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Showing papers by "Xiang Peng published in 2004"


Journal ArticleDOI
TL;DR: This article analyzes the measurement performance of a 3D full-field imaging system based on the projection of grating and active triangulation and investigates in detail the influence on the measurement results of the introduction of an inaccuracy into the determination of the system's parameters.

63 citations


Journal ArticleDOI
01 Jan 2004-Optik
TL;DR: The proposed model employs a hybrid architecture in which the previously published encryption algorithm based on virtual-optics imaging methodology (VOIM) can be used to encipher and decipher data while an asymmetric algorithm is applied for enciphering and deciphering the session key(s).

10 citations


Journal ArticleDOI
01 Jan 2004-Optik
TL;DR: An approach of high-efficiency implementation of data security based on virtual-optics imaging methodology (VOIM) with the aid of parallel hardware and parallel software (PHPS) strategy that makes it possible for the VOIM to be realized in real-time applications in embedded systems for multimedia data security.

3 citations


Journal ArticleDOI
01 Jan 2004-Optik
TL;DR: This article proposes a method to construct a generalized iso-surface equation (GIE), which is based on vector-map reasoning and least-mean-square approximation, and introduces the directional information into the equation from which one is able to build up a clear geometrical or physical picture to explain the relationship between the weight function and signed-distance.

2 citations


Proceedings ArticleDOI
Pengdong Gao1, Pengdong Gao2, Zeyi Liu1, Zeyi Liu2, Xiang Peng1 
19 Mar 2004
TL;DR: A novel approach based on data reduction and subdivision is presented in this article and the experiment results are given to show the effectiveness of proposed method.
Abstract: During the process of the real object virtualization, the data obtained from the digital system, such as the three-dimension imaging and modeling system (3DIMS), are very large. Even after the processing based on reverse engineering, the resulting image still can't satisfy the demands of computer animation, etc. So a novel approach based on data reduction and subdivision is presented in this article. The experiment results are also given to show the effectiveness of proposed method.