Results 21 to 30 of about 5,057,517 (289)

LOCAL FEATURE EXTRACTION IN IMAGES

open access: yesInformation, Computing and Intelligent systems, 2021
The methods of the local feature point extraction are analyzed. The analysis shows that the most effective detectors are based on the brightness gradient determination. They usually use the Harris angle detector, which is complex in calcu­la­tions.
Anatoliy Sergiyenko   +2 more
openaire   +3 more sources

Aggregated Deep Local Features for Remote Sensing Image Retrieval [PDF]

open access: yes, 2019
Remote Sensing Image Retrieval remains a challenging topic due to the special nature of Remote Sensing Imagery. Such images contain various different semantic objects, which clearly complicates the retrieval task.
Bondarev, Egor   +3 more
core   +3 more sources

Making Sense of Neuromorphic Event Data for Human Action Recognition

open access: yesIEEE Access, 2021
Neuromorphic vision sensors provide low power sensing and capture salient spatial-temporal events. The majority of the existing neuromorphic sensing work focus on object detection.
Salah Al-Obaidi   +2 more
doaj   +1 more source

A Contrastive Model with Local Factor Clustering for Semi-Supervised Few-Shot Learning

open access: yesMathematics, 2023
Learning novel classes with a few samples per class is a very challenging task in deep learning. To mitigate this issue, previous studies have utilized an additional dataset with extensively labeled samples to realize transfer learning.
Hexiu Lin   +3 more
doaj   +1 more source

Facial expression recognition based on multi branch structure [PDF]

open access: yesE3S Web of Conferences, 2021
Facial expression recognition (FER) is an important means for machines to perceive human emotions and interact with human beings. Most of the existing facial expression recognition methods only use a single convolutional neural network to extract the ...
Xie Yuqing   +5 more
doaj   +1 more source

Automatic discovery of image families: Global vs. local features [PDF]

open access: yes, 2009
Gathering a large collection of images has been made quite easy by social and image sharing websites, e.g. flickr.com. However, using such collections faces the problem that they contain a large number of duplicates and highly similar images.
Aly, Mohamed   +3 more
core   +1 more source

Spectral Convolution Feature-Based SPD Matrix Representation for Signal Detection Using a Deep Neural Network

open access: yesEntropy, 2020
Convolutional neural networks have powerful performances in many visual tasks because of their hierarchical structures and powerful feature extraction capabilities. SPD (symmetric positive definition) matrix is paid attention to in visual classification,
Jiangyi Wang   +3 more
doaj   +1 more source

Multiplex networks in metropolitan areas: generic features and local effects [PDF]

open access: yes, 2015
Most large cities are spanned by more than one transportation system. These different modes of transport have usually been studied separately: it is however important to understand the impact on urban systems of the coupling between them and we report in
Barthelemy, Marc   +3 more
core   +5 more sources

Gait-Based Person Identification Robust to Changes in Appearance

open access: yesSensors, 2013
The identification of a person from gait images is generally sensitive to appearance changes, such as variations of clothes and belongings. One possibility to deal with this problem is to collect possible subjects’ appearance changes in a database ...
Koji Uchino, Yumi Iwashita, Ryo Kurazume
doaj   +1 more source

High-Speed Videography Reveals How Honeybees Can Turn a Spatial Concept Learning Task Into a Simple Discrimination Task by Stereotyped Flight Movements and Sequential Inspection of Pattern Elements

open access: yesFrontiers in Psychology, 2018
Honey bees display remarkable visual learning abilities, providing insights regarding visual information processing in a miniature brain. It was discovered that bees can solve a task that is generally viewed as spatial concept learning in primates ...
Marie Guiraud   +4 more
doaj   +1 more source

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