A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf
.
Filters
Scalable and coherent video resizing with per-frame optimization
2011
ACM Transactions on Graphics
original video cube deformed video cube original frames deformed frames Figure 1 : We introduce a scalable content-aware video retargeting method. ...
Recent work enforces temporal coherence of content-aware video warping by solving a global optimization problem over the entire video cube. ...
Chen for her help with the video materials and licensing. The usage of the video clips is permitted by ARS Film Production, Blender Foundation and MAMMOTH HD. ...
doi:10.1145/2010324.1964983
fatcat:yb2uz7mpgbcijhjq6jrkvsn3vu
Scalable and coherent video resizing with per-frame optimization
2011
ACM SIGGRAPH 2011 papers on - SIGGRAPH '11
original video cube deformed video cube original frames deformed frames Figure 1 : We introduce a scalable content-aware video retargeting method. ...
Recent work enforces temporal coherence of content-aware video warping by solving a global optimization problem over the entire video cube. ...
Chen for her help with the video materials and licensing. The usage of the video clips is permitted by ARS Film Production, Blender Foundation and MAMMOTH HD. ...
doi:10.1145/1964921.1964983
fatcat:6rh6veiubrhp3jsxkrsxatxi2y
Low-Overhead Content-Adaptive Spatial Scalability for Scalable Video Coding
2013
IEEE Journal on Selected Topics in Signal Processing
Both operations, however, will cause critical visual information loss in the resized frames. ...
To support spatial scalability, the scalable extension of H.264/AVC (SVC) uses video cropping or uniform scaling to downscale the original higher-resolution (HR) sequence to a lower resolution (LR) sequence ...
Consequently, the per-frame resizing is performed again by minimizing the warping error between the independent per-frame resizing and the optimized pathlines. ...
doi:10.1109/jstsp.2013.2273659
fatcat:zgyn3vdglbfsva2rgiw7iu2qx4
Motion-aware temporal coherence for video resizing
2009
ACM SIGGRAPH Asia 2009 papers on - SIGGRAPH Asia '09
We build a complete video resizing framework by incorporating our motion-aware constraints with an adaptation of the scale-and-stretch optimization recently proposed by Wang and colleagues. ...
We achieve spatially and temporally coherent resizing of the aligned frames by preserving the relative positions of corresponding components within a grid-based optimization framework. ...
We thank Hui-Chih Lin for the video production and Andrew Nealen for the video narration. We also thank Miki ...
doi:10.1145/1661412.1618473
fatcat:wrqqt7cgd5bs5juc7rxcrv3n4a
Motion-aware temporal coherence for video resizing
2009
ACM Transactions on Graphics
We build a complete video resizing framework by incorporating our motion-aware constraints with an adaptation of the scale-and-stretch optimization recently proposed by Wang and colleagues. ...
We achieve spatially and temporally coherent resizing of the aligned frames by preserving the relative positions of corresponding components within a grid-based optimization framework. ...
We thank Hui-Chih Lin for the video production and Andrew Nealen for the video narration. We also thank Miki ...
doi:10.1145/1618452.1618473
fatcat:fnnyhgny5jalnhlb33t3j43lwe
Low-overhead content-adaptive spatial scalability for scalable video coding
2013
2013 IEEE China Summit and International Conference on Signal and Information Processing
To support spatial scalability, the scalable extension of H.264/AVC (SVC) uses video cropping or uniform scaling to downscale the original higher-resolution (HR) sequence to a lower resolution (LR) one ...
To address the problem, we propose a low-overhead CASS-SVC coder consisting of three main modules: a mosaic-guided video retargeter, a side-information coder, and a non-homogeneous interlayer predictive ...
while maintaining intra-frame spatial coherence and inter-frame temporal coherence with the help of the panoramic mosaics. ...
doi:10.1109/chinasip.2013.6625335
dblp:conf/chinasip/LinTCK13
fatcat:x2umoym25fepfffbl5ppf2ikae
Discontinuous seam-carving for video retargeting
2010
2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition
We introduce a new algorithm for video retargeting that uses discontinuous seam-carving in both space and time for resizing videos. ...
This formulation optimizes the difference in appearance of the resultant retargeted frame to the optimal temporally coherent one, and allows for carving around fast moving salient regions. ...
, and is scalable for large videos. ...
doi:10.1109/cvpr.2010.5540165
dblp:conf/cvpr/GrundmannKHE10
fatcat:nwst2oeyanekpi5mjdfzcuenou
Content-Aware Video Retargeting Using Object-Preserving Warping
2013
IEEE Transactions on Visualization and Computer Graphics
The key to this technique is adapting videos to fit displays with various aspect ratios and sizes while preserving both visually salient content and temporal coherence. ...
