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Scalable and coherent video resizing with per-frame optimization

Yu-Shuen Wang, Jen-Hung Hsiao, Olga Sorkine, Tong-Yee Lee
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

Yu-Shuen Wang, Jen-Hung Hsiao, Olga Sorkine, Tong-Yee Lee
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

Chia-Wen Lin, Chia-Ming Tsai, Po-Chun Chen
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

Yu-Shuen Wang, Hongbo Fu, Olga Sorkine, Tong-Yee Lee, Hans-Peter Seidel
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

Yu-Shuen Wang, Hongbo Fu, Olga Sorkine, Tong-Yee Lee, Hans-Peter Seidel
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

Chia-Wen Lin, Chia-Ming Tsai, Po-Chun Chen, Li-Wei Kang
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

Matthias Grundmann, Vivek Kwatra, Mei Han, Irfan Essa
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

Shih-Syun Lin, Chao-Hung Lin, I-Cheng Yeh, Shu-Huai Chang, Chih-Kuo Yeh, Tong-Yee Lee
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

Yu-Shuen Wang, Hui-Chih Lin, Olga Sorkine, Tong-Yee Lee
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

Yu-Shuen Wang, Hui-Chih Lin, Olga Sorkine, Tong-Yee Lee
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

Yu-Shuen Wang, Hui-Chih Lin, Olga Sorkine, Tong-Yee Lee
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

Zhan Qu, Jinqiao Wang, Min Xu, Hanqing Lu
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

Alex Poms, Will Crichton, Pat Hanrahan, Kayvon Fatahalian
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

Moshe Guttmann, Lior Wolf, Danny Cohen-Or
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

p264

António Rodrigues, Nuno Roma, Leonel Sousa
2010 Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video - NOSSDAV '10  
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
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