We develop a strategy for extracting the underlying relational information from the images of printed tables. Visual clues that exist in the image are used for extracting first the physical, and then the logical struc...
A method for tracking human motion in 3D real scenes by means of Kalman filtering is presented;it is based on the introduction of a suitable mathematical model for human body moving in a 3D scene and interacting with ...
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A method for tracking human motion in 3D real scenes by means of Kalman filtering is presented;it is based on the introduction of a suitable mathematical model for human body moving in a 3D scene and interacting with the surrounding environment. With respect to previous study, the developed refined static and dynamic models allow the system to get accuracy and robustness even in non-controlled real-life working conditions. The method can be used in surveillance systems devoted to assure people safety in public areas.
This paper proposes an application of adaptive IIR filters to the problem of image velocity estimation. A phase-based motion algorithm (Fleet and Jepson [4], Langley and Fleet [9]) is employed to measure velocity loca...
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This paper proposes an application of adaptive IIR filters to the problem of image velocity estimation. A phase-based motion algorithm (Fleet and Jepson [4], Langley and Fleet [9]) is employed to measure velocity locally within an image sequence from the outputs of a set of complex space-time separable band-pass filters. The filters' temporal tunings are adaptively modified on the basis of measured velocity to optimise the representation of image motion. In computer simulations the scheme is shown to provide accurate estimates of velocity even at high levels of image noise.
In this contribution we consider the construction of hyperdocuments;converting scanned paper documents into electronic hypertext. Hyperlink creation is automated by analyzing the structure and content of the scanned d...
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A new color quantization method that uses the radius weighted mean cut (RWM-cut) is proposed. The method is hierarchically divisive, and each two-class partition only uses the centroid and the RWM. The processing.spee...
A symbol-connected diagram is mainly composed of symbols and their connections. All symbols can be categorized into two groups: Shape symbols and structure symbols. This paper proposes a system for automatic understan...
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Thinning is a very important preprocessing.step for many image analysis operations. The main drawbacks of traditional thinning algorithms are slow speed and serious deformation. To remedy these problems, a novel appro...
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This paper describes a new approach to the determination of intensity thresholds for image segmentation: it is based on interpolating between two or more sub-optimal thresholds to obtain a single unbiased value. We ha...
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This paper describes a new approach to the determination of intensity thresholds for image segmentation: it is based on interpolating between two or more sub-optimal thresholds to obtain a single unbiased value. We have found that the remanent bias following interpolation is virtually undetectable over a wide range of peak heights. The particular advantage of the approach is that it avoids the high computation involved in rigorous modelling of intensity distributions by curve fitting, which can prove prohibitive when adaptive thresholding has to be done in real time.
A vision architecture which is able to integrate heterogeneous processing.modules can be used in wide range of vision applications. The resultant vision machine is of coarse-grain architecture to reduce the processing...
A vision architecture which is able to integrate heterogeneous processing.modules can be used in wide range of vision applications. The resultant vision machine is of coarse-grain architecture to reduce the processing.time. Being modular, such a machine is easy to build or modify because the communication path itself can be easily adapted to the requirement of a given vision problem. Moreover, such a data path allows faster transfer rates with low latency to avoid modules from waiting inefficiently.
This paper presents a new approach to document analysis. The proposed approach is based on modified fractal signature. Instead of the time-consuming traditional approaches (top-down and bottom-up approaches) where ite...
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