2017
DOI: 10.15761/bem.1000114
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Medical image compression framework based on compressive sensing, DCT and DWT

Abstract: In this paper, CS based medical images compression framework has been presented. The discrete cosine transform (DCT) as well as discrete wavelet transform (DWT) have been used for finding the sparsity in the medical images. The comparison of the results obtained by combining DCT and DWT with CS for medical images-CT and MRI-has been presented.The CS & DWT compression scheme achieved a maximum compression ratio (CR) of 3.01 with PSNR of 31.6732 dB and average CoC value of 0.9983 for an MRI image, whereas for CT… Show more

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Cited by 5 publications
(3 citation statements)
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“…In terms of time complexity, DCT is favored for its relatively fast compression speeds. 39 However, the computational cost of combined SVD and DWT may be slightly higher due to the additional steps involved in both techniques. Despite this, the benefits of enhanced compression efficiency and image fidelity outweigh the marginal increase in processing time.…”
Section: Integration Of Svd and Dwt (Haar)techniquesmentioning
confidence: 99%
“…In terms of time complexity, DCT is favored for its relatively fast compression speeds. 39 However, the computational cost of combined SVD and DWT may be slightly higher due to the additional steps involved in both techniques. Despite this, the benefits of enhanced compression efficiency and image fidelity outweigh the marginal increase in processing time.…”
Section: Integration Of Svd and Dwt (Haar)techniquesmentioning
confidence: 99%
“…There are many basis functions that are used for sparse representation of a signal. The widely used basis functions are discrete wavelets transform (DWT) and discrete cosine transform (DCT) [55].…”
Section: B Sparse Representationmentioning
confidence: 99%
“…Several authors have used DCT for compression of medical images. [ 4 5 6 7 ] However, compression of NM images using DCT has not gained much attention. In this pilot study, we have performed the compression of 99m Tc methylene diphosphonate (MDP) bone scan images using DCT.…”
Section: Introductionmentioning
confidence: 99%