In this paper, a smart image sensor for real-time and high-resolution three-dimensional (3-D) measurement to be used for sheet light projection is presented. It realizes not only a sufficiently high frame rate for real-time 3-D measurement, but also high pixel resolution due to a small pixel circuit and high subpixel accuracy due to gravity center calculation using an intensity profile. Simulat...

A three-dimensional multi-stage optical interconnection network is proposed for mussively purullel processors. The interconnection network employs beamsteering vertical cavity surface-emitting lasers FCSEL) as space-division switching elements, and micromachined micro-Fresnel lenses as free-space optical elements. The entire switching network is integrated on a Si chip using the free-space micr...

Fully integrated imaging receivers present a method of low power free-space optical communication with advantages over radio frequency and single element optical communication for a variety of network scenarios. This paper discusses the theoretical performance of such receivers and the design of a single “smart pixel” for use in a 2.5 Mbps integrated CMOS imaging receiver. The receiver has a si...

Since active pixel sensors (APS) are fabricated in a commonly used CMOS process, image sensors with integrated “intelligence” can be designed. These sensors are very useful in many scientific, commercial and consumer applications. Current state-of-the-art CMOS imagers allow integration of all functions required for timing, exposure control, color processing, image enhancement, image compression...

A low power smart vision system based on a large format (currently IKxIK) active pixel sensor (APS) integrated with a programmable neural processor for fast vision applications is presented. The concept of building a low power smart vision system is demonstrated by a system design which is composed with an APS sensor, a smart image window handler, and a neural processor. The paper also shows th...

This Security and authentication are the two important criteria for any industrial product controlled through electronics. Microcontrollers interfacing along with electronic circuits, Controls various aspects of industry equipment. One among them is the communication and transfer of data between the equipment. In certain situations a need arises to secure the data and a proper authentication is...

T HE articles contributed to this Special Section on Smart Sensors were inspired by the papers presented at the 2005 IEEE International Symposium on Circuits and Systems (ISCAS). The growing field of " smart sensors " caught our attention and prompted discussion on a Special IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS—I: REGULAR PAPERS issue dedicated to this important topic. Recent research has ...