Multitemporal Hyperspectral Image Compression

作者：Zhu Wei^*; Du Qian; Fowler James E

来源：IEEE Geoscience and Remote Sensing Letters, 2011, 8(3): 416-420.

DOI：10.1109/LGRS.2010.2081661

• Data compression
• hyperspectral imagery
• multitemporal imagery

The compression of multitemporal hyperspectral imagery is considered, wherein the encoder uses a reference image to effectuate temporal decorrelation for the coding of the current image. Both linear prediction and a spectral concatenation of images are explored to this end. Experimental results demonstrate that, when there are few changes between two images, the gain in rate-distortion performance is achieved over the independent coding of the current image. In addition, a strategy that explicitly removes salient temporal changes and stores them losslessly in the bitstream is proposed, and it is observed that this change-removal process results in a slight decrease in the rate-distortion performance with the benefit of perfect representation of the changed pixels.

• 出版日期2011-5