scholarly journals Picture quality assessment-based on rate control for variable bandwidth networks

2018 ◽  
Vol 23 (4) ◽  
pp. 396-405 ◽  
Author(s):  
Ling Tian ◽  
Jiaxin Li ◽  
Yimin Zhou ◽  
Hongyu Wang
Keyword(s):  
Quality Assessment ◽  
Rate Control ◽  
Picture Quality ◽  
Variable Bandwidth

Research on the Real-Time Video Transmission Mechanism Based on TFRC

2012 ◽  
Vol 195-196 ◽  
pp. 1106-1110
Author(s):  
Fu Xiao ◽  
Ting Hu ◽  
Jian Ping Yu ◽  
Ru Chuan Wang
Keyword(s):  
Quality Assessment ◽  
Real Time ◽  
Video Transmission ◽  
Simulation Experiment ◽  
Evaluation Model ◽  
Video Quality ◽  
Transmission System ◽  
Transmission Mechanism ◽  
Picture Quality ◽  
Video File

TFRC protocol is very suitable for video transmission, while quality assessment is also essential in video transmission system. In this paper a real-time video transmission system based on TFRC protocol is proposed, and an evaluation model about the system is improved in the framework of Evalid. It assesses the quality and efficiency of the video transmission according to the actual video file, and analyzes losses frame in different video types during transmission as well as the picture quality in receiver. The results of simulation experiment in NS-2 show that when real-time video transmitted in complex network environment using this system, the receiver can get satisfactory video quality by reason of the TFRC protocol friendliness and the smoothness of sending rate.

Rate control for improved picture quality in low-bit-rate video coding

2002 ◽  
Author(s):  
Filippo Speranza ◽  
Andre Vincent ◽  
Demin Wang ◽  
Andre Mainguy ◽  
Phil Blanchfield ◽  
...  
Keyword(s):  
Video Coding ◽  
Rate Control ◽  
Picture Quality ◽  
Bit Rate ◽  
Low Bit Rate
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