一种倾斜摄影实景三维模型实时匀光匀色流程研究

The Study on a Real Time Light and Color Blending Process Flow for Real 3D Model Based on Oblique Photography

不同批次倾斜摄影实景三维模型因航摄条件不同易产生色彩、明暗度不一致等问题,传统做法是对原始倾斜影像统一匀光匀色后再重新建模,工作量大。本文实现了一种面向实景三维模型的实时匀光匀色流程,基于可视化三维平台,解析模型结构基础上,利用着色器编程实现参数可调整的匀光匀色算法,用户通过不断调整参数,实时获得不同匀光匀色结果。实验证明,该方法流程简洁、交互性强,极大提升了实景三维模型的匀光匀色效率。

Due to different aerial photographing conditions,different batches of tilt photographing real scene 3D models are prone to problems such as inconsistent color and lightness.The traditional method is to uniformly homogenize the original tilt images and then remodel them,which requires a large workload.In this paper,a real-time light and color blending work flow is proposed.On the basis of analyzing the model structure,a shader programming method is used to establish a light and color blending algorithm model,and the dynamic adjustment of parameters is realized based on the visual 3D platform.The results of light and color blending of the three-dimensional model are obtained in real time.Experiments show that this method has a simple process and strong interactivity,which greatly improves the light and color blending efficiency of the real three-dimensional model.