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This paper proposed a new method called homeomorphic non-rigid image registration based on physical model. We analyze the conditions for homeomorphic map over continuous space and discrete rectangular grid. The method keeps the Jacobian of deformation within bounds and ensures that the results are one-to-one and reversible. The constrained optimization is solved by interior penalty function method...
In this paper, a measurement model of particle filter based on multiple cues fusion is presented. Firstly, color histogram and motion information histogram are built respectively via extracting color information and movement information, and then a weighted linear model is built as the measurement model. In addition, the center-around method is used to decide the object outline definition which is...
For the problem that poor quality of particle and large amount of computation, a particle filter tracking method based on adaptive optimization is presented by using color clue of object. In our method, 24-bit color pixels are used to establish a kernel histogram of object model, and then adaptive models are built according to Bhattacharyya coefficient of object model in previous frame. In addition,...
This paper firstly uses Baidu Baike and co-occurrence proportion of adjacent words after sentence segmentation to identify new words to decreases the effect on recognition of feature because of segmentation errors. We design part of speech sequence patterns to obtain candidate feature word set from Chinese product comments, then utilize a series of effective statistical technique and natural language...
To prevent the spread of pornographic image and video on internet, this paper conducts a survey on web image content-based filtering technology. The color model, filtering technology and existing problems are mainly discussed in this paper. Filtering techniques are classified into three categories which are discussed for their characteristic. The results of this paper contribute to further theoretical...
Identification of sentiment orientation in Chinese words is essential for getting sentiment comprehension of Chinese text, and building a basic semantic lexicon with Chinese emotional words will provide a core subset for identifying emotional words in a special area. It can not only help to identify and enlarge semantic lexicon in corpus effectively but also improve classification efficiency. On the...
Background pixels in object model will increase localization error of object tracking, but in order to let the object contained in object model, it is inevitable to introduce some background pixels in object model. For reducing the localization error of object tracking, a straightforward approach is to omit the background pixels when the kernel histogram of object model is being computed, but there...
Background pixels in object model will increase localization error of object tracking, but in order to let the object contained in object model, it is inevitable to introduce some background pixels in object model. For reducing the localization error of object tracking, a straightforward approach is to omit the background pixels when the kernel histogram of object model is being computed, but there...
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