CAJ | 학술논문

对医学超声图像使用双边滤波技术不仅可以很好地抑制噪声，同时可以较好地保留组织结构信息。但由于该技术涉及大量的复杂计算往往难以满足实时处理的要求，为此依据Fermi架构技术特性设计完成一种斑点噪声抑制的并行处理算法。数据测试结果显示，采用Fermi架构的GPU处理在保证算法处理效果基础上获得了比较明显的加速效果。对于512×512的图像数据在迭代两次的情况下能够达到25 fps的帧率，速度提高了大约90倍。
대의학초성도상사용쌍변려파기술불부가이흔호지억제조성，동시가이교호지보류조직결구신식。단유우해기술섭급대량적복잡계산왕왕난이만족실시처리적요구，위차의거Fermi가구기술특성설계완성일충반점조성억제적병행처리산법。수거측시결과현시，채용Fermi가구적GPU처리재보증산법처리효과기출상획득료비교명현적가속효과。대우512×512적도상수거재질대량차적정황하능구체도25 fps적정솔，속도제고료대약90배。
Applying bilateral filtering technique in medical ultrasound imaging system can suppress noise very well;meanwhile the tissue structure information can also be well preserved.However,since this technique involves in massive complicated computation,it is usually difficult to meet the requirement of real-time processing.Therefore,in this paper we design and implement a parallel algorithm for speckle noise suppression processing according to the technical character of Fermi architecture.Numerical test results show that by using Fermi architecture,the GPU (graphics processing unit)processing achieves quite obvious speedup effect on the basis of maintaining processing result of the algorithm.It can achieve 25 fps frame rate for the image data with 512 ×512 size in circumstance of iterating twice,the speed increases about 90 times.