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HDR Sensors for Embedded Vision

By Michael Tusch Founder and CEO Apical Limited At the late-March 2012 Embedded Vision Alliance Summit, Eric Gregori and Shehrzad Qureshi from BDTI presented a helpful overview of CCD and CMOS image sensor technology. I thought it might be interesting to extend this topic to cover so-called HDR (High Dynamic Range) / WDR (Wide Dynamic […]

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Gesture Recognition: Enabling Natural Interactions With Electronics

By Dong-Ik Ko (Lead Engineer, Gesture Recognition and Depth-Sensing) and Gaurav Agarwal (Manager, Gesture Recognition and Depth-Sensing) Texas Instruments This is a reprint of a Texas Instruments-published white paper, which is also available here (2.6 MB PDF). Introduction Over the past few years, gesture recognition has made its debut in entertainment and gaming markets. Now,

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The Analog Joystick: An Image Sensor-Plus-Accessory Combo Creates One That’s Slick

If you're not into videoconferencing but you're into gaming, researchers have come up with a clever alternative use for your smartphone's front-mounted camera. A rubberized accessory device mounted ahead of it, containing a patterned grid and able to let in sufficient light even with your finger on top of it, transforms the image sensor into

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Vision-Based Gesture Recognition: An Ideal Human Interface for Industrial Control Applications

By Brian Dipert Editor-In-Chief Embedded Vision Alliance Senior Analyst BDTI This article was originally published in Digi-Key's Microcontroller TechZone. An excerpt of it is reprinted here with the permission of Digi-Key. Embedded vision, the evolution and extrapolation of computer-based vision systems that process and interpret meaning from still and video images, is poised to be

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Image Sensor ISO: A ‘Where Does Noise Come From’ Tutorial Show

In the introductory essay to last Thursday's Embedded Vision Insights newsletter, and in speaking of Nokia's new cameraphone, I wrote: The Nokia 808 contains a 41 Mpixel image sensor (no, that's not a typo), notable not only for its high resolution but also for its relatively relaxed 1.4 um pixel pitch, the latter translating into

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Time Of Flight: Samsung’s New RGB Image Sensor Also Has Depth Sight

Kudos to EDN Magazine's Margery Conner for "tweeting" me a heads-up about a Samsung announcement at the recent ISSCC (International Solid State Circuits Conference), originally covered by Nikkei Business Publications' Tech-On! and later also picked up by Gizmodo, The Verge and TechCrunch. At first glance, the image sensor above may look like a convention Bayer-patterned

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Embedded Vision Alliance Conversation with Gene Frantz of Texas Instruments, Part One

Brian Dipert, Editor-In-Chief of the Embedded Vision Alliance, interviews Gene Frantz, Texas Instruments Principal Fellow. Gene, who has been with the company for nearly 40 years, did his early work with DSPs in association with the Speak & Spell speech synthesizer. In this two-part series, Gene and Brian discuss the history of the DSP both

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Embedded Vision Alliance Conversation with Gene Frantz of Texas Instruments, Part Two

Brian Dipert, Editor-In-Chief of the Embedded Vision Alliance, interviews Gene Frantz, Texas Instruments Principal Fellow. Gene, who has been with the company for nearly 40 years, did his early work with DSPs in association with the Speak & Spell speech synthesizer. In this two-part series, Gene and Brian discuss the history of the DSP both

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Gesture Recognition–First Step Toward 3D UIs?

by Dong-Ik Ko and Gaurav Agarwal Texas Instruments This article was originally published in the December 2011 issue of Embedded Systems Programming. Gesture recognition is the first step to fully 3D interaction with computing devices. The authors outline the challenges and techniques to overcome them in embedded systems. As touchscreen technologies become more pervasive, users

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A Six-By-Six Pixel Cluster: Fujifilm Take Another Stab At The Image Sensor

As I previously mentioned in a technical article published to the Embedded Vision Alliance site last August, the Bayer Pattern (named after Eastman Kodak's Bryce E. Bayer, its inventor) is by far the most common filter array pattern used with both CCDs and CMOS image sensors. Containing 50% green filters, 25% red filters and 25%

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