This paper aims to present a new way of providing calibration services, which uses the Internet to expand present calibration technology and makes the calibration process easy to operate. A new technology that is known as “tele-calibration” is presented. Further, this paper also discusses the general construction of the tele-calibration systems.
The low-level feature based analysis method focuses on video and audio characteristics in a clip. The commonly used video characters include color and texture information of a frame. D. Yow, et al.[1] detected appealing events in a Abstr act The necessity of efficient identification and classification of shots in a soccer game ascends with the increasing popularity and quantity of soccer videos. This paper proposes an effective and real-time identifying system for attractive events, namely shooting shots in soccer video clips. Instead of directly accessing shooting shots, this system identifies close-up shots and audience shots, which generally accompany with shooting shots. Field shots are concerned in this system as well, since this sort of shots is frequently used to describe formations of a team, indicating its strategy. This system begins with the selection of key frames. The ratio of soccer pitch color pixels in the key frame is then calculated to detect long shots. By counting the amount of edge pixels, the differentiation between close-up shots and audience shots will be completed. In order to increase the accuracy, the approach of Key Region Detection is introduced. This innovative method is proven by experiments to be comparatively precise. Experimental results validate the effectiveness of this system.
Bolt hydraulic tensioner is ideal equipment for bolt fastening and disassembly. Compared with traditional method, it has incomparable advantages. Bolt hydraulic tensioner has been widely used in wind power, nuclear power, aerospace, steel, petrochemical and other major fields. In this paper, two methods of calibrating the hydraulic stretcher are proposed, and the problems that should be paid attention to in the process of calibrating the stretcher are analyzed in detail, it can be used for reference in the calibration of hydraulic stretcher.
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