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This paper proposes a color attribute compression method for MPEG Point Cloud Compression (PCC) by exploiting the spatial redundancy among the adjacent points. With the increased interest in representing real-world surface as 3D point clouds, compressing the attributes (i.e., colors and normal directions) of point cloud has attracted great attention in MPEG. The proposed method is based on grouping...
In Peer-to-Peer (P2P) e-commerce systems, peers' features such as heterogeneity, anonymity and autonomy lead to some security problems, such as forging, slandering and collective cheating, which affect the quality of service a lot. A trust model in P2P e-commerce systems based on the recommendation is proposed, each peer in the system has a unique credibility of recommendation, two trust parameters...
Object-oriented models cannot fit very well with relational models. This mismatch leads to time-consuming work for designers when saving and storing objects in relational databases. To solve the problem, this paper put forward data class object container method. This object container encapsulates direct access to the database in a base class and provides generic interface services. Objects derive...
In order to obtain the data of the target when the missile intersects the target, and to allow researchers to make an analysis about the target according to these data, a data acquisition system with acquisition, display and storage function was designed in this paper. An overall design plan of the Multi-channel data acquisition has been presented. The system consists of hardware part and software...
RFID application becomes the focus recently. As an automatic identification technology, RFID has many advantages over traditional one like barcode. It does bring about tremendous changes, and also face lots of barriers during investment. In this paper, we integrate technology risk, IT risk and RFID risk, develop a RFID risk factor framework with analogy method, and find out the relationship between...
The realization of full text endorsement and traces reservation function of the body of documents are essential component of many Web-based OA application systems. This paper presents a new kind method of realizing the full text endorsement and traces reservation function in the integrated use of ASP.NET, ActiveX and WebDAV technologies. Users can directly annotate or audit the documents in IE browser...
The 21st century is the times of Digital Information. Most governments focus on the development of digital information, such as America, Japan, Korea, Britain, Germany, France and China. Over 90 percent of invention can be found in patent literature around the world each year. The Scientometric study of the patents in the field of international digital information transmission has an important reference...
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