The research of improving image resolution based on wavelet interpolation and residual pyramid
On the base of the analysis of single image wavelet interpolation,the interpolation method based on wavelet and residual pyramid is proposed which can ilprove image resolution in the paper.First,the original low resolution image is interpolated by using B-spline,The wavelet coefficients in every way are obtained by discrete wavelet transform for the interpolated images.On the base of the principle of laplacian pyramid,the wavelet residual pyramid is presented to obtain the lost high frequency- details,then the wavelet coefficients of high frequency details are obtained by discrete wavelet transform.Finally,the high frequency wavelet coefficients are fused to estimate a high-resolution image.The results show the proposed approach has succeeded in obtaining a high-resolution image with a high peak signal-to-noise ratio and good visual quality.
component Wavelet Residual Pyramid Image Interpolation Discrete Wavelet Transform
Gao Yanying Liu Hongchen
Department of Computer,School of Engineering Northeast Agricultural University Harbin,China Department of Electrical Engineering Harbin Institute of Technology Harbin,China
国际会议
太原
英文
418-421
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）