LED显示屏灯点逐点校正系统

发布时间：2018-01-03 17:15

本文关键词：LED显示屏灯点逐点校正系统　出处：《计算机技术与发展》2015年12期 　论文类型：期刊论文

更多相关文章： 纹理检测 LED灯点 校正系数 点定位

【摘要】：随着LED显示屏的大规模投入使用,对于LED显示屏显示的质量要求越来越高。显示的校正早已在LCD液晶显示器中普遍使用,而LED显示还处于初级发展阶段,LED显示屏的校正也还处在初级阶段,LED显示屏是由一个一个LED灯管组成,由于每个LED灯管出厂时显示特性几乎都不一样,而且相差很大,就显示亮度而言差异可以达到30%;所以LED的校正会明显提升LED显示屏的显示效果。文中提出了一种基于纹理的LED灯点定位算法,并提出了一整套的校正系数处理办法,以提高校正精度。最后对整个算法进行了实验分析、论证。文中对亮度非均匀性约为15%的LED屏进行了校正,校正后显示屏的亮度非均匀性降低到了4.1%,显示效果提升很明显。
[Abstract]:With the large-scale use of LED display screen, the quality requirement of LED display screen is becoming more and more high. The correction of display has been widely used in LCD LCD. The LED display is still in the primary stage of development and the correction of the LED display is also in the primary stage. The LED display is composed of a LED lamp tube. Because of each LED lamp factory display characteristics are almost different, and very different, on the display brightness difference can reach 30%; Therefore, the correction of LED can obviously improve the display effect of LED display screen. In this paper, a texture-based LED lamp location algorithm is proposed, and a set of correction coefficient processing methods are proposed. In order to improve the accuracy of correction. Finally, the whole algorithm is analyzed experimentally and demonstrated. The LED screen with brightness nonuniformity of about 15% is corrected in this paper. After correction, the brightness nonuniformity of the display is reduced to 4.1, and the display effect is obviously improved.
【作者单位】：四川大学视觉合成图形图像技术国防重点学科实验室;四川大学计算机学院;
【基金】：国家“863”高技术发展计划项目(2013AA013902)
【分类号】：TN873
【正文快照】： 0引言LED显示屏是由成千上万颗LED发光二极管组成,LED显示屏的一个像素点就由RGB三色二极管组成,来显示文字、图片、图形图像、视频动画等;LED相较于以前的显示技术的优势是,LED显示屏完全不受尺寸的影响,可以做到几十上百米的尺寸。LED显示屏广泛用于城市中心的广场和一些会

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