基于整数小波的雷达图像快速无损压缩算法

Fast and lossless compression algorithm for radar image based on integer wavelet transform

针对雷达图像数据量大,不便于传输、存储等问题,提出了将整数小波变换、哈希算法和集分割嵌入式编码相结合的雷达图像快速无损压缩算法。通过对雷达图像信号的压缩实验,该算法在不影响事后对雷达数据进行分析的情形下,提高了图像的压缩速度和压缩比,具有广泛的应用价值。

Because of limited storage and huge image data of VDR radar image, it is hard to deliver and store images. The integer wavelet transform and improved SPECK are syncretized. The image is transformed by integer wavelet first, then SPECK is used to code, and due to synthetical matching and Hash table are brought in, SPECK is improved. By radar image compression, it can improve not only compression speed but also compression rate, and its application is wide.