基于光度立体视觉扩展的博物馆数字化照明控制

Digital Illumination Control Strategy of Museum Based on Photometric Stereoscopic Extension

针对光度立体视觉算法在光源模拟时存在的缺陷问题,结合博物馆数字化照明的实际需求,提出了一种光度立体视觉扩展的博物馆数字化照明控制策略。首先根据朗伯反射特性建立基于光度立体视觉算法的光源模拟模型,然后对其进行非对称光源分布补偿优化和对称光源分布补偿优化,最后利用生成新的校正图像用于光度立体视觉算法的输入,实现光源图像的亮度校正。算法仿真实验结果表明,该算法能够有效实现近点光源强度补偿,获得渲染效果较好的图像,与传统方法相比本文所提算法在性能上更具优势。

Aiming at the defect of photometric stereo vision algorithm in light source simulation and combined with the actual demand of digital lighting in museum,a digital lighting control strategy of museum digital luminosity is proposed. Firstly,a light source simulation model based on the luminosity stereo vision algorithm is established based on the Lambertian reflection characteristic. Then the asymmetric light source distribution compensation and the symmetrical light source distribution compensation are optimized. Finally,a new calibration image is generated for the input of the photometric stereo vision algorithm. Achieve light source image brightness correction. The simulation results show that the proposed algorithm can effectively compensate the intensity of near-point light sources and get the image group with uniform brightness. Compared with the traditional method,the proposed algorithm has more advantages in performance.