Publication

A novel cmos image sensor with event/change detection and reduced data redundancy

Giovanni De Micheli, Sandro Carrara, Gözen Köklü
2014
Patents

Abstract

A Digital Pixel Sensor (DPS) based CMOS camera configured to record frames and comprising an event detection sensor configured to look for an event happening in a determined frame, comprising an array of event detection pixels, a first reference voltage generator, first row and column arbiters, and first row and column address encoders; the DPS based CMOS camera further comprises a change detection sensor configured to look for a change happening in between frames, comprising an array of change detection pixels, a second binary search value generator, second row and column arbiters, and second row and column address encoders.

Official source

https://infoscience.epfl.ch/entities/publication/d013fec4-7acc-484e-9818-bdd51ff6ff91

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Giovanni De Micheli, Sandro Carrara, Gözen Köklü
2014
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d013fec4-7acc-484e-9818-bdd51ff6ff91

About this result

Related concepts (32)

Image sensor

An image sensor or imager is a sensor that detects and conveys information used to form an . It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of current that convey the information. The waves can be light or other electromagnetic radiation. Image sensors are used in electronic imaging devices of both analog and digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging equipment, night vision equipment such as thermal imaging devices, radar, sonar, and others.

Active-pixel sensor

An active-pixel sensor (APS) is an , which was invented by Peter J.W. Noble in 1968, where each pixel sensor unit cell has a photodetector (typically a pinned photodiode) and one or more active transistors. In a metal–oxide–semiconductor (MOS) active-pixel sensor, MOS field-effect transistors (MOSFETs) are used as amplifiers. There are different types of APS, including the early NMOS APS and the now much more common complementary MOS (CMOS) APS, also known as the CMOS sensor.

Smart camera

A smart camera (sensor) or intelligent camera (sensor) or (smart) vision sensor or intelligent vision sensor or smart optical sensor or intelligent optical sensor or smart visual sensor or intelligent visual sensor is a machine vision system which, in addition to image capture circuitry, is capable of extracting application-specific information from the captured images, along with generating event descriptions or making decisions that are used in an intelligent and automated system.

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A novel cmos image sensor with event/change detection and reduced data redundancy

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