基于图像分析的室外文物病害演变监测方法与应用实例.docxVIP

基于图像分析的室外文物病害演变监测方法与应用实例 　　内容提要：为探明造成室外文物及遗址?l生病害变化的原因，给文物的预防性保护提供可靠的量化依据，本文提出基于图像分析的适合室外赋存环境下的文物本体病害演变监测方法。通过对颐和园赅春园清可轩和流云阁室外文物两年连续的监测实例，验证了本文所提出的监测方法可以有效解决室外文物本体病害演变监测中的相机位姿和光照的差异校正问题，达到了精确量化度量室外文物本体病害演变的目的。　　关键词：图像分析；预防性保护；相机重定位；光照一致化　　中图分类号： 文献标识码：A 文章编号：1000--0130-07　　Outdoor Heritage Deterioration Monitoring：　　Method and Practice　　YUE Qifeng1，2 HUANG Rui1，2 FENG Wei1，2　　ZHANG Long3，4 CONG Yipeng5 SUN Jizhou1，2　　， State Administration of Cultural Heritage， Tianjin University， Tianjin ； 3. School of Architecture， Tianjin University， Tianjin ； 4. Key Scientific Research Base of Building Surveying and Mapping of Cultural Relics， State Administration of Cultural Heritage， Tianjin University， Tianjin ； 5. Beijing Summer Palace Administration， Beijing ）　　Abstract： This paper proposes an image analysis based method to monitor the evolution of cultural relic deterioration in outdoor environments， which helps to explain the changes in deterioration and thus provide reliable quantified evidence for preventative heritage protection. Specifically， we first propose a visual navigation camera re-localization method based on image analysis， which solves the problem of positioning and re-localization of monitoring equipment. We then present an illumination correction method based on image intrinsic decomposition and reconstruction to eliminate the negative influence of illumination caused by outdoor cultural relic imaging within complex illumination conditions. The results of monitoring the stone-sculpted relics of Qingkexuan and Liuyunge in the Summer Palace show that the proposed method can effectively eliminate the differences in camera position and illumination during the monitoring of deteriorating outdoor cultural relics and thus obtain precision quantified evaluation of the changes in deterioration.　　Keywords： image analysis； preventative protection； camera re-localization； intrinsic image decomposition　　一 引 言　　近年来，随着人类文化事业的快速发展，文化遗产保护工作也逐渐受到了国家和广大人民的重视。目前针对