【摘要】 为了适应现代采集系统的小型化以及数字化需要,设计了一种基于达芬奇技术DSP芯片的数字图像采集系统。这种设计方法不需要外接编解码芯片,直接连接数字摄像头,减少了D/A转换带来的图像干扰,同时利用了达芬奇系列DSP上集成的视频处理子系统组件(VPSS),其中的视频处理前端(VPFE)以硬件方式对数字视频图像进行视频采集、CFA插值、色彩空间变换等图像预处理操作,简化了软件设计。结果显示,该系统采集到的视频图像清晰、稳定、色彩均衡,满足普通摄像机对视频图像的要求。更多还原

【Abstract】 In order to adapt the requirement for miniaturization and digitization of modern vedio capture system,a digital image capture syetem based on DaVinci DSP was designed.This design didn’t need to attach an external codec chip,directly linked digital camera,so reduced the interference that brought about by D/A conversation,meanwhile,used the video processing system component(VPSS) intagrated in DaVinci DSP,there was video processing front end(VPFE) in the VPSS,VPFE in hardware way handle image preprocessing such as video capture,CFA interpolation,color space transformationse,simplify software design.Results shows that video image captured by system is distinction,stabilization,color balance,content the requirement of video image for normal camera.更多还原