MPEG - 4 Video Quality Analysis
نویسنده
چکیده
The ability to efficiently send and receive high-quality multimedia over unreliable networks has become essential. Compressed video bit streams suffer from bit error and packet loss during transport over these different network types. The MPEG-4 standard was developed with error-resilient video coding techniques to help prevent these types of errors and recover from them when they occur. Despite all the efforts of these techniques, errors will still occur. This paper discusses the effects of these network errors on the quality of MPEG-4 video. The specific effects of bit error on the video quality are implemented using the MPEG-4 Video Reference Software.
منابع مشابه
A New Unequal Error Protection Technique Based on the Mutual Information of the MPEG-4 Video Frames over Wireless Networks
The performance of video transmission over wireless channels is limited by the channel noise. Thus many error resilience tools have been incorporated into the MPEG-4 video compression method. In addition to these tools, the unequal error protection (UEP) technique has been proposed to protect the different parts in an MPEG-4 video packet with different channel coding rates based on the rate...
متن کاملOn end-to-end architecture for transporting MPEG-4 video over the Internet
|With the success of the Internet and exibility of MPEG-4, transporting MPEG-4 video over the Internet is expected to be an important component of many multimedia applications in the near future. Video applications typically have delay and loss requirements, which cannot be adequately supported by the current Internet. Thus, it is a challenging problem to design an e cient MPEG4 video delivery ...
متن کاملRTP packetization of MPEG-4 elementary streams
Multimedia streaming is becoming increasingly popular. The multimedia standard MPEG-4 was designed to support scenes of different levels of complexity and applications with low bandwidth up to very high bandwidth requirements. Scalable video encoding is supported as well. This allows MPEG-4 streaming software to adapt video quality dynamically in the network to currently given QoS conditions. W...
متن کاملPerformance Evaluation of MPEG-4 Video Streaming over UMTS Networks using an Integrated Tool Environment
Universal Mobile Telecommunications System (UMTS) is a third-generation mobile communications system that supports wireless wideband multimedia applications. This paper investigates the video quality attained in streaming MPEG-4 video over UMTS networks using an integrated tool environment, which comprises an MPEG-4 encoder/decoder, a network simulator and video quality evaluation tools. The be...
متن کاملMPEG-4 Video Transmission over Wireless Networks: A Link Level Performance Study
With the scalability and flexibility of the MPEG-4 and the emergence of the broadband wireless network, wireless multimedia services are foreseen to become deployed in the near future. Transporting MPEG-4 video over the broadband wireless network is expected to be an important component of many emerging multimedia applications. One of the critical issues for multimedia applications is to ensure...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004