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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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Cexample
经典的C语言小程序220例,想学习C语言的拿来练手很好(The classic C language applet 220 cases, want to learn C language used to practice good hand)
- 2013-11-24 23:09:50下载
- 积分:1
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maopao
实现冒泡排序的例程,c++6.0编写,来自c语言学习(This program can reality bubbling sort.)
- 2018-03-11 16:01:35下载
- 积分:1
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非线性优化中的经典算法
BriefDescriptionoftheLM
非线性优化中的经典算法,LM算法,老外写的,言简意赅,对写优化程序很有用(nonlinear optimization of the classical algorithm, LM algorithm, a foreigner writing is concise and clear and optimization process of writing useful)
- 2006-12-27 09:37:58下载
- 积分:1
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点过咯这
说明: dian guo lo zhe,cao,hello word
- 2019-05-09 20:25:10下载
- 积分:1
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vckbase32-40
说明: VC知识库32-40合集 关于VC++的点点滴滴(VC 32-40 Knowledge Collection on VC++, bit by bit)
- 2011-03-05 21:15:10下载
- 积分:1
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PieChart
PieChart实例源码,它是用于制作三维立体饼形统计图(PieChart example source code, which is used to produce three-dimensional pie charts)
- 2011-01-24 11:53:28下载
- 积分:1
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vc-DB-Deveopment-examples-book
《Visual C++数据库开发技巧与实例》,比较经典的一本数据库学习书籍。(" Visual C++ database development techniques and examples," a database to learn more classic books.)
- 2011-02-13 11:05:46下载
- 积分:1
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GNSS
这本书延伸科学畅销书“全球定位系统 - 理论与实践”,以涵盖全球导航卫星系统(GNSS),包括俄罗斯GLONASS,欧洲伽利略系统,以及其他系统。书是指在一般意义到GNSS来描述各种现有参考系统的坐标和时间,卫星轨道,卫星信号,可观察,数学模型的定位,数据处理,和数据转换。本书是一本大学级入门教材,目的是作为学生的参考以及为专业人士和科学家在大地测量领域,测量工程,导航和相关学科。(This book extends the scientific bestseller GPS- Theory and Practice to cover Global Navigation Satellite Systems (GNSS) and includes the Russian GLONASS, the European system Galileo, and additional systems. The book refers to GNSS in the generic sense to describe the various existing reference systems for coordinates and time, the satellite orbits, the satellite signals, observables, mathematical models for positioning, data processing, and data transformation. This book is a university-level introductory textbook and is intended to serve as a reference for students as well as for professionals and scientists in the fields of geodesy, surveying engineering, navigation, and related disciplines.)
- 2016-09-24 16:59:09下载
- 积分:1
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Log
有了合适的处理对象,剩下的就是技术问题了。在数字运动检测中运用的关键技术有图像数据读取、图像的中值滤波、图像灰度化、图像梯度的获取、图像特征区域的确定、两幅图像的匹配、图像二值化、图像细化、图像去离散点的操作、物体的区域定位、物体中心点的取得,最后再从图片中得到物体运动轨迹。本运动检测系统是为了实现对一系列图片中运动物体的跟踪而设计的,它通过对一系列图片的处理,提取出图片背景,识别出运动物体,进而对运动物体进行跟踪,得到物体运动的轨迹。本文主要阐述了什么是数字图像处理、数字图像处理的基本要求、数字图像处理的实践及开发工具的特点、功能、()
- 2008-05-24 13:11:44下载
- 积分:1