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Your search keyword '"Li, Shipeng"' showing total 24 results
Start Over Author "Li, Shipeng" Publication Type Books
24 results on '"Li, Shipeng"'

18. MPEG-4 Texture Coding

Author

Li, Weiping, primary, Zhang, Ya-Qin, additional, Sodagar, Iraj, additional, Liang, Jie, additional, and Li, Shipeng, additional

Published
2000
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23. ThresPassport - A Distributed Single Sign-On Service.

Author

Huang, De-Shuang, Zhang, Xiao-Ping, Huang, Guang-Bin, Chen, Tierui, Zhu, Bin B., Li, Shipeng, and Cheng, Xueqi

Abstract

In this paper, we present ThresPassport (Threshold scheme-based Passport), a web-based, distributed Single Sign-On (SSO) system which utilizes a threshold-based secret sharing scheme to split a service provider's authentication key into partial shares distributed to authentication servers. Each authentication server generates a partial authentication token upon request by a legitimate user after proper authentication. Those partial authentication tokens are combined to compute an authentication token to sign the user on to a service provider. ThresPassport depends on neither Public Key Infrastructure (PKI) nor existence of a trustworthy authority. The sign-on process is as transparent to users as Microsoft's .NET Passport. ThresPassport offers many significant advantages over .NET Passport and other SSOs on security, portability, intrusion and fault tolerance, scalability, reliability, and availability. [ABSTRACT FROM AUTHOR]

Published
2005
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24. IMAGE AND VIDEO CODING.

Author

Li, Shipeng and Li, Weiping

Subjects
CODING theory, DATA compression, DIGITAL electronics, VIDEO compression, IMAGE compression, PULSE-code modulation
Abstract

The article discusses many types of image and video coding techniques. The term coding used to solely refer to compression of image and video signals. However, in recent years it is generalized more toward representation of image and video data that provides not only compression but also other functionalities. To better understand the details of different image and video coding techniques and standards, many of which seem to be more art than science, a good understanding of the general problem of space of image and video coding is extremely important. The basic problem is to reduce the data rate required for representing images and video as much as possible. In compressing image and video data, often some distortion is introduced so that the received image and video signals may not be exactly the same as the original.

Published
2003

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