局所適応形平滑化フィルタの自動生成アルゴリズム : 超音波画像におけるスペックル低減への応用

概要

論文の詳細を見る
I propose a novel locally adaptive smoothing algorithm for noise reduction filtering without losing contour. Using stochastic feature of speckle pattern, this filter works as speckle suppression in ultrasonic images. The medical ultrasonic image is widely used because of many merits such as machinery simplicity, low cost, real-time observation, and high safety without radiation. However, the ultrasonic image has a defect of image quality caused by speckle pattern noise. Therefore, speckle suppression filtering is important and indispensable. In this paper, the proposed locally adaptive filter for speckle suppression is evaluated by simulations. I also attempt to automatic segmentation of the superficial peripheral vein image obtained by a high-frequency ultrasonic equipment.
社団法人電気学会の論文
2005-03-01