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This paper presents systematically a method for image compression/decompression viawavelet transform.It consists of filter,quantization and Huffman coding etc..Different methodshave been compared.Finally,some suggestions for further studies are proposed.In fact,the paper isa summary of our recent research. 相似文献
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Sequence analysis of immunoglobulin light chain messenger RNA 总被引:20,自引:0,他引:20
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Iterative methods are popular choices in image reconstruction fields due to their capability of recovering object information from incomplete acquisition data.However,the computation process involves frequent uses of forward and backward projections that are computationally expensive.Past research has proved that a forward projector that can produce high quality images is crucial to achieve a good convergence rate.In this paper a high performance iterative reconstruction framework is introduced,where two mo... 相似文献
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Transcriptional interference and termination between duplicated alpha-globin gene constructs suggests a novel mechanism for gene regulation 总被引:51,自引:0,他引:51
N J Proudfoot 《Nature》1986,322(6079):562-565