SPAD Sensors with &lt;tex&gt;$256\times 2$&lt;/tex&gt; Linear Array for Time Delay Integration Demonstration

Kong, Xiangshun; Bu, Xiaofeng; Mao, Cheng; Zhang, Limin; Ma, Hongru; Yan, Feng

doi:10.1109/icsens.2018.8630289

Cited by 3 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While remote sensing cameras acquiring scene images at a rapid motion, time delay and integration (TDI) is a typical imaging mode that used to reduce image motions. Recently, many types of sensors with TDI are demonstrated [1], [2], and their verifications and applications were also carried out [3]- [5]. For M-stages TDI, it first captures the moving signal shortly-exposed from a scene for M times, then accumulates these signals to obtain high-contrast, reduced motion-effects TDI images, the signal-noise ratio (SNR) of which is increased by √ M times.…”

Section: Introductionmentioning

confidence: 99%

An Improved Fourier-Mellin Transform-Based Registration Used in TDI-CMOS

et al. 2021

View full text Add to dashboard Cite

Time-delayed integration (TDI) is a common imaging mode used in airborne cameras to compensate for image motion. The paper presents an improved Fourier-Mellin transform (FMT)-based registration method, which can be used to realize the registration-based TDI. It first analyzes the noise influences on the FMT spectrum by comparing the curve changes in the standard-deviation versus column plots under the various intensity of noise, then designs a special filter called WCSDF according to the amount of variation of each column in the FMT spectrum, which can reduce the noise affection on registration process to the larger extent. And an improved FMT-based registration method is finally proposed to form a framework of registration-based TDI. In computer simulations, the proposed method shows a significant improvement in robustness to noise (noise level up to 40). Compared with the existing method, its low computational complexity makes the method easy to be implemented in hardware and can estimate the larger relative shifts among dim noisy images, moreover, the TDI images generated by the proposed framework have higher quality in the index of information entropy, average gradient, and spatial frequency response.

show abstract

Section: Introductionmentioning

confidence: 99%

An Improved Fourier-Mellin Transform-Based Registration Used in TDI-CMOS

et al. 2021

View full text Add to dashboard Cite

show abstract

CMOS Implementation of Time Delay Integration (TDI) for Imaging Applications: A Brief Review

Semwal

Saxena

2019

IETE Technical Review

View full text Add to dashboard Cite

A High SNR Improvement CMOS Analog Accumulator with Charge Compensation Technique

Guo

et al. 2022

Sensors

View full text Add to dashboard Cite

In this paper, a 7.75 kHz line rate analog domain time delay integration (TDI) CMOS analog accumulator with 128-stage is proposed. An adaptive compensation for the charge loss due to parasitic effects is adopted. Based on the influence mechanism of parasitic effects, alternately charging the top and bottom plates of the storage capacitor while cooperate positive feedback capacitor dynamically compensates for the charge loss of the sampling phase and the holding phase. Using the proposed circuit, after the post-layout simulation verification, the SNR of 128 stage accumulation can be improved by as much as 20.9 dB.

show abstract

SPAD Sensors with <tex>$256\times 2$</tex> Linear Array for Time Delay Integration Demonstration

Cited by 3 publications

References 7 publications

An Improved Fourier-Mellin Transform-Based Registration Used in TDI-CMOS

An Improved Fourier-Mellin Transform-Based Registration Used in TDI-CMOS

CMOS Implementation of Time Delay Integration (TDI) for Imaging Applications: A Brief Review

A High SNR Improvement CMOS Analog Accumulator with Charge Compensation Technique

Contact Info

Product

Resources

About