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Results 1 - 10
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3,377
Bilayer segmentation of live video
- In: IEEE Conference on Computer Vision and Pattern Recognition
, 2006
"... a input sequence b automatic layer separation and background substitution in three different frames Figure 1: An example of automatic foreground/background segmentation in monocular image sequences. Despite the challenging foreground motion the person is accurately extracted from the sequence and th ..."
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Cited by 108 (3 self)
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and then composited free of aliasing upon a different background; a useful tool in video-conferencing applications. The sequences and ground truth data used throughout this paper are available from [1]. This paper presents an algorithm capable of real-time separation of foreground from background in monocular video
Mobile Collaborative Live Video Mixing
"... We report on design research investigating a possible combination of mobile collaborative live video production and VJing. In an attempt to better understand future forms of collaborative live media production, we study how VJs produce and mix visuals live. In the practice of producing visuals throu ..."
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We report on design research investigating a possible combination of mobile collaborative live video production and VJing. In an attempt to better understand future forms of collaborative live media production, we study how VJs produce and mix visuals live. In the practice of producing visuals
Online Smoothing of Live Video Transmissions
, 1997
"... In this paper, we consider the problem of online smoothing of live video transmissions, where low latency is critical. To address the low latency requirement, our approach is to wait for a small smoothing window of video frames to be generated, and smooth them prior to their transmission. We pres ..."
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In this paper, we consider the problem of online smoothing of live video transmissions, where low latency is critical. To address the low latency requirement, our approach is to wait for a small smoothing window of video frames to be generated, and smooth them prior to their transmission. We
Mobile Collaborative Live Video Production
"... In this position paper, we present an ongoing design oriented project examining the mobile and collaborative production of live video. We argue that mobile phones equipped with cameras will play an important role in the future of user multimedia content creation. Informed by our findings from previo ..."
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In this position paper, we present an ongoing design oriented project examining the mobile and collaborative production of live video. We argue that mobile phones equipped with cameras will play an important role in the future of user multimedia content creation. Informed by our findings from
On the Efficiency of Shaping Live Video Streams
"... In this work the efficiency of shaping live video streams is considered. We propose low complexity shaping algorithms adequate for real-time operation and supporting applications with a wide range of delay tolerance. The effect of shaping is investigated considering video streams multiplexed at an o ..."
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Cited by 1 (1 self)
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In this work the efficiency of shaping live video streams is considered. We propose low complexity shaping algorithms adequate for real-time operation and supporting applications with a wide range of delay tolerance. The effect of shaping is investigated considering video streams multiplexed
Transitions in Live Video Streaming Services
"... darmstadt.de This work shows a demonstration on the work of the Col-laborative Research Center 1053 pursuing Multi-Mechanism Adaptation for the Future Internet. Our prototype shows a live video streaming system on mobile devices featuring Peer-to-Peer (P2P) and Client/Server delivery concepts. The f ..."
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darmstadt.de This work shows a demonstration on the work of the Col-laborative Research Center 1053 pursuing Multi-Mechanism Adaptation for the Future Internet. Our prototype shows a live video streaming system on mobile devices featuring Peer-to-Peer (P2P) and Client/Server delivery concepts
Unsupervised learning of human action categories using spatial-temporal words
- In Proc. BMVC
, 2006
"... Imagine a video taken on a sunny beach, can a computer automatically tell what is happening in the scene? Can it identify different human activities in the video, such as water surfing, people walking and lying on the beach? To automatically classify or localize different actions in video sequences ..."
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Cited by 494 (8 self)
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, and geometric and photometric variances of objects. For example, in a live video of a skating competition, the skater moves rapidly across the rink, and the camera also moves to follow the skater. With moving camera, non-stationary background, and moving target, few vision algorithms could identify, categorize and
Merging Live Video with Synthetic Imagery
, 2003
"... Merging live action and synthetic imagery in a realistic manner is becoming increasingly important, and has become ubiquitous to filmmaking and television. However, current techniques to merge live and synthetic imagery typically generate low-quality images in real-time, or high-quality results thou ..."
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Cited by 6 (0 self)
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illumination is matched by manipulating the histogram characteristics of the live video. Finally, we implement a compositing system that accounts for the visual interactions between the live and synthetic imagery, synthesizing inter-reflections and shadows using a silhouette reproject...
Efficient region tracking with parametric models of geometry and illumination
- PAMI
, 1998
"... Abstract—As an object moves through the field of view of a camera, the images of the object may change dramatically. This is not simply due to the translation of the object across the image plane. Rather, complications arise due to the fact that the object undergoes changes in pose relative to the v ..."
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Cited by 563 (30 self)
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with techniques from robust statistics and treat occluded regions on the object as statistical outliers. Throughout, we present experimental results performed on live video sequences demonstrating the effectiveness and efficiency of our methods. Index Terms—Visual tracking, real-time vision, illumination, motion
COMPRESSED DOMAIN AUTHENTICATION OF LIVE VIDEO
"... Video authentication techniques generally do not allow any form of manipulation, thus making it impractical for adaptation operations. Moreover, conventional way to adapt and authenticate compressed video content is to perform cascaded decoding and re-encoding operations in some trusted intermediary ..."
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intermediary nodes. In this paper, we propose an authentication scheme for live H.264 encoded video bitstream to verify integrity at the receiver’s side. The proposed design utilizes MPEG-21 gBSD for hard authentication in the compressed domain. The scheme uses content-based authentication data which
Results 1 - 10
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3,377
