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Exotic Photodetector News
Infineon Posts Chart Explaining ToF Camera Design Tasks
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Infineon publishes a chart explaining 3D camera design tasks beyond a ToF sensor:NHK Presentation on 8K Organic Sensor Camera
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NHK presented its organic image sensor-based camera for 8K TV broadcast (2019 presentation):Canon Presents X-Ray Sensor With Auto-Exposure Control
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Canon announces the new "Built-in AEC assistance" technology for digital radiography. With this technology, the device's X-ray image sensor uses real-time detection of the pixel value corresponding to emitted X-rays, notifying the X-ray generator when pixel value reaches a preset value.Samsung Presents AI-based Bad Pixel Detection
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Springer publishes a Samsung paper presented at 2020 International Conference on Computer Vision and Image Processing "A Pre-processing Assisted Neural Network for Dynamic Bad Pixel Detection in Bayer Images" by Girish Kalyanasundaram, Puneet Pandey, and Manjit Hota.ISSCC 2021 On-Line: Samsung ISOCELL Vizion 33D Paper
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Samsung ISOCELL Vizion presentation at ISSCC 2021 details the company iToF approach: "7.1 - A 4-tap 3.5μm 1.2Mpixel Indirect Time-of-Flight CMOS Image Sensor with Peak Current Mitigation and Multi-User Interference Cancellation" by Min-Sun Keel, Daeyun Kim, Yeomyung Kim, Myunghan Bae, Myoungoh Ki, Bumsik Chung, Sooho Son, Hoyong Lee, Heeyoung Jo, Seung-Chul Shin, Sunjoo Hong, Jaeil An, Yonghun Kwon, Sungyoung Seo, Sunghyuck Cho, Youngchan Kim, Young-Gu Jin, Youngsun Oh, Yitae Kim, JungChak Ahn, Kyoungmin Koh, and Yongin Park.
I'm not sure what 33D means in the presentation:
ISSCC 2021 On-Line: Sony Sensor with Integrated AI Processor
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Sony ISSCC presentation "9.6 - A 1/2.3inch 12.3Mpixel with On-Chip 4.97TOPS/W CNN Processor Back-Illuminated Stacked CMOS Image Sensor" by Ryoji Eki, Satoshi Yamada, Hiroyuki Ozawa, Hitoshi Kai, Kazuyuki Okuike, Hareesh Gowtham, Hidetomo Nakanishi, Edan Almog, Yoel Livne, Gadi Yuval, Eli Zyss, and Takashi Izawa explains the trade-offs of such a product:GPixel Presents its Pipelined Readout Scheme
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LiDAR Technology Map
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EETimes reporter Junko Yoshida publishes an article "Lidar Sweepstakes Draws 15 RFQs, But No Frontrunner."XFAB Presents Photodiode Improvements, Reports 20% Smartphone ALS Market Share
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Rudolf Schwarte, Father of Photonic Mixer Device, Died at the Age of 82
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University of Siegen, Germany, and the Center for Sensor Systems (ZESS) mourn for Prof. Dr. Rudolf Schwarte death on March, 7, 2021, at the age of 82.
Call for Nominations for the 2021 Walter Kosonocky Award
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International Image Sensor Society Call for Nominations for the 2021 Walter Kosonocky Award for Significant Advancement in Solid-State Image Sensors:The Walter Kosonocky Award is presented biennially for THE BEST PAPER presented in any venue during the prior two years representing significant advancement in solid-state image sensors. The award commemorates the many important contributions made by the late Dr. Walter Kosonocky to the field of solid-state image sensors. Personal tributes to Dr. Kosonocky appeared in the IEEE Transactions on Electron Devices in 1997.
Founded in 1997 by his colleagues in industry, government and academia, the award is also funded by proceeds from the International Image Sensor Workshop. (See International Image Sensor Society’s website for detail and past recipients)
The award is selected from nominated papers by the Walter Kosonocky Award Committee, announced and presented at the International Image Sensor Workshop (IISW), and sponsored by the International Image Sensor Society (IISS). The winner is presented with a certificate, complementary registration to the IISW, and an honorarium.
Please send us an email nomination for this year's award, with a pdf file of the nominated paper (that you judge is the best paper published/ presented in calendar years 2019 and 2020) as well as a brief description (less than 100 words) of your reason nominating the paper. Nomination of a paper from your company/ institute is also welcome.
