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Displaying 1-29 out of 29 total
Forging a Close Relationship with Multimedia Communities
Found in: IEEE MultiMedia
By Wenjun Zeng,Zicheng Liu,Eckehard Steinbach
Issue Date:October 2014
pp. 14-15
In May 2014, the authors of the top 26 papers from the IEEE International Conference on Multimedia & Expo (ICME) 2014 were invited to submit extended versions of their papers to this fast track special issue. After a rigorous peer-review process, e...
   
Social Multimedia Signals: Sense, Process, and Put Them to Work
Found in: IEEE MultiMedia
By Suman Deb Roy,Gilad Lotan,Wenjun Zeng
Issue Date:January 2013
pp. 7-13
Social media gives ordinary people the power to be content creators and information disseminators. This information is embedded in multimedia shared across social networks, containing valuable indications about various facets of human life–a...
 
Mobile Media in Action: Remote Target Localization and Tracking
Found in: IEEE Multimedia
By Qia Wang,Wenjun Zeng,Aleksandre G. Lobzhanidze
Issue Date:July 2012
pp. 74-80
Smartphones have come a long way over the past 10 years—from containing a simple database of calendar entries and contacts to including a digital camera, digital compass, GPS, and thousands of apps available with the touch of a button on the scr...
 
Security for Multimedia Adaptation: Architectures and Solutions
Found in: IEEE Multimedia
By Wenjun Zeng, Junqiang Lan, Xinhua Zhuang
Issue Date:April 2006
pp. 68-76
Multimedia content adaptation enables users with different access networks, client devices, and/or user profiles to access the same information source. However, content adaptation also introduces security implications. We conduct an in-depth investigation ...
 
The Hidden Potential of Movie Genome Communities: Analyzing Fine-Grained Semantic Information in Motion Pictures
Found in: 2013 IEEE Seventh International Conference on Semantic Computing (ICSC)
By Suman Deb Roy,Wenjun Zeng
Issue Date:September 2013
pp. 314-321
The paper discusses the existence of distinct communities of fine-grained semantic features in movies, which may result in some movies being popular at box office, others winning Oscars while some receiving high ratings from users/critics. We study a pheno...
 
Video Based Real-World Remote Target Tracking on Smartphones
Found in: 2012 IEEE International Conference on Multimedia and Expo (ICME)
By Qia Wang,Alex Lobzhanidze,Hyun I. Jang,Wenjun Zeng,Yi Shang
Issue Date:July 2012
pp. 693-698
Smartphone's increasing computing power and built-in sensors such as digital camera and GPS have created a new and open platform for developing compelling mobile multimedia tools and systems. In this paper, a novel, accurate and computationally efficient v...
 
Empowering Cross-Domain Internet Media with Real-Time Topic Learning from Social Streams
Found in: 2012 IEEE International Conference on Multimedia and Expo (ICME)
By Suman D. Roy,Tao Mei,Wenjun Zeng,Shipeng Li
Issue Date:July 2012
pp. 49-54
This paper aims to connect social media from disparate sources on the Internet by building a common topic space in-between, using which cross domain media recommendations can be realized on the web. The topic space is built and updated in real time by exte...
 
Expert Talk for Time Machine Session: High Order Entropy Coding -- From Conventional Video Coding to Distributed Video Coding
Found in: 2012 IEEE International Conference on Multimedia and Expo (ICME)
By Wenjun Zeng
Issue Date:July 2012
pp. 425
High order entropy coding has proved to be critical for improving the coding efficiency of conventional image/video coding. What role will it play in distributed video coding? This talk intends to shed some light on that.
 
Scalable Lossy Compression for Pixel-Value Encrypted Images
Found in: Data Compression Conference
By Xiangui Kang,Xianyu Xu,Anjie Peng,Wenjun Zeng
Issue Date:April 2012
pp. 400
Compression of encrypted data draws much attention in recent years due to the security concerns in a service oriented environment such as cloud computing. We propose a scalable lossy compression scheme for images having their pixel value encrypted with a s...
 
A multi-layer key stream based approach for joint encryption and compression of H.264 video
Found in: Multimedia and Expo, IEEE International Conference on
By Suman Deb Roy, Jun Tian,Heather Yu, Wenjun Zeng
Issue Date:July 2011
pp. 1-6
Encryption of multimedia video data has been extensively studied. However, a pipelined method of compression followed by encryption is not always feasible and springs new challenges, namely the effect of visual degradation and the computational cost of the...
 
