Results 31 to 40 of about 5,849,321 (239)

Shape Retrieval With Geometrically Characterized Contour Partitions

open access: yesIEEE 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

Marine-Hydraulic-Oil-Particle Contaminant Identification Study Based on OpenCV

open access: yesJournal of Marine Science and Engineering, 2022
Particulate pollutants mixed in hydraulic oil will lead to the failure of the marine hydraulic system. Nowadays, the current identification methods of particulate pollutants in oil make it challenging to obtain the specific parameters of pollutants.
Chenyong Wang   +6 more
doaj   +1 more source

Real time hand gesture recognition including hand segmentation and tracking [PDF]

open access: yes, 2006
In this paper we present a system that performs automatic gesture recognition. The system consists of two main components: (i) A unified technique for segmentation and tracking of face and hands using a skin detection algorithm along with handling ...
A. Shamaie   +4 more
core   +1 more source

Distance sets for shape filters and shape recognition [PDF]

open access: yesIEEE Transactions on Image Processing, 2003
We introduce a novel rich local descriptor of an image point, we call the (labeled) distance set, which is determined by the spatial arrangement of image features around that point. We describe a two-dimensional (2D) visual object by the set of (labeled) distance sets associated with the feature points of that object.
Grigorescu, Cosmin, Petkov, Nicolai
openaire   +3 more sources

Shape-based recognition of wiry objects [PDF]

open access: yes2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings., 2003
We present an approach to the recognition of complexshaped objects in cluttered environments based on edge cues. We first use example images of the desired object in typical backgrounds to train a classifier cascade which determines whether edge pixels in an image belong to an instance of the object or the clutter.
Owen, Carmichael, Martial, Hebert
openaire   +2 more sources

The Pascal Triangle of a Discrete Image: Definition, Properties and Application to Shape Analysis

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We define the Pascal triangle of a discrete (gray scale) image as a pyramidal arrangement of complex-valued moments and we explore its geometric significance.
Mireille Boutin, Shanshan Huang
doaj   +1 more source

Word shape analysis for a hybrid recognition system [PDF]

open access: yes, 2003
This paper describes two wholistic recognizers developed for use in a hybrid recognition system. The recognizers use information about the word shape. This information is strongly related to word zoning.
Powalka, RK, Sherkat, N, Whitrow, RJ
core   +1 more source

Supramolecular and Liquid Crystalline Contributions to the Assembly of Myofibril

open access: yesMolecules, 2020
We compare steps observed during the fibrillogenesis of myofibrils with the sequence of steps predictable by a recent analysis of the structurization and functioning of striated muscles.
Alberto Ciferri, Alvin L. Crumbliss
doaj   +1 more source

BodySpace: inferring body pose for natural control of a music player [PDF]

open access: yes, 2007
We describe the BodySpace system, which uses inertial sensing and pattern recognition to allow the gestural control of a music player by placing the device at different parts of the body.
Murray-Smith, R.   +2 more
core   +3 more sources

Shape retrieval by using multi-scale angle-based representation and dynamic label propagation

open access: yesIET Cyber-systems and Robotics, 2020
To improve the robustness and discrimination power of the triangle-area representation, a novel shape matching method based on multi-scale angle representation is proposed in this study.
Yanxia Yu   +6 more
doaj   +1 more source

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