Results 1 to 10 of about 69,365 (263)
A fast region-based active contour for non-rigid object tracking and its shape retrieval [PDF]
PeerJ Computer Science, 2021 Conventional tracking approaches track objects using a rectangle bounding box. Gait, gesture and many medical analyses require non-rigid shape extraction.
Hiren Mewada +5 more
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Sketch-based shape retrieval [PDF]
ACM Transactions on Graphics, 2012 We develop a system for 3D object retrieval based on sketched feature lines as input. For objective evaluation, we collect a large number of query sketches from human users that are related to an existing data base of objects. The sketches turn out to be generally quite abstract with large local and global deviations from the original shape.
Marc Alexa, Mathias Eitz
exaly +4 more sources
ISPRS International Journal of Geo-Information, 2022 The shape encoding of geospatial objects is a key problem in the fields of cartography and geoscience. Although traditional geometric-based methods have made great progress, deep learning techniques offer a development opportunity for this classical ...
Xiongfeng Yan, Min Yang
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A novel approach for partial shape matching and similarity based on data envelopment analysis [PDF]
Компьютерная оптика, 2019 Due to the growing number of 3D objects in digital libraries, the task of searching and browsing models in an extensive 3D database has been the focus of considerable research in the area.
Khadija Arhid +5 more
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Retrieval on Parametric Shape Collections [PDF]
ACM Transactions on Graphics, 2017 While collections of parametric shapes are growing in size and use, little progress has been made on the fundamental problem of shape-based matching and retrieval for parametric shapes in a collection. The search space for such collections is both discrete (number of shapes) and continuous (parameter values).
Adriana Schulz +5 more
openaire +1 more source
Shape measures for image retrieval [PDF]
Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205), 2002 One of the main goals in content-based image retrieval is to incorporate shape into the process in a reliable manner. In order to overcome the difficulties of directly obtaining shape information (in particular avoiding region segmentation) we develop several shape measures that tackle the problem in an indirect manner, requiring only a minimal amount ...
George Gagaudakis, Paul L. Rosin
openaire +1 more source
Content-based image retrieval using a fusion of global and local features
ETRI Journal, 2023 Color, texture, and shape act as important information for images in human recognition. For content-based image retrieval, many studies have combined color, texture, and shape features to improve the retrieval performance.
Hee Hyung Bu, Nam Chul Kim, Sung Ho Kim
doaj +1 more source
Similar shape retrieval in MARS [PDF]
2000 IEEE International Conference on Multimedia and Expo. ICME2000. Proceedings. Latest Advances in the Fast Changing World of Multimedia (Cat. No.00TH8532), 2002 This paper presents a novel approach to representing 2D shapes that adaptively models different portions of the shape at different resolutions, having higher resolution where it improves the quality of the representation and lower resolution elsewhere. The proposed representation is invariant to scale, translation and rotation.
Kaushik Chakrabarti +3 more
openaire +1 more source
Dummy-atom modelling of stacked and helical nanostructures from solution scattering data
IUCrJ, 2018 The availability of dummy-atom modelling programs to determine the shape of monodisperse globular particles from small-angle solution scattering data has led to outstanding scientific advances.
Max Burian, Heinz Amenitsch
doaj +1 more source
Motion Segmentation and Retrieval for 3D Video Based on Modified Shape Distribution
EURASIP Journal on Advances in Signal Processing, 2007 A similar motion search and retrieval system for 3D video are presented based on a modified shape distribution algorithm. 3D video is a sequence of 3D models made for a real-world object.
Kiyoharu Aizawa, Toshihiko Yamasaki
doaj +2 more sources