基于单次曝光光场成像的全焦图像重建技术

为了实现大景深信息全焦面高质量成像，提出了基于单次曝光光场成像的导向滤波全焦图像重建技术:结合光场成像采集视场信息，并采用光场重建的方式获取多聚焦图像源集，利用导向滤波的方法确定各级图像融合权重，进行图像融合得到大景深的全焦图像。实验证明，提出的基于单次曝光光场成像的导向滤波全焦图像重建技术不仅有效保证了多聚焦图像背景的一致性，同时还具有更好的边缘保持效果，从而获得了清晰度更高、综合成像质量更好的全焦图像，因此该技术有望用于现场监控、地理勘探、军事侦察以及无人驾驶等众多领域中。

Single exposure light field imaging based all-in-focus image reconstruction technology

In order to obtain the high quality all-in-focus imaging in large depth of view,an all-in-focus image reconstruction technology based on single exposure light field imaging and guided filter was proposed.First,the field of view information was collected by the optical field imaging,and the multi-focus image source set was obtained by the optical field reconstruction.Then the guided filter method was used to determine the weight of image fusion at all levels,and finally the image fusion was performed to obtain the all-in-focus image with extremely large depth of field.The experimental results show that the proposed method not only effectively ensures the background consistency,but also keeps the edge retention to reconstruct the all-in-focus image with high quality.Therefore,the proposed technology can be potentially adopted in many applications such as on-site monitoring,geographical exploration,military reconnaissance and unmanned technologies,etc.