摘要
针对图像传输的丢包问题,基于拉普拉斯金字塔,本文提出一种双向塔式恢复算法。该算法构建双向金字塔数据模型,引入权值矩阵,滤波提取低频系数,插值恢复高频系数。实验证明,在丢包条件下,该算法比拉普拉斯金字塔算法恢复图像质量的性能有较大提高。
Based on the Laplacian pyramid, a duplex pyramid algorithm is proposed to reconstruct lost images over network transmission. This algorithm extracts filtered low-frequency coefficients and recovers interpolated high-frequency coefficients with the weighting matrixes in a duplex-pyramid structure. It is proved that the algorithm performs better in performance simulations than the Laplacian pyramid.
出处
《计算机工程与科学》
CSCD
2005年第5期36-38,共3页
Computer Engineering & Science
基金
教育部科技攻关重点课题(99092)
