Results 11 to 20 of about 69,365 (263)
Investigating the Bag-of-Words Method for 3D Shape Retrieval
EURASIP Journal on Advances in Signal Processing, 2010 This paper investigates the capabilities of the Bag-of-Words (BWs) method in the 3D shape retrieval field. The contributions of this paper are (1) the 3D shape retrieval task is categorized from different points of view: specific versus generic, partial ...
Afzal Godil, Xiaolan Li
doaj +2 more sources
Proceedings of the 13th annual ACM international conference on Multimedia, 2005 This paper introduces a measure for computing the dissimilarity between multiple polylines and a polygon based on the turning function, and describes a part-based retrieval system using that dissimilarity measure. This dissimilarity can be efficiently computed in time O(kmn log mn), where m denotes the number of vertices in the polygon, and n is the ...
Tanase, M., Veltkamp, R.C.
openaire +3 more sources
An Application of Manifold Learning in Global Shape Descriptors
Algorithms, 2019 With the rapid expansion of applied 3D computational vision, shape descriptors have become increasingly important for a wide variety of applications and objects from molecules to planets.
Fereshteh S. Bashiri +4 more
doaj +1 more source
Shape Retrieval With Geometrically Characterized Contour Partitions
IEEE Access, 2015 This paper proposes a new computational method for retrieving shapes under unpredictable conditions such as when occlusion, geometric distortion, and differences in image resolution occur simultaneously.
Yuma Matsuda +2 more
doaj +1 more source
On-Orbit Characterization of TanSat Instrument Line Shape Using Observed Solar Spectra
Remote Sensing, 2022 The Chinese carbon dioxide measurement satellite (TanSat) has collected a large number of measurements in the solar calibration mode. To improve the accuracy of XCO2 retrieval, the Instrument Line Shape (ILS, also known as the slit function) must be ...
Zhaonan Cai +6 more
doaj +1 more source
Capturing Shape and Text for Retrieval [PDF]
Electronic Workshops in Computing, 1995 We present a system for content-based retrieval of line drawings. Line drawings are schematic diagrams consisting of two kinds of information, text and graphics. The textual part is indexed from the results of word recognition. The indexing for the graphic content uses no a-priori knowledge about the content of a drawing and depends only on features ...
Oliver Lorenz, Gladys Monagan
openaire +2 more sources
Chordiogram image descriptor based on visual attention model for image retrieval
Array, 2020 A novel shape-based image retrieval is presented in this study. The foreground and background contents of images are strongly concealed, so they are represented individually to reduce their influence on each other in the proposed approach.
S. Sathiamoorthy +2 more
doaj +1 more source
3DMolNavi: A web-based retrieval and navigation tool for flexible molecular shape comparison
BMC Bioinformatics, 2012 Background Many molecules of interest are flexible and undergo significant shape deformation as part of their function, but most existing methods of molecular shape comparison treat them as rigid shapes, which may lead to incorrect measure of the shape ...
Liu Yu-Shen +3 more
doaj +1 more source
Local Geometric Features Extraction and Matching Algorithm of Cultural Relic Surface Based on Shape Index [PDF]
Jisuanji gongcheng, 2016 The global shape retrieval is used for relic model which has the characteristics of similar overall shape and obvious detail difference.Due to the limitation of accuracy,it is difficult to obtain satisfactory retrieval results.So this paper proposes a ...
ZHOU Jilai,ZHOU Mingquan,GENG Guohua,WANG Xiaofeng
doaj +1 more source
From Content-Based Image Retrieval by Shape to Image Annotation
Advances in Electrical and Computer Engineering, 2010 In many areas such as commerce, medical investigations, and others, large collections of digital images are being created. Search operations inside these collections of images are usually based on low-level features of objects contained in an image ...
MOCANU, I.
doaj +1 more source