Nie Yong-dan

Northeast Petroleum University

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Hou Junlong

Northeast Petroleum University

Yan Zhang

University of Chinese Academy of Sciences

Tang Guowei

Peking University

Miao Qi

Zhengzhou University

Weijian Liu

Wuhan Branch of the National Science Library

Bofeng Zhang

Shanxi University

Hui Xu

Nanjing University

Chang Liu

Fudan University

Chunhua Zhang

Second Affiliated Hospital of Nanjing Medical University

W E I-Xing Huang

People's Hospital of Cangzhou

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People's Hospital of Cangzhou

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Chinese Academy of Sciences

University of Chinese Academy of Sciences

Sichuan University

Peking University

Shanghai Jiao Tong University

Sun Yat-sen University

Zhejiang University

Fudan University

University of Electronic Science and Technology of China

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Nie Yong-dan Yan Zhang Tang Guowei Hou Junlong Shuang Wu

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10.1109/iccsnt.2012.6526370

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Compression Technology of Color Image Based on Wavelet Transformation

Nie Yong-dan

Based on the HVS and the theory of zerotree,a color image compression scheme is proposed in the theory of improved and expanded SPIHT coding algorithm.After testing,it is proved that this color image compression scheme is better to visual effects and easier to implement.

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Image wavelet packet coding algorithm based on subbands edge active measure

Nie Yong-dan Yan Zhang Tang Guowei Hou Junlong

This paper proposed a new image wavelet packet coding algorithm based on subbands edge active measure (SEAM). Firstly the degree of edges and textures in high frequency of subbands wavelet decomposition is measured and classified by SEAM, and the SEAM is used as the wavelet packet best basis selection function, the similarity of wavelet coefficient in high frequency subbands are strengthened, during the SEAM is reduced in the WP decomposition process. The core coding algorithm is based on SPECK which collected the wavelet coefficient with the block-based method. Experimental results show that the proposed algorithm outperforms the baseline SPECK algorithm in term of PSNR, and the time complexity is lower.

Cascade algorithm

Stationary wavelet transform

10.1109/iccsnt.2012.6526036

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Application of asynchronous I/O for LINUX 2.5 to FTP service

Nie Yong-dan

Asynchronous I/O is more efficient when applied to FTP service than synchronous I/O essentially. LINUX is supportive to asynchronous I/O on kernel-level under version 2.5,but many FTP services use synchronous I/O to access file as before. By replacing synchronous I/O by asynchronous I/O to store file to improve on FTP service, performance of FTP service is improved. Comparison experiment proves that asynchronous I/O has better performance.

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Core Image Coding Based on WP-EBCOT

Communications in computer and information science (2010)

Nie Yong-dan Yan Zhang Jinghui Li

JPEG 2000

10.1007/978-3-642-18134-4_63

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Hierarchical retrieval of human motion data based on semantic feature

Nie Yong-dan Lianmei Liu

In motion capture data reusing process, because of the huge amount of data, motion data retrieval is rather time-consuming, and the length of motion data is not the same, so the motion data that similar in logical is not similar in numerical. This paper extracts the motion features, creates the semantic indexing tree, and proposes a hierarchical motion data retrieval method, divides the retrieval process into three levels: semantic indexing retrieval, motion feature retrieval, and motion data retrieval, use the DTW as the algorithm for calculating the similar for sample motion and motion data in database, this hierarchical retrieval improves the retrieval speed, at the same time, considers the recall and precision of retrieval, provides an effective way for the reuse of motion data.

Feature (linguistics)

10.1109/iccse.2016.7581670

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