GIS-based visualisation of rural landscapes: defining 'sufficient' realism for environmental decision-making
GIS-based visualisation of rural landscapes: defining 'sufficient' realism for environmental decision-making
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DOI：
10.1016/s0169-2046(02)00245-1
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发表时间：
2003-10-15
影响因子：
9.1
通讯作者：
Lovett, A
中科院分区：
文献类型：
--
作者：
Appleton, K;Lovett, A
视觉交流在环境决策中越来越普遍，被用作“共同货币”，以促进政策制定者和非专家之间的对话，增加理解，从而改进决策。基于地理信息系统的景观可视化是为咨询工作生成图像的一种方法，虽然技术的不断进步允许扩展到新的领域，如农村景观的可视化，但人们相当大的感觉是，我们不应该让自己仅仅被技术的功能所指导。相反，我们应该仔细评估这些能力的每一次提高是否都能增强可视化的有用性。当考虑到现实主义的进步时，对批判性眼睛的需求尤其明显，因为现实可视化的机会很少与适当详细的数据的可用性相匹配，而观众对诸如准确性和确定性等因素的感知也受到图像中的现实主义水平的影响。根据文献中的建议，本文所述的研究试图确定是否存在比最大可能水平略低的现实主义水平，并开始调查图像中各种元素的相对重要性，如建筑物和前景植被。调查受访者根据他们对风景外观的传达程度对英国乡村场景的几种可视化效果进行了评分，这些场景的元素细节程度各不相同。研究结果并没有显示出足够的现实主义程度的证据，但有力地表明，某些元素比其他元素更重要。研究发现，前景植被和整个场景的地面外观对收视率有显著影响，尽管所用的三个场景的确切效果不同，收视率的许多差异也没有考虑在内。(C)2003 Elsevier Science B.V.保留所有权利。
Visual communication is an increasingly common part of environmental decision-making, being used as a 'common currency' to facilitate dialogue between policymakers and non-experts, increase understanding, and thereby improve the decisions made. GIS-based landscape visualisation is one method of producing images for consultation exercises, and while continuing advances in technology allow expansion into new areas such as the visualisation of rural landscapes, there is considerable feeling that we should not allow ourselves to be guided simply by what the technology can do. Instead, we should carefully assess whether each of these increases in capability can enhance the usefulness of visualisations. The need for a critical eye is particularly apparent when considering the advances in realism, since opportunities for realistic visualisations are rarely matched by the availability of suitably detailed data, and viewers' perceptions of factors such as accuracy and certainty are also affected by the level of realism in an image. Following suggestions in the literature, the research described here attempts to determine whether there might be a 'sufficient' level of realism somewhat below the maximum possible level, and also begins to investigate the relative importance of various elements within an image such as buildings and foreground vegetation. Several visualisations of English rural scenes, with elements at varying levels of detail, were rated by survey respondents according to how well they felt they communicated the appearance of the landscape. The results do not show evidence of a 'sufficient' level of realism, but strongly indicate that some elements are more important than others. Foreground vegetation and the appearance of the ground surface over the whole scene were found to have significant effects on ratings, although the precise effect varied between the three scenes used, and much variation in ratings was not accounted for. (C) 2003 Elsevier Science B.V. All rights reserved.