Results 11 to 20 of about 369,316 (285)

Colour Morphological Scale-Spaces for Image Segmentation [PDF]

open access: yesProcedings of the British Machine Vision Conference 2005, 2005
Morphological scale-spaces have become an important tool for analysing greyscale images. However, their extension to colour images has proven elusive until recently. In this paper an original evaluation of two recently proposed colour sieves is presented, both algorithmically and in terms of their computational and segmentation performance.
David Gimenez, Adrian N. Evans
openaire   +1 more source

Scale Space Operators on Hierarchies of Segmentations [PDF]

open access: yes, 2013
A hierarchy of segmentations(partitions) is a multiscale set representation of the image. This paper introduces a new set of scale space operators or transformations on the space of hierarchies of partitions. An ordering of hierarchies is proposed which is endowed by an ω-ordering based on a global energy over the classes of the hierarchy.
Kiran, Bangalore Ravi, Serra, Jean
openaire   +2 more sources

HT-Net: A Hybrid Transformer Network for Fundus Vessel Segmentation

open access: yesSensors, 2022
Doctors usually diagnose a disease by evaluating the pattern of abnormal blood vessels in the fundus. At present, the segmentation of fundus blood vessels based on deep learning has achieved great success, but it still faces the problems of low accuracy ...
Xiaolong Hu, Liejun Wang, Yongming Li
doaj   +1 more source

A rapid detection method for UAV-borne high-resolution SAR image targets [PDF]

open access: yesZhihui kongzhi yu fangzhen, 2023
Aiming at the limited space and resources of the UAV platform, the inaccurate target labeling and excessive calculation amount of high-resolution SAR image detection, a rapid detection method for UAV-borne high-resolution SAR image targets is proposed ...
WANG Zhongbao, YIN Kuiying
doaj   +1 more source

Identifying Components in 3D Density Maps of Protein Nanomachines by Multi-scale Segmentation [PDF]

open access: yes, 2009
Segmentation of density maps obtained using cryo-electron microscopy (cryo-EM) is a challenging task, and is typically accomplished by time-intensive interactive methods.
Chiu, Wah   +3 more
core   +1 more source

DroTrack: High-speed Drone-based Object Tracking Under Uncertainty

open access: yes, 2020
We present DroTrack, a high-speed visual single-object tracking framework for drone-captured video sequences. Most of the existing object tracking methods are designed to tackle well-known challenges, such as occlusion and cluttered backgrounds.
Hamdi, Ali, Kim, Du Yong, Salim, Flora
core   +1 more source

A hierarchical image segmentation algorithm based on an observation scale [PDF]

open access: yes, 2012
International audienceHierarchical image segmentation provides a region-oriented scale-space, i.e., a set of image segmentations at different detail levels in which the segmentations at finer levels are nested with respect to those at coarser levels ...
Cousty, Jean   +3 more
core   +4 more sources

Scale-space for empty catheter segmentation in PCI fluoroscopic images [PDF]

open access: yesInternational Journal of Computer Assisted Radiology and Surgery, 2017
In this article, we present a method for empty guiding catheter segmentation in fluoroscopic X-ray images. The guiding catheter, being a commonly visible landmark, its segmentation is an important and a difficult brick for Percutaneous Coronary Intervention (PCI) procedure modeling.In number of clinical situations, the catheter is empty and appears as ...
Bacchuwar, Ketan   +3 more
openaire   +3 more sources

Towards hand biometrics in mobile devices [PDF]

open access: yes, 2011
The increasing demand of security oriented to mobile applications has raised the attention to biometrics, as a proper and suitable solution for providing secure environment to mobile devices. With this aim, this document presents a biometric system based
Guerra Casanova, Javier   +3 more
core   +5 more sources

Selected Applications of Scale Spaces in Microscopic Image Analysis

open access: yesCybernetics and Information Technologies, 2015
Image segmentation methods can be classified broadly into two classes: intensity-based and geometry-based. Edge detection is the base of many geometry-based segmentation approaches.
Prodanov Dimiter   +2 more
doaj   +1 more source

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