METHOD FOR IMPROVING QUALITY OF IVR IMAGE

摘要

PROBLEM TO BE SOLVED: To provide a method by which noise in an IVR (interventional radiology) image can be filtered out and its linear shades of guide wires, a blood vascular system and the like to be focused can be accentuated. SOLUTION: An original IVR image (S1) whose quality should be improved is subjected to ICA (independent content analysis)-Shrinkage filter processing (S2) and a first IVR image is generated (S3) from which noise signals are filtered out. The first IVR image is subjected to multi-scale filter processing (S4) and a second IVR image in which linear shade signals are accentuated is generated (S5). After inverting the contrast of the second IVR image, the first and second IVR images are composed (S6) and an IVR image whose quality is improved is generated (S7). COPYRIGHT: (C)2009,JPO&INPIT