IMAGE-BASED SURFACE MEASUREMENT FOR CLOSE-RANGE HERITAGE DOCUMENTATION
IMAGE-BASED SURFACE MEASUREMENT FOR CLOSE-RANGE HERITAGE DOCUMENTATION
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发表时间：
2008
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通讯作者：
Fabio Remondinoa;Fabio MENNAc
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作者：
Fabio Remondinoa;Fabio MENNAc
最近电子学的新发展导致了用于地面相机的新的高分辨率数字传感器(高达3900万像素)的制造。这些技术创新，加上新的图像匹配处理算法，使我们能够以几乎自动的方式获得基于图像的表面模型，其精度和细节水平肯定可以与使用有源传感器实现的表面模型相媲美。考虑到这一点，我们介绍了使用数字图像进行地面3D表面重建和对象建模的新进展，报告了使用低成本数码相机和商业或内部软件进行的一些测试。测试选择了不同类型的物体(低浮雕、雕像、建筑、小型文物发现等)，使用不同的摄像头配置和不同的图像分辨率。分析了不同的图像匹配过程，比较了基于区域、基于特征或两者相结合的匹配过程。对结果进行了严格的审查，特别注意日常考古或遗产记录的目的。
Recent new developments in the electronics have leaded to the manufacturing of new high-resolution digital sensors (up to 39 mega pixel) for terrestrial cameras. These technological innovations, together with new processing algorithms of image matching, allow to obtain image-based surface models in an almost automatic way with an accuracy and a detail level that can be surely compared with the one achievable with active sensors. With this in mind, we present new developments in terrestrial 3D surface reconstruction and object modeling using digital images, reporting some tests conducted using low cost digital cameras and commercial or in-house software. The tests were conducted selecting different kinds of objects (low relief, statue, buildings, small heritage find, etc.), with different camera configurations and different image resolutions. Different image matching procedures are analyzed, comparing area-based, feature-based or an integration of both. A critical examination of the results is presented, with particular attention to the daily archaeological or heritage documentation purpose.