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The fields of image analysis, computer vision, and artificial intelligence all make use of descriptions of shape in grey-level images. Most existing algorithms for the automatic recognition and classification of particular shapes have been devel oped for specific purposes, with the result that these methods are often restricted in their application. The use of advanced and theoretically well-founded math ematical methods should lead to the construction of robust shape descriptors having more general application. Shape description can be regarded as a meeting point of vision research, mathematics, computing science, and the application fields of image analy sis, computer vision, and artificia...
The broadening of interest in parellel computing and transputers is reflected in this text. Topics covered include: concurrent programming; graphics and image processing; and robotics and control. It is based on the proceedings of the 6th Australian Transputer and Occam User Group.
Fundamental unsolved problems of stellar astrophysics include the effects of angular momentum on stellar structure and evolution, the nature and efficiency of the processes by which angular momentum is redistributed within and lost from stars, and the role that stellar rotation plays in enhancing or driving stellar mass loss. There appears to be a qualitative change in the nature and efficiency of these mechanisms near spectral type FO: hotter (more massive) stars typically retain more angular momentum at least until they reach the main sequence, while cooler stars typically spin down quickly. For the hotter stars, recent work suggests a strong link between the type of pulsation behavior, th...
This book is the result of a special workshop on Spatial Computing which brought together experts in computer vision, visualization, multimedia and geographic information systems to discuss common problems and applications. The common theme of the workshop was the need to integrate human perception and domain knowledge with developing representations and solutions to problems which necessarily involve the interpretation of sensed data. The overwhelming conclusion was that these different areas of spatial computing should be communicating more than is done at present and that such workshops and publications would help this process. Contents:Foreword (T Caelli et al.)Bayesian Paradigms in Imag...
A more trusted environment for the management and use of health information would undoubtedly help to consolidate and accelerate the use of health informatics solutions as change mechanisms to drive the establishment and adoption of new models of care, as well as new technology-oriented healthcare processes. This book presents 35 papers from the Australian National Health Informatics Conference (HIC 2012), held in Sydney, Australia, in July and August 2012. The theme of the conference is aeHealth Informatics - Building a Healthcare Future Through Trusted InformationAE, and emphasizes the importance of assuring the integrity and security of health data and communications. The papers range fro...
Telehealth -- the delivery of health services and clinical information from a distance -- has reached new levels with the communication revolution of the last decade: consumer videoconferencing, mobile devices, high bandwidth infrastructure and close range wireless sensor networks have made many advances possible in the field. New specialized clinical applications and markets have also emerged. These include tele-homecare, tele-rehabilitation and tele-emergency, surveillance and disaster response, while ideas which once seemed futuristic, such as tele-procedures and tele-surgery, are now seen as being within the realms of possibility. This book contains selected papers from the 2010 Global T...
A more trusted environment for the management and use of health information would undoubtedly help to consolidate and accelerate the use of health informatics solutions as change mechanisms to drive the establishment and adoption of new models of care, as well as new technology-oriented healthcare processes. This book presents 35 papers from the Australian National Health Informatics Conference (HIC 2012), held in Sydney, Australia, in July and August 2012. The theme of the conference is ‘Health Informatics - Building a Healthcare Future Through Trusted Information’, and emphasises the importance of assuring the integrity and security of health data and communications. The papers range f...
ROSAT Observations G. HASINGER Max-Planck-Institut flir extraterrestrische Physik, D-85740 Garching, Germany Abstract. This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a 2 density in excess of 400 deg- at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed ...
A review of the new subject of extragalactic stellar astrophysics - for both graduate students and researchers working in astrophysics.
Massive stars occupy an exceptional place in general astrophysics. They trigger many if not all of the important processes in galactic evolution whereas due to their intrinsic brightness, they offer the (only until now) possibility to study the stellar content and stellar behaviour in distant galaxies. The last, say, 25 years, massive stars have been the subject of numerous meetings discussing the influence of massive stars on population synthesis, the number distribution of different types of massive stars, the LBV phenomenon, WR stars, X-ray binaries, stellar winds in massive stars, chemical pecularities in massive stars, supernova explosions of massive stars and the important SN1987A even...