Results 21 to 30 of about 8,058,581 (353)

Kernel Proposal Network for Arbitrary Shape Text Detection [PDF]

open access: yesIEEE Transactions on Neural Networks and Learning Systems, 2022
Segmentation-based methods have achieved great success for arbitrary shape text detection. However, separating neighboring text instances is still one of the most challenging problems due to the complexity of texts in scene images.
Shi-Xue Zhang   +4 more
semanticscholar   +1 more source

Shape detection algorithm applicable to solar estimation

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2021
This paper presents a bio-inspired hybrid algorithm for shape detection applicable to solar estimation in solar power plants. The objective is to locate and characterise the shape of a cloud over a solar power plant based on low level irradiance ...
J. M. Aguilar-López   +2 more
doaj   +1 more source

α-shapes for local feature detection [PDF]

open access: yesPattern Recognition, 2016
Local image features are routinely used in state-of-the-art methods to solve many computer vision problems like image retrieval, classification, or 3D registration. As the applications become more complex, the research for better visual features is still active.
Christos Varytimidis   +3 more
openaire   +2 more sources

Trainable COSFIRE Filters for Keypoint Detection and Pattern Recognition [PDF]

open access: yes, 2013
Background: Keypoint detection is important for many computer vision applications. Existing methods suffer from insufficient selectivity regarding the shape properties of features and are vulnerable to contrast variations and to the presence of noise or ...
Azzopardi, George,   +6 more
core   +1 more source

TransHist: Occlusion-robust shape detection in cluttered images

open access: yesComputational Visual Media, 2018
Shape matching plays an important role in various computer vision and graphics applications such as shape retrieval, object detection, image editing, image retrieval, etc.
Chu Han   +3 more
doaj   +1 more source

Representation and detection of deformable shapes [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2003
We describe some techniques that can be used to represent and detect deformable shapes in images. The main difficulty with deformable template models is the very large or infinite number of possible nonrigid transformations of the templates. This makes the problem of finding an optimal match of a deformable template to an image incredibly hard. Using a
openaire   +2 more sources

Direction-Coded Temporal U-Shape Module for Multiframe Infrared Small Target Detection

open access: yesIEEE Transactions on Neural Networks and Learning Systems, 2023
Infrared small target (IRST) detection aims at separating targets from cluttered background. Although many deep learning-based single-frame IRST (SIRST) detection methods have achieved promising detection performance, they cannot deal with extremely dim ...
Ruojing Li   +6 more
semanticscholar   +1 more source

Unsupervised learning of shape manifolds [PDF]

open access: yes, 2007
Classical shape analysis methods use principal component analysis to reduce the dimensionality of shape spaces. The basic assumption behind these methods is that the subspace corresponding to the major modes of variation for a particular class of shapes ...
Bhalerao, Abhir   +5 more
core   +1 more source

Automatic route planning for GPS art generation

open access: yesComputational Visual Media, 2019
In this paper, we present a novel approach to automated route generation of global positioning system (GPS) artwork. The term GPS artwork describes the generation of drawings by leaving virtual traces on digital maps.
Andre Waschk, Jens Krüger
doaj   +1 more source

Learning Robust Shape-Indexed Features for Facial Landmark Detection

open access: yesApplied Sciences, 2022
In facial landmark detection, extracting shape-indexed features is widely applied in existing methods to impose shape constraint over landmarks. Commonly, these methods crop shape-indexed patches surrounding landmarks of a given initial shape.
Xintong Wan, Yifan Wu, Xiaoqiang Li
doaj   +1 more source

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