This paper proposed an embedded smart sensor which is consisted of a 6 DOF (Degree Of Free) IMU (Inertial Measurement Unit), a 3-axis magnetic compass, a monocular camera and a DSP processor which is high performance ...
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ISBN:
(纸本)9787894631046
This paper proposed an embedded smart sensor which is consisted of a 6 DOF (Degree Of Free) IMU (Inertial Measurement Unit), a 3-axis magnetic compass, a monocular camera and a DSP processor which is high performance and power saved, and briefly discussed the design and construction of the system's hardware. By using this embedded smart sensor, we proposed a attitude determination method which is based on the quaternion and the epipolar geometry. The experimental results demonstrated the effectiveness of the methods.
This paper studied the calibration method for a type of embedded smart sensors which are integrated with inertial, magnetic and vision sensors. A set of calibration and modeling methods which are suitable for the low ...
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ISBN:
(纸本)9787894631046
This paper studied the calibration method for a type of embedded smart sensors which are integrated with inertial, magnetic and vision sensors. A set of calibration and modeling methods which are suitable for the low cost applications have been proposed. For the deterministic items and nondeterministic items, we used the method of modulus matching of the input vectors and the method of time series analysis to calibrate and modeling them respectively;for the relative rotation between the accelerometers' frame and the camera frame, we proposed a calibrating method which is based on the gravity vector and plumb line. The experimental and simulation results demonstrated the practicability and effectiveness of these methods.
Automatic composition of semantic Web services by requests is one of difficult problems in the field of Web services. In this paper we investigate Web services ontology and ant colony (AC) algorithm and propose a meth...
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Recent studies have found that adoption of structure similarity index (SSIM) was successful in reflecting human visual characteristic better compared with traditional PSNR metrics. However this method shows some defec...
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To save time, improve flexibility and guarantee accuracy of the navigation system of the mobile robots, a multifunction landmark and a new navigation algorithm are proposed in this paper. With the new algorithm and la...
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The gradient vector flow (GVF) is an effective external force for active contours, but it's smoothness constraint doesn't take any image structure into account and the resulting diffusion equation is isotropic...
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Considering there are many seismicity factors with information overlap, we apply a gray generating -A generating GM model which has higher precision to mine the potential law of these factors, and apply principal comp...
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Modifications in software can affect some functionality that had been working until that point. In order to detect such a problem, the ideal solution would be testing the whole system once again, but there may be insu...
Modifications in software can affect some functionality that had been working until that point. In order to detect such a problem, the ideal solution would be testing the whole system once again, but there may be insufficient time or resources for this approach. An alternative solution is to order the test cases so that the most beneficial tests are executed first, in such a way only a subset of the test cases can be executed with little lost of effectiveness. Such a technique is known as regression test case prioritization. In this paper, we propose the use of the Reactive GRASP metaheuristic to prioritize test cases. We also compare this metaheuristic with other search-based algorithms previously described in literature. Five programs were used in the experiments. The experimental results demonstrated good coverage performance with some time overhead for the proposed technique. It also demonstrated a high stability of the results generated by the proposed approach.
Over the last two decades, many image processing problems have been modeled by partial differential equations (PDEs), such as restoration and segmentation. Due to good performance at controlling the trade-off between ...
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Web Services is a service-oriented architecture of Web-based standard software components, while the Agent is intelligentsoftware entity which has its own ability to achieve its designed goals in a heterogeneous envi...
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