Efficient storage and transmission of ladar imagery.
We develop novel methods for compressing volumetric imagery that has been generated by single-platform (mobile) range sensors. We exploit the correlation structure inherent in multiple views in order to improve compression efficiency. We show that, for lossless compression, three-dimensional volumes compress more efficiently than two-dimensional (2D) images by a factor of 60%. Furthermore, our error metric for lossy compression suggests that accumulating more than nine range images in one volume before compression yields as much as a 99% improvement in compression performance over 2D compression.
Dagher
Joseph C
JC
Optical Sciences Center and the Department of Electrical and Computer Engineering, The University of Arizona, Tucson, Arizona 85721, USA. joseph@ece.arizona.edu
Marcellin
Michael W
MW
Neifeld
Mark A
MA