Research on fast loading and accurate measurement algorithm for panoramic images
To address the problems of slow loading speed and low measurement accuracy of panoramic images,this study proposed a dynamic constraint loading algorithm for the panoramic sphere pyramid slicing model.Firstly,the 3D panoramic scene was constructed based on the grid sphere projection model.Secondly,the panoramic image was compressed and sliced,and a panoramic slice pyramid model was designed.Then,the panoramic slices were rendered as texture mapping to the inner surface of the sphere by using inverse Mercator projection to form a panoramic sphere pyramid slice model.Finally,the pyramid model slices were quickly loaded according to the visual area constraints to achieve dynamic visualization,and combined with depth images to achieve accurate measurement of the panoramic image.The experimental results show that by choosing the panoramic sphere pyramid slicing model with a vertex number of 11 904,the error in the measurement is less than 3 cm,and the loading speed is improved at the same time.
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