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Obtaining vehicle license plate (VLP) character strings from VLP image is an essential technology in the intelligent transportation systems. The accuracy of character string segmentation would be greatly impacted by character string tilt resulted from different imaging angle. A character string envelope based vertical tilt correction method is proposed in this paper according to VLP's symmetry characteristic...
Mixed resolution format plays an important role in 3DTV coding scheme. In recent years, several research works discussed the Super Resolution (SR) problem in Mixed resolution format, where the SR image is created using the up-sampled low resolution (LR) image and the high frequency components borrowed from the adjacent high resolution (HR) warping image. However, the quality of the obtained HR images...
In this paper, finite difference method and finite volume method are adopted to simulate the two-dimensional lid-driven cavity flow based on MAC with staggered mesh. Second-order central difference scheme is applied to discretize the convection and diffusion items respectively. Simulation results obtained are compared at different Reynolds number (100, 400, 1000) using grid points 20 -- 20, 40 --...
In this paper, based on the leg movement mode analysis, a novel human computer interaction (HCI) scheme with which users can interact with computer is presented. Firstly, an efficient valley point location algorithm is proposed to detect and separate the left and right leg, then an extended Mean Shift tracking algorithm with Kalman filter is applied to track the leg's movement, finally the movements...
This paper addressed super-resolution technology of image sequences. The image sequences included a lot of redundant and nonredundant information. To enhance the information of SR image, the nonredundant information should be fused into the SR image as much as possible. This paper proposed a novel SR algorithm based on clutter prediction, which extracted and employed the nonredundant information to...
Video stabilization is a technology to remove the dithering between frames in a video sequence by motion estimation, motion filter and motion compensation. In this paper, we focus on the motion estimation (ME) step which is known as the most important part for a successful video stabilization system because the latter processing heavily relies on it. However, traditional ME methods mainly hypothesize...
In this paper, we develop a coarse-to-fine method for the registration of the reference and target images, involving the 2D rigid transformation. The proposed method consists of four steps: utilizing Harris corner detector to extract the feature points in the reference and target images; corresponding these points by a novel feature points match algorithm based on voting strategy, which efficiently...
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