上海科技大学知识管理系统

本发明提供了一种基于反照率差的高动态范围环境光动态采集系统，其特征在于，包括：两个颜色不同的反射球；放置在两个反射球球心连线的中垂线上的相机；反射球一、反射球二及相机固定在固定架上；在光照一定的环境下标定两个反射球的反照率，随后固定有反射球及相机的固定架在目标环境中移动，移动过程中，相机拍摄反射球一及反射球二表面内容清晰可见的采集视频。本发明无需多重曝光，单张照片即可获取高动态范围图像；设备要求低，普通相机的拍摄结果也能够获取动态的环境光信息；鲁棒性高，采集系统有一定抖动的情况下也能得到稳定的结果。

The high-dynamic-range ambient light dynamic acquisition system is characterized by comprising two reflection balls with different colors. A camera arranged on the vertical line of the two reflection ball core connecting lines is arranged. A reflection ball, a reflection ball and a camera are fixed on the fixed frame. In a certain environment, the albedo of the two reflection balls is calibrated, and then the fixed mount fixed with the reflection ball and the camera moves in a target environment. High dynamic range images can be acquired without multiple exposure and single photo. The equipment requirement is low, and the shooting result of the ordinary camera can also acquire dynamic ambient light information. The method is high in robustness, and stable results can be obtained under the condition that the acquisition system has a certain jitter.