6,090 Hits in 2.6 sec

Enhanced Quadratic Video Interpolation [article]

Yihao Liu and Liangbin Xie and Li Siyao and Wenxiu Sun and Yu Qiao and Chao Dong
2020 arXiv   pre-print
In this work, we further improve the performance of QVI from three facets and propose an enhanced quadratic video interpolation (EQVI) model.  ...  Among them, a recent algorithm named quadratic video interpolation (QVI) achieves appealing performance.  ...  Quadratic video interpolation.  ... 
arXiv:2009.04642v1 fatcat:wyzc4a33orfa5oqo732cq4na6q

AIM 2020 Challenge on Video Temporal Super-Resolution [article]

Sanghyun Son, Jaerin Lee, Seungjun Nah, Radu Timofte, Kyoung Mu Lee
2020 arXiv   pre-print
The winning team proposes the enhanced quadratic video interpolation method and achieves state-of-the-art on the VTSR task.  ...  This paper reports the second AIM challenge on Video Temporal Super-Resolution (VTSR), a.k.a. frame interpolation, with a focus on the proposed solutions, results, and analysis.  ...  The XPixel team has proposed the Enhanced Quadratic Video Interpolation (EQVI) [20] method.  ... 
arXiv:2009.12987v1 fatcat:23cngd3i25bupb5lwszpzxthte

Extraction of high-resolution frames from video sequences

R.R. Schultz, R.L. Stevenson
1996 IEEE Transactions on Image Processing  
Keywords|Discontinuities, image enhancement, image sequence processing, interpolation, MAP estimation, scan conversion, stochastic image models, video sequence processing. I.  ...  Finally, the video frame extraction algorithm is used for the motion compensated scan conversion of interlaced video data, with a visual comparison to the resolution enhancement obtained from progressively-scanned  ...  Previously proposed methods, from bilinear and spline interpolation to quadratic functional minimization, result in smooth solutions to the image interpolation problem.  ... 
doi:10.1109/83.503915 pmid:18285187 fatcat:tc3hejta2zf6ficr3v7ahpo7gm

Efficient Space-time Video Super Resolution using Low-Resolution Flow and Mask Upsampling [article]

Saikat Dutta, Nisarg A. Shah, Anurag Mittal
2021 arXiv   pre-print
To this extent, we first interpolate in LR space using quadratic modeling. Input LR frames are super-resolved using a state-of-the-art Video Super-Resolution method.  ...  A simplistic solution is the sequential running of Video Super Resolution and Video Frame interpolation models.  ...  [39] learned self-supervised task-specific optical flow for various Video enhancement problems, including temporal interpolation. Niklaus et al.  ... 
arXiv:2104.05778v3 fatcat:cbgo3l5sxbdsdf77vcogmesx5y

PDWN: Pyramid Deformable Warping Network for Video Interpolation

Zhiqi Chen, Ran Wang, Haojie Liu, Yao Wang
2021 IEEE Open Journal of Signal Processing  
Video interpolation aims to generate a non-existent intermediate frame given the past and future frames.  ...  Lastly, a context enhancement network further enhances the contextual detail of the final output.  ...  VIDEO INTERPOLATION Video interpolation has been extensively explored in the literature [3] - [10] , [16] , [17] .  ... 
doi:10.1109/ojsp.2021.3075879 fatcat:thzkitahwndynp5lhfxmgninqi

AIM 2019 Challenge on Video Temporal Super-Resolution: Methods and Results [article]

Seungjun Nah, Sanghyun Son, Radu Timofte, Kyoung Mu Lee
2020 arXiv   pre-print
This paper reviews the first AIM challenge on video temporal super-resolution (frame interpolation) with a focus on the proposed solutions and results.  ...  From low-frame-rate (15 fps) video sequences, the challenge participants are asked to submit higher-framerate (60 fps) video sequences by estimating temporally intermediate frames.  ...  Teams and affiliations AIM 2019 team Title: AIM 2019 Challenge on Video Temporal Super-  ... 
arXiv:2005.01233v1 fatcat:aqxpmzat7jcwdiztapx5sttceq

Non-linear Motion Estimation for Video Frame Interpolation using Space-time Convolutions [article]

Saikat Dutta, Arulkumar Subramaniam, Anurag Mittal
2022 arXiv   pre-print
Video frame interpolation aims to synthesize one or multiple frames between two consecutive frames in a video.  ...  ., quadratic).  ...  Introduction Video frame interpolation (VFI) (also known as Video temporal super-resolution) is a significant video enhancement problem which aims to synthesize one or more visually coherent frames between  ... 
arXiv:2201.11407v2 fatcat:uily6c7mzja3pg6lx7yiyl7hva

The Novel Bilateral Quadratic Interpolation Image Super-resolution Algorithm

Gengyi Liu, School of Information Science and Engineering, Southeast University, Nanjing, 211189, China
2021 International Journal of Image Graphics and Signal Processing  
We translate interpolation areas of the pixels to the specified area to construct the bilateral quadratic interpolation surfaces.  ...  This paper proposed a new method of image super-resolution algorithm based on bilateral quadratic interpolation.  ...  Each area uses different interpolation models to construct its amplifying area [9] . Thus, a multi-scale detail enhanced image is constructed.  ... 
doi:10.5815/ijigsp.2021.03.05 fatcat:izcbww7ctzekhcieqv2kd36wlu

