Real-time low-complexity adaptive approach for enhanced QoS and error resilience in MPEG-2 video transport over RTP networks

Çavuşoğlu, Bülent; Schonfeld, Dan; Ansari, Rashid; Bal, D.K.

doi:10.1109/tcsvt.2005.856917

Cited by 18 publications

(9 citation statements)

References 22 publications

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“…The first aspect refers to the structure of the data: a set of packets in a stream, a set of macroblocks in a frame, a frame, or a video layer. The second alludes to the units within the encoded video stream, whose features are analyzed to perform the prioritization: macroblock ranking, frame classification, and video scalability exploitation [5,6,11]. In general, the finer the granularity of evaluation, the more computationally costly the technique.…”

Section: Unequal Loss Protectionmentioning

confidence: 99%

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Cubero¹,

Gutiérrez

Pérez³

et al. 2012

Bell Labs Tech. J.

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Recently, three-dimensional (3D) video has decisively burst onto the entertainment industry scene, and has arrived in households even before the standardization process has been completed. 3D television (3DTV) adoption and deployment can be seen as a major leap in television history, similar to previous transitions from black and white (B&W) to color, from analog to digital television (TV), and from standard definition to high definition. In this paper, we analyze current 3D video technology trends in order to define a taxonomy of the availability and possible introduction of 3D-based services. We also propose an audiovisual network services architecture which provides a smooth transition from two-dimensional (2D) to 3DTV in an Internet Protocol (IP)-based scenario. Based on subjective assessment tests, we also analyze those factors which will influence the quality of experience in those 3D video services, focusing on effects of both coding and transmission errors. In addition, examples of the application of the architecture and results of assessment tests are provided. IntroductionBoth the entertainment industry and the research community are focused on the decisive introduction and evolution of three-dimensional (3D) video in entertainment media. The possibilities of this novelty technology in terms of immersiveness and enhancement of the user experience are generating great expectations in the sector, as new market and business opportunities are foreseen.Several possible 3D scenarios can be materialized in the short to medium term to offer the end user a 3D experience. In this paper we identify these scenarios, and analyze the technology-associated trends in the whole end-to-end chain, from content capture to content display, including coding and representation formats, and available delivery standards.Taking an Internet Protocol (IP)-based scenario as the starting point, we propose an architecture for the delivery of 3D content, identifying the new functionalities required for managing 3D content. Moreover, 3D content information is organized and aggregated in different ways, depending on the technology involved in the implementation of each particular scenario. Thus, the end user experience can be improved by taking advantage of the new solutions made available through content-aware processing appliances and services hosted at either the head end or in the delivery network. Such solutions have already been successfully demonstrated in two-dimensional (2D) video [27].In this sense, the characterization of the quality of experience (QoE) of the end user depends highly on the particular technologies adopted for the representation, coding, and delivery of 3D content. In this paper, we also present the results of preliminary work on how losses during content compression or content distribution impact user perception. 3D ScenariosProviding the depth perception necessary to enhance the audiovisual content experience is a pressing issue in both the entertainment industry and the There is no unique way to fulfill th...

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Section: Unequal Loss Protectionmentioning

confidence: 99%

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Cubero¹,

Gutiérrez

Pérez³

et al. 2012

Bell Labs Tech. J.

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“…Several studies analyze multimedia data services [1][2][3][4][5][6][7][8] for a variety of communication media and devices. The process of providing real-time multimedia services over mobile and broadband Internet connection has different requirements in terms of the Quality of Service (QoS) [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. This prompts the division of multimedia data into two layers-the base layer and the enhancement layer.…”

Section: Introductionmentioning

confidence: 99%

Transmission Algorithm with QoS Considerations for a Sustainable MPEG Streaming Service

