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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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UsingIDLDrawWidgetPaint
说明: 国内牛人写的DEMO,对于做开发进行C#和IDL混编的人是很好的学习资料(Domestic cattle were written DEMO, for doing development for C# and IDL mixed people are good learning materials)
- 2011-03-04 14:23:09下载
- 积分:1
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6.5-GetSubnet
利用VC技术(包含MFC中的相关函数实现)获取本机的子网掩码。(Use VC technology (including the correlation function in the MFC implementation) to obtain the subnet mask of this machine.)
- 2013-01-18 15:00:48下载
- 积分:1
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BB84
用c语言做的用二分法进行量子加密,请大家改正批评
(Using c language for the use of the dichotomy of quantum encryption, please correct criticism)
- 2009-01-07 14:23:01下载
- 积分:1
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tanhaoqiangdiwuzhang
谭浩强c++课件第五章 是一个很好的C++学习课件 值得拥有(Hemopurification c++ courseware fifth chapter is a good learning courseware deserve C++)
- 2014-01-14 11:40:14下载
- 积分:1
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yzcc133
学习c 的很好的书记,可以用很多实力来学习它,对你们很有帮助(learning the good secretary can give a lot of strength to learn from it, to help you)
- 2005-06-01 22:31:58下载
- 积分:1
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crypto_api_doc
说明: 介绍关于crypto_api的相关使用说明,着重于运用。(Introduce the relevant instructions on the crypto_api focus on the use.)
- 2010-04-26 11:12:48下载
- 积分:1
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back_pressure_UDF
说明: 设置fluent中出口背压的udf代码,可以方便的设置,也可以用来改写进出口的非恒定压力!(fluent udf code)
- 2020-11-26 22:19:32下载
- 积分:1
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VcPP--zip.
关于C语言中运算符和关系表达式的内容,及各式例题(Content on the C language operators and relational expressions, and various examples)
- 2014-03-27 13:26:35下载
- 积分:1
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C-Primer-plus
C Primer plus,经典的c语言编程书籍,值得一看(C Primer plus)
- 2014-11-30 15:57:40下载
- 积分:1