Results 21 to 30 of about 6,627,236 (313)

Deep Human Motion Detection and Multi-Features Analysis for Smart Healthcare Learning Tools

open access: yesIEEE Access, 2022
Unhealthy lifestyle causes several chronic diseases in humans. Many products are introduced to avoid such illnesses and provide e-learning-based healthcare services.
Fahima Hajjej   +8 more
doaj   +1 more source

Method of Step Detection and Counting Based on Measurements of Magnetic Field Variations

open access: yesSensors, 2021
Basic human activity recognition (HAR) and analysis is becoming a key aspect of tracking and identifying daily habits that can have a critical impact on healthy lifestyles by providing feedback on health status and warning of deterioration.
Patryk Łaś, Piotr Wiśniowski
doaj   +1 more source

Intelligent Object Tracking with an Automatic Image Zoom Algorithm for a Camera Sensing Surveillance System

open access: yesSensors, 2022
Current surveillance systems frequently use fixed-angle cameras and record a feed from those cameras. There are several disadvantages to such systems, including a low resolution for far away objects, a limited frame range and wasted disk space.
Shih-Chang Hsia   +3 more
doaj   +1 more source

A System for the Detection of Persons in Intelligent Buildings Using Camera Systems—A Comparative Study

open access: yesSensors, 2020
This article deals with the design and implementation of a prototype of an efficient Low-Cost, Low-Power, Low Complexity–hereinafter (L-CPC) an image recognition system for person detection.
Miroslav Schneider   +4 more
doaj   +1 more source

Motion streaks improve motion detection

open access: yesVision Research, 2007
A number of studies were conducted to determine whether motion-streaks assist motion extraction, and whether a purely motion-based model could account for any observed facilitation. A 3-frame global-motion stimulus was used. Signal dots were manipulated in order to control the strength of the motion-streak.
Edwards, Mark, Crane, Monique
openaire   +3 more sources

Detection and Tracking of Independent Motion. [PDF]

open access: yesProcedings of the British Machine Vision Conference 1995, 1995
We describe an efficient method of using a translating camera to detect and track independently translating objects and assess the likelihood of a collision. By analysing the underlying geometry, it is shown that the tracking is reduced to two independent linear searches for a single feature in the image plane.
Clarke, JC, Zisserman, A
openaire   +2 more sources

Reducing Bitrate and Increasing the Quality of Inter Frame by Avoiding Quantization Errors in Stationary Blocks [PDF]

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2020
In image compression and video coding, quantization error helps to reduce the amount of information ofthe high frequency components. However, in temporal prediction the quantization error contributes its valueas noise in the total residual information ...
Xuan-Tu Tran   +5 more
doaj   +1 more source

Learning to detect Motion Boundaries [PDF]

open access: yes2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2015
We propose a learning-based approach for motion boundary detection. Precise localization of motion boundaries is essential for the success of optical flow estimation, as motion boundaries correspond to discontinuities of the optical flow field. The proposed approach allows to predict motion boundaries, using a structured random forest trained on the ...
Philippe Weinzaepfel   +3 more
openaire   +2 more sources

Nonlinear Motion Detection [PDF]

open access: yes, 2009
This work presents new ideas in multidimensional signal theory: an isotropic quadrature filter approach for extracting local features of arbitrary curved signals without the use of any steering techniques. We unify scale space, local amplitude, orientation, phase and curvature in one framework. The main idea is to lift up signals by a conformal mapping
Lennart Wietzke, Gerald Sommer
openaire   +1 more source

Spiking Neurons Integrating Visual Stimuli Orientation and Direction Selectivity in a Robotic Context

open access: yesFrontiers in Neurorobotics, 2018
Visual motion detection is essential for the survival of many species. The phenomenon includes several spatial properties, not fully understood at the level of a neural circuit.
André Cyr   +4 more
doaj   +1 more source

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