A Biologically Inspired CMOS Image Sensor by Mukul Sarkar

By Mukul Sarkar

Biological structures are a resource of notion within the improvement of small independent sensor nodes. the 2 significant varieties of optical imaginative and prescient platforms present in nature are the one aperture human eye and the compound eye of bugs. The latter are one of the such a lot compact and smallest imaginative and prescient sensors. the attention is a compound of person lenses with their very own photoreceptor arrays. The visible approach of bugs permits them to fly with a constrained intelligence and mind processing strength. A CMOS photograph sensor replicating the notion of imaginative and prescient in bugs is mentioned and designed during this publication for commercial (machine imaginative and prescient) and clinical purposes.

The CMOS steel layer is used to create an embedded micro-polarizer capable of experience polarization details. This polarization details is proven to be helpful in purposes like actual time fabric class and self sustaining agent navigation. additional the sensor is supplied with in pixel analog and electronic thoughts which permit edition of the dynamic diversity and in-pixel binarization in actual time. The binary output of the pixel attempts to copy the flickering impression of the insect’s eye to realize smallest attainable movement according to the switch in kingdom. An in-built counter counts the adjustments in states for every row to estimate the course of the movement. The chip involves an array of 128x128 pixels, it occupies a space of five x four mm2 and it's been designed and fabricated in an 180nm CMOS CIS approach from UMC.

Show description

Read or Download A Biologically Inspired CMOS Image Sensor PDF

Best graphics & visualization books

Mac OS X Version 10.2 Jaguar Fast & Easy

Chill out. studying how one can use Mac OS X 10. 2 is now a breeze. utilizing this e-book as your advisor, you will grasp its many good points very quickly. From the fundamentals of folders and records to handling a number of clients, this e-book covers every thing you must wake up and operating speedy with the most recent model of this renowned working procedure.

Macworld DVD Studio Pro bible

The DVD StudioPro Bible is the authoritative and finished advisor developing professional-quality DVDs utilizing Apple's progressive new killer app, DVD Studio professional. This publication good points simply obtainable info for newbies (including a QuickStart for instant results), complex suggestions and methods for execs, and large specialist insights all through from DVD getting to know pros.

Analysis and Interpretation of Range Images

Computing device imaginative and prescient researchers were pissed off of their makes an attempt to immediately derive intensity info from traditional two-dimensional depth photos. learn on "shape from texture", "shape from shading", and "shape from concentration" continues to be in a laboratory degree and had no longer visible a lot use in advertisement computer imaginative and prescient structures.

Extra resources for A Biologically Inspired CMOS Image Sensor

Example text

Each storage cell has several closely spaced electrodes (gates) on top, separated from the silicon by an insulating layer of silicon dioxide. By applying a coordinated sequence of clock pulses to all the electrodes in the array, the charges accumulated are transported from one capacitor to the next until it reaches the output node where the charges are converted into voltage and measured. CCDs however have several disadvantages. CCDs requires a manufacturing process which is different to that used for manufacturing memories and other processors.

E. straight lines in space are not imaged as straight line unless passing through the center. Image mapping is limited by the nonlinearities of the optical system. Image mapping is defined as the direct correspondence of the image at the pixel and the viewing direction. A high resolution image can be obtained from the set of low resolution images by pixel rearranging. However it is important to remove the photometric and geometric nonlinearities before trying to rearrange the sub-images pixels on the virtual image.

An insect eye-based image sensor with large field of view. In: Proceedings of SPIE, vol. 7716, pp. : Plane based self calibration of radial distortion. In: Proceedings of International Conference on Computer Vision, pp. : An image restoration approach for artificial compound eyes. In: Proceedings of Electronic Imaging SPIE, vol. 6812, pp. : An efficient and accurate camera calibration technique for 3d machine vision. In: Proceedings of Conference on Computer Vision and Pattern Recognition, pp.

Download PDF sample

Rated 4.74 of 5 – based on 38 votes