Projected augmented reality based assembly guiding system using Kinect
                                                        PANG Lieyong1, CHEN Chengjun1, LI Dongnian1, HONG Jun2
（1.School of Mechanical & Automotive Engineering Qingdao University of Technology, Qingdao 266520, China;2.School of Mechanical Engineering ,Xian Jiaotong University, Xian 710049, China）

Abstract: Aiming at the problems in mass customization, such as low assembly efficiency, frequent changes of assembly process, assembly mistakes etc., a projected augmented reality assembly guidance system was proposed and designed. Comparison of the wearable equipment and manual operation of the computer equipment during assembly induction process were summarized. The induction information such as text, pictures and 3D animation into the real assembly scene to induce the operator to complete the product assembly was tested. A handfree interaction method in assembly induction process was proposed. A projection augmented reality method based on viewpoint tracking to automatically transform the projected image and make the projection content change with the operators viewpoint was proposed by using Kinect to track the operators head orientation. The results indicate that the system can improve humanmachine interaction and enhance guidance efficiency in manual assembly.

Key words: projected augmented reality; assembly guiding; gesture recognition; viewpoint tracking