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首页> 外文会议>Conference on Document Recognition and Retrieval Ⅷ Jan 24-25, 2001, San Jose, USA >An experimental tool for generating ground truths for skewed page images
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An experimental tool for generating ground truths for skewed page images

机译：一种为歪斜页面图像生成基本事实的实验工具

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摘要

We describe a new tool called GROTTO to generate ground truths for skewed page images, which can be used for performance evaluation of page segmentation algorithms. Some of these algorithms are claimed to be more or less insensitive to skew. However, this fact is usually only supported by a visual comparison of what one obtains and what one should obtain. As a result, the evaluation is both subjective, that is, prone to errors and tedious. Our tool allows users to quickly and easily produce many sufficiently accurate ground truths that can be employed in practice and therefore it facilitates automatic performance evaluation. The main idea is to utilize the ground truths available for upright, images, that is, for those without skew, and the concept of the representative square1 in order to produce the ground truths for skewed images. The usefulness of our tool is demonstrated through a number of experiments described.
机译：我们描述了一种名为GROTTO的新工具，可为歪斜的页面图像生成基本事实，可用于页面分割算法的性能评估。这些算法中的某些声称对偏斜或多或少不敏感。但是，这一事实通常只能通过对获得的内容和应该获得的内容进行视觉比较来支持。结果，评估既是主观的，即容易出错和乏味。我们的工具使用户可以快速，轻松地产生许多可以在实践中使用的足够准确的基础事实，因此有助于进行自动性能评估。主要思想是利用可用于直立图像（即没有偏斜的图像）的基本事实，以及具有代表性的square1的概念，以便生成偏斜图像的基本事实。我们通过描述的许多实验证明了我们工具的有用性。

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