Results 21 to 30 of about 55,702 (256)
River Surface Velocimetry Based on Virtual River Dataset and Modulated-RAFT
IEEE Access, 2023 In recent years, there has been a surge of interest in image-based velocimetry methods for river surface velocity (RSV) estimation due to their efficiency and accuracy, including large-scale particle image velocimetry (LSPIV), space-time image ...
Yixin Wu +5 more
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3D Wavelet-Based Optical Flow Estimation [PDF]
Engineering and Technology Journal, 2007 In this paper, a new algorithm for accurate optical flow estimation using discretewavelet approximation is proposed. The image sequences are always assumed tobe noiseless in the computation of optical flow, since there is always a method thatcan perform ...
Mutaz. AbdulWahab
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Ghost-removal image warping for optical flow estimation [PDF]
MATEC Web of Conferences, 2019 Traditional image warping methods used in optical flow estimation usually adopt simple interpolation strategies to obtain the warped images. But without considering the characteristic of occluded regions, the traditional methods may result in undesirable
Wang Song, Wang Zengfu
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Stereo vision-based variational optical flow estimation [PDF]
E3S Web of Conferences, 2020 Optical flow computation is one of the most important tasks in computer vision. The article deals with a modification of the variational method of the optical flow computation, according to its application in stereo vision.
Belyakov P. V. +3 more
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A New Fast Method for Optical Flow Estimation Using Discrete Wavelet Transform [PDF]
Engineering and Technology Journal, 2005 In this paper, a new algorithm for accurate optical flow estimation using discrete wavelet approximation is proposed. The image sequences are always assumed to be noiseless in the computation of optical flow, since there is always a method that can ...
M. . AbdulWahab, W . Mahmoud, H. AL-Taai
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Large Displacement Optical Flow Estimation Based on Robust Interpolation of Sparse Correspondences
IEEE Access, 2020 Recently, the interpolation of correspondences method has been widely used in optical flow estimation, because it produces an accurate flow field and costs little runtimes.
Shidong Shi +5 more
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Motion Vector Field Estimation Using Brightness Constancy Assumption and Epipolar Geometry Constraint [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 In most Photogrammetry and computer vision tasks, finding the corresponding points among images is required. Among many, the Lucas-Kanade optical flow estimation has been employed for tracking interest points as well as motion vector field estimation ...
S. Hosseinyalamdary, A. Yilmaz
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UAV attitude estimation based on MARG and optical flow sensors using gated recurrent unit
International Journal of Distributed Sensor Networks, 2021 Three-dimensional attitude estimation for unmanned aerial vehicles is usually based on the combination of magnetometer, accelerometer, and gyroscope (MARG).
Xiaoqin Liu +4 more
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Guiding Optical Flow Estimation [PDF]
Procedings of the British Machine Vision Conference 2003, 2003 We show how optical flow estimates can be combined with boundary estimation to improve estimates of motion. The improvement is associated with blending of estimates from complementary bases of operation. The paper combines a phase-based method for optical flow with a time extended version of the phase congruency operator. By evaluation on synthetic and
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Segmentation and estimation of the optical flow [PDF]
, 1995 We propose an algorithm for simultaneous estimation and segmentation of the optical flow. The moving scene is decomposed in different regions with respect to their motion, by means of a pattern recognition scheme. The feature vectors are drawn from the image sequence and they are used to train a Radial Basis Functions (RBF) neural network. The learning
Adrian G. Bors, Ioannis Pitas
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