Berkhoff A P, Huisman H J, Thijssen J M, Jacobs E M, Homan R J
Department of Ophthalmology, St-Radboud University Hospital, Nijmegen, The Netherlands.
Ultrason Imaging. 1994 Apr;16(2):87-108. doi: 10.1177/016173469401600203.
Two fast algorithms for interpolation of ultrasonic sector-scans were developed. Both algorithms are based on line-drawing algorithms and are free from multiplications in the innermost loops. The algorithms were compared to the following conventional interpolators: 2-D windowed sinc, bicubic spline, 4 x 4 point bicubic spline, bilinear, and nearest neighbor. The most accurate of the two new algorithms is about eight times faster than nearest neighbor interpolation. The quantitative errors are of the same order as the errors of the nearest neighbor interpolator. The subjective image quality is between nearest neighbor and bilinear interpolation.
开发了两种用于超声扇形扫描插值的快速算法。这两种算法均基于画线算法，并且在最内层循环中无需乘法运算。将这些算法与以下传统插值器进行了比较：二维加窗正弦、双三次样条、4×4点双三次样条、双线性和最近邻插值。两种新算法中最精确的算法比最近邻插值快约八倍。定量误差与最近邻插值器的误差处于同一量级。主观图像质量介于最近邻插值和双线性插值之间。
