陈向成老师作为通信作者的论文“Stereo calibration with absolute phase target”（ 基于绝对相位靶的立体视觉标定方法研究）被The 2019 International Conference on Optical and Photonic Engineering录用。

　　陈向成老师于2019年7月15日－2017年7月21日出席在泰国普吉岛举办的The 2019 International Conference on Optical and Photonic Engineerin会议（国际光学与光子工程会议）。2019 年国际光学与光子工程会议于2019 年7 月16 日至20 日在泰国普吉岛举行。会议邀请了学术界和工业界杰出专家学者发表大会演讲，主题报告。会议主题包含了光子工程、三维计算机视觉和图像处理、深度学习等主流及时下热点研究方向。参加会议的具体行程如下：

　　7月15日由武汉出发，经广州转机，于7月15日抵达普吉岛，7月16日至20日参加会议技术报告环节，并于7月18日在做口头报告，7月21日返回武汉。

　　论文摘要如下：

　　Stereo cameras have been widely used for three-dimensional (3D) photogrammetry, and stereo calibration is a crucial process to estimate the system intrinsic and extrinsic parameters. This paper proposes a stereo calibration method with absolute phase target by using horizontal and vertical phase-shifting fringes. The one-to-one mapping from the world points to the image points can be recovered referring to the absolute phase, and then be used to estimate the intrinsic and extrinsic parameters. Compared with traditional methods that only use feature points within the overlapping field-of-view (FOV), the proposed method can use all feature points within the overlapping and non-overlapping FOV.  Besides, since phase is more robust against camera defocusing than intensity, the target images can be captured regardless of the depth-of-field (DOF). With the advantages of whole-field peculiarity and defocusing tolerability, the target placement for the proposed method becomes very flexible. Simulations and experimental results demonstrate the robustness and accuracy of the proposed method.