22 papers · ranked by Valyu relevance
Susrutha Babu Sukhavasi, Suparshya Babu Sukhavasi, Khaled Elleithy, Shakour Abuzneid + 1 more
'Shakour Abuzneid' 'Abdelrahman Elleithy'] Recent technology advances in CMOS image sensors (CIS) enable their utilization in the most demanding of surveillance fields, especially visual surveillance and intrusion detection in intelligent surveillance systems, aerial surveillance in war zones, Earth environmental…
Banghe Zhu, Henry Jonathan, Agata Szłapa-Kula, Sławomir Kula
To translate near-infrared (NIR) and shortwave infrared (SWIR) fluorescence imaging into the clinic, the paired imaging device needs to detect trace doses of fluorescent imaging agents. Except for the filtration scheme and excitation light source, the image sensor used will finally determine the detection limitations…
Orit Skorka, Dileepan Joseph
Technologies to fabricate integrated circuits (IC) with 3D structures are an emerging trend in IC design. They are based on vertical stacking of active components to form heterogeneous microsystems. Electronic image sensors will benefit from these technologies because they allow increased pixel-level data processing…
Kirthika Nahalingam, L.P.B. Katehi
—CMOS Image Sensors are experiencing significant growth due to their capabilities to be integrated in smartphones with refined image quality. One of the major contributions to the growth of image sensors is the innovation brought about in their fabrication processes. This paper presents a detailed review of the…
Valerii V. Vlasyuk, Irina Afanasieva, Valerii I. Ardilanov, Valerii A. Murzin + 3 more
'Valerii A. Murzin' 'N. G. Ivaschenko' 'Maksim A. Pritychenko' 'Sergei N. Dodonov'] Abstract. The development of technologies for creating various types of solid-state detectors for optical astronomy is reviewed. The principles of designing astronomical photodetecting systems with large-format sensors based on…
B. Walasek-Hoehne, K. H. Hoehne, Rajiv Kumar Singh
Cameras are used to observe and store information transmitted by light. The intensity of the observed light is proportional to the impinging number of photons in it, and the photons energy is given by its wavelength (E = hc/λ). Cameras constitute of optics elements to generate an image of a distant object onto a…
AMR M. MAGHRABY, IBRAHIM BOZYEL, ISLAM T. ABOUGINDIA, SUAT U. AY
The low-light performance of image sensors can be enhanced by designing high-effective conversion gain signal paths from photon conversion sites to chip outputs. This can be achieved by using high-gain in-pixel amplifiers, high-gain column amplifiers, and by reducing the conversion capacitance of photon-sensing nodes.…
Jamie Alexander Ballin, Jamie Phillip Crooks, Paul Dominic Dauncey, Anne-Marie Magnan + 11 more
'Anne-Marie Magnan' 'Yoshinari Mikami' 'Owen Daniel Miller' 'Matthew Noy' 'Vladimir Rajovic' 'Marcel Stanitzki' 'Konstantin Stefanov' 'Renato Turchetta' 'Mike Tyndel' 'Enrico Giulio Villani' 'Nigel Keith Watson' 'John Allan Wilson'] In this paper we present a novel, quadruple well process developed in a modern 0.18 μm…
Jiaju Ma, Dexue Zhang, Dakota Robledo, Leo Anzagira + 1 more
'Saleh Masoodian'] Superior low-light and high dynamic range (HDR) imaging performance with ultra-high pixel resolution are widely sought after in the imaging world. The quanta image sensor (QIS) concept was proposed in 2005 as the next paradigm in solid-state image sensors after charge coupled devices (CCD) and…
Ignacio Bravo, Javier Baliñas, Alfredo Gardel, José L. Lázaro + 2 more
'Felipe Espinosa' 'Jorge García'] This article describes an image processing system based on an intelligent ad-hoc camera, whose two principle elements are a high speed 1.2 megapixel Complementary Metal Oxide Semiconductor (CMOS) sensor and a Field Programmable Gate Array (FPGA). The latter is used to control the…
Jie Zhang, Jonathan Newman, Zeguan Wang, Yong Qian + 7 more
High-speed widefield fluorescence microscopy has the potential to capture biological processes with exceptional spatiotemporal resolution. However, conventional cameras suffer from low signal-to-noise ratio (SNR) at high frame rates, limiting their ability to detect faint fluorescent events. Here we introduce an image…
