Journal of East China Normal University(Natural Science) ›› 2022, Vol. 2022 ›› Issue (6): 102-122.doi: 10.3969/j.issn.1000-5641.2022.06.011

• Computer Science • Previous Articles     Next Articles

High resolution panorama generation method for irregular cylindrical murals

Wei HE1, Weiqing TONG1,2,*()   

  1. 1. School of Computer Science and Technology, East China Normal University, Shanghai 200062, China
    2. Shanghai Commercial Digital Printing Co. Ltd., Shanghai 200041, China
  • Received:2021-09-10 Online:2022-11-25 Published:2022-11-22
  • Contact: Weiqing TONG


The issue of how to unfold an irregular cylindrical mural from the top surface of a cave corridor into a panorama is a challenge for researchers involved with ancient mural protection and secondary development. This paper presents a method of dividing cylindrical murals into many overlapping small areas for sampling firstly, and then stitching these sampled images into a panorama. The constituents of this method include the following key elements: ① Reconstructing the 3D model with the sampled image set; ② Mapping the image texture to the 3D model; ③ Fitting the reconstructed irregular 3D cylindrical surface to the ideal cylindrical surface which is closest to the original form; and ④ Projecting the mural of the ideal cylindrical surface to a panorama. The method proposed in this paper was verified on an actual cave image set. The experimental results showed that the proposed method can generate the panorama in full; moreover, there was no evidence of stitching traces or texture deformation on the panorama. The proposed method offers practical value for mural protection.

Key words: panorama, cave murals, 3D reconstruction, image stitching

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