Processing astronomical images from space
β Scribed by B.R. Martin; E. Dunford
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 568 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0010-4655
No coin nor oath required. For personal study only.
β¦ Synopsis
Since the 1960's the Science & Engineering Research Council has been actively concerned with supporting the British Space Programme. One aspect of this support has been large scale data processing of data from artificial satellites; in particular satellites used for research in various fields of astronomy. In order to carry out this work considerable use has been made of large mainframe computers, specialist machines such as the AP 120B vector processor, and more recently some studies have been carried out associated with how the ICL DAP might support image processing aspects of the Space Programme. The paper will discuss several satellite projects including the British Ariel series, the International Ultraviolet Explorer (IUE), the Infra-Red Astronomical Satellite (IRAS) and the Voyager Planetary mission. Some details will be given of the image restoration techniques that were developed at Chilton, on an IBM 360/195 computer, to support the IUE project and indications will be given as to how this work might have been carried out had a truly parallel processing device, such as the ICL DAP been available at the time. The main theme of the talk will be the high degree of parallelism that exists in processing astronomical images.
π SIMILAR VOLUMES
## Abstract Multiresolution transforms, including a wavelet transform, are applied simage visualization, image restoration, filtering and compression, Γ object detection. Variance stabilization is used, when appropriate, cater for common astronomical image noise models. We discuss idation of such m
As opposed to strong light signals (> 10' photons mm-' s-'), the construction of images from object sources with low level signals (< 10' photonsmrn-'s-') involves a probabilistic transfer-or point-spread function. The resulting images carry considerable uncertainty or spread, restricting resolution