Overview of the OMA Secure Content IDentification Mechanism
Found in: Multimedia and Expo, IEEE International Conference on
By Wenjun Zeng, Jian Lu, Qia Wang, Stephen Bock
Issue Date:July 2010
pp. 1370-1375
With the wide availability of digital content and proliferation of Web2.0 applications, supporting secure and efficient identification of digital content becomes a more and more important issue. In early 2010, the Open Mobile Alliance (OMA) ratified a new ...
 
A New Data-Mining Based Approach for Network Intrusion Detection
Found in: Communication Networks and Services Research, Annual Conference on
By Christine Dartigue, Hyun Ik Jang, Wenjun Zeng
Issue Date:May 2009
pp. 372-377
Nowadays, as information systems are more open to the Internet, the importance of secure networks is tremendously increased. New intelligent Intrusion Detection Systems (IDSs) which are based on sophisticated algorithms rather than current signature-base d...
 
Estimating side-information for Wyner-Ziv video coding using resolution-progressive decoding and extensive motion exploration
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Wei Liu, Lina Dong, Wenjun Zeng
Issue Date:April 2009
pp. 721-724
In Wyner-Ziv video coding (WZVC), the quality of side information (SI) has a critical impact on the coding efficiency. Most existing WZVC schemes generate SI using decoder-side motion estimation (ME), where the current frame is unavailable and the ME accur...
 
Multi-resolution based hybrid spatiotemporal compression of encrypted videos
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Qiuming Yao, Wenjun Zeng, Wei Liu
Issue Date:April 2009
pp. 725-728
Compression of encrypted data can be viewed as a special case of distributed source coding and can be achieved by applying Slepian-Wolf Coding. However, how to compress the encrypted video efficiently remains a challenging problem especially for those vide...
 
Cross-Layer Design of Source Rate Control and Qos-Aware Congestion Control for Wireless Video Streaming
Found in: Multimedia and Expo, IEEE International Conference on
By Peng Zhu, Wenjun Zeng, Chunwen Li
Issue Date:July 2006
pp. 1133-1136
Cross-layer design has been used in streaming video over the wireless channels to optimize the overall system performance. In this paper we extend our previous work (i.e. joint design of source rate control and congestion control for video streaming over t...
 
Path-Diversity Overlay Retransmission Architecture for Reliable Multicast
Found in: Multimedia and Expo, IEEE International Conference on
By Wenjun Zeng, Yingnan Zhu, Haibin Lu, Hongbing Jiang
Issue Date:July 2006
pp. 1681-1684
IP-multicast is a bandwidth efficient transmission mechanism for group communications. Reliability in IP-multicast, however, poses a set of significant challenges. To address the reliability and scalability issues in IP-multicast, this paper proposes a nov...
 
Spatial-temporal error concealment with side information for standard video codecs
Found in: Multimedia and Expo, IEEE International Conference on
By Wenjun Zeng
Issue Date:July 2003
pp. 113-116
Error concealment (EC) is important for transmitting video over error prone networks such as the Internet or wireless networks. Different EC strategies have their own advantages for different scenarios. However, it is generally difficult for the decoder to...
 
Source characteristics based fast bitstream switching
Found in: Multimedia and Expo, IEEE International Conference on
By Bo Xie, Wenjun Zeng
Issue Date:July 2003
pp. 521-524
Bitstream switching is an effective way to deal with the bandwidth variation issue in transmitting multimedia over the Internet or wireless networks. This paper proposes a fast intelligent bitstream switching algorithm that avoids the problem of long delay...
 
Format-Compliant Selective Scrambling for Multimedia Access Control
Found in: Information Technology: Coding and Computing, International Conference on
By Wenjun Zeng, Jiangtao Wen, Mike Severa
Issue Date:April 2002
pp. 0077
We present a framework for access control of standard-compliant compressed video and audio bitstreams for entertainment purposes. This includes format compliant selective encryption and compliance-preserving secure spatial shuffling. The approach leverages...
   
HTTP Streaming of JPEG2000 Images
Found in: Information Technology: Coding and Computing, International Conference on
By Sachin Deshpande, Wenjun Zeng
Issue Date:April 2001
pp. 0015
Abstract: JPEG2000 is a new image compression standard. One of the goals of JPEG2000 is to support large images. Since even the compressed image file can be very big for large images, downloading the entire image can take long time depending upon the user'...
 
