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videocompressionpaper
本论文首先系统地介绍了视频压缩编码的基本原理和方法,以及各国际标准
化组织提出的压缩标准;其次分析了JPEG和MPEG-4的主要技术,据此提出
MPEG-4简单框架编码器的软件实现方案,给出流程图,在VC++环境下用C语言
程序实现了JPEG压缩及MPEG-4简单框架的视频压缩功能,采用测试序列验证
无误,并对两种标准的压缩比进行试验对比,突出压缩的关键技术为DCT和运动
估计算法;接着深入研究了DCT变换、运动估计和补偿算法并进行了优化改进,
给出了用于快速匹配块的自适应十字模式搜索算法,并给出了对各种块匹配估计
算法的仿真结果。然后详细介绍了TI公司TMS320C6711DSP的软硬件特性,并
在此基础上提出系统的硬件实现方案。接着介绍了基于系统软硬件环境的移植问
题和优化方法,并针对算法移植和仿真过程中的问题进行了说明。
最后就课题设计过程中研究的结果予以总结,并阐述了以后课题研究的要点。(In this thesis,an introduction to video compression principal,methods and central
international video coding standards is done firstly.Then analyzing the core techniques
of JPEG and MPEG-4 and proposing a scheme of MPEG-4 SP encoder,the coding
function of JPEG and MPEG-4 is achieved in C successfully with test sequence Then
compare the compressed ratio of two standards,point out the key of compression is DCT
and Motion Estimation algorithm.Afterwards,studying the DCT/Motion
Estimation/Motion Compensation algorithm in detail and giving an adaptive rood
pattern search for fast Block-Matching motion estimation.Then the simulation of several
motion estimation algorithms based block-matching is given.Accordingly,a scheme of
a DSP-based video compression system is put forward,with the features of TI’s
TMS320C6711 DSP.At last,the transplant and optimization are considered on the basis
of soft and hard environments,also the simulation process.
In the end,the summarization about the)
- 2009-09-18 10:40:44下载
- 积分:1
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VC++inimageprocess
Visual C++(以下简称VC++) 是面向对象与可视化软件开发工具中比较成熟的一类。MFC是VC++中直接由Microsoft提供的类库,它集成了大量已定义好的类,我们可以根据需要,调用相应类,或根据需要自定义类。正是基于MFC的这种特性,我们试图设计出具有封装性、独立性的功能模块------函数数据生成模块,函数曲线输出模块,模块之间的桥梁是由模板类CArray派生的CPoint类数组充当的。函数数据生成模块用来实现对函数的设置并获得采样点,数组得到采样点数据并将其传递到输出模块中。从整体来看,实现了各程序模块的独立性,使得在函数模块中可任意添加、删除函数,可使用不同的DC和GDI,可实现不同的输出方式,整个工程在函数绘图功能上是无限扩展的。经过反复的调试和检验,我们实现了预期目标。我们的主要目的是尝试VC++在数学函数绘图方面的功能和应用。这是对VC++的探索,也是对数学函数绘图多样化的尝试。(err)
- 2007-11-23 18:19:49下载
- 积分:1
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TableControl
说明: 工具条控制。编译之后,就可以直接拿来用咯(Toolbar control. After compilation, you can directly make use of them slightly)
- 2011-02-19 13:34:07下载
- 积分:1
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manage
C++ 书籍好的 好的书籍推荐 不要错过
(C++ good books good books recommended)
- 2009-06-03 20:10:55下载
- 积分:1
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cameralcontrol
自己编写的一个聊天摄像头控制程序,可以供初学者使用!(a chat camera control program writted by myself,it maybe a good help to the new learner!)
- 2009-09-25 16:47:02下载
- 积分:1
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dbf
说明: c语言写的,可以读写dbf文件的程序。 (c language to write the read and write dbf file.)
- 2010-04-22 17:04:17下载
- 积分:1
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MFCVLC
用VLC 控件播放视频的 VC源码。。。。
一个VLC控件范例。(Play video using VLC control VC source. . . . Example of a VLC control.)
- 2010-08-05 12:40:26下载
- 积分:1
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level-of-detail-terrain-walkthrough
说明: 基于四叉树的LOD地形漫游程序,比较简单,适合新手学习(LOD terrain roaming procedure is relatively simple, suitable for beginners to learn)
- 2011-02-18 20:08:51下载
- 积分:1
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1
说明: In c++ risks is a reference to a variable which exists i.e. one 2nd name for the same variable.
This program is broken up into functions.露the function hand constitutes the entrance point of the program, firstly there is the function message which us affiche hello , and the second function produced 露procedure affich_calcul, one declared the prototype and one it definite after one made the call has this function.
- 2009-03-31 00:40:15下载
- 积分:1
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VC6 类库参考手册
可称得上中文版的MSDN吧(can be regarded as the Chinese version of the MSDN it)
- 2020-06-26 10:20:02下载
- 积分:1