The paper presents a robust algorithm for computation of optical flow using the principle of conservation of a set of semi-invariant local features that are representatives of local gray-level properties in an image. ...
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The paper presents a robust algorithm for computation of optical flow using the principle of conservation of a set of semi-invariant local features that are representatives of local gray-level properties in an image. Specifically, a set of rotation-invariant local orthogonal Zernike moments is used as features. These are inherently integral-based features, and therefore are robust against possible variations of intensity values that may occur over a sequence of images due to sensor noise, varying illumination etc. The 2D local optical flow field is obtained by the singular value decomposition of an overdetermined set of linear equations of velocity field components, resulting from the principle of conservation of features in a small neighborhood. The proposed approach is compared with Horn-Schunck (1981), and Lucas-Kanade's optical flow techniques. Experimental results with synthetic as well as real sequences are presented to demonstrate the effectiveness of the proposed approach.< >
Internal model control (IMC) was implemented for the temperature control of a single tubular heat exchanger system. The experimental heat exchanger system was a very simple structure, however, the characteristics were...
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Internal model control (IMC) was implemented for the temperature control of a single tubular heat exchanger system. The experimental heat exchanger system was a very simple structure, however, the characteristics were regarded as a distributed parameter system. Since IMC used the system model, it was necessary to identify the parameters precisely. The step response and the usual frequency response method and least square method were used for 1st order plus time delay, and 2nd order system and for fitting the coefficient of the partial differential equation, respectively. In this laboratory experiment, it was clear that: (1) since the IMC structure includes a PI controller, the performance of the IMC was superior to PI control; (2) the only tuning filtering parameter of the IMC controller affected the sensitivity and robustness; and (3) since IMC controller was constructed from the system model, it is very important to set up the plant model and identifications.< >
A rohust Constant False Alarm Rate (CFAR) distributed detection system that operates under clutter whose distribution parameters are unknown-is presented. Each peripheral sensor assumes temporal and spatial independen...
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We describe a design technique for optimal control in active structural vibration damping using smart materials. The vibration of a cantilever beam is stabilized by using distributedsensors and actuators. We model th...
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Computer networks are growing in number and capacity, and internetworking allows users to access services globally. An inherent problem of such large networks is managing the heterogeneity of applications, hardware an...
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We present a distributed approach to traffic signal control, where the signal timing parameters at a given intersection are adjusted as functions of the local traffic condition and of the signal timing parameters at a...
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The author summarizes one major aspect of current research work, the guidance of robot motion using sensors and a priori process knowledge. The research challenge in this area is to construct ways of interpreting and ...
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In distributed multimedia systems, the synchronization of multimedia information is one of the most important as well as difficult issues. In this paper, we propose three synchronization mechanisms and discuss how to ...
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Different learning models employ different styles of generalization on novel inputs. The need for multiple styles of generalization to support a broad application base is discussed. The priority ASOCS (PASOCS) model (...
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A distributed data collection system developed for use in cost sensitive situations is described. The system design constraints included reliability, low cost, high flexibility, and real time performance. The resultin...
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