| 基于DM6437的数字摄像机 |
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| 引用本文： | 张德刚,陈文艺,陈瑞.基于DM6437的数字摄像机[J].电子设计工程,2011,19(8):130-132,136. |
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| 作者姓名： | 张德刚 陈文艺 陈瑞 |
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| 作者单位： | 1. 西安邮电学院电子工程学院,陕西西安,710121
2. 西安邮电学院通信与信息工程学院,陕西西安,710121 |
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| 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。
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| 关 键 词： | 数字摄像机 视频采集 DM6437 VPFE |
A digital camera based on DM6437 |
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| ZHANG De-gang,CHEN Wen-yi,CHEN Rui.A digital camera based on DM6437[J].Electronic Design Engineering,2011,19(8):130-132,136. |
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| Authors: | ZHANG De-gang CHEN Wen-yi CHEN Rui |
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| Affiliation: | 1.School of Electronic Engineering,Xi’an Institute of Post and Telecommunications,Xi’an 710121,China; 2.Department of Telecommunication & Information Engineering,Xi’an Institute of Post and Telecommunications,Xi’an 710121,China) |
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| 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. |
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| Keywords: | digital camera video capture DM6437 VPFE |
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