3-D Adaptive Sparsity Based Image Compression With Applications to Optical Coherence Tomography.
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- Record sourced from PubMed, PMID 25561591.
- Also identified by DOI 10.1109/TMI.2014.2387336 and PMC identifier 4490145.
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Abstract
We present a novel general-purpose compression method for tomographic images, termed 3D adaptive sparse representation based compression (3D-ASRC). In this paper, we focus on applications of 3D-ASRC for the compression of ophthalmic 3D optical coherence tomography (OCT) images. The 3D-ASRC algorithm exploits correlations among adjacent OCT images to improve compression performance, yet is sensitive to preserving their differences. Due to the inherent denoising mechanism of the sparsity based 3D-ASRC, the quality of the compressed images are often better than the raw images they are based on. Experiments on clinical-grade retinal OCT images demonstrate the superiority of the proposed 3D-ASRC over other well-known compression methods.
Medical subject headings
- Imaging, Three-Dimensional
- Retina
- Tomography, Optical Coherence