Infrared Imaging Abstracts for 1993-1995
The following Abstracts of journal literature and patent specifications are taken, with kind permission, from Imaging Abstracts, published by Pira International on behalf of The Royal Photographic Society of Great Britain.
The abstracts are Copyright © 1997-2003 Pira International on behalf of the RPS. Original documents are in English unless otherwise stated. For further information on Imaging Abstracts, which is available on paper, online and on CD-ROM, contact Pira International or email email@example.com.
An Evaluation of a Region-Growing Algorithm Performing Detection for Automatic Target Recognition
Kitrosser J H (US Department of the Army)
The Night Vision and Electronic Sensors Directorate of the U.S. Army has evaluated a system using infrared radiation for the detection and subsequent classification of target-like objects. The principles underlying the process, its mode of action, and the manner in which it can be usefully employed, are discussed. 16 refs.
Kinetics of Crystallization of Ge-As-Te Amorphous Films Induced by Heating and Laser Radiation
Turyanitsa I I, Tsigika V V, Mar'yan M I, Il'chenko A I, Lukich S
(Uzhgorod State University)
In the design of infra-red sensitive materials containing tellurium it is necessary to understand the rate at which the amorphous phase transforms into the crystalline phase since this causes deterioration of the recording characteristics. This paper describes work performed on Ge-As-Te layers to study the transformations caused by both heat and pulsed infra-red radiation on the amorphous and crystalline structures. 8 refs.
Dual-band Infrared Imaging for Concrete Bridge Deck Inspection
Durbin P, Del Grande N (Lawrence Livermore National Laboratory)
A description is given of the way in which dual-band infrared (DBIR) imaging methods have been used for the detection and study of underground bodies, such as mines and archaeological structures, as well as in the search for aeroplane frame defects and for the inspection of concrete highways and bridges. The methods are described in which radiation of wavelengths 3 to 5, and 8 to 12, µm were employed. DE 94007126/GAR.
Anon (NERAC Inc Tolland USA)
A bibliography is presented containing at least 78 references derived from the INSPEC (Information Services for the Physics and Engineering Communities) data base concerning infrared cameras and their applications in technology. Topics included are their usage in deformation studies and temperature measurement, and the monitoring of the heating effect of radio frequency applicators. PB95-850541/GAR.
The Deeper Picture
Burnstock A (Courtauld Institute of Art London GB)
A wide variety of techniques has been employed to examine works of art, partly to investigate their genuineness, and partly to aid in their restoration. A summary is given with examples, of the more important methods employed, emphasis being placed on radiography and infrared reflectography. 8 refs.
Patent: Infrared Imaging Methods
Robillard J J (The University of Texas Systems)
An infrared sensitive material is described which consists of a polymeric semiconductor compound capable of absorbing an infrared signal; this compound is cross-linked with a spiropyran which is able to produce a visible absorption band. The material is exposed imagewise to infrared radiation, so that a variable birefringence and variable absorption are provided in the visible region, these being a function of the infrared radiation received. A visible image is produced in this manner.
Anon (NERAC Inc Tolland USA)
A bibliography of at least 205 references has been compiled from the U.S. Patent Bibliography File relating to patent specifications which concern the equipment employed and the methods used in infrared imaging technology. The design, construction and calibration of imaging systems, as well as methods of sensing, storage and conversion, are included; in addition, the uses of such images in eye examination and in aerial reconnaissance are covered. However, references to specifications concerning infrared detectors are excluded.
A Kind of New Material Usable in Infrared Streak Cameras
Ping G, Xun H (Adademia Sinica Xian)
A novel material has been formulated for electron trapping infrared "up-conversion", and consequent use in an infrared streak camera; details are provided of its response to infrared radiation over a wide range (0.8 to 1.6 µm), and it can provide a quantum efficiency as high as 66%. Information is also available of the time resolution of which it is capable, and its efficiency for energy conversion.
Documentation for the Semi-Automated Mesoscale Analysis System 1.2
Peckinpaugh S H (Stennis Space Center)
Satellite infrared observations over the Gulf Stream region of the northern Atlantic Ocean have produced imagery whose analysis and interpretation have been investigated. The modules developed form the Semi-Automated Mesoscale Analysis System (SAMAS), and details are given concerning its nature, and the methods of making use of it. AD-A294 261/3GAR.