摘要
为了更真实再现大范围亮度,获得更接近于真实的画面效果,设计并实现了高动态范围图像采集及其双屏显示系统。首先,研制了基于液晶光阀的光强连续选通成像系统,以实现高动态范围图像采集;其次,通过扩展动态范围图像处理算法将其合成高动态图像;最后,以液晶屏和LED组合作为显示源,双屏叠加,从而显示高动态范围图像。实验证明,所设计的系统图像对比度达到10 000∶1以上,功率减少了60.2%,LED亮度均匀性在95%以上。
A high dynamic range image acquisition and dual-display systems were designed and implemented to reproduce a large range of brightness and get closer to the real picture effect.Based on liquid crystal,a continuous light valve was produced to achieve high dynamic range scenes,which are composited via extending the range of dynamic image,of which a high one was showed through combining LCD and LED displays as the source and overlaying the dual-display.Experiments show that the image contrast ratio of the system is above 10,000∶1,a 60.2% power reduction and a LED brightness uniformity of above 95% are achieved.
出处
《光电子技术》
CAS
北大核心
2012年第1期52-55,共4页
Optoelectronic Technology
基金
国家大学生创新实验基金资助项目(101038629)
福建省自然科学基金资助项目(2010J01333)
福建省科技三项基金资助项目(200F5001)
关键词
高动态范围图像
数据采集
图像处理
双屏显示
high dynamic range image
data acquisition
image processing
dual-display
