Ninth IEEE International Symposium on Multimedia (ISM 2007)最新文献_第3页

Making Sense of Ubiquitous Media style 理解无处不在的媒体风格

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.4412352

M. Muhlhauser

引用次数: 1

The Role of QoE on IPTV Services style QoE在IPTV业务模式中的作用

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.46

J. Kishigami

引用次数: 14

Quality Compressed Steganography Using Hidden Referenced Halftoning 使用隐藏参考半调的高质量压缩隐写

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.50

Jing-Ming Guo, Jen-Ho Chen

{"title":"Quality Compressed Steganography Using Hidden Referenced Halftoning","authors":"Jing-Ming Guo, Jen-Ho Chen","doi":"10.1109/ISM.2007.50","DOIUrl":"https://doi.org/10.1109/ISM.2007.50","url":null,"abstract":"Block truncation coding is an efficient compression technique while offering good image quality. Nonetheless, the blocking effect inherent in BTC causes severe perceptual artifact in high compression ratio applications. In this paper, an error-diffused block truncation coding (EDBTC) is proposed to solve this problem. According to the EDBTC, the error caused by the difference between the original grayscale pixel value and the correspondingly high or low mean substitute is diffused to the predefined neighborhood, and hence the average grayscale will be maintained invariably. In addition, since the compressed data are widely distributed in the internet transmission, the extra message delivering in a secret way also highly raises attention recently. In this paper, we propose the compressed steganography using Hidden Referenced Halftoning (CSHRH), which cooperates with error diffusion and ordered dithering to achieve the objective of secret communication in BTC images. As documented in the experimental results, a low complexity with good image quality approach is obtained. Moreover, CSHRH is extended to secret-sharing steganography (SSS) and color extension steganography (CES). The SSS is able to distribute message into multiple host images and hence improves the security. The CES is able to deliver secure message via color embedded CSHRH image. Both extensions are also with an extra benefit of achieving high capacity message convection.","PeriodicalId":129680,"journal":{"name":"Ninth IEEE International Symposium on Multimedia (ISM 2007)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116872895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

VEIL: A System for Certifying Video Provenance VEIL:视频来源认证系统

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.10

Ashish Gehani, U. Lindqvist

引用次数: 14

Improving Throughput and Node Proximity of P2P Live Video Streaming through Overlay Adaptation 通过覆盖自适应提高P2P直播视频流的吞吐量和节点接近度

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.36

B. Biskupski, R. Cunningham, R. Meier

{"title":"Improving Throughput and Node Proximity of P2P Live Video Streaming through Overlay Adaptation","authors":"B. Biskupski, R. Cunningham, R. Meier","doi":"10.1109/ISM.2007.36","DOIUrl":"https://doi.org/10.1109/ISM.2007.36","url":null,"abstract":"Due to the heterogeneity of the environment, in which hosts may have different bandwidth capacities and network distances between hosts vary, current mesh-based multicast protocols for video streaming over the Internet tend to in efficiently utilise the available bandwidth and often transfer large amounts of data between distant hosts. This limits system throughput, which results in reduced video quality, and imposes significant costs on Internet service providers (ISPs) caused by network traffic outside a provider's own network. This paper presents MeshTV, a mesh-based peer-to-peer (P2P) multicast protocol for streaming live video from a transmitter to numerous viewers. MeshTV proposes an algorithm for adapting the mesh overlay in which nodes explore their possible neighbour nodes and select neighbours so that data throughput is optimised and data is transmitted between nearby (low-latency) nodes, typically within the same ISP thus reducing the costs to ISPs. Our evaluation demonstrates that the adaptation algorithm used in MeshTV can improve video streaming throughput by over 100 % and typically reduces the distances (network latencies) between interacting nodes by 50 % compared to unoptimised mesh overlays.","PeriodicalId":129680,"journal":{"name":"Ninth IEEE International Symposium on Multimedia (ISM 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131321846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Accelerating Embedded Multimedia Applications with Versatile and Reconfigurable Instruction Fusion 用通用和可重构指令融合加速嵌入式多媒体应用

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.23

A. Cheng

{"title":"Accelerating Embedded Multimedia Applications with Versatile and Reconfigurable Instruction Fusion","authors":"A. Cheng","doi":"10.1109/ISM.2007.23","DOIUrl":"https://doi.org/10.1109/ISM.2007.23","url":null,"abstract":"Continuously increasing demand for richer functionality, faster real-time communication, smaller feature size, longer battery life, more elevated security, and higher reliability is pushing the design for portable multimedia applications into the era where a single system is consisted of a general-purpose CPU interacting with several application-specific accelerating components and coprocessors to fulfill the ever diverse constraints imposed multi- directionally. The inter-component communication overhead, along with the engineering efforts required to integrate, verify, and validate such heterogeneous systems are scaled disproportionally as the complexity of such systems continue rising skyrocketedly. Moreover, due to limited instruction encoding space and the need to maintain backward compatibly in the future designs, designers are often forced to include only a very small subset of the total desired functionalities on chip, despite there can be more than sufficient silicon real estate to incorporate these specialized function units. This paper proposes a cost-effective technique of incorporating diverse functionalities into a single multi-purpose, streamlining acceleration unit, named Versatile Processing Unit (VPU), to replace the conventional ALU on a CPU. The proposed VPU can supply the general-purpose CPU with a rich set of streamlined operations, which may supersede some or even all of the heterogeneous cores. The superseded hardware components are removed to reduce the integration and communication overhead. The issues of limited instruction encoding space and future backward compatibility are resolved by our proposed dynamic instruction re-mapping technique, in which the instruction bit fields can be redefined on the fly to allow instruction space reuse at run time.","PeriodicalId":129680,"journal":{"name":"Ninth IEEE International Symposium on Multimedia (ISM 2007)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123994453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Efficient and Effective Video Copy Detection Based on Spatiotemporal Analysis 基于时空分析的高效视频拷贝检测

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.38

Chih-Yi Chiu, Cheng-Chih Yang, Chu-Song Chen

引用次数: 25

Performance Analysis of Distributed Speech Recognition Services over Noisy 802.11b Wireless Networks 噪声802.11b无线网络下分布式语音识别业务性能分析

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.24

A. Rinotti, P. Demichelis, Juan Carlos De Martin

引用次数: 0

Detection of Questions in Arabic Audio Monologues Using Prosodic Features 利用韵律特征检测阿拉伯语音频独白中的问题

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.37

O. Khan, W. Al-Khatib, L. Cheded

引用次数: 11

Joint Network and Rate Allocation for Video Streaming over Multiple Wireless Networks 多无线网络视频流的联合网络和速率分配

Ninth IEEE International Symposium on Multimedia (ISM 2007) Pub Date : 2007-12-10 DOI: 10.1109/ISM.2007.31

D. Jurca, W. Kellerer, E. Steinbach, Shoaib Khan, Srisakul Thakolsri, P. Frossard

引用次数: 16