Comparison of discrete cosine transform and dual-tree complex wavelet transform based on arithmetic coding in medical image compression

Medical image contains very important information in the medical world used to diagnose diseases by doctors. Storage for storing medical imagery requires large storage media. The difficulty of sending and storing files, hence the process of compression image that can shrink the size of medical image...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series Vol. 1367; no. 1; pp. 12021 - 12034
Main Authors: Novamizanti, Ledya, Prasasti, Anggunmeka Luhur, Noor Kiranda, Ilham Faezar
Format: Journal Article
Language:English
Published: Bristol IOP Publishing 01.11.2019
Subjects:
Arithmetic coding
Compression ratio
Decoding
Discrete cosine transform
Image coding
Image compression
Image quality
Medical imaging
Medical research
Physicians
Physics
Storage
Wavelet transforms
ISSN:1742-6588, 1742-6596
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Medical image contains very important information in the medical world used to diagnose diseases by doctors. Storage for storing medical imagery requires large storage media. The difficulty of sending and storing files, hence the process of compression image that can shrink the size of medical image. This research uses the Discrete Cosine Transform and Dual-Tree Complex Wavelet Transform-based Arithmetic Coding. DCT is used in the process of compression of imagery files using the cosine value approach. In DCT, there is a quantization process that causes image quality to decline, as it eliminates some information on imagery. DTCWT uses 2 trees, where tree 1 is for real value and tree 2 for imaginary value. Arithmetic Coding is one of entropy encoding that uses the range and probability values in the calculation. The value of decoding results in Arithmetic Coding has the same value as the original image. DCT produce a higher compression ratio than DTCWT, while DTCWT get higher PSNR than DCT.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1367/1/012021