The lossy compression technique based on KLT

P. Páta; M. Řeřábek

doi:10.1117/12.787774

16 July 2008 The lossy compression technique based on KLT

P. Páta, M. Řeřábek

Proceedings Volume 7019, Advanced Software and Control for Astronomy II; 701933 (2008) https://doi.org/10.1117/12.787774
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

A higher and better precision can been achieved while using more recent observation techniques and superior detection sensors. It has brought a very rapid increase of data amount as a result. The high spatial resolution (up to ten million pixels) and a high bit level grey scale images (quantization depth up to 16 bits) are used in astronomy and other scientific applications. A very large volume of image data has been taken during operation of a modern project of automatic (i.e. robotic) sky observation systems. The coder based on the Karhunen-Loeve transform (KLT) has been chosen for astronomical image compression in this paper. The astrometry and photometry measurements have confirmed a possibility of the coder blocks arrangement with production of an accepted error and a sophisticated data stream.

Citation Download Citation

P. Páta and M. Řeřábek "The lossy compression technique based on KLT", Proc. SPIE 7019, Advanced Software and Control for Astronomy II, 701933 (16 July 2008); https://doi.org/10.1117/12.787774

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