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Description: 视频质量评测模型 一个用于图像质量评测的模型，对于图像质量评测感兴趣的可作参考-Video Quality Evaluation Model 1 for Image Quality Evaluation Model for Image Quality Evaluation interested reference can be made
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Size: 2048 |
Author: 朱立英 |
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Description: 视频质量评价的PSNR评价方法代码，主要针对YUV格式的编码方式。-Evaluation of video quality evaluation method PSNR code, mainly for YUV encoding format.
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Size: 2048 |
Author: 胡国胜 |
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Description: psnr的视频质量评价程序，主要针对YUV422格式的matlab编码程序。-PSNR of the video quality evaluation procedures, mainly for YUV422 format matlab coding procedures.
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Size: 95232 |
Author: 胡国胜 |
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Description: 英文原版。介绍了数字视频处理的基本概念，视频采样，压缩，编码和协议标准等。值得收藏-With the help of hundreds of high quality technical illustrations, this book presents the following topics:
* Basic concepts of digitization, sampling, quantization, gamma, and filtering
* Principles of color science as applied to image capture and display
* Scanning and coding of SDTV and HDTV
* Video color coding: luma, chroma (4:2:2 component video, 4fSC composite video)
* Analog NTSC and PAL
* Studio systems and interfaces
* Compression technology, including M-JPEG and MPEG-2
* Broadcast standards and consumer video equipment
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Size: 3288064 |
Author: ilotusr |
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Description: Designed and Optimized H264 Decoder on ARM9 and ARM11 (25 optimized).
Designed and Optimized H263/MPEG4 Decoder on Freescale SC3400 QuadCore platform (18 optimized).
Designed and Optimized MPEG4 Encoder and improved video quality by changing bitrate algorithm on Freescale StarCore QuadCore platform and ARM11 processors (25 optimized).
Designed and Optimized RealVideo Decoder for ARM11 processor (20 optimized).
Worked on porting of various codecs on ARM processors
- Designed and Optimized H264 Decoder on ARM9 and ARM11 (25 optimized).
Designed and Optimized H263/MPEG4 Decoder on Freescale SC3400 QuadCore platform (18 optimized).
Designed and Optimized MPEG4 Encoder and improved video quality by changing bitrate algorithm on Freescale StarCore QuadCore platform and ARM11 processors (25 optimized).
Designed and Optimized RealVideo Decoder for ARM11 processor (20 optimized).
Worked on porting of various codecs on ARM processors
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Size: 22528 |
Author: satya |
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Description: ITU-T于2008年4月修改发布的视频质量主观评价国际标准-Subjective video quality assessment methods for multimedia applications
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Size: 260096 |
Author: 冯超 |
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Description: Abstract—Based on the observation that low-frequency DCT
coefficients of an image are less affected by geometric processing,
we propose a new blind MPEG-2 video watermarking algorithm
robust to camcorder recording. Both the embedding and
extraction of the watermarks are done in the compressed domain.
The mean of the low-frequency DCT coefficients of the video is
temporally modulated according to the information bits. To
reduce complexity, we embed watermark in the prediction error
signals of the B-frames. Experimental results show that the
proposed scheme achieves high video quality and robustness to
camcorder recording, trans-coding, frame-rate conversion, and
geometric attacks on common test videos.
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Size: 136192 |
Author: lie |
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Description: 视频类包含了很多范围，比如视频会议，即时通讯，聊天室等，其中都有一个核心部件
，那就是音视频的模块，还有相关的通信功能，如文字，点对点，多点等，发送接收文件
，实现了P2P，H.264、AAC的视音频编码标准。
发几个适合自己个人或者公司小或团队整合实验或试用的demo，主要可以实现音视频上的
通讯，如视频会议、视频远程招聘、培训、大型聊天室（单台server支持5000人同时在线
）、应急指挥平台等……
虽然这是一个demo，但是通过使用你就知道它的质量性是怎么样的了~~
不多说，有需要的人可以下载来看看，几个开发版本。。
可以整合到您的系统中，开放了很多的接口，
想让你的系统实现语音视频通讯，快快试试吧！！
更多信息请参考http://xujinquan19.javaeye.com/blog/860748 Q839788402
TEL02038109065
或 http://bairuitech.com-ideo classes contain a lot of scope, such as video conference, instant messaging, chat rooms etc, which has a core component
That the module, and audio related communications functions, such as text, point-to-point, multipoint etc, send receives the file
, realized the P2P, h.264, AAC of audio coding standard.
Post some suit oneself individual or company small or team integrating experiment or trial produce professional demo, basically can realize the audio and video
Communications, such as video remote video conference, recruitment, training, large chat room (single-user server support 5000 people online at the same time
), emergency command platform, etc...
Although this is a produce professional demo, but through the use of you will know that its quality sex is how ~ ~
Not say, those who need to can download to see, several development version.
Can be integrated to your system, an open a lot of interface,
Want to let your system realize voice video communication
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Size: 4057088 |
Author: xujinquan |
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Description: codage de huffman pour les images
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Size: 2323456 |
Author: amira |
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Description: This tutorial gives a survey of actual used techniques for multicast streaming video. We first discuss
important issues in video streaming namely video compression techniques and video compression standards. We then
present the challenges in multicast video streaming and we give a detailed description of recent proposals for multicast
video streaming. We classify these solutions into four approaches depending on the techniques used to adapt the
reception video quality and on the source/receiver/network role
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Size: 75776 |
Author: Ahmed |
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Description: Mobile video surveillance represents a new paradigm that
encompasses, on the one side, ubiquitous video acquisition and,
on the other side, ubiquitous video processing and viewing,
addressing both computer-based and human-based surveillance.
