1
Lossless compression of medical images : a comparative study | |
Author | Titasak Boonthai |
Call Number | AIT Thesis no. IM-96-05 |
Subject(s) | Radiography, Medical |
Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Advanced Technologies |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. IM-96-05 |
Abstract | Context-based image compression, using the property of medical images that are highly related to neighboring gray-scale pixels can be used to predict the next pixel. Once the pixels from the previous rows and the previous columns are known to the encoder, the current pixel can be predicted and the prediction errors which are only small numbers will be transmitted so that the decoder at the remote site can rebuild the original images accurately. The compression is accomplished because the coding required small errors need less number of bits, than needed for the regular pixels. In this study, five test images were scanned, converted to BMP file format, using JPEG's eight modes of predictors for modeling, and compressed using LZW, Huffman, and arithmetic compression algorithms. 'The results are analyzed and discussed. |
Year | 1996 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IM-96-05 |
Type | Thesis |
School | School of Advanced Technologies (SAT) |
Department | Department of Information and Communications Technologies (DICT) |
Academic Program/FoS | Information Management (IM) |
Chairperson(s) | Sadananda, Ramakoti; |
Examination Committee(s) | Stueart, Robert D.;Devadason, Francis J.; |
Scholarship Donor(s) | The Royal Thai Government (RTG) |
Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1996 |