Showing papers on "Smart camera published in 1986"

Low Cost Smart Camera

Abstract: A simple concept for extracting relevant digital data from an image is described. It is based on a very flexible form of sub-sampling and is well suited to a low cost implementation of a smart camera. A prototype camera which has been built is described together with a few applications in metrology, motion detection and bar code reading.

Rapid hidden feature elimination using an octree

Abstract: A hidden feature elimination algorithm based on ray tracing through an octree is presented. The algorithm has been used in a model-based vision system for a robot which services numerically controlled machine tools in an automated factory. It determines which features of an object are visible from a given camera location. This prediction is used by the model-based vision system to keep the 3-D world model as close as possible to reality. Finally the effect of the resolution limitations of the octree on the algorithm is discussed.

New Generation Gated Intensified Camera

Abstract: This paper describes the techniques and concepts used in the development and construction of a gated, intensified, solid state video camera. This state-of-the-art camera provides submicrosecond image capture with excellent resolution and minimal blooming. The paper addresses the technical and practical considerations which drove the camera design and which affect the value of this instrument for both observation and measurement applications. The sensor is based on a gated, custom-designed, microchannel plate intensification of a C.I.D. (Charge Injection Device), self-scanning imaging array. The sensor operates in the visible and near-infrared (IR) spectrum, and is capable of full bandwidth image capture at sub-microsecond speeds. It can be operated in a truly asynchronous random event mode, while maintaining a standard NTSC output format. The camera is described in terms of its architecture, physical structure, application, performance and design characteristics.

Nondestructive thermal analysis with portable pyroelectric television camera

Abstract: Pyroelectric Vidicons have been commercially available for approximately fifteen years. Approximately 10 years ago I.S.I. Group, Inc. began manufacturing a television camera system incorporating the Pyroelectric Vidicon tube. Until this time most systems had been custom fabricated, for a specific application. The early camera systems were large, bulky, and difficult to use. These initial camera designs were updated to make them more user oriented and to generally simplify their operation. The original Thermal Imaging systems were comprised of a camera head, (which incorporates the tube), a camera control unit, (which incorporates all the necessary control electronics), separated by a camera control cable. These systems found many different applications, but had been restricted to areas where 110 Volt, 60Hz AC power was available. Within the past few years a new camera system has been developed. This camera system is completely portable, battery powered, and light weight. This camera systems now permits thermal analysis in areas that are remotely located. These camera systems produce images which are displayed on standard television equipment. No coolant is required to cool the detector. These camera systems respond only to thermal energy radiated by an object and no signal is produced by visible light.