Optimizing the Perceptual Quality of Real-Time Multimedia Applications

2015 ◽  
Vol 22 (4) ◽  
pp. 14-28 ◽  
Author(s):  
Jingxi Xu ◽  
Benjamin W. Wah
Keyword(s):  
Real Time ◽  
Multimedia Applications ◽  
Perceptual Quality

Quality of Perception in M-Commerce

2011 ◽  
pp. 284-302 ◽  
Author(s):  
G. Ghinea ◽  
M. C. Angelides
Keyword(s):  
Quality Of Service ◽  
Recent Work ◽  
User Experience ◽  
Communication System ◽  
Multimedia Applications ◽  
Perceptual Quality ◽  
Network Bandwidth ◽  
Shopping Experience ◽  
Business To Consumer

In an m-commerce setting, the underlying communication system will have to provide a quality of service (QoS) in the presence of two competing factors—network bandwidth and, as the pressure to add value to the business-to-consumer (B2C) shopping experience by integrating multimedia applications grows, increasing data sizes. In this chapter, developments in the area of QoS-dependent multimedia perceptual quality are reviewed and are integrated with recent work focusing on QoS for e-commerce. Based on previously identified user perceptual tolerance to varying multimedia QoS, we show that enhancing the m-commerce B2C user experience with multimedia, far from being an idealised scenario, is in fact feasible if perceptual considerations are employed.

scholarly journals Real Time Night Vision Surveillance using Improved Dark Channel Prior

2021 ◽  
Vol 9 (VI) ◽  
pp. 1581-1590
Author(s):  
M. V. Naga Bhushanam
Keyword(s):  
Real Time ◽  
Cost Effective ◽  
Night Vision ◽  
Perceptual Quality ◽  
Dark Channel Prior ◽  
Video Enhancement ◽  
Maximum Information ◽  
Gaussian Pyramid ◽  
Dark Channel

Videos taken under low lighting conditions usually result in severe loss of visibility and contrast and are uncomfortable for observation and analysis. Night vision cameras that cater to the needs are expensive and less versatile. To be cost effective and extract maximum information from videos taken in low lit conditions, video enhancing techniques must be used. Though there are many night vision enhancement techniques available in literature, this paper particularly emphasizes about Improved Dark Channel Prior algorithm and its results. This approach suits well for real time night video enhancement. It has been found that a pixel-wise inversion of a night video appears very similar to the video obtained during foggy days. The same idea of haze removal approach is used to boost the visual quality of night videos. An improved dark channel prior model is presented that is integrated with Gaussian Pyramid operators for local smoothing. The experimental results show that the proposed method can boost the perceptual quality of detailing in night videos.

scholarly journals Quality of Service Assurances in Multimedia Network: A Simulation Approach

2018 ◽  
Vol 197 ◽  
pp. 15010
Author(s):  
Suartana I Made ◽  
Prapanca Aditya
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Network Performance ◽  
Ip Networks ◽  
Multimedia Applications ◽  
Multimedia Networks ◽  
Simulation Approach ◽  
Real Time Traffic ◽  
Treat All

QoS is not a consideration at the beginning of the development of IP networks. However, as its growth and support more services including critical and real-time services, QoS support is indispensable. Multimedia applications require different QoS requirements from simple network applications. Multimedia services need more bandwidth, lossless delivery, and strict delay. IP networks treat all traffic, in the same way, this will be a problem for real-time traffic likes multimedia applications. This project uses Multi-Protocol Label Switching (MPLS) and DiffServ QoS management schemes to meet the quality of service requirement in multimedia networks. The aim of this study shows that two methods can improve network performance for multimedia type applications. An analysis to compare the quality of service guarantees provided by these models using a simulation approach. Based on simulation results and analysis shows that two methods improved network performance for multimedia type applications in massive traffic environments.

Managing Real-Time Distributed Multimedia Applications

2011 ◽  
pp. 1-16
Author(s):  
Vana Kalogeraki ◽  
Peter Michael Melliar-Smith ◽  
Louise E. Moser
Keyword(s):  
Quality Of Service ◽  
Resource Management ◽  
Real Time ◽  
Multimedia Applications ◽  
Distributed Multimedia ◽  
Efficient Management ◽  
Multimedia Streams ◽  
Qos Guarantees ◽  
Multimedia Transmissions

Distributed multimedia applications are characterized by timing constraints and end-to-end quality of service (QoS) requirements, and therefore need efficient management mechanisms to respond to transient changes in the load or the availability of the resources. This chapter presents a real-time distributed multimedia framework, based on the Common Object Request Broker Architecture (CORBA), that provides resource management and Quality of Service for CORBA applications. The framework consists of multimedia components and resource management components. The multimedia components produce multimedia streams, and combine multimedia streams generated by individual sources into a single stream to be received by the users. The resource management components provide QoS guarantees during multimedia transmissions based on information obtained from monitoring the usage of the system’s resources.

Development and Application of Quality Control System for Highway Subgrade Construction

2019 ◽  
Vol 2 (5) ◽  
Author(s):  
Tong Wang
Keyword(s):  
Quality Control ◽  
Real Time ◽  
Detection Method ◽  
System Development ◽  
Effective Control ◽  
Construction Process ◽  
Development Mode ◽  
The Road ◽  
Whole Process

The compaction quality of the subgrade is directly related to the service life of the road. Effective control of the subgrade construction process is the key to ensuring the compaction quality of the subgrade. Therefore, real-time, comprehensive, rapid and accurate prediction of construction compaction quality through informatization detection method is an important guarantee for speeding up construction progress and ensuring subgrade compaction quality. Based on the function of the system, this paper puts forward the principle of system development and the development mode used in system development, and displays the development system in real-time to achieve the whole process control of subgrade construction quality.

CONTROL IN REAL TIME THE DENSITY OF PRODUCT AT VARIOUS STAGES OF THE TECHNOLOGICAL PROCESS OF SUGAR PRODUCTION

2020 ◽  
Author(s):  
S.B. Kudryashev ◽  
◽  
N.S. Assev ◽  
R.D. Belashov ◽  
V.A. Naumenko ◽  
...  
Keyword(s):  
Real Time ◽  
Technological Process ◽  
Sugar Industry ◽  
Sugar Production ◽  
Production Processes ◽  
Quality Of Products

The article is devoted to solving one of the most important problems of the development of the sugar industry in Russia – the modernization of sugar production processes. Today, sugar production is actively being modernized, shifting most of its processes to the path of avomatization and optimization to improve the quality of products. This article describes one of the main ways to obtain information about the concentration of sucrose in syrup in the production of sugar.

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