Existing collision detection algorithms is difficult to solve deformable objects problem , and the bounding box is the most widely used collision detection algorithm in the current virtual reality technology, so w...
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Existing collision detection algorithms is difficult to solve deformable objects problem , and the bounding box is the most widely used collision detection algorithm in the current virtual reality technology, so we proposed the research which based on the bounding box of deformable objects. Focus on the bounding box algorithm of AABB, OBB, k-dops were compared, in order to select more suitable for deformable objects bounding box algorithm. Then the traditional K-dops introduced Snake model, which makes the algorithm closely and real-time performance are improved.
With the idea of using human characteristics in accessing system resources, biometric becomes one of the ways. And fingerprint becomes one choice to secure systems, because it is unique and widely acceptable. In t...
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With the idea of using human characteristics in accessing system resources, biometric becomes one of the ways. And fingerprint becomes one choice to secure systems, because it is unique and widely acceptable. In this paper, we define an efficient verification system based on biometrics, which is hoped to access real system resources without physical key. We especially research the fast and reliable minutiae matching algorithm to improve the performance efficiency. As we know, the quality of the input fingerprint images has an effect on the performance of a minutiae extraction algorithm. So we study an improved fingerprint enhancement algorithm capable of finding the correspondences between minutiae stored in template and the input image without an exhaustive search. And this algorithm can improve the clarity of valley and ridge structure. The results of experiment show that the method can improve the matching efficiency.
to realize the requirements translating industrial instruments to the digital, HART modem and HART PC software have been developed. When running the HART software on a PC, the signals are conversed by a HART modem...
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to realize the requirements translating industrial instruments to the digital, HART modem and HART PC software have been developed. When running the HART software on a PC, the signals are conversed by a HART modem to realize the functions of monitoring the intelligent electrical positioner, contlguration and so on. The data of HART 475 measured proves that the design conforms to the HART protocol standard, which communication is stable and reliable to meet the requirements of industrial field devices.
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