NSSC OpenIR  > 微波遥感部
Alternative TitleAn on-board compression method for remote sensing image with invalid cloud region
王静; 卞春江; 王怀超
Source Publication中国空间科学技术
Keyword遥感图像 图像压缩 云区域 形状自适应 小波变换 位平面编码
Other AbstractThe remote sensing image contains a large area of invalid cloud area,and the shape of the remote sensing image after the cloud area is removed exhibits the characteristics of irregularlity. For the compression problem of remote sensing images with invalid cloud regions,a shapeadaptive CCSDS-IDC compression method was proposed based on the original CCSDS-IDC algorithm.The method took the original image and its cloud mask as input,and performed shapeadaptive wavelet transform on the effective region in the image.The Lazy wavelet transform result of the mask image was used to guide the wavelet coefficient encoding,and the transition word and the scanned word coding table were redesigned.Finally,a shape-adaptive bit-plane scanning and encoding method was constructed.The experimental results show that the marking method can improve the decompressed image quality when the compression ratio is certain.When the image quality is fixed,it can further reduce the compression bitrate.For onboard application, the proposed method can increase the onboard imaging time of the satellites,and eventually improves the onboard performance of remote sensing satellites.
Indexed ByCSCD
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Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
王静,卞春江,王怀超. 含无效云区域遥感图像在轨压缩方法[J]. 中国空间科学技术,2018,38(6):11-20.
APA 王静,卞春江,&王怀超.(2018).含无效云区域遥感图像在轨压缩方法.中国空间科学技术,38(6),11-20.
MLA 王静,et al."含无效云区域遥感图像在轨压缩方法".中国空间科学技术 38.6(2018):11-20.
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