Signfinder:用颜色来检测、定位和识别信息标志

A. Yuille, Daniel Snow, Mark Nitzberg
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引用次数: 35

摘要

我们描述了一种检测、定位和规范化道路标志的方法。该方法适用于以下情况:(i)标志具有典型的边界形状(即矩形或六边形-当然,我们允许这些形状因投影到未知视点而扭曲),(ii)标志上的文字具有一种统一的颜色,而标志的其余部分具有第二种统一的颜色(我们允许光源的颜色未知)。我们证明,即使在显著的光源颜色变化、视点方向、阴影和遮挡下,该方法也有效。这项工作是一个旨在帮助盲人或视力受损人士的项目的一部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Signfinder: using color to detect, localize and identify informational signs
We describe an approach to detecting, locating and normalizing road signs. The approach will apply provided: (i) the signs have stereotypical boundary shapes (i.e. rectangular, or hexagonal-of course, we allow for these shapes to be distorted by projection to unknown viewpoint), (ii) the writing on the sign has one uniform color and the rest of the sign has a second uniform color (we allow for the color of the illuminant to be unknown). We show that the approach works even under significant illuminant color changes, viewpoint direction, shadowing, and occlusion. This work is part of a project intended to help people who are blind, or whose sight is impaired.
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