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图像分解和区域保护在SAR图像压缩中的应用

DOI: 10.11834/jig.20090101

Keywords: 图像分解,自动目标识别,图像压缩,全变分

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Abstract:

在机载通信链路带宽有限的条件下,SAR图像的有损压缩是解决实时性和带宽限制的可行方案。提出了一种基于图像分解的敏感目标区域自动提取与保护的SAR图像压缩策略。首先将SAR图像分解为结构分量和纹理分量,然后在纹理分量中对包含潜在目标的区域进行检测,生成敏感目标区域掩码,最后对潜在目标区域进行保护性的低损压缩,对背景区域进行高损压缩。实验结果表明,恢复后的图像与标准的JPEG2000算法相比在同样的码率条件下具有更好的视觉效果。

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