A tiger cannot change its stripes: using a three-dimensional model to match images of living tigers and tiger skins
A tiger cannot change its stripes: using a three-dimensional model to match images of living tigers and tiger skins
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DOI：
10.1098/rsbl.2009.0028
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发表时间：
2009-06-23
期刊：
影响因子：
3.3
通讯作者：
Karnath, K. Ullas
中科院分区：
文献类型：
--
作者：
Hiby, Lex;Lovell, Phil;Karnath, K. Ullas
老虎是许多物种中的一种，可以通过表面图案识别个体。相机陷阱可以用来记录单个老虎在一系列位置上的移动，并为监测和研究种群以及制定保护策略提供数据。我们建议使用算法的组合来计算从图像扫描的模式样本之间的相似性分数，以自动搜索与新图像的匹配。我们展示了如何使用老虎的三维表面模型来扫描图案样本，从而可以比较在相机角度和身体姿势方面差异很大的图像。该软件可免费下载，大大减少了维护图像目录所需的工作量，我们建议通过搜索活虎图像的中央数据库，寻找与皮肤图像相匹配的图像，可以使用该软件来追踪虎皮的来源。
The tiger is one of many species in which individuals can be identified by surface patterns. Camera traps can be used to record individual tigers moving over an array of locations and provide data for monitoring and studying populations and devising conservation strategies. We suggest using a combination of algorithms to calculate similarity scores between pattern samples scanned from the images to automate the search for a match to a new image. We show how using a three-dimensional surface model of a tiger to scan the pattern samples allows comparison of images that differ widely in camera angles and body posture. The software, which is free to download, considerably reduces the effort required to maintain an image catalogue and we suggest it could be used to trace the origin of a tiger skin by searching a central database of living tigers' images for matches to an image of the skin.