Description: TI DM642 驱动CCD的视频解码与显示编码源代码(D1分辨率),非DSP/BIOS方法,让开发人员能更了解底层CCD视频解码与显示编码驱动基本原理.具体芯片与环境配置请参考驱动文件说明,本程序本人已测试过.-TI DM642-driven CCD video decoding and encoding source code shows (D1 resolution). Non-DSP / BIOS, allows developers will have a better understanding of the bottom CCD video decoding and encoding - driven shows the basic tenets. Chip specific configuration and the environment Drivers reference document shows that the procedures I have tested. Platform: |
Size: 43171 |
Author:John NI |
Hits:
Description: TI DM642 驱动CCD的视频解码与显示编码源代码(D1分辨率),非DSP/BIOS方法,让开发人员能更了解底层CCD视频解码与显示编码驱动基本原理.具体芯片与环境配置请参考驱动文件说明,本程序本人已测试过.-TI DM642-driven CCD video decoding and encoding source code shows (D1 resolution). Non-DSP/BIOS, allows developers will have a better understanding of the bottom CCD video decoding and encoding- driven shows the basic tenets. Chip specific configuration and the environment Drivers reference document shows that the procedures I have tested. Platform: |
Size: 43008 |
Author:John NI |
Hits:
Description: 测试图片本章介绍多媒体信息处理技术的基本问题，包括多媒体数据的分类、多媒体信息的计算机表示、多媒体数据压缩和编码技术、音频卡和视频卡的应用。重点是掌握多媒体信息处理技术的基本概念，学会音频卡和视频卡的安装与使用，了解多媒体技术中数据的压缩与编码方法。通过相关实验，掌握获取多媒体素材的一般方法。 -Test picture deal with multimedia information in this chapter introduce the basic technical issues, including the classification of multimedia data, multimedia information, said computer, multimedia data compression and coding technologies, audio card and video card applications. Focus on multimedia information processing technology to master the basic concepts, learn to audio card and video card installation and use, understanding of multimedia technology in data compression and encoding method. Through the relevant experiments have access to the general method of multimedia material. Platform: |
Size: 50176 |
Author:jiang hu |
Hits:
Description: 本书在介绍数字视频和视频编码的基本原理基础上，论述了H264的特点、编码器原理、解码器原理以及编解码器的实现方案。-This book, introducing digital video and video encoding based on the basic principles, discusses the characteristics of H264, encoder principle, the principle of the decoder and codec realization of the program. Platform: |
Size: 11018240 |
Author:许菀纯 |
Hits:
Description: 视频编码电路主要实现接收8位CCIR656格式的YUV数据，（例如MPEG解码数据），并编码成亮度Y和色度信号C，以及合成CVBS信号，经过D/A转换后输出。基本的编码功能包括副载波产生，色差信号调制，同步信号内插。
主要应用在视频处理，军事图像处理。
GM7221设计原理图-Video encoding circuit main reception 8 CCIR656 format YUV data (such as MPEG decoding the data), and encoded into the brightness Y and chroma signal C, as well as the synthesis of CVBS signal, through D/A conversion output. Basic coding features include sub-carrier generation, color signal modulation, synchronization signal interpolation. Mainly used in video processing, and military image processing. GM7221 design schematics Platform: |
Size: 205824 |
Author:刘星星 |
Hits:
Description: 运动估计是视频编码的关键技术，其最基本的原理是利用相邻帧间的时间
相关性，通过预测来减少时间冗余度。在实际编码中，为了节省码率，并不传
输每一帧的全部数据，而是利用运动估计求出每一帧与其预测参考帧之间的差
值。运动估计越准确，差值的分布越趋近与零，差值块的能量越小，经过变换、
量化和熵编码后所产生的码流的比特位率也越少。因此，运动估计搜索的准确
程度直接影响到了编码的压缩性能。
-Motion estimation is the key to video encoding technology, its basic principle is the use of the adjacent time frame relevant, through the forecast period to reduce redundancy. In the actual code, in order to save bit rate and does not transfer all the data of each frame, but the use of motion estimation for each frame obtained with the prediction of the difference between the reference frame. Motion estimation more accurate, more closer to the margin and the distribution of zero, the smaller the energy difference between blocks, after transform, quantization and entropy coding of the code produced by the bit stream bit rate is less. Therefore, the motion estimation search accuracy of the direct impact on the performance of the compression coding. Platform: |
