The invention provides a distributed hyper spectrum
image compression method based on 3D
wavelet transformation. The method comprises the following steps of: 1, dividing a hyper spectrum image into a plurality of coding units; 2, performing the 3D
wavelet transformation on each coding unit of the hyper spectrum image; 3, grouping images after transformation, wherein one group is used as a reference group, and another group is used as a current group; 4, coding the reference group by a 3D SPIHT method to obtain a compression code
stream of the reference group, and sending the compression code
stream to a decoding end; 5, resolving the current group by an SW-SPIHT
algorithm to obtain three groups of corresponding
bit plane code streams which are an importance factor
bit plane, an importance factor symbol
bit plane and a
thinning bit plane respectively; and 6, coding the importance factor symbol bit plane and the
thinning bit plane of the current group by a low-density
parity check code to obtain a corresponding check bit
stream, transmitting the code stream of the importance factor bit plane of the current group to the decoding end, and completing the compression of the hyper spectrum image. The method has the advantages of low coding complexity and good compression property, and can be used for compressing the hyper spectrum image.