NASA Technical Reports Server (NTRS) : Restoration pdf

NASA Technical Reports Server (NTRS) : Restoration

More Book Details

Description of the Book:

Missing data are a fairly common problem when restoring Hubble Space Telescope observations of extended sources. On Wide Field and Planetary Camera images cosmic ray hits and CCD hot spots are the prevalent causes of data losses, whereas on Faint Object Camera images data are lossed due to reseaux marks, blemishes, areas of saturation and the omnipresent frame edges. This contribution discusses a technique for ‘filling in’ missing data by statistical inference using information from the surrounding pixels. The major gain consists in minimizing adverse spill-over effects to the restoration in areas neighboring those where data are missing. When the mask delineating the support of ‘missing data’ is made dynamic, cosmic ray hits, etc. can be detected on the fly during restoration

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 1/1/1992
• Year: 1992
• Book Topics/Themes: NASA Technical Reports Server (NTRS), CAMERAS, CHARGE COUPLED DEVICES, FAINT OBJECT CAMERA, HUBBLE SPACE TELESCOPE, IMAGE RECONSTRUCTION, RESTORATION, DEFECTS, DISCOLORATION, INFERENCE, PIXELS, Adorf, Hans-Martin

An excerpt captured from the PDF book