2017

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With the proliferation of heterogeneous networks, there is a need to provide multimedia stream services in a sustainable manner. It is especially critical to maintain the Quality of Service (QoS) standards. Existing multimedia streaming services have been studied to guarantee QoS on the receiving side. QoS has not been ensured due to the fact that the loss of streaming data to be transmitted has not been considered in network conditions. With an algorithm that considers the QoS and can reduce the overhead of the network, it will be possible to reduce the transmission error and wastage of communication network resources. In this paper, we propose a scheme that improves the reliability of multimedia transmissions by using an adaptive algorithm that switches between UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) based on the size of the data. In addition, we present a method that retransmits essential portions of the multimedia data, thus improving transmission efficiency. We simulate an MPEG (Moving Picture Experts Group) stream service and evaluate the performance of the proposed adaptive MPEG stream service.

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“…The data units which can influence the decoded video quality are a set of packets in a stream, a set of macroblocks in a frame, a frame, and a video layer. The data units which determine the encoded video quality are macroblock ranking, frame classification, and video scalability exploitation [3]- [6].…”

Section: Introductionmentioning

confidence: 99%

A Quality Ratio-Based Novel Unequal Loss Protection Scheme in Wi-Fi Broadcasting System

Kim¹,

Kong²,

Kim³

2013

IJCCE

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Abstract-The Wi-Fi broadcast system using the broadcast packet transmits the multimedia contents to many local mobile users in real time and it must use the FEC technology to recover the broadcast packet loss, because Media Access Control layer retransmission is not supported for broadcast packet loss. Equally adding the redundant packet is not very efficient due to the nature of the multimedia data. So, several studies have been made on the Unequal Loss Protection (ULP). Proposed ULP system can efficiently add the redundant packet to the source video data with experimentally modeling the deterioration of video according to the broadcast packet loss in Wi-Fi based broadcasting system. In order to predict the video deterioration, we use the Expected Quality Ratio (EQR). It is a ratio of the video deterioration of compression to the video deterioration of packet loss. And, we design the framework of ULP system to predict the video quality using the EQR. We implement and experiment the proposed algorithm. Experiment results show how our algorithm outperforms other recovery methods of packet loss. IndexTerms-Wi-Fi broadcasting system, video deterioration modeling, ULP, FEC. I. INTRODUCTIONThe Wi-Fi broadcast system involves a kind of mobile Internet Protocol Television (IPTV) technology that streams multimedia content to many local mobile users in real time. Unlike conventional Wi-Fi-based multimedia streaming systems that use a separate unicast packets to serve each user, the Wi-Fi broadcast system uses broadcast packets for scalability since one broadcast packet can serve many users simultaneously. However, it needs the packet recovery method for packet loss because Media Access Control (MAC) layer retransmission in not supported. Several studies have been made on efficient transmission for multimedia data in burst packet loss network. These studies can be divided into two main categories: One is application layer, and the other is transmission layer.Video compression technology which reduces the video data size is developed in application layer, h.264 standard is representative. Packet loss recovery method is developed in transmission layer, the Automatic Repeat reQuest (ARQ) and Forward Error Correction (FEC) are representative. Because MAC layer retransmission is not supported in transmission of the Wi-Fi based broadcast packet, the Wi-Fi broadcast Manuscript received November 10, 2012; revised January 28, 2013. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012-0001578).The authors are with the Pusan National University, Pusan, 609-735, Republic of Korea (e-mail: dhkim1106@pusan.ac.kr, cocoriuse@mobile.re.kr, kimjd@pusan.ac.kr). system using broadcast packet has to use FEC method for packet loss recovery not the ARQ scheme [1].By the way, because resources might be limited, applying the same FEC rate to all frames is not very efficient. Several studies have been made on improving...

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Real-time low-complexity adaptive approach for enhanced QoS and error resilience in MPEG-2 video transport over RTP networks

Cited by 18 publications

References 22 publications

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Transmission Algorithm with QoS Considerations for a Sustainable MPEG Streaming Service

A Quality Ratio-Based Novel Unequal Loss Protection Scheme in Wi-Fi Broadcasting System

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