搜索结果: 1-15 共查到“数字媒体技术 Video”相关记录78条 . 查询时间(0.492 秒)
High-quality online video with less rebuffering
High-quality online video less rebuffering
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2017/9/5
We’ve all experienced two hugely frustrating things on YouTube: our video either suddenly gets pixelated, or it stops entirely to rebuffer.Both happen because of special algorithms that break videos i...
Experimenting with Museum and User Friendly Video Files Distribution Platform on the Web "Volumeone"
Web based video-casting MP4 FLV Web 2.0 intermediary User-oriented
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2015/11/11
The platform now called “VOLUMEZERO” (http://www.volumezero.jp) was introduced by a team led by Prof. Junko IWABUCHI of Research Institute for Digital Media and Content, Keio University, Tokyo, Japan ...
Random Partial Paired Comparison for Subjective Video Quality Assessment via HodgeRank ∗
Subjective Video Quality Assessment HodgeRank, Random Graphs Persistence Homology
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2013/7/24
Subjective visual quality evaluation provides the groundtruth and source of inspiration in building objective visualquality metrics. Paired comparison is expected to yieldmore reliable results; howeve...
Witsenhausen–Wyner Video Coding
Distributed video coding error resilience syndrome coding.
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2013/7/24
Inspired by Witsenhausen and Wyner’s 1980 (nowexpired) patent on “interframe coder for video signals,” thispaper presents a Witsenhausen–Wyner video codec, where themotion-compensated previously decod...
PKU-NEC TRECVid 2011 SED: Sequence-Based Event Detection in Surveillance Video
PKU-NEC Sequence-Based Surveillance Video
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2013/7/24
In this paper, we describe our system for surveillance event detection task in TRECVid 2011. We focus on pair-wise events (e.g., PeopleMeet, PeopleSplitUp, Embrace) that need to explore the relationsh...
RATE-SSIM OPTIMIZATION FOR VIDEO CODING
SSIM index rate distortion optimization reduced-reference image quality assessment Lagrange multiplier rate-SSIM optimization
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2013/7/24
The structural similarity (SSIM) index has been found to bea good indicator of perceived image quality. In this paper,we propose a rate-SSIM optimization scheme for mode selection in H.264/AVC video c...
Up-sampling Dependent Frame Rate Reduction for Low Bit-rate Video Coding
Up-sampling Dependent Frame Rate Video Coding
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2013/7/24
In low bit rate video coding, the frame rate of input sequence can be reduced to the half or even smaller portion by skipping or deleting frames before compression, and then the temporal resolution is...
Mode-Dependent Intra Frame Interpolation for H.264/AVC Compressed Video
Mode-Dependent Intra Frame Interpolation
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2013/7/24
In this paper, a mode-dependent intra frame interpolation method is proposed for H.264/AVC compressed video. The intra prediction mode information is taken into account in the interpolation filter des...
Detection and Location of Near-Duplicate Video Sub-Clips by Finding Dense Subgraphs
Near-duplicate video detection Sub-clip location Graph shift
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2013/7/24
Robust and fast near-duplicate video detection is an important task with many potential applications. Most existing systems focus on the comparison between full copy videos or partial nearduplicate vi...
A Rotation Invariant Descriptor for Robust Video Copy Detection
CBCD frame-level descriptor rotation invariant HOG
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2013/7/24
A large amount of videos on the Internet are generated from authorized sources by various kinds of transformations. Many works are proposed for robustdescription of video, which lead to satisfying ma...
SSIM-INSPIRED DIVISIVE NORMALIZATION FOR PERCEPTUAL VIDEO CODING
SSIM index rate distortion optimization residual divisive normalization H.264/AVC coding
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2013/7/24
We propose a perceptual video coding framework based on anSSIM-inspired divisive normalization scheme as an attemptto transform the DCT domain frame prediction residuals toa perceptually uniform space...
Affective Video Classification Based on Spatio-Temporal Feature Fusion
video clssification facial expression recognition spatio-temporal feature fusion hidden dynamic conditional random fields
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2013/7/24
In this paper, we propose a novel affective video classification method based on facial expression recognition by learning the spatio-temporal feature fusion of actors’ and viewers’ facial expressions...
NEWS VIDEO STORY SENTIMENT CLASSIFICATION AND RANKING
News video analysis sentiment classification personalized news video semi-supervised learning
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2013/7/24
In this paper, we present a novel approach for news video story sentiment analysis. Two research challenges are addressed: news video story sentiment classification and ranking. For classification, a ...
A HIGHLY EFFICIENT PIPELINE ARCHITECTURE OF RDO-BASED MODE DECISION DESIGN FOR AVS HD VIDEO ENCODER
mode decision RDO, AVS pipeline
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2013/7/24
Like H.264, AVS video coding standard also uses macroblock (MB) based motion compensation (MC) and mode decision (MD). Rate distortion optimization (RDO) is the best known mode decision method, but wi...
Video Stabilization based on Saliency driven SIFT Matching and discriminative Ransac
Visual Attention Model discriminative SIFT feature Motion Analysis Video Stabilization
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2013/7/24
Inspired by the stability functions of human vision system, we present a novel video stabilization method based on saliency driven SIFT matching and discriminative RANSAC. Firstly, a saliency detectio...