Integrated Image and Speech Analysis for Content-Based Video Indexing
Found in: Multimedia Computing and Systems, International Conference on
By Yuh-Lin Chang, Wenjun Zeng, Ibrahim Kamel, Rafael Alonso
Issue Date:June 1996
pp. 0306
In this paper we study an important problem in multimedia database, namely, the automatic extraction of indexing information from raw data based on video contents. The goal of our research project is to develop a prototype system for automatic indexing of ...
 
Directional spatial interpolation for DCT-based low bit rate coding
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Wenjun Zeng, Bede Liu
Issue Date:May 1996
pp. 2100-2103
A novel approach which combines directional spatial interpolation at the receiver and block-based coding is proposed for low bit rate coding. The directional spatial interpolation at the receiver can reconstruct faithfully a large percentage of the blocks ...
 
Feature-oriented Rate Shaping of Pre-compressed Image/Video
Found in: Image Processing, International Conference on
By Wenjun Zeng, Bede Liu, Baining Guo
Issue Date:October 1997
pp. 772
Rate shaping plays an important role in transmitting compressed video on a network with dynamic bandwidth. In this paper, we present a scheme for rate shaping JPEG/MPEG-precompressed image/video with feature analysis in scale space. The proposed scheme dra...
 
Cognitive canonicalization of natural language queries using semantic strata
Found in: ACM Transactions on Speech and Language Processing (TSLP)
By Suman Deb Roy, Wenjun Zeng
Issue Date:December 2013
pp. 1-30
Natural language search relies strongly on perceiving semantics in a query sentence. Semantics is captured by the relationship among the query words, represented as a network (graph). Such a network of words can be fed into larger ontologies, like DBpedia ...
     
AMIGO: accurate mobile image geotagging
Found in: Proceedings of the 4th International Conference on Internet Multimedia Computing and Service (ICIMCS '12)
By Jiebo Luo, Nenghai Yu, Tao Mei, Wenjun Zeng, Xiaobin Xu
Issue Date:September 2012
pp. 11-14
With location-based services gaining popularity among mobile users, researchers are exploring the way using the phone-captured image for localization as it contains more context information than the embedded sensory GPS coordinates. We present in this pape...
     
Positionit: an image-based remote target localization system on smartphones
Found in: Proceedings of the 19th ACM international conference on Multimedia (MM '11)
By Alex Lobzhanidze, Qia Wang, Suman Deb Roy, Wenjun Zeng, Yi Shang
Issue Date:November 2011
pp. 821-822
We present PositionIt, a novel, low-cost, image-based remote target localization system using commodity smartphones. By leveraging smartphones' built-in sensors such as camera, digital compass, GPS, etc., the system can estimate the distance/position of re...
     
Scalable streaming of JPEG2000 images using hypertext transfer protocol
Found in: Proceedings of the ninth ACM international conference on Multimedia (MULTIMEDIA '01)
By Sachin Deshpande, Wenjun Zeng
Issue Date:September 2001
pp. 372-381
This paper describes a scalable architecture for streaming of JPEG2000 images, using Hypertext Transfer Protocol (HTTP). JPEG2000 is a new image compression standard. One of the goals of JPEG2000 is to support large images. For a large image, even the comp...
     
Efficient frequency domain video scrambling for content access control
Found in: Proceedings of the seventh ACM international conference on Multimedia (Part 1) (MULTIMEDIA '99)
By Shawmin Lei, Wenjun Zeng
Issue Date:October 1999
pp. 285-294
Multimedia data security is very important for multimedia commerce on the Internet such as video-on-demand and real-time video multicast. Traditional cryptographic algorithms for data security are often not fast enough to process the vast amount of data ge...
     
Rate shaping by block dropping for transmission of MPEG-precoded video over channels of dynamic bandwidth
Found in: Proceedings of the fourth ACM international conference on Multimedia (MULTIMEDIA '96)
By Bede Liu, Wenjun Zeng
Issue Date:November 1996
pp. 385-393
This paper addresses the problem of how to automatically generate visual representations of recorded histories of distributed multimedia collaborations. The work reported here focuses mainly on what we consider to be an innovative approach to this problem,...
     
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