Abstract
In this investigation the effect of JPEG 2000 compression on the contrast-detail (CD) characteristics of digital mammography images was studied using an alternative forced choice (AFC) technique. Images of a contrast-detail phantom, acquired using a clinical full-field digital mammography system, were compressed using a commercially available software product (JPEG 2000). Data compression was achieved at ratios of 1:1, 10:1, 20:1, and 30:1 and the images were reviewed by seven observers on a high-resolution display. Psychophysical detection characteristics were first computed by fitting perception data using a maximum-likelihood technique from which CD curves were derived at 50%, 62.5%, and 75% threshold levels. Statistical analysis indicated no significant difference in the perception of mean disk thickness up to 20:1 compression except for disk diameter of 1 mm. All other compression combinations exhibited significant degradation in CD characteristics.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 64-70 |
| Number of pages | 7 |
| Journal | Journal of Digital Imaging |
| Volume | 17 |
| Issue number | 1 |
| DOIs | |
| State | Published - Mar 2004 |
| Externally published | Yes |
Keywords
- Breast cancer
- Contrast-detail
- Digital mammography
- Image compression
- JPEG 2000
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging
- Computer Science Applications