Kapil Jainwal
— 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 follower (SF) in an active pixel sensor (APS), which is a major component of the…
Richard Matthews, Matthew Sorell, Nickolas Falkner
Sensor pattern noise has been found to be a reliable tool for providing information relating to the provenance of an image. Conventionally sensor pattern noise is modelled as a mutual interaction of pixel non-uniformity noise and dark current. By using a wavelet denoising filter it is possible to isolate a unique…
Mikhail V. Konnik, James S. Welsh
In many applications, such as development and testing of image processing algorithms, it is often necessary to simulate images containing realistic noise from solid-state photosensors. A high-level model of CCD and CMOS photosensors based on a literature review is formulated in this paper. The model includes…
Zihan Yin, Md Abdullah-Al Kaiser, Lamine Ousmane Camara, Mark Camarena + 4 more
Neuromorphic image sensors draw inspiration from the biological retina to implement visual computations in electronic hardware. Gain control in phototransduction and temporal differentiation at the first retinal synapse inspired the first generation of neuromorphic sensors, but processing in downstream retinal…
Md Rahatul Islam Udoy, Shamiul Alam, Md Mazharul Islam, Akhilesh Jaiswal + 1 more
'Akhilesh Jaiswal' 'Ahmedullah Aziz'] Abstract— Digital pixel sensor (DPS) has evolved as a pivotal component in modern imaging systems and has the potential to revolutionize various fields such as medical imaging, astronomy, surveillance, IoT devices, etc. Compared to analog pixel sensors, the DPS offers high speed…
Zhaoning Zhang, Yujie Wang, Rafael Piestun, Zhen-Li Huang
With promising properties of fast imaging speed, large field-of-view, relative low cost and many others, back-illuminated sCMOS cameras have been receiving intensive attentions for low-light imaging in the past several years. However, due to the pixel-to-pixel difference of camera noises (called noise non-uniformity)…
Kangping Hu, Christopher E. Arcadia, Jacob K. Rosenstein
This paper presents a 100 × 100 super-resolution integrated sensor array for microscale electrochemical impedance spectroscopy (EIS) imaging. The system is implemented in 180 nm CMOS with 10 μm × 10 μm pixels. Rather than treating each electrode independently, the sensor is designed to measure the mutual capacitance…
Christopher E. Arcadia, Kangping Hu, Slava Epstein, Meni Wanunu + 2 more
Microorganisms account for most of the biodiversity on earth. Yet while there are increasingly powerful tools for studying microbial genetic diversity, there are fewer tools for studying microorganisms in their natural environments. In this paper, we present recent advances in CMOS electrochemical imaging arrays for…
Matthias Grotevent, Claudio U. Hail, Sergii Yakunin, Dominik Bachmann + 4 more
Infrared light detection enables diverse technologies ranging from night vision to gas analysis. Emerging technologies such as low-cost cameras for self-driving cars require highly sensitive, low-cost photodetector cameras with spectral sensitivities up to wavelength of 10 um. For this purpose, colloidal quantum dot…
Fabian Strauss, Zhouxiaosong Zeng, Kai Braun, Marcus Scheele
Transition metal dichalcogenides (TMDCs) exhibit favorable properties for optical communication in the GHz regime, such as large mobilities, high extinction coefficients and silicon compatibility. While impressive improvements of their sensitivity have been realized, the bandwidths of these devices have been mostly…
Rafael Almaraz, Thomas Sayer, Justin Toole, Rachelle Austin + 6 more
Hot carrier extraction occurs in 2D semiconductor photoelectrochemical cells [Austin et. al., PNAS, 2023, 120, e2220333120]. Boosting the energy efficiency of hot carrier-based photoelectrochemical cells requires maximizing the hot carrier extraction rate relative to the cooling rate. One could expect to tune the hot…