计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2014年
4期
185-187,196
,共4页
段娟%景万里%张楠%肖创柏%武博
段娟%景萬裏%張楠%肖創柏%武博
단연%경만리%장남%초창백%무박
颅内肿瘤%小波变换%加权聚类%多方向
顱內腫瘤%小波變換%加權聚類%多方嚮
로내종류%소파변환%가권취류%다방향
Intracranial tumour%Wavelet transform%Weighted aggregation%Multi-direction
分割 MR 颅内肿瘤区域后,可对病变部分进行针对性的临床治疗和处理。结合临床实际,提出一种基于小波变换的多方向加权聚类颅内肿瘤图像分割方法。通过小波变换和多方向加权聚类算法的结合,利用非线性的补偿图像轮廓来增强小波分解后的高频信号,并对低频信号做多方向的种子点选取加权聚类算法改进。实验结果表明,该算法在大大减少时间复杂度的基础上,也能有效地提高准确性。
分割 MR 顱內腫瘤區域後,可對病變部分進行針對性的臨床治療和處理。結閤臨床實際,提齣一種基于小波變換的多方嚮加權聚類顱內腫瘤圖像分割方法。通過小波變換和多方嚮加權聚類算法的結閤,利用非線性的補償圖像輪廓來增彊小波分解後的高頻信號,併對低頻信號做多方嚮的種子點選取加權聚類算法改進。實驗結果錶明,該算法在大大減少時間複雜度的基礎上,也能有效地提高準確性。
분할 MR 로내종류구역후,가대병변부분진행침대성적림상치료화처리。결합림상실제,제출일충기우소파변환적다방향가권취류로내종류도상분할방법。통과소파변환화다방향가권취류산법적결합,이용비선성적보상도상륜곽래증강소파분해후적고빈신호,병대저빈신호주다방향적충자점선취가권취류산법개진。실험결과표명,해산법재대대감소시간복잡도적기출상,야능유효지제고준학성。
Targeted clinical therapy and treatment can be applied in the lesion part after the segmentation is made on MR intracranial tumour area.With clinical practice,we propose a wavelet transform-based intracranial tumour segmentation algorithm with multi-directional weighted aggregation.Through the combination of wavelet transform and multi-directional weighted aggregation algorithm,it enhances the high-frequency signal decomposed with wavelet by using a non-linear compensation image contours,and improves the low-frequency signals by the multi-directional weighted aggregation algorithm with seed point selection.Experimental results show that on the basis of greatly reducing the time complexity,the proposed algorithm can effectively improve the accuracy.