The bandwidth restricts airborne communication

so compression airborne SAR image with loss is a feasible way to enhance the real-time performance and image quantity. This paper proposed a SAR image compression strategy which extracts and protects target regions based on image decomposing technology. Firstly

the SAR image is decomposed into structure component and texture component. Then the target information is detected and classified from the texture component to construct ROI mask. Finally

the ROI mask is used to protect the important target information during compression by allocating more bits to it while reducing bit allocation to the residual.The experimental results indicate that the reconstructed image using the proposed approach has better visual effect than those processed by JPEG2000 arithmetic under the same bit rate.