Abstract
As part of the Rosetta mission, the surface science package, which will land on the nucleus of the comet 46P/Wirtanen, includes a stereoscopic imaging instrument CIVA-P. The data volume required by the scientific objectives and the limited capability of the telemetry imposes the use of image-loss compression techniques. We study the influence of the losses due to compression on the three-dimensionnal surface reconstruction. We prove that the best strategy consists in compressing both the left and right images with the same ratio, transmitting them and finally applying on Earth the stereoscopic calculation on the decompressed images. We also prove that the compression ratio imposed by the telemetry (1:10) allows a good reconstruction when this strategy is applied.
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Schedule a callMore From: Comptes Rendus de l'Academie des Sciences Series IIB Mechanics Physics Astronomy
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