Title :
Resourcesat-2 image restoration for differential pulse code modulation compression artifacts
Author :
Pushpakar, Anurag ; Dube, Nitant ; Dhar, Debajyoti ; Ramakrishnan, R.
Author_Institution :
Space Applic. Centre, ISRO, Ahmedabad, India
Abstract :
Remote sensing satellites use onboard compression techniques to overcome the limited bandwidth and increasing data volume requirements of images. On-board compression using Differential Pulse Code Modulation (DPCM) is implemented for Resourcesat-2, LISS-3 and LISS-4 sensors. Implemented DPCM is a lossy compression and hence renders artifacts, when images are decompressed on ground. In this paper a technique for restoration of DPCM artifacts is proposed and its performance is evaluated using Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR). Proposed technique is used as part of operational data products generation software and sample results are shown.
Keywords :
artificial satellites; data compression; differential pulse code modulation; geophysical image processing; image coding; image restoration; image sensors; least mean squares methods; remote sensing; rendering (computer graphics); DPCM compression artifacts; LISS-3 sensor; LISS-4 sensor; MSE; PSNR; Resourcesat-2 image restoration; artifacts rendering; data volume requirements; differential pulse code modulation; image decompression; lossy compression; mean square error method; onboard compression technique; operational data products generation software; peak signal to noise ratio; remote sensing satellites; Conferences; Image coding; Image restoration; PSNR; Radiometry; Table lookup; Uncertainty; Artifact; Compression; DPCM; IRS; LISS-3; LISS-4; MSE; PSNR; RAD; RAW;
Conference_Titel :
Image Information Processing (ICIIP), 2013 IEEE Second International Conference on
Conference_Location :
Shimla
Print_ISBN :
978-1-4673-6099-9
DOI :
10.1109/ICIIP.2013.6707651
