Because of the special needs of the micro machine tool , the module about data acquisition of the videomicroscopy used to clearly observe micro tools and small dimension workpiece was exploited through vfw software tool kit 针对微小机床的特殊要求,通过vfw软件工具包特别开发了显微镜视频采集模块,从而在操作界面上可清晰观察到微小铣刀及小尺寸工件。
Because of the cost , the traditional processing system , which has to base on pc and software , cannot be widely used . profiting from the rapid development and excellent performance of dsp , a new video capture and processing system emerges 出于成本等因素的考虑,传统的视频采集及后继处理模块往往在pc机上以软件方式实现,这极大地限制了此类采集设备的应用场合。
After the reform scheme had been proposed , we made pci card to capture and compress the video / audio data , developed the previewing and playback software based on microsoft directx and achieved the design target on the whole 本文在提出了上述对一代车的改造方案后,以pci板卡的形式实现了四路视频采集及压缩,并利用微软公司提供的directx技术实现了视频的实时预览、回放。
The bt819a of brooktree corp is selected for front - end video a / d transforming , bt852 as video d / a , and the tms320c6711 of ti corp . selected for h . 263 core algorithm processing in the system hardware design 该系统硬件设计选择了conexant公司的bt819a芯片为前端视频采集a d芯片， bt852芯片作为后端视频的输出d a芯片，完成对视频信号数字化和逆处理，为dsp对系统功能处理作好准备。
This thesis not only describes the design process of the digital video collection equipment , but also discusses the new research and technology about the h . 264 / mpeg4 - avc standard . and a lot of theories about this technology are studied in this thesis 本论文不仅介绍了基于dsp的视频采集设备的设计和调试,还详细的讲述了h . 264 / mpeg4 - avc标准的发展动态、最新的技术方向,以及相关的技术原理。
We concluded that designing dsp and wavelet transform + spiht coding + mrme method based video compressing system is applicable . if real - time video data collection part is added , we can get a perfect real time video collecting and compressing system 在dsp上实现小波分解+ spiht编码+小波域内运动预测方法进行视频压缩具有较好的实用性，如果在系统中加入实时视频信号采集，可形成完整的视频采集压缩系统。
During design the special license plate recognition system based on dsp , i resolved many problems such as video capture synchronization , the conversion from 16 bits rgb to 24 bits rgb , the interface between dsp and sdram , flash video capture and host pc and so on 在设计专门用于实时牌照识别的dsp的硬件系统中，解决了视频采集的同步， 16位rgb到24位rgb的转换， dsp跟sdram 、 flash 、视频采集芯片以及主机的接口等多个问题。
This image grab card uses saa7111 to translate the analogue signal to digital image data . after buffering in an fifo ram the data are read into computer by a universal pci interface chip , pci9052 . finally the images are displayed on screen 该视频采集卡以fpga为逻辑控制中心,采用saa7111将四路视频信号分别转换为数字图像数据,经fifo缓存后,由pci总线接口芯片pci9052将数据送入计算机,最后通过应用程序将图像显示出来。
The dm642 uses a two - level cache - based architecture , level 1 cache is composed of a 16 - kbit l1p ( level 1 program cache ) and a 16 - kbit l1d ( level 1 data cache ) , level 2 cache consists of 256 - kbit memory space that is shared between program and data space 同时,研究了消除欠采样噪声算法,并实现其处理功能。本文提出的系统设计方案,实现了高速、稳定、灵活的视频采集处理播放平台,可以高速而稳定的持久运行,达到了设计的要求。
Based on the analysis of the principle of video surveillance technology , the video display is realized by the utilization of video acquisition card sdk , which is also combined with the control system for the implementation of automatically triggered snapping and saving of vehicle images 在分析了数字视频监控技术原理的基础上，采用视频采集卡的sdk实现了视频图像的显示，并与控制系统结合实现了对车辆图像的自动触发抓拍与保存。