Size: 17408 |
Author:罗鹏 |
Hits:
Description: 分布式视频编码的关键技术及其发展趋势研究，介绍了分布式视频编码的优缺点，基本原理，展望实用性以及2大关键技术：解码边信息重建；高效编码压缩。另外还列举了一些简单的应用。-Distributed video coding technology and its development trend of the key studies, describes the advantages and disadvantages of distributed video coding, the basic principles of practicality as well as two big prospects key technologies: decoding side information reconstruction efficient encoding. There are a few simple applications. Platform: |
Size: 382976 |
Author:CrisY |
Hits:
Description: 视频编码就是去除视频数据中的冗余信息，本章将要对H263编码方案、H264编码方案和MPEG-4编码方案中的相关技术进行介绍，三种编码方案中H263编码方案中最为基础，其技术可以被后两种编码编码方案用到，本章在介绍H264和MPEG-4两种编码方案时将着重介绍其特色技术。
目 录 1
3.1 视频编码分析 2
3.2 H263编码方案 3
3.2.1 H263层次构成 3
3.2.2 编码技术 16
3.2.3 可选扩展模式 35
3.2.4 离散余弦变换 41
3.2.5 运动估计与补偿 43
3.3 H264编码方案 72
3.3.1 H264层次构成 72
3.3.2 H264编码技术 74
3.3.3 SEI技术 85
3.3.4 H264码表 89
3.4 MPEG-4编码方案 130
3.4.1 MPEG-4结构分析 130
3.4.2 编码技术 138
3.4.3 VBR技术 140
3.4.4 多媒体传送整体框架 142
3.4.5 sprite技术 144
3.4.6 MPEG-4码表 147-Video coding is to remove redundant information in the video data, this chapter will present the H263, H264 and MPEG-4 coding schemes and the relevant technology, the H263 encoding scheme is basic, its technology can be used in the latter two encoding scheme, this chapter will focus on the characteristics of technology for H264 and MPEG-4. Platform: |
Size: 515072 |
Author:城市过客 |
Hits:
Description: H.264和MPEG4视频编码标准方面的国外经典教程。本书对于基本的视频编码原理，H.264和MPEG4使用到的编码技术的细节都进行了详尽的介绍，不失为视频编码方面的一本好书-H.264 and MPEG4 video coding standards, foreign classic tutorial. Book for the basic principles of video coding, H.264 and MPEG4 encoding using the details to have carried out a detailed description is, after all aspects of video encoding with a good book Platform: |
Size: 3932160 |
Author:huang,wei |
Hits:
Description: 摘 要: 为缩短数字视频广播卫星标准( DVB-S ) 接收系统中内码信息的估计时间, 提出了两套解决方案. 方案一:
根据维持比译码过程中, 从当前时刻回溯到译码深度以前时刻的各条幸存路径基本重合的原理进行判定 方案二:
利用“二次编码”的特性, 对译码数据进行再编码, 并采用置信度结合有限状态机构成的判定机制, 加快了估计.-Abstract: In order to reduce the Digital Video Broadcast Satellite standard (DVB-S) reception system in the estimated time-code information within the proposed two solutions. Option One: According to maintain than the decoding process, from the current point back to the decoding depth time before all of the surviving paths to determine the basic principle of coincidence Option Two: Using the " second code" of the characteristics of the re-encoding data decoding and confidence combined with limited use of state institutions as to determine a mechanism to speed up the estimation . Platform: |
Size: 185344 |
Author:赵亮 |
Hits:
Description: 硕士毕业论文《MPEG4-ASP视频编码器算法设计
及DSP实现》：研究和实现了MPEG4-ASP视频编码标准的关键算法——运动估计和全局运动估计，掌握了视频压缩编码的核心技术以及在通用DSP平台上实现视频编码器的技术要点并实现了编码器的原型，为MPEG4-ASP编码在嵌入式领域的实际应用和开发奠定了基础。
-In chapter one and two, we mainly introduce the basic principle of video compression and the video compression standard up to now. In chapter three, we introduce the profile/level in the mpeg4 standard and focus on the discussion of new charcters. In chapter four, we make a detai research and improvement on the key arithmetic module in MPEG4—Motion Mstimation and Globle Motion Estimation, and adopt improved PMVFAST method and a motion vector based no-iterative global motion estimation method in the codec. The experiment proves that the choosed methods are much more efficient than traditional ones. In chapter five, we discuss the DSP implementation of MPEG4-ASP video codec. Considering the hardware platform, we do the software structure design, data movement and memory, cache arrangement. We also do the software pipeline and assmble language optimization. The encoder now can get the achievement of encoding the CIF format frames 20fps. In the last part of the paper, we make a short conc Platform: |
