摘要
为了抑制在实施FFT插值法重构的超分辨率图像中可能出现的振铃现象 ,深入分析了出现振铃现象的原因及产生条件 ,在此基础上设计了抑制振铃的频域补偿滤波器及其自适应算法。大量实验和比较结果表明 ,处理后的图像不但分辨率有所提高 ,而且未出现振铃现象 ,质量更好 ,从而证明了所设计的抑制振铃频域补偿滤波器及其自适应算法的有效性。
In order to suppress oscillatory artifacts which occur in the super resolution image reconstructed with the FFT interpolation method, the cause and condition of the presence of oscillatory artifacts are thoroughly analyzed in this paper. On this basis, a frequency compensation filter(FCF) and the adaptive algorithms for suppressing oscillatory artifacts are designed. The results of a great deal of experiments and experimental comparison show that not only the oscillatory artifacts are suppressed, but also the quality of the processed super resolution image is greatly improved, which proves the validity of the frequency compensation filter and adaptive algorithms proposed.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2003年第6期664-668,共5页
Systems Engineering and Electronics
关键词
超分辨率图像
FFT插值法
振铃
频域补偿滤波器
自适应算法
Super resolution image
FFT interpolation method
Oscillatory artifacts
Frequency compensation filter
Adaptive algorithms