Most previous studies solve this spatiotemporal problem by consistently resizing content in frames. ...
Comparisons with the related methods, including improved seam carving [7] , per-frame optimization [4] , and linear scaling. manually selected. ...
doi:10.1109/tvcg.2013.75
pmid:23929847
fatcat:xhzl6zklbrb3zhzlbosfg6egce
Motion-based video retargeting with optimized crop-and-warp
2010
ACM SIGGRAPH 2010 papers on - SIGGRAPH '10
Variational optimization allows to find the best balance between the two operations, enabling retargeting of challenging videos with complex motions, numerous prominent objects and arbitrary depth variability ...
Figure 1 : Our video retargeting framework has motion information at its core, utilizing it to define temporal persistence of video contents and to describe temporal coherence constraints. ...
We are also grateful to Tino Weinkauf for his comments, to Alec Jacobson for narrating the accompanying video, to Joyce Meng for her help with the video materials and licensing, to the members of Computer ...
doi:10.1145/1833349.1778827
fatcat:lwrugiu4sjcpvm4cnfgmkwantm
Motion-based video retargeting with optimized crop-and-warp
2010
ACM Transactions on Graphics
Variational optimization allows to find the best balance between the two operations, enabling retargeting of challenging videos with complex motions, numerous prominent objects and arbitrary depth variability ...
Figure 1 : Our video retargeting framework has motion information at its core, utilizing it to define temporal persistence of video contents and to describe temporal coherence constraints. ...
We are also grateful to Tino Weinkauf for his comments, to Alec Jacobson for narrating the accompanying video, to Joyce Meng for her help with the video materials and licensing, to the members of Computer ...
doi:10.1145/1778765.1778827
fatcat:odpodezm5vey5i2wl5oe6oxzei
Motion-based video retargeting with optimized crop-and-warp
2010
ACM Transactions on Graphics
Variational optimization allows to find the best balance between the two operations, enabling retargeting of challenging videos with complex motions, numerous prominent objects and arbitrary depth variability ...
Figure 1 : Our video retargeting framework has motion information at its core, utilizing it to define temporal persistence of video contents and to describe temporal coherence constraints. ...
We are also grateful to Tino Weinkauf for his comments, to Alec Jacobson for narrating the accompanying video, to Joyce Meng for her help with the video materials and licensing, to the members of Computer ...
doi:10.1145/1833351.1778827
fatcat:zrga2zd6ebbibb6ajhcdvy5gye
Context-Aware Video Retargeting via Graph Model
2013
IEEE transactions on multimedia
Existing retargeting techniques deal with these spatial-temporal requirements individually, which preserve the spatial geometry and temporal coherence for each region. ...
Experimental results and comparisons with state-of-the-art methods demonstrate the effectiveness and efficiency of our approach. ...
Lang for providing the retargeted video clips for comparison. ...
doi:10.1109/tmm.2013.2267727
fatcat:xopemzkobrawvlu6vm7dippdmm
Scanner
2018
ACM Transactions on Graphics
Scanner organizes video collections as tables in a data store optimized for sampling frames from compressed video, and executes pixel processing computations, expressed as dataflow graphs, on these frames ...
from video, and data-mining big video datasets such as hundreds of feature-length films or over 70,000 hours of TV news. ...
Scheduling Graphs with Optimized Kernels. In conjunction with video frame access, Scanner is also responsible for scheduling computation graphs of optimized kernels to machines with CPUs and GPUs. ...
doi:10.1145/3197517.3201394
fatcat:dawsgbcvefab3mdmtne6kjtjb4
Content aware video manipulation
2011
Computer Vision and Image Understanding
First, the video is analyzed to detect the importance of each pixel in the frame, based on local saliency, motion detection and object detectors. ...
Content aware video manipulation (CAVM) is a method for the analysis and recomposition of video footage, by means of content analysis and adaptive video warping. ...
They include: blunt aspect ratio free resizing; cropping the middle of the video; resizing while preserving the aspect ratio by adding black stripes above and below the frame; and keeping the center of ...
doi:10.1016/j.cviu.2011.05.010
fatcat:hh6h53errbaahiuppclty5vn3y
platform with a flexible, user configurable and highly scalable characteristics in what concerns the number of available cores to be used in the target concretization. ...
A highly modular and configurable platform for designing parallel H.264 video encoders on multi-core processors is presented. ...
or at most a couple of 4CIF frames per second. ...
doi:10.1145/1806565.1806586
dblp:conf/nossdav/RodriguesRS10
fatcat:7v6a36fljjf3pdtyzkfq2uonky
« Previous
Showing results 1 — 15 out of 546 results