Yet Another Auto-Generated Image Sensor Paper
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MDPI publishes a paper "Human Body-Related Disease Diagnosis Systems Using CMOS Image Sensors: A Systematic Review" by Suparshya Babu Sukhavasi, Susrutha Babu Sukhavasi, Khaled Elleithy, Shakour Abuzneid, and Abdelrahman Elleithy from University of Bridgeport, CT, and William Paterson University, NJ. This time, the authors were pretty open about the process how this paper has been generated:Yet Another Auto-Generated Image Sensor Paper
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MDPI publishes a paper "Human Body-Related Disease Diagnosis Systems Using CMOS Image Sensors: A Systematic Review" by Suparshya Babu Sukhavasi, Susrutha Babu Sukhavasi, Khaled Elleithy, Shakour Abuzneid, and Abdelrahman Elleithy from University of Bridgeport, CT, and William Paterson University, NJ. This time, the authors are pretty open about the process of the paper creation:ISSCC 2021 Presentations On-Line: Mojo Vision’s Augmented-Reality Smart Contact Lens
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One of the most inspiring presentations at ISSCC 2021 is Mojo Visions "34.2 - A 21pJ/frame/pixel Imager and 34pJ/frame/pixel Image Processor for a Low-Vision Augmented-Reality Smart Contact Lens."Strategy Analytics: Market Share Gap between Sony and Others is Shrinking
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BusinessWire. Strategy Analytics publishes the report “Smartphone Image Sensor Market Share Q4 2020: Sony Takes Top Spot But Sees Drop in Share:”Unispectral Announces IR Spectral Camera
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Unispectral launches its new Monarch spectral IR camera. Monarch is said to be the first low-SWaP (size, weight & power) spectral camera on the market, suitable for immediate use or by integration in OEM platforms or application developers.Smartsens Unveils 4MP 2.9um Pixel Sensor from AI Family
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Mass Market SWIR Spectroscopy is Coming?
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TI publishes a video showing the difference in SWIR spectra between different foods:Quantum Dot Phototransistor for Neuromorphic Sensor
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Nature publishes a paper "A flexible ultrasensitive optoelectronic sensor array for neuromorphic vision systems" by Qian-Bing Zhu, Bo Li, Dan-Dan Yang, Chi Liu, Shun Feng, Mao-Lin Chen, Yun Sun, Ya-Nan Tian, Xin Su, Xiao-Mu Wang, Song Qiu, Qing-Wen Li, Xiao-Ming Li, Hai-Bo Zeng, Hui-Ming Cheng & Dong-Ming Sun from Institute of Metal Research, Chinese Academy of Sciences, Hefei University of Science and Technology of China, Nanjing University of Science and Technology, ShanghaiTech University, Shenyang Northeastern University, Nanjing University, Suzhou Institute of Nano-Tech and Nano-Bionics, and Tsinghua University.ISSCC 2021 Presentations On-Line: Sony FF Sensor with Sigma-Delta ADC
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It appears that all ISSCC 2021 videos, slides, and demos are available at underline.io site after a free registration. According to ISSCC, the presentation at Underline site are available till the end of March.IISW 2021 Announces the First Invited Paper
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International Image Sensor Workshop 2021 announces a name of the first invited paper: “Sensor Design Parameters Affecting Automotive Machine Vision” by Gabriel Bowers, Image Path Architect and Strategy at Mobileye.Almalence Extends its Superresolution Mode to Video
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Almalence publishes a demo of its SuperResolution and SNR boost in real-time at video frame rates:Ametek 1MP 76,000fps Sensor Whitepaper
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Ametek Vision Research publishes a white paper "Understanding How A BSI Sensor Has Advanced High-Speed Imaging" about 1280x720 pixel 76,000fps device powering TMX series of cameras. Few quotes:The density of ADC on the new sensor did create power management and electrical crosstalk challenges, which were solved with the help of our design and integrated production partner, Forza Silicon.
...testing of early designs revealed a higher level of ADC crosstalk in both normal imaging and binning modes than our simulation tools had predicted, causing noticeable artifacts in the images. Forza engineers discovered that the crosstalk exhibited predictable patterns and developed modeling techniques that helped us eliminate the crosstalk altogether, which in turn mitigated imaging artifacts."
Ametek 1MP 76,000fps Sensor Whitepaper
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Ametek Vision Research publishes a white paper "Understanding How A BSI Sensor Has Advanced High-Speed Imaging" about 1280x720 pixel 76,000fps device powering TMX series of cameras. Few quotes:The density of ADC on the new sensor did create power management and electrical crosstalk challenges, which were solved with the help of our design and integrated production partner, Forza Silicon.
...testing of early designs revealed a higher level of ADC crosstalk in both normal imaging and binning modes than our simulation tools had predicted, causing noticeable artifacts in the images. Forza engineers discovered that the crosstalk exhibited predictable patterns and developed modeling techniques that helped us eliminate the crosstalk altogether, which in turn mitigated imaging artifacts."
