现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
8期
109-113
,共5页
B超机%数字扫描变换器%坐标变换%数据插补
B超機%數字掃描變換器%坐標變換%數據插補
B초궤%수자소묘변환기%좌표변환%수거삽보
B-scanner%digital scan converter%coordinate transformation%missing data interpolation
描述了数字扫描变换器设计的两种算法结构，即正查数据地址法和倒查数据地址法，采用两种算法来实现扇形扫描的数字扫描变换器中的坐标变换和数据插补，给出相应的Matlab实现程序。实验结果表明，正查数据地址法实现了一维插补，倒查数据地址法实现了二维平面插补，得到的图像都达到预期的效果。
描述瞭數字掃描變換器設計的兩種算法結構，即正查數據地阯法和倒查數據地阯法，採用兩種算法來實現扇形掃描的數字掃描變換器中的坐標變換和數據插補，給齣相應的Matlab實現程序。實驗結果錶明，正查數據地阯法實現瞭一維插補，倒查數據地阯法實現瞭二維平麵插補，得到的圖像都達到預期的效果。
묘술료수자소묘변환기설계적량충산법결구，즉정사수거지지법화도사수거지지법，채용량충산법래실현선형소묘적수자소묘변환기중적좌표변환화수거삽보，급출상응적Matlab실현정서。실험결과표명，정사수거지지법실현료일유삽보，도사수거지지법실현료이유평면삽보，득도적도상도체도예기적효과。
For getting good quality images with the sector scan mode,the digital scan converter is indispensable part to B?scanner,which is a very important tool of medical ultrasonic imaging. Two kinds of major algorithms to achieve transformation of coordinates and interpolation of the missing data in design of digital scan converter are described,which are positive and oppo?site methods for querying data address respectively. The corresponding Matlab program for realizing both the two algorithms is given. The experimental result shows that the positive method for querying data address can implement the 1? dimensional inter?polation,and the opposite method for querying data address can realize the 2?dimensional plane interpolation. The consequent images have achieved the desired effect.
