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Conventional skeleton extraction methods require a closed boundary constraint to solve the problem. In natural images closed boundary constraint might not be easily satisfied due to the similarity of the object and its background, occlusion, etc. In this paper a novel approach based on the Delaunay triangulation to solve the skeleton extraction in natural images is proposed. The algorithm shows a...
Conventional skeleton extraction method usually limits its applicability due to the close curve or complete boundary constraint. Unfortunately in cluttered image or natural image, the close curve or complete boundary constraint happens all the time. Therefore a skeleton extraction algorithm with an incomplete boundary condition is proposed. The proposed method is based on the Delaunay triangulation...
Image inpainting is an active research field of image processing. Previous inpainting methods often require a long computational time to give sufficient results, especially due to the extensive search process of exemplar-based methods. This work improves a previous fast inpainting method based on local similarity, which achieves runtimes measured in tens of milliseconds per image, but often results...
A 3D object retrieval system is one of the most difficult system to archive. If 3D model can be used as a query to the retrieval system, it will become less difficult. Unfortunately, creating 3D model is not a trivial task. Usually, users have only 2D images (photos, sketches, etc.) as query images for the retrieval system. In the past, the query images will then have to be compared with every image...
A novel high-speed 3D object retrieval system is presented here. Since creating a 3D model as an input to the retrieval system is not trivial, a 2D image (photos, sketches, etc.) of the object is usually used instead. We present a new high-speed retrieval method by using skewness information. The images in the database will be represented by a skewness function. By using the proposed method, comparison...
This paper presents a novel 3D object retrieval system from a single query image. A 3D object retrieval system is one of the most difficult systems to archive. It will be much easier if users can input 3D model of the object and use it as a query to the retrieval system. Unfortunately, creating a 3D model from an object is not an easy task. Usually a 2D rendered image of the object (photos, sketches,...
Skeletonization, or automatic skeleton extraction, is a technology in 3DCG which automatically extract skeletons (i.e. bones, joints and their hierarchical structures) from 3D models. Such skeletons are important shape and pose descriptors for object representation, object recognition etc. Some existing skeletonization methods have difficulties in correctly extracting the position of joints. Some...
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