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In this paper we introduce a shape descriptor known as Self Similar Affine Invariant (SSAI) descriptor for shape retrieval. The SSAI descriptor is based on the property that two sets of points are transformed by an affine transform, then subsets of each set of points are also related by the same affine transformation. Also, the SSAI descriptor is insensitive to local shape distortions. We use multiple...
Precision agriculture, a modern agriculture system, is a good solution for the implementation of pollution-free agricultural program. The start point of precision agriculture is the collection of agricultural growth data, but it is not an easy job as the APB (Agricultural Production Base) is always far away from city center and located remotely. As a result, the APB is hard to be covered by network,...
This paper studies the integration of VRML and Ja-va3D in the Web3D core technology, and adopts Java3D to implement the virtual scene displaying and the users and virtual scene interactive roaming function, promoting users to experience the 3D stereo model displaying way online without leaving home.
With the continuous expansion of production scale and modern technology application, Production management is also gradually moving towards the path of development of information, Facing the huge amount of information in enterprise production process, It is necessary to enhance the enterprise production management work through a set of management information system the efficiency. Microcomputer ingredient...
This paper concentrates on speech duration distributions that are usually invariant to noises and proposes a noise-robust and real-time voice activity detector (VAD) using the hidden semi-Markov model (HSMM) to explicitly model state durations. Motivated by statistical observations and tests on TIMIT and the IEEE sentence database, we use Weibull distributions to model state durations approximately...
ETL is an important process in building data warehouse. For processing large volume of data and accessing to heterogeneous multi-data sources, how to efficiently shorten the execution time and possess the ability of general accessing data sources is a big challenge. Aiming at the special requirements of telecommunication decision support system, this paper proposes a solution of a general ETL management...
This article outlines several structure models of the substation automation system, and does a brief summary and comparison. Next, it introduces the new concept of comprehensive automation of electric power system - e-automation, in detail analyzes its hardware architecture and software architecture. At last, this paper presents the development trend of the structure of substation automation system.
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