A Retina-like Cmos Sensor and Its Applications
نویسندگان
چکیده
This paper describes the implementation in silicon of a retina-like sensor characterized by a space-variant resolution similar to that of the human retina. Besides the actual implementation using CMOS technology, the design peculiarities of retina-like sensors are compared with the use of software or hardware electronic remappers. The paper also describes the realization of a retina-like digital camera and its applications for realtime control and image transmission.
منابع مشابه
Image Sensors in Security and Medical Applications
This paper briefly reviews CMOS image sensor technology and its utilization in security and medical applications. The role and future trends of image sensors in each of the applications are discussed. To provide the reader deeper understanding of the technology aspects the paper concentrates on the selected applications such as surveillance, biometrics, capsule endoscopy and artificial retina. ...
متن کاملIsscc 2008 / Session 7 / Td: Electronics for Life Sciences / 7.4 7.4 Cmos Imager Technologies for Biomedical Applications
Apart from the ongoing debate about using CMOS active pixel sensors (APS) or CCD imagers for today’s consumer and commercial applications the emerging biomedical market presents new opportunities to CMOS APS. Prominent examples addressing distinct issues in life style and health care are the possibilities to restore vision through a sub-retinal CMOS imager implant and to fabricate a low-cost in...
متن کاملCMOS Image Sensor versus Retina Experience
This paper presents a comparison relating two different architectures dedicated for a vision system on chip. The first one implements a logarithmic CMOS imager and a microprocessor. The second involves the same processor with a CMOS retina which implements hardware operators and analog microprocessors. We have modeled two vision systems. The comparison is related to image processing speed, proc...
متن کاملA 2-D Velocity- and Direction-Selective Sensor with BJT-Based Silicon Retina and Temporal Zero-Crossing Detector
In this paper, a 2-D velocityand direction-selective visual motion sensor with a bipolar junction transistor (BJT)based silicon retina and temporal zero-crossing detector is proposed and implemented. In the proposed sensor, a token-based delay-and-correlate computational algorithm is adopted to detect the selected speed and direction of moving object images. Moreover, binary pulsed signals are ...
متن کاملGame Theory based Energy Efficient Hybrid MAC Protocol for Lifetime Enhancement of Wireless Sensor Network
Wireless Sensor Networks (WSNs) comprising of tiny, power-constrained nodes are getting very popular due to their potential uses in wide applications like monitoring of environmental conditions, various military and civilian applications. The critical issue in the node is energy consumption since it is operated using battery, therefore its lifetime should be maximized for effective utilization ...
متن کامل