地区级实景三维模型色彩均衡方法实验

自2020年起各省相继启动"实景三维中国"建设,小面积单一场景实景三维建模向地区级全域实景三维建模转变成为一种常态,因量变引起的小区域建模中易被忽略的技术问题也日益凸显,如三维模型成果色彩不均衡问题。由于采集设备、天气情况、地形地貌及航摄状态等诸多要素的影响,地区级实景三维模型成果整体的目视效果往往存在差异。本文以济宁市主城区实景三维建模项目为例,探讨地区级实景三维模型成果色彩均衡的技术方法。结果表明:采用基于模型纹理贴图色彩均衡的方法可以有效提高模型成果整体的目视效果,同时相较于基于原始影像预处理的模型色彩均衡方法,该方法效率提高了9倍。

Experiment on Color Equalization Method of Regional Real Scene 3D Model

Since 2020, "real 3 d China" construction has started in all provinces. Small area of a single scene of 3 d modeling of real changes from regional to global real 3D modeling has become the norm, and small area caused by quantitative modeling easy uncaredfor technical problems is also growing, such as 3D model results color imbalance problem. Due to the influence of many factors, such as acquisition equipment, weather conditions, landforms and aerial photography, the overall visual effects of regional 3D models are often different. Taking the real scene 3D modeling project in the main urban area of Jining city as an example, technical method of realizing the color balance of the real scene 3D model results at the regional level has been studied. It is showed that the method based on model texture map color equalization can effectively improve the overall visual effect of the model results, and the efficiency of the method is increased by 9 times compared with the model color equalization method based on original image preprocessing.