Size: 443392 |
Author:刘洛丹 |
Hits:
Description: 使用C开发的H263编码与解码算法实现。该算法具有非常高的实实时性，而且图像质量也不错。对于学习基本视频会议，有非常大帮助。
-H263 encoding and decoding algorithm for C development. That the algorithm has a very high real real-time, but the image quality is also good. Learn basic video conferencing, there is a very big help. Platform: |
Size: 96256 |
Author: |
Hits:
Description: 音频编码汇总.doc 音频编码N钟格式说明 音视频编码基本常识-Audio coding summary doc audio encoding N clock format describes the basic knowledge of audio and video coding Platform: |
Size: 12288 |
Author:cygnus |
Hits:
Description: it is mp3 MPEg2 Video Encoder, Only I frames currently encoded. The encoded files can be played using any player i used vlc player.
As usual some
1. Use one test.avi file, preferrable 128 x 128 size, you can download http://support.microsoft.com/kb/119383
2. This is just the initial code, updates are likely to happen.
One can use this code just for initial study purposes, for example bit stream packing, basic of video etc. Will further modify this for P frame encoding and will make a simple Profile.
If you happen to use this code and update for P frames please give the link.
Running:
1. Open main_video_enc.m, use the test file to be encoded.
2. Encoded file will be test.m2v. Play using vlcplayer.
3. Only 15 frames are encoded currently modify the index to increase.
-it is mp3 MPEg2 Video Encoder, Only I frames currently encoded. The encoded files can be played using any player i used vlc player.
As usual some
1. Use one test.avi file, preferrable 128 x 128 size, you can download http://support.microsoft.com/kb/119383
2. This is just the initial code, updates are likely to happen.
One can use this code just for initial study purposes, for example bit stream packing, basic of video etc. Will further modify this for P frame encoding and will make a simple Profile.
If you happen to use this code and update for P frames please give the link.
Running:
1. Open main_video_enc.m, use the test file to be encoded.
2. Encoded file will be test.m2v. Play using vlcplayer.
3. Only 15 frames are encoded currently modify the index to increase.
Platform: |
Size: 857088 |
Author:raushan |
Hits:
Description: 人脸作为图像与视频中最重要的视觉对象之一，是智能人机接口等许多应用的处理目标对象。近年来，人脸检测技术在模式识别、计算机视觉、人机交互等诸多领域引起了普遍重视。之所以人脸检测技术在当今计算机视觉等领域的研究中占有重要的地位并成为研究焦点，主要在于以下两个方面：一方面将人脸作为基本是绝对想来考虑，子等检测与定位人脸是实现人脸识别、人脸跟踪、表情识别、人联合成与人脸编码、唇读等技术的必要前提(Face is one of the most important visual objects in image and video, and it is the target of many applications such as intelligent human computer interface. In recent years, face detection technology has attracted widespread attention in many fields, such as pattern recognition, computer vision, human-computer interaction and so on. The research of face detection technology in the field of computer vision and other plays an important role and become the focus of research, mainly in the following two aspects: on the one hand will face as basic is absolutely want to consider, such as face detection and location is a prerequisite for face recognition, face tracking, face recognition, and joint face encoding, lip reading technology; on the other hand) Platform: |
Size: 651264 |
Author:alicemlp
|
Hits:
Search - video basic encoding