本文对视频信号采集系统进行了硬件设计和软件开发。
Hardware design and software development the video sample system are shown in the thesis.
阐述了一个新颖的、较为通用的视频信号采集系统软硬件设计原理。
A novel system is designed to digitize general video signals. The hardware principle and software principle of the system are described.
视频处理芯片是嵌入式视频系统的核心部件之一，具有视频信号采集、编码、解码、输出等功能。
Video controller chip, which is one of the important component of video embedded systems, plays an important role in video signal acquisition, decoding, encoding, output and other important functions.
视频信号采集模块中，采用ADV7183芯片实现了视频数据的采集输入，设计乒乓缓冲区数据组织结构实现了视频数据的输入和访问，提高了数据访问效率。
In the video CODEC module, the design based on ADV7183 was proposed. To improve the data access efficiency, a data structure called ping-pong buffer was presented for the input video data.
并且采用了一种利用SRAM芯片的帧存储方法来解决视频信号的采集问题。
It has adopted a kind of frame store method that utilize SRAM chip to solve the collection of video signal.
本文是以视频信号的研究为基础，设计了基于DSP芯片TMS320F206的图像采集处理系统并完成了部分功能模块的调试工作。
In this paper, based on research of video signal, an image collecting and processing system based on DSP chip TMS320F206 was designed, and part of debugging work is finished.
研究开发了能将标准模拟视频信号实时采集存储到硬盘上，并且可以完成预览功能的视频流捕获系统。
Developes a new system used to capture the live composite video signal to the hard disk and preview it in real time.
以某一视频采集卡为例，实现了多路视频信号在微机上的实时处理和控制，同时给出了视频流的显示、录制和回放方法。
Using microcomputer with video-capture CARDS, multi-video signal is controled and gathered, methods of obtain video-data stream is found include video display, record and replay.
电脑外部视频采集就是从外部视频设备输出的视频信号经采集卡输入到电脑内，从而获取视频素材。
Computer exterior video gathering is to get video material through video signals gathered by a video Capture Card from exterior video devices.
利用该视频同步信号发生器控制非标准图像采集卡实现了计算机辐射的随机视频信号的采集和稳定显示。
Using this generator of video synchronous signals to control an image capture card, the acquisition and steady display of the stochastic video information radiated from computer were achieved.
该系统采用TI公司TMS320VC5402DSP芯片作为核心处理器，可以对来自于摄像头的模拟视频信号中的图像进行采集、提取、分析一体化处理。
TI's TMS320VC5402 DSP IC chip is used as the central processor of the system so that the video acquisition, video image extract and data analysis can be integrated into one system.
本论文涉及的是该系统中高速信号处理的前端，即对雷达回波视频信号进行采集。
This thesis mainly discusses the front-end of the high-speed signal process in the system. Namely, it involves the radar echo video signal sampling.
根据该设计方案，本论文完成了该系统的开发工作，实现了视频信号的采集、压缩、实时传输、解压回放以及存储等功能。
According to the design project, the paper finished the development work and the function of capture, encoding, real-time transmission, decoding and storage.
该平台采用CPLD作为图像数据的采集控制单元，DSP作为核心处理单元。同时对视频信号的预处理电路进行了通用化设计，能够有效保证系统对不同波段的图像信号进行采集和处理。
CPLD is used as image sampling control unit and DSP as the system core, and pretreatment circuit is designed to be multifunctional, all these help to sample different wavelength image signals.
所述视频及图片采集部分的视频信号经接口电路与CPU核心控制器实现交互控制。
The signals for the video and the picture collecting part are interactively controlled with the CPU kernel controller via the interface circuit.
采用FPGA实现视频信号数据采集，可提高系统性能，同时具有适应性与灵活性强，设计、调试方便等优点。
Using FPGA to realize video signal collection will enhance the system capability, and easy to design and debug. It also has such advantages as adaptability and flexibility.
系统处理的是连续视频信号，数据量大，采样频率高，本文采用了一种利用FIFO的帧中斯管理方法来解决视频信号的采集问题。
The sampling rate of continuous video data processed by the system is high , so we use a method by the use of FIFO frame buffer to capture the video.
协助采集视频信号数据源。
利用FPGA完成复杂且高速的逻辑控制及时序设计，将采集的图像根据视频信号原理进行裁剪并存储在SRAM中。
FPGA is used to achieve the complex and high-speed logic control and the design of time sequence, with grabbed digital video signal cut and stored in SRAM, under the principles of the video signal.
利用FPGA完成复杂且高速的逻辑控制及时序设计，将采集的图像根据视频信号原理进行裁剪并存储在SRAM中。
FPGA is used to achieve the complex and high-speed logic control and the design of time sequence, with grabbed digital video signal cut and stored in SRAM, under the principles of the video signal.
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