Higher order prediction for sub-pixel motion estimation

Damith J. Mudugamuwa, Xiangjian He, Chung-Hyun Ahn, Jie Yang
2009 2009 16th IEEE International Conference on Image Processing (ICIP)  
Estimating motion between two frames of a video sequence, up to sub-pixel accuracy, is a critical task for many image processing applications.  ...  Applying these fast block search algorithms to up-sampled and interpolated frames can produce good results but with significant increase in computations.  ...  QUADRATIC PREDICTION Quadratic functions have been used to model the SAD surface for the purpose of SPMV prediction in video coding [1, 2] .  ... 
doi:10.1109/icip.2009.5413398 dblp:conf/icip/MudugamuwaHAY09 fatcat:eigusjbr7zgjnd5pd726zhu42i

How to perform AMP? Cubic adjustments for improving the QoE

Mario Montagud, Fernando Boronat, Bernardino Roig, Almanzor Sapena
2017 Computer Communications  
It has also been proved and discussed that higher-order polynomial interpolation methods are less convenient than cubic ones.  ...  In particular, we propose a novel AMP strategy, called Cubic AMP, which is based on employing a cubic interpolation method to adjust a deviated playout point to a given reference.  ...  Our Cubic AMP strategy outperforms the other existing Linear and Quadratic AMP strategies (based on adopting linear and quadratic interpolation methods, respectively) in terms of the smoothness of the  ... 
doi:10.1016/j.comcom.2017.01.017 fatcat:ldflgiivrnck7o5kf4667iv6zm

PDWN: Pyramid Deformable Warping Network for Video Interpolation [article]

Zhiqi Chen, Ran Wang, Haojie Liu, Yao Wang
2021 arXiv   pre-print
Video interpolation aims to generate a non-existent intermediate frame given the past and future frames.  ...  Following the recent development in using deformable convolution (DConv) for video interpolation, we propose a light but effective model, called Pyramid Deformable Warping Network (PDWN).  ...  Video interpolation Video interpolation has been extensively explored in the literature [3, 4, 8, 12, 14, 16, 18, 20, 27, 28] .  ... 
arXiv:2104.01517v1 fatcat:rw67skk25rfpld6udrwposoqey

Wyner-Ziv side information generation using a higher order piecewise trajectory temporal interpolation algorithm

Mobolaji O. Akinola, Laurence S. Dooley, Patrick K. C. Wong
2011 International Conference on Graphic and Image Processing (ICGIP 2011)  
temporal interpolation-based approaches.  ...  A key constraint governing DVC performance is the quality of side information (SI), a coarse representation of original video frames which are not available at the decoder.  ...  Traditionally, linear motion compensated temporal interpolation (LMCTI) has been used in SI generation [3] [4] [5] , with recently proposed enhancements including hierarchical temporal interpolation  ... 
doi:10.1117/12.913459 fatcat:2md27oqnjjhufmm7en7lli24be

Data Elimination cum Interpolation for Imputation: A Robust Preprocessing Concept for Human Motion Data

C.K. Chan, W.P. Loh, I. Abd Rahim
2013 Procedia - Social and Behavioral Sciences  
The findings demonstrated that data preprocessing using data elimination coupling with interpolation for imputation enhances the quality of human motion input data for better classification accuracy.  ...  The video motions were transformed into numerical data with the aid of Photoshop tool in order to obtain the body segment markers in form of rotation angles and coordinates in the 2-dimensional format.  ...  The interpolation model was created based on best fundamental polynomial regression fitting from first to third degree (i.e. linear, quadratic and cubic).  ... 
doi:10.1016/j.sbspro.2013.08.411 fatcat:ruk25yzbgrgu5ehafgvgsjvw3q

Image sequence processing for videowall visualization

Alessandro Skarabot, Giovanni Ramponi, Domenico Toffoli, Edward R. Dougherty, Jaakko T. Astola
2000 Nonlinear Image Processing XI  
The scheme consists in a deinterlacing, an interpolation and an optional enhancement algorithm; its hardware implementation requires a low computational cost.  ...  Finally the contrast enhancement algorithm is a modi ed Unsharp Masking technique: a polynomial function is added to modulate the sharpening signal, which allows to discriminate between noise and signal  ...  The scheme consists in a deinterlacing, an interpolation and an optional enhancement algorithm.  ... 
doi:10.1117/12.379387 dblp:conf/einip/SkarabotRT00 fatcat:oow5qtfph5adnij7ofm2g25nfi

All at Once: Temporally Adaptive Multi-Frame Interpolation with Advanced Motion Modeling [article]

Zhixiang Chi, Rasoul Mohammadi Nasiri, Zheng Liu, Juwei Lu, Jin Tang, Konstantinos N Plataniotis
2021 arXiv   pre-print
Recent advances in high refresh rate displays as well as the increased interest in high rate of slow motion and frame up-conversion fuel the demand for efficient and cost-effective multi-frame video interpolation  ...  To that regard, inserting multiple frames between consecutive video frames are of paramount importance for the consumer electronics industry.  ...  Introduction Video frame interpolation targets generating new frames for the moments in which no frame is recorded.  ... 
arXiv:2007.11762v2 fatcat:coztgyzl6zc2jnkap6xjdnnbpu
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