Results 11 to 20 of about 60,644 (302)
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
Myerscough, Peter J +2 more
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Motion detail preserving optical flow estimation [PDF]
2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2010 A common problem of optical flow estimation in the multiscale variational framework is that fine motion structures cannot always be correctly estimated, especially for regions with significant and abrupt displacement variation. A novel extended coarse-to-fine (EC2F) refinement framework is introduced in this paper to address this issue, which reduces ...
Li Xu 0001 +2 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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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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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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Optical flow estimation for a periodic images sequence [PDF]
2008 15th IEEE International Conference on Image Processing, 2008 We propose a temporal modeling approach for determining image motion from a sequence of images wherein the inherent motion is periodic over time. To exploit the periodic nature of the motion, we use a Fourier harmonic representation to model the temporal evolution of the motion field for the entire sequence.
Ling Li 0006, Yongyi Yang
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Challenges for Optical Flow Estimates in Elastography [PDF]
, 2021 12 pages, 8 ...
Ekaterina Sherina +4 more
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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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BMC Medical Imaging, 2023 Background Ultrasonic echocardiography is commonly used for monitoring myocardial dysfunction. However, it has limitations such as poor quality of echocardiography images and subjective judgment of doctors.
Shanna Liu +10 more
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