Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Block Matching"”.
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ENHANCED COMPUTATION TIME FOR FAST BLOCK MATCHING ALGORITHM
… to carry out motion compensated prediction is block matching algorithm. In this method, video frames are divided into a set of non-overlapped macroblocks; each target macroblock of the current frame is compared with the search area in the reference frame in order to find the best matching …
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Robust motion estimation techniques
… robust motion estimation techniques, such as block matching, motion intensity profile technique, and global motion estimation. Block matching has been widely used for motion estimation in video compression. This approach performs very well when there is only translational motion in the video …
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Design And Implementation Of Fast Motion Estimation In Modern Video Compression On GPU
… algorithm by replacing the traditional block matching method which comparing blocks pixel by pixel with a brand new method which based on lbp (local binary pattern) code. Our new method first encodes the original video frames into lbp code and then compares the blocks only using the lbp …
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Evaluation of stereo matching for mobile platforms with applications for assisting the visually impaired
… motivates the presented evaluation of stereo matching algorithms for mobile devices. This work investigates this potential for stereo matching on a mobile device for real-time applications, in terms of computation time and quality of depth inference. Several algorithms are tested on an Android …
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Patch-based Denoising Algorithms for Single and Multi-view Images
… images, respectively. A modification to the block matching 3D algorithm is proposed for single image denoising. An adaptive collaborative thresholding filter is proposed which consists of a classification map and a set of various thresholding levels and operators. These are exploited when the …
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Development of an AI-driven robotic manipulation framework
… rely on YOLOv7 for object detection, Semi-Global Block Matching (SGBM) for object localization, and Principal Component Analysis (PCA) for object orientation. Moreover, MoveIt is utilized for motion planning, and the simulation environment is powered by Gazebo. These components are seamlessly …
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Broadband World Modeling and Scene Reconstruction
… steps. The first is stereo correspondence using block matching algorithms with filtering to improve the quality of this matching process. The disparity maps are then transformed into 3D point clouds. These point clouds are filtered again before the registration process is done. The registration …
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Local Bundling of Disparity Maps for Improved Dense 3D Visual Reconstruction
… pairs of stereo images by SURF feature point matching, image rectification, matching of dense points with semi-global block matching, and optimization of camera pose and dense 3D point location using a stereo-constrained local bundle adjustment. The performance of the algorithm is evaluated …
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Automatic Positioning and Design of a Variable Baseline Stereo Boom
… a stereo correspondence algorithm, Semi-Global Block Matching, fails to create full reconstructions.
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Intelligent Side Information Generation in Distributed Video Coding
… vector estimations; (ii) an adaptive overlapped block motion compensation (AOBMC) model which reduces both blocking and overlapping artefacts in the SI emanating from the block matching algorithm; (iii) the development of an empirical mode switching algorithm; and (iv) an intelligent switching …
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Acquisitions d'IRM de diffusion à haute résolution spatiale : nouvelles perspectives grâce au débruitage spatialement adaptatif et angulaire
… L’algorithme Non Local Spatial and Angular Matching (NLSAM) se base sur les principes du block matching et du dictionary learning pour exploiter la redondance des données d’IRM de diffusion. Un seuillage sur les voisins angulaire est aussi réalisé à l’aide du sparse coding, où l’erreur de …
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Video-based motion detection for stationary and moving cameras
… homographies using prominent feature (PF) block matching, motion filtering and RANSAC for robust matching. Once the frame to base frame homographies are available the flux tensor motion detection module using local second derivative information is applied to detect moving salient features. …
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Adaptive nonlocal and structured sparse signal modeling and applications
… handle streaming video. By combining with a block matching (BM) technique, the learned model can effectively adapt to video data with various motions. The patches are constructed either from corresponding 2D patches in successive frames or using an online block matching technique. The …
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Depth estimation from 3D reconstructed scene using stereo vision
… process and disparity map by using the block matching in order to collect the corresponding pixels between both stereo images are important parameters to estimate the depth from the 3D reconstructed scene. The experiment results have been done by testing an object far from the stereo …
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Acoustic scattering by discontinuities in waveguides
… second new result of this thesis. We develop a matching scheme based on block matching intermediate expansions in a transform domain. The new technique permits the matching of expansions of a more general nature than previously possible, and may well have useful applications in other physical …
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Image Processing Algorithms for Diagnostic Analysis of Microcirculation
… stabilization. In the video stabilization step, block matching is applied to the video frames. Similarity is measured by cross-correlation coefficients. The main technique used in the segmentation step is multi-thresholding and pixel verification based on calculated geometric and contrast …