An efficient convolution interpolation kernel for digital image scaling

作者：Lin Chung chi^*; Sheu Ming hwa; Chiang Huann keng; Liaw Chishyan; Wu Zeng chuan

来源：IEICE Electronics Express, 2008, 5(20): 860-864.

DOI：10.1587/elex.5.860

• bi-cubic convolution
• interpolation
• scaling

This paper presents an efficient extended linear convolution interpolation method for efficient scaling. The kernel of the extended linear convolution interpolation is built up of first-order polynomial and approximates the ideal sinc-function in interval [-2, 2]. The approach reduces the computational complexity of interpolation and the interpolation quality is compatible to that of bi-cubic convolution interpolations.

• 出版日期2008-10-25