计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2009年
31期
224-226
,共3页
超声图像%治疗区域%边缘检测%数学形态学
超聲圖像%治療區域%邊緣檢測%數學形態學
초성도상%치료구역%변연검측%수학형태학
ultrasonic image%treatment region%edge detection%mathematical morphology
根据B超监控图像中HIFU(High Intensity Focused Ultrasound)治疗区域的特点,采用小波变换模局部极大值方法提取治疗区域边缘特征点,并结合模糊判决理论进行边缘连接,最后通过形态学后处理得到B超图像治疗区域的封闭轮廓曲线.结果证明:该方法克服了传统图像分割方法阈值难以确定的瓶颈,能够更好地从B超图像中检测出HIFU治疗区域的大小.
根據B超鑑控圖像中HIFU(High Intensity Focused Ultrasound)治療區域的特點,採用小波變換模跼部極大值方法提取治療區域邊緣特徵點,併結閤模糊判決理論進行邊緣連接,最後通過形態學後處理得到B超圖像治療區域的封閉輪廓麯線.結果證明:該方法剋服瞭傳統圖像分割方法閾值難以確定的瓶頸,能夠更好地從B超圖像中檢測齣HIFU治療區域的大小.
근거B초감공도상중HIFU(High Intensity Focused Ultrasound)치료구역적특점,채용소파변환모국부겁대치방법제취치료구역변연특정점,병결합모호판결이론진행변연련접,최후통과형태학후처리득도B초도상치료구역적봉폐륜곽곡선.결과증명:해방법극복료전통도상분할방법역치난이학정적병경,능구경호지종B초도상중검측출HIFU치료구역적대소.
According to the characteristic of High Intensity Focused Ultrasound (HIFU) treatment region in mode B ultrasonic monitoring image,the edge feature points of treatment region,which are abstracted by method of local maximum of wavelet transform modulus,are connected by combining the fuzzy logic.At last,the closed contour curve of treatment region of mode B ultrasonic monitoring image is obtained by morphology post-processing.The results show that the size of treatment region can be detected better from mode B ultrasonic monitoring image by this method which has broken through the chock point that the threshold is hard to fix on in traditional image segmentation methods.
