Results 81 to 90 of about 1,264,081 (186)

Integrating Fine-Grained Classification and Motion Relation Analysis for Face Anti-Spoofing

IEEE Access
Face Anti-Spoofing (FAS) is the core technical means used to protect face recognition systems from face presentation attack. Facial movement is a commonly used cue in FAS.
Ziyang Cheng, Xiafen Zhang
doaj   +1 more source

Propose of heel-strike and toe-off frame detection from gait video with optical flow and edge detection

Nihon Kikai Gakkai ronbunshu
We expect that gait will be useful information for detecting wandering and managing the health of elderly people utilizing a monitoring support robot. However, some kind of sensor is needed to extract pedestrian gait features.
Junya KOBAYASHI, Nobuaki NAKAZAWA
doaj   +1 more source

On discontinuous optical flow

COMPUTING AND INFORMATICS, 2012
This paper deals with an analysis of image motion in frequency space with respect to motion discontinuities and surface translucence. The frequency structure of motion discontinuities due to occlusion is derived under models of constant and linear optical flow. Authors demonstrate its various geometrical properties.
S. S. Beauchemin, J. L. Barron
openaire   +2 more sources

An Optical Flow- and Machine Learning-Based Fall Recognition Model for Stair Accessing Service Robots

Mathematics
One of the reasons for the lack of commercial staircase service robots is the risk and severe impact of them falling down the stairs. Thus, the development of robust fall damage mitigation mechanisms is important for the commercial adoption of staircase ...
Jun Hua Ong, Abdullah Aamir Hayat, Mohan Rajesh Elara, Kristin Lee Wood   +3 more
doaj   +1 more source

Augmented Reality Using Optical Flow [PDF]

Annals of computer science and information systems, 2015
Konrad Koniarski
doaj   +1 more source

Amodal Optical Flow

2024 IEEE International Conference on Robotics and Automation (ICRA)
Optical flow estimation is very challenging in situations with transparent or occluded objects. In this work, we address these challenges at the task level by introducing Amodal Optical Flow, which integrates optical flow with amodal perception. Instead of only representing the visible regions, we define amodal optical flow as a multi-layered pixel ...
Luz, Maximilian, Mohan, Rohit, Sekkat, Ahmed Rida, Sawade, Oliver, Matthes, Elmar, Brox, Thomas, Valada, Abhinav   +6 more
openaire   +2 more sources

Short range tracking of rainy clouds by multi-image flow processing of X-band radar data

EURASIP Journal on Advances in Signal Processing, 2011
Two innovative algorithms for motion tracking and monitoring of rainy clouds from radar images are proposed. The methods are generalizations of classical optical flow techniques, including a production term (modelling formation, growth or depletion of ...
Mesin Luca
doaj  

Regularization for Unsupervised Learning of Optical Flow. [PDF]

Sensors (Basel), 2023
Long L, Lang J.
europepmc   +1 more source

Conveyor belt speed detection via the synergistic fusion of optical flow and feature matching. [PDF]

Sci Rep
Miao D, Wang Y, Bai Y, Fu G, Wang J.
europepmc   +1 more source

TDE-3: an improved prior for optical flow computation in spiking neural networks. [PDF]

Front Neurosci
Yedutenko M, Paredes-Vallés F, Khacef L, de Croon G.   +3 more
europepmc   +1 more source