Area Image Sensor Pixel-Level A/D Conversion
2015/8/14
A CMOS Area Image Sensor with Pixel-Level A/D Conversion.
Optical Flow Estimation Using Temporally Oversampled Video
Optical flow estimation Motion estimation High speed imaging CMOS image sensor Temporal oversampling
2015/8/12
Recent advances in imaging sensor technology make high frame rate video capture practical. As demonstrated in previous work, this capability can be used to enhance the performance of many image and vi...
Synthesis of High Dynamic Range Motion Blur Free Image From Multiple Captures
CMOS image sensor dynamic range extension motion blur restoration motion detection photocurrent estimation saturation detection
2015/8/12
Advances in CMOS image sensors enable high-speed image readout, which makes it possible to capture multiple images within a normal exposure time. Earlier work has demonstrated the use of this capabili...
Common Principles of Image Acquisition Systems and Biological Vision
CMOS sensor digital camera dynamic range human vision image acquisition image mosaicing image registration image sensor memory architecture multiple capture multiple representations visual pathways
2015/8/12
In this paper, we argue that biological vision and electronic image acquisition share common principles despite their vastly different implementations. These shared principles are based on the need to...