Context-Aware Image Compression.
Where this comes from
- Record sourced from PubMed, PMID 27367904.
- Also identified by DOI 10.1371/journal.pone.0158201 and PMC identifier 4930214.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
We describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals. With this coding operation, the data can be downsampled at a lower rate than without it. In contrast to previous implementation of the warped stretch compression, here the decoding can be performed without the need of phase recovery. We present rate-distortion analysis and show improvement in PSNR compared to compression via uniform downsampling.
Medical subject headings
- Data Compression
- Image Processing, Computer-Assisted