There are many parameters that affect video quality but their
combined effect is not well identified and
Understood when video is transmitted over mobile/ wireless
networks. In addition, video content has an impact on video
quality under same network conditions. The main aim of this
paper is the prediction of video quality combining the
application and network level parameters for all content types.
Firstly, video sequences are classified into groups
Representing different content types using cluster analysis. The
classification of contents is based on the temporal (movement)
and spatial (edges, brightness) feature extraction. Second, to
study and analyze the behavior of video quality for wide range
variations of a set of selected parameters.
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Size: 265216 |
Author: Ahmed |
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Description: 视频会议系统使用户可以利用普通的PC机、标准的视频采集设备（USB摄像头或者视频头+视频采集卡）、耳机和麦克风，实现基于Internet、广域网、局域网的虚拟会议。与传统的基于硬件的H.323解决方案相比，本系统是纯软件解决方案。用户无需投入高昂的成本，就能够实现高质量、高可靠性的音视频通讯的会议功能，有效地节约时间和经费，提高企业的工作效率。
本视频会议系统由服务器软件和客户端软件组成。
-Video conferencing system allows users to make use of common PC, a standard video capture device (USB cameras or video head+ video capture card), headphones and microphone, based on Internet, WAN, LAN virtual meetings. With traditional hardware-based H.323 solution, this system is a pure software solution. Users do not need the high cost of inputs to be able to achieve high-quality, high reliability, audio and video conferencing communication, effectively saving time and money, and improving the work efficiency. The video conference system consists of server software and client software.
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Size: 6932480 |
Author: 马磊 |
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Description: No-reference image and video quality estimation Applications and human-motivated design
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Size: 167936 |
Author: lam |
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Description: Humans are highly visual creatures. Evolution has invested a large part of our neurological resources in visual perception. We are experts at grasping visual environments in a fraction of a second and rely on visual information for many of our day-to-day activities. It is not surprising that, as our world is becoming more digital every day, digital images and digital video are becoming ubiquitous
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Size: 3042304 |
Author: max |
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Description: Video Quality Analysis SoftwareVQS1000.All measurements are performed on decoded video and use standards.The above specification without HW graphics processing enables all measurements to be made on SD or HD MPEG-2 video and SD H.264 video. HD H.264 measurements can be made on reduced area of the screen (50 ) in Single Field mode. Hardware graphics processing is supported to enable full-frame, full-field analysis of HD H.264 content or to reduce processing overhead of SD or HD MPEG-2 video and SD H.264 video
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Size: 44032 |
Author: kallolm |
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Description: 本程序是在H.263的P2P视频聊天程序（本站可下载到）基础上优化升级而成，vs 2008环境，实现了点对点视频通信，分辨率和视频质量有了大幅提升。包括3个工程：x264实现视频编码，ffmpeg实现视频解码，testvideo实现视频采集界面显示和TCP协议传输，需先编译前2个工程生成库文件后供第三个工程调用，编译库时注意修改工程路径及代码中的extern C,也可直接用我编译好的库文件。支持RGB和YUY2(4:2:2)格式输出的摄像头，分辨率支持176x144或352x288两种（修改宏定义即可）。代码中的可执行程序为YUY2输出352x288版本供大家测试使用。-This procedure is in H.263 P2P video chat program (site can be downloaded to) is made on the basis of the optimization and upgrading, vs 2008 environment, to achieve a point to point video communication, resolution and video quality has increased dramatically. Includes three projects: x264 for video encoding, ffmpeg for video decoding, testvideo video collection interface display and the TCP protocol to transmit, you must first compile the project before the two library files generated after the call for a third project, compile libraries attention modification works path and code extern C, can also be directly compiled to use my library file. Supports RGB and YUY2 (4:2:2) output format camera with a resolution of 176x144 or 352x288 two kinds of support (you can modify the macro definition). Executable code for the 352x288 version YUY2 output for all the test used.
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Size: 11926528 |
Author: 孙英晖 |
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Description: 4 full-reference视频质量评估考虑结构变形和MPEG视频——icme02 no-reference质量评价
-4Full-reference video quality assessment considering structural distortion and no-reference quality evaluation of MPEG video--icme02
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Size: 72704 |
Author: fangsm8 |
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Description: the quality diagnostics is used for video quality diagnostic
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Size: 5875712 |
Author: 李战斌 |
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Description: 简单的VC++视频系统源代码，VC++6.0和VS2008工程，可实现一对一、一对多的语音、视频和文字的交流，可以用来开发视频会议系统，语音视频聊天系统，语音质量和视频效果均不错，支持P2P网络传输，可以直接集成到现有的项目中-Simple VC++ video system source code, VC++6.0 and VS2008 project, enabling the exchange of one to one, one to many of the voice, video and text, can be used to develop video conferencing systems, voice and video chat, voice and video quality effects are good, support P2P transmission network, can be integrated directly into an existing project
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Size: 296960 |
Author: 黄勇 |
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Description: 视频，图像，质量分析 。内含 VQA的基础论文，以及一些Image Quality Assessment(IQA) 和 Video Quality Assessment(VQA)的代码(The basic papers containing VQA, as well as some Image Quality Assessment (IQA) and Video Quality Assessment (VQA) codes.)
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Size: 17610752 |
Author: markyT |
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