Results 181 to 190 of about 2,661 (209)
Some of the next articles are maybe not open access.
A 2.5 pJ/b Binary Image Sensor as a Pathfinder for Quanta Image Sensors
IEEE Transactions on Electron Devices, 2016This paper presents a pathfinder binary image sensor for exploring low-power dissipation needed for future implementation of gigajot single-bit quanta image sensor (QIS) devices. Using a charge-transfer amplifier design in the readout signal chain and pseudostatic clock gating units for row and column addressing, the 1-Mpixel binary image sensor ...
Saleh Masoodian, , Jiaju Ma
exaly +2 more sources
A low-noise readout circuit design for multi-bit quanta image sensor
Microelectronics Journal, 2022Xiuyu Wang, Wanbin Zha, Kaiming Nie
exaly +2 more sources
Theoretical analysis and image reconstruction for multi-bit quanta image sensors
Signal Processing, 2021Abstract A new breed of photon-counting sensors, called quanta image sensor (QIS), enables the detection of light with precision represented by the number of photons arriving within a time period. However, most existing analysis results on QIS systems are formulated for the single-bit case only.
Hiu Tung Wong, Chi-Sing Leung, Derek Ho
openaire +1 more source
Image reconstruction and threshold design for Quanta Image Sensors
2016 IEEE International Conference on Image Processing (ICIP), 2016Quanta Image Sensor (QIS) has been envisioned as a candidate solution for next generation image sensors. We provide two new contributions to the signal processing aspects of QIS. First, we develop an image reconstruction algorithm to recover the underlying images from the QIS data, which is a massive array of binarized Poisson random variables. The new
Omar A. Elgendy, Stanley H. Chan
openaire +1 more source
Quanta image sensor: concepts and progress
SPIE Proceedings, 2016The QIS was conceived when contemplating shrinking pixel sizes and storage capacities, and the steady increase in digital processing power. In the single-bit QIS, the output of each field is a binary bit plane, where each bit represents the presence or absence of at least one photoelectron in a photodetector. A series of bit planes is generated through
Eric R. Fossum +2 more
openaire +1 more source
Progress status on Quanta Image Sensors
Photonics for Quantum 2020, 2021The Quanta Image Sensor (QIS) is a photon-counting image sensor conceptualized in 2004 by Fossum and reduced to practice over the past 8 years at Dartmouth using a CMOS image sensor platform, and now referred to as CIS-QIS. This CIS-QIS device is a photon-number resolving sensor that does not use avalanche multiplication, and has been demonstrated in ...
openaire +1 more source
Low Bit-Depth ADCs for Multi-bit Quanta Image Sensors
IEEE Journal of Solid-State Circuits, 2021A 1024 $\times $ 896 test chip is presented in this article to explore a low-power readout circuit for a multi-bit quanta image sensor (QIS). Five well-known analog-to-digital converter (ADC) approaches [flash, pipeline, successive approximation register (SAR), cyclic, and single-slope (SS)] are studied, and two types of ADCs, namely, SAR ADCs ...
Zhaoyang Yin +2 more
openaire +1 more source
Image Reconstruction for Quanta Image Sensors Using Deep Neural Networks
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018Quanta Image Sensor (QIS) is a single-photon image sensor that oversamples the light field to generate binary measurements. Its single-photon sensitivity makes it an ideal candidate for the next generation image sensor after CMOS. However, image reconstruction of the sensor remains a challenging issue.
Joon Hee Choi +2 more
openaire +1 more source
Enabling Low-light Digital Holography with a Quanta Image Sensor
Digital Holography and 3-D Imaging 2022, 2022We demonstrate a digital holographic imaging system where the hologram is captured by a quanta image sensor (QIS), and the object wavefront is then computationally retrieved. This scheme enables digital holography at a very low signal level via individual photon detection.
Yunping Zhang, Edmund Y. Lam
openaire +1 more source
Modeling the photon counting and photoelectron counting characteristics of quanta image sensors
Journal of Semiconductors, 2021Abstract A signal chain model of single-bit and multi-bit quanta image sensors (QISs) is established. Based on the proposed model, the photoresponse characteristics and signal error rates of QISs are investigated, and the effects of bit depth, quantum efficiency, dark current, and read noise on them are analyzed.
Bowen Liu, Jiangtao Xu
openaire +1 more source