Photon Pressure Detector Array
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Science Advances publishes a paper "On-chip torsion balances with femtonewton force resolution at room temperature enabled by carbon nanotube and graphene" by Lin Cong, Zi Yuan, Zaiqiao Bai, Xinhe Wang, Wei Zhao, Xinyu Gao, Xiaopeng Hu, Peng Liu, Wanlin Guo, Qunqing Li, Shoushan Fan, and Kaili Jiang from Tsinghua University, Beijing Normal University, Beihang University, No. 58th Research Institute of China Electronics Technology Research Group Corporation, Frontier Science Center for Quantum Information, and Nanjing University of Aeronautics and Astronautics. The paper presents a 4 x 4 array detecting photon pressure:LiDAR News: Elmos, Ommatidia, Intel, Valeo, Scantinel, Luminar
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Elmos presents its solutions for LiDAR, including laser driver and SPAD imager:
Elmos 2019 presentation shows the company's SPAD sensor:
Ommatidia presents its lightfield sensor for high-resolution long-range 3D imaging:
EPIC meeting on LiDAR applications features a presentation about Intel FMCW LiDAR:
Valeo presents its short range wide VFoV AMCW LiDAR:
Scantinel presents its prototype FMCW product:
TI Presents a Simplistic ToF System
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TI publishes a video "Intro to high speed comparators: ToF distance measurements with LVDS comparator" presenting an ultra-simple ToF system:Quantum Dot Galore
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SID Display Week 2021 has a special session devoted to quantum dot imagers:- 66.1 - High Resolution Quantum Dot Global Shutter Imagers
Jonathan Steckel, Eric Mazaleyrat, Krysten Rochereau - ST Microelectronics Grenoble France
Andras Pattantyus-Abraham - ST Microelectronics Santa Clara CA US
Emmanuel Josse - ST Microelectronics Crolles France
QD imagers cover visible to SWIR wavelengths at high resolution, high efficiency, and low dark currents. They promise to significantly increase the now small SWIR-imaging market by means of 100-1000X lower prices. Market opportunities include mobile devices, single point spectrometry, hyperspectral imaging, machine vision, and advanced driver assistance systems. - 66.2 - Invited Paper: QD-Based Sensors for Infrared Imaging
Pawel Malinowski, Jiwon Lee, Epimitheas Georgitzikis, Vladimir Pejovic, Itai Lieberman, TungHuei Ke, Yunlong Li, Tom Verschooten, Steven Thijs, David Cheyns
imec Leuven Belgium
Quantum dot absorbers promise efficient photodetector components with sensitivity peak tunability. We describe monolithic integration of quantum dot stacks into infrared imagers with pixel pitch smaller than 2 um and sensitivity in the short-wavelength infrared (SWIR). This approach enables very high pixel densities leading to compact and accessible infrared camera systems. - 66.3 - Invited Paper: Colloidal QD Photodetectors for Large Format NIR, SWIR, and Extended SWIR Sensor Arrays
Ethan Klem, Christopher Gregory, Jeffery Hilton
SWIR Vision Systems Durham NC US
An overview of our approach to fabricating QD focal plane arrays, will describe recent results achieving Vis-SWIR and extended wavelength SWIR sensitivity with spectral response from 350 nm to 2100 nm at HDTV resolutions of 1920x1080. Imaging demonstrations of these sensors in a variety of applications are presented. - 66.4 - Invited Paper: Graphene Enhanced QD Image Sensor Technology
Tapani Ryhänen - Emberion CTO Espoo Finland
Mark Allen - Emberion Director Cambridge United Kingdom
Alexander Bessonov - Emberion Chief Scientist Cambridge United Kingdom
Combining colloidal quantum dots and graphene along with optimization of the measurement principles using CMOS read-out integrated-circuits according to the requirements of these nanomaterials achieves imaging devices with photoresponse from 400 nm to 2100 nm, having low noise at high frame rates. - 66.5 - Invited Paper: Colloidal Quantum Dots: A Material Platform for Highly Sensitive Photodetectors and High Quantum Efficiency Light Emitters in the SWIR
Gerasimos Konstantatos
ICFO Castelldefels Spain
High performance SWIR photodetectors are achieved based on the synergism of colloidal quantum dots and 2D materials, including graphene and TMD semiconductors. Also high efficiency infrared QD-LEDs with high radiance and exceptional stability were developed. Finally measured tunable stimulated emission at high gains paves the way towards infrared QD lasers.
ST ToF PC User Detection
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ST keeps finding creative use cases for its ToF sensors: