New technologies such as Augmented Reality (AR) have already been exploited in the promotion of unique and well-known cultural assets. Nevertheless, different types of heritage assets can be found scattered in many different places, in both urban and rural landscapes, where AR applications may not function properly due to problems concerning the effectiveness of GPS or image recognition methods. It is an important issue that limits the exploitation of AR technology with a view to hidden cultural heritage promotion. The current study presents a hybrid image recognition technique used in an AR application and its evaluation in the outdoor settings. The hybrid technique is based on an image-based marker and its evaluation mainly aimed to study if and to what extent it is accepted by the users, if it raises aesthetic issues, and if it affects the use and acceptance of the AR in culture field. The evaluation was based on a qualitative research and the results showed that to most participants the used hybrid technique does not create an aesthetical issue. Additionally, all participants found the AR app useful and easy to use and they consider that the AR technology can significantly contribute to the promotion of cultural heritage.

中文翻译：

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户外环境中的增强现实

增强现实 (AR) 等新技术已被用于推广独特和知名的文化资产。然而，不同类型的遗产资产分散在许多不同的地方，包括城市和乡村景观，由于 GPS 或图像识别方法的有效性问题，AR 应用程序可能无法正常运行。这是一个重要的问题，限制了AR技术的开发，以促进隐藏的文化遗产。目前的研究提出了一种用于 AR 应用的混合图像识别技术及其在户外环境中的评估。混合技术基于基于图像的标记，其评估主要旨在研究它是否被用户接受以及在多大程度上被用户接受，如果它引起审美问题，是否影响AR在文化领域的使用和接受。该评估基于定性研究，结果表明，对于大多数参与者而言，使用的混合技术不会产生美学问题。此外，所有参与者都认为 AR 应用程序有用且易于使用，他们认为 AR 技术可以显着促进文化遗产的推广。