| With the continuous progress of science and technology,augmented reality glasses that were known as AR glasses,are gradually known by people.In order to find out whether the imaging quality of the same object in space seen from different angles will change suddenly,this thesis studies the measurement method of imaging quality of AR glasses at different angles and the same distance,that is,the method of measuring modulation transfer function(MTF).It is of great significance to the development of AR glasses.In this thesis,based on the surface measurement of AR glasses MTF,a monocular posture measurement and manipulator posture adjustment combined with the surface MTF measurement system was designed.Aiming at the problem that MTF at different angles and the same distance of AR glasses can not be measured by ordinary knife edge method,the monocular vision pose measurement system is used to measure the pose of a marker set in space as an alternative to the pose of the lens to be measured.The robot is controlled to reach the pose state,and the surface of MTF of AR glasses is measured with an internal focusing collimator which can change the virtual knife edge image and virtual working distance.A posture detection and manipulator positioning research system for globoidal MTF measurement was designed and implemented,which included marker image preprocessing,marker recognition and positioning,and globoidal MTF measurement.P4 P artificial markers in the perspective-n-point(Pn P)problem were used to solve the pose of markers,and the MFC manipulator control and positioning system is designed and implemented.The experimental platform is built.The experiment shows that the designed AR glasses surface measurement MTF system based on manipulator pose adjustment can correctly measure the pose of markers and accurately evaluate the imaging quality of AR glasses,which can further provide a new idea for the evaluation of imaging quality of AR glasses. |
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