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Hyperspectral cameras generate a large amount of data due to the presence of hundreds of spectral bands as opposed to only three channels (red, green, and blue) in traditional cameras. This requires a significant amount of data transmission…

图像与视频处理 · 电气工程与系统科学 2022-04-12 Gourav Datta , Zihan Yin , Ajey Jacob , Akhilesh R. Jaiswal , Peter A. Beerel

Today, continued miniaturization in electronic integrated circuits (ICs) appears to have reached its fundamental limit. At the same time, energy consumption due by communication becomes the dominant limitation in high performance electronic…

The capacitance of the charge collection node of a sensor system is an important parameter for the design of the analog front-end electronics. The analog front-end of high-granularity sensors like for example hybrid pixel detectors need to…

仪器与探测器 · 物理学 2021-03-24 H. Krüger , E. Kimmerle

A cluster imaging technique for Transmission Electron Microscopy with a direct detection CMOS pixel sensor is presented. Charge centre-of-gravity reconstruction for individual electron clusters improves the spatial resolution and thus the…

仪器与探测器 · 物理学 2009-10-29 Marco Battaglia , Devis Contarato , Peter Denes , Piero Giubilato

In this paper, a low-noise CMOS image sensor with enhanced dynamic range (DR), using an in-pixel chopping technique, is presented. The proposed in-pixel chopping technique is used to reduce the low-frequency or 1/f noise of the source…

应用物理 · 物理学 2018-11-28 Kapil Jainwal

This study investigates the charging-up effect on the Topmetal-II- chip in Gas Micro-Pixel Detectors(GMPD). It is found that this effect differs from the charging-up typically observed in gas detector multiplier devices and increases the…

仪器与探测器 · 物理学 2024-08-06 Difan Yi , Qian Liu , Hongbang Liu , Fei Xie , Huanbo Feng , Lin Zhou , Zuke Feng , Yangheng Zheng

This paper presents the development of a new algorithm for Gaussian based color image enhancement system. The algorithm has been designed into architecture suitable for FPGA/ASIC implementation. The color image enhancement is achieved by…

硬件体系结构 · 计算机科学 2014-09-16 M. C. Hanumantharaju , M. Ravishankar , D. R. Rameshbabu

The optimization of silicon photodiode-based CMOS sensors with backside-illumination for 300-1000 nm wavelength range was studied. It was demonstrated that a single hole on a photodiode increases the optical efficiency of the pixel in…

3D integration of GaSb-based gain chips on a silicon photonics platform using micro-transfer printing is demonstrated for the first time. The release process of GaSb coupons, and their transfer for the demonstration of hybrid…

In this paper we report on a set of characterisations carried out on the first monolithic LGAD prototype integrated in a customised 110 nm CMOS process having a depleted active volume thickness of 48 $\mu$m. This prototype is formed by a…

Computer-generated graphics (CGs) are images generated by computer software. The~rapid development of computer graphics technologies has made it easier to generate photorealistic computer graphics, and these graphics are quite difficult to…

多媒体 · 计算机科学 2018-04-26 Ye Yao , Weitong Hu , Wei Zhang , Ting Wu , Yun-Qing Shi

Silicon pixel sensors manufactured using commercial CMOS processes are promising instruments for high-energy particle physics experiments due to their high yield and proven radiation hardness. As one of the essential factors for the…

仪器与探测器 · 物理学 2024-04-01 Sinuo Zhang , Ivan Caicedo , Tomasz Hemperek , Toko Hirono , Jochen Dingfelder

One of the basic parameters of a CCD camera is its gain, i.e. the number of detected electrons per output Analogue to Digital Unit (ADU). This is normally determined by finding the statistical variances from a series of flat-field exposures…

天体物理仪器与方法 · 物理学 2021-01-28 J. Gordon Robertson

As an efficient image contrast enhancement (CE) tool, adaptive gamma correction (AGC) was previously proposed by relating gamma parameter with cumulative distribution function (CDF) of the pixel gray levels within an image. ACG deals well…

多媒体 · 计算机科学 2022-08-31 Gang Cao , Lihui Huang , Huawei Tian , Xianglin Huang , Yongbin Wang , Ruicong Zhi

We present a concept to improve the spatial resolution of silicon pixel-detectors via the implementation of a sub-pixel cross-coupling, which introduces directional charge sharing between pixels. The charge-collection electrode is segmented…

仪器与探测器 · 物理学 2020-07-24 Sinuo Zhang , David-Leon Pohl , Tomasz Hemperek , Jochen Dingfelder

Phase-retrieval from coded diffraction patterns (CDP) is important to X-ray crystallography, diffraction tomography and astronomical imaging, yet remains a hard, non-convex inverse problem. We show that CDP recovery can be reformulated…

A hybrid pixel detector based on the concept of simultaneous charge integration and photon counting will be presented. The second generation of a counting and integrating X-ray prototype CMOS chip (CIX) has been operated with different…

仪器与探测器 · 物理学 2009-11-13 H. Krüger , J. Fink , E. Kraft , N. Wermes , P. Fischer , I. Peric , C. Herrmann , M. Overdick , W. Rütten

Traditional CMOS sensors suffer from restricted dynamic range and sub optimal performance under extreme lighting conditions. They are affected by electronic noise in low light conditions and pixel saturation while capturing high…

图像与视频处理 · 电气工程与系统科学 2024-12-18 Sumit Sharma , Girish Rongali , Kaushik Mitra

Multiple-Amplifier Sensing (MAS) charge-coupled devices (CCDs) have recently been shown to be promising silicon detectors that meet noise sensitivity requirements for next generation Stage-5 spectroscopic surveys and potentially, future…

天体物理仪器与方法 · 物理学 2025-04-30 Kenneth W. Lin , Abby Bault , Armin Karcher , Julien Guy , Stephen E. Holland , William F. Kolbe , Peter E. Nugent