A High Precision Fresco Scanner

机译：高精度壁画扫描仪

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It is of great significance to digitize ancient paintings and calligraphy. A typical way to acquire them is using a linear CCD based large area table scanner. But it is not suitable for scanning fresco. Our lab has recently developed a new equipment to solve it and hopefully it would shed new light on the documentation of ancient paintings. This paper will discuss the way to improve image sharpness both from theory and practice perspective. In theory, the theoretical optimal aperture determination is discussed. In practice, a test chart is proposed to test the gradual image quality deterioration. From the photo of test chart, the clear part is determined and the percentage of clear part is used to determine the practical optimal aperture. A workflow integrating the above techniques is also proposed. The simulated acquiring experiment shows the method and the scanning hardware can achieve satisfactory results.

机译：数字化古代书画具有重要意义。获取它们的典型方法是使用基于线性CCD的大面积工作台扫描仪。但是它不适合扫描壁画。我们的实验室最近开发了一种新设备来解决该问题，并希望它将为古代绘画的文献学提供新的思路。本文将从理论和实践的角度探讨提高图像清晰度的方法。在理论上，讨论了理论上的最佳光圈确定。在实践中，提出了测试图以测试逐渐的图像质量劣化。根据测试图的照片，可以确定透明部分，并使用透明部分的百分比来确定实际的最佳光圈。还提出了整合以上技术的工作流程。仿真采集实验表明该方法和扫描硬件可以取得满意的效果。

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来源
《Human - computer systems interaction: Backgrounds and applications 2.;part 1.》|2010年|p.214-221|共8页
会议地点 Chengdu(CN);Chongqing(CN);Chongqing(CN);Chengdu(CN)
作者
Xifan Shi; Xianghua Chen; Tiefeng Cai;
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作者单位

Zhijiang College, Zhejiang University of Technology, Hangzhou 310024, China;

Zhijiang College, Zhejiang University of Technology, Hangzhou 310024, China;

Zhijiang College, Zhejiang University of Technology, Hangzhou 310024, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类自动化系统理论;自动化系统理论;人体工程学;
关键词
digital acquisition of cultural heritage; computer-aided cultural relics protection; cultural heritage research; painting high accuracy photographing;

机译：数字获取文化遗产；计算机辅助文物保护；文化遗产研究；绘画高精度摄影;

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A High Precision Fresco Scanner

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