Method and device for three-dimensionally measuring complex curved surface parts through multi-optical-sensor cooperation

The invention provides a method and device for three-dimensionally measuring complex curved surface parts through multi-optical-sensor cooperation. The problems of accuracy, efficiency and data integrity when optical measurement is conducted on the complex curved surface parts are solved. According to the method, surface structured light is utilized to conduct quick measurement on reflective complex curved surfaces, measured data measured and acquired by surface structured light are divided, measured data holes and discontinuous zones are determined, secondary measurement is conducted on the data holes and the discontinuous zones by a conoscopic holographic measuring head, point cloud data measured by a surface structured light visual sensor and a conoscopic holographic sensor are integrated in a same coordinate system through a global calibration and optimization registration method of the multiple sensors, and eventually integral three-dimensional point cloud data of the parts are acquired. The measuring system comprises a precise four-axis motion control system and a combination optical measuring head. High-efficiency and high-accuracy measurement for the reflective complex curved surface parts is achieved.