Results 31 to 40 of about 4,160,080 (316)

Compressive Video Recovery Using Block Match Multi-Frame Motion Estimation Based on Single Pixel Cameras

open access: yesSensors, 2016
Compressive sensing (CS) theory has opened up new paths for the development of signal processing applications. Based on this theory, a novel single pixel camera architecture has been introduced to overcome the current limitations and challenges of ...
Sheng Bi   +4 more
doaj   +1 more source

Combined wavelet domain and motion compensated filtering compliant with video codecs [PDF]

open access: yes, 2007
In this paper, we introduce the idea of using motion estimation resources from a video codec for video denoising. This is not straightforward because the motion estimators aimed for video compression and coding, tolerate errors in the estimated motion ...
Jovanov, Ljubomir   +5 more
core   +2 more sources

A Novel Parallel Motion Estimation Design and Implementation on GPU

open access: yesIEEE Access, 2019
The development of high-resolution video mounts a serious challenge to the previous video coding standard. The appearance of the new generation standards greatly relieves the dilemma but increases the coding complexity dramatically.
Tao Zhang, Xinqi An, Xin Zhao, Xinyi Gao
doaj   +1 more source

Deep learning-based image reconstruction and motion estimation from undersampled radial k-space for real-time MRI-guided radiotherapy

open access: yesPhysics in Medicine and Biology, 2020
To enable magnetic resonance imaging (MRI)-guided radiotherapy with real-time adaptation, motion must be quickly estimated with low latency. The motion estimate is used to adapt the radiation beam to the current anatomy, yielding a more conformal dose ...
Maarten Terpstra   +7 more
semanticscholar   +1 more source

Backward adaptive pixel-based fast predictive motion estimation [PDF]

open access: yes, 2009
This letter presents a novel backward adaptive pixel-based fast predictive motion estimation (BAPME) scheme for lossless video compression. Unlike the widely used block-matching motion estimation techniques, this method predicts the motion on a pixel-by ...
Canagarajah, CN   +2 more
core   +2 more sources

Enhancement of Motion Estimation Robustness Against Noise and Brightness Variations in Digital Image Sequences [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2010
Motion estimation and compensation are main stages in hybrid video coding standards. Due to structural simplicity the block-matching motion estimation is the most used method in digital video technology.
Homayoun Mahdavi-Nasab
doaj  

Cardiac motion estimation from medical images: a regularisation framework applied on pairwise image registration displacement fields

open access: yesScientific Reports, 2020
Accurate cardiac motion estimation from medical images such as ultrasound is important for clinical evaluation. We present a novel regularisation layer for cardiac motion estimation that will be applied after image registration and demonstrate its ...
Hadi Wiputra   +4 more
doaj   +1 more source

Decomposition of Optical Flow on the Sphere [PDF]

open access: yes, 2014
We propose a number of variational regularisation methods for the estimation and decomposition of motion fields on the $2$-sphere. While motion estimation is based on the optical flow equation, the presented decomposition models are motivated by recent ...
Kirisits, Clemens   +2 more
core   +1 more source

Human motion correction and representation method from motion camera

open access: yesThe Journal of Engineering, 2017
Motion estimation is a basic issue for many computer vision tasks, such as human–computer interaction, motion objection detection and intelligent robot. In many practical scenes, the object movement goes with camera motion.
Hong-Bo Zhang   +4 more
doaj   +1 more source

VIBE: Video Inference for Human Body Pose and Shape Estimation

open access: yes, 2020
Human motion is fundamental to understanding behavior. Despite progress on single-image 3D pose and shape estimation, existing video-based state-of-the-art methods fail to produce accurate and natural motion sequences due to a lack of ground-truth 3D ...
Athanasiou, Nikos   +2 more
core   +1 more source

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