Results 41 to 50 of about 7,238,657 (296)

Unsupervised Local Feature Hashing for Image Similarity Search [PDF]

open access: yes, 2016
The potential value of hashing techniques has led to it becoming one of the most active research areas in computer vision and multimedia. However, most existing hashing methods for image search and retrieval are based on global feature representations ...
Liu, Li, Shao, Ling, Yu, Mengyang
core   +1 more source

MV-LFN: Multi-view based local information fusion network for 3D shape recognition

open access: yesVisual Informatics, 2021
3D shape recognition is a challenging task due to the difficulty of representing the complex structure of 3D shapes. Recently, the view-based approaches that utilize the multiple views rendered from the shape for visual information extraction and feature
Jing Zhang   +4 more
doaj   +1 more source

Learning Local Feature Descriptors Using Convex Optimisation

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2014
The objective of this work is to learn descriptors suitable for the sparse feature detectors used in viewpoint invariant matching. We make a number of novel contributions towards this goal. First, it is shown that learning the pooling regions for the descriptor can be formulated as a convex optimisation problem selecting the regions using sparsity ...
Simonyan, K, Vedaldi, A, Zisserman, A
openaire   +3 more sources

A Local Discrete Feature Histogram for Point Cloud Feature Representation

open access: yesApplied Sciences
Local feature descriptors are a critical problem in computer vision; the majority of current approaches find it difficult to achieve a balance between descriptiveness, robustness, compactness, and efficiency.
Linjing Jia   +5 more
doaj   +1 more source

SGHs for 3D local surface description

open access: yesIET Computer Vision, 2020
This study proposes a distinctive and robust spatial and geometric histograms (SGHs) feature descriptor for three‐dimensional (3D) local surface description.
Sheng Ao   +4 more
doaj   +1 more source

Feature Matching and Position Matching Between Optical and SAR With Local Deep Feature Descriptor

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Image matching between the optical and synthetic aperture radar (SAR) is one of the most fundamental problems for earth observation. In recent years, many researchers have used hand-made descriptors with their expertise to find matches between optical ...
Yun Liao   +6 more
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan   +3 more
wiley   +1 more source

Learning a Local Feature Descriptor for 3D LiDAR Scans [PDF]

open access: yes2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2018
Accepted for IROS-2018. Project details and code: http://deep3d-descriptor.informatik.uni-freiburg.de/
Ayush Dewan   +2 more
openaire   +4 more sources

Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier   +18 more
wiley   +1 more source

Kernelized Multiview Projection for Robust Action Recognition [PDF]

open access: yes, 2015
Conventional action recognition algorithms adopt a single type of feature or a simple concatenation of multiple features. In this paper, we propose to better fuse and embed different feature representations for action recognition using a novel spectral ...
Liu, Li   +5 more
core   +2 more sources

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