{"title":"360° curved surface stitching projection light field display and reuse acceleration encoding algorithm based on parallax image","authors":"Haiyang Yu , Xiaoyu Jiang , Xingpeng Yan , Qingyu Meng , Xiaoming Chen , Jiexuan Guo , Zhaoxuan Zhang","doi":"10.1016/j.optlaseng.2025.109103","DOIUrl":null,"url":null,"abstract":"<div><div>This study established a 360° curved surface stitching light field 3D reconstruction system and proposed a novel Curved surface Stitching Reuse Acceleration (CSRA) light field encoding algorithm based on parallax images, alongside a surface stitching light field calibration algorithm, collectively achieving a 360° horizontal parallax naked-eye 3D display. Improved from the traditional flat algorithm, the CSRA algorithm computes the mapping relationships for each reconstruction light ray under curved conditions by leveraging the central symmetry of the 360° curved surface light field for path reuse acceleration. This method significantly boosts encoding speed while preserving reconstruction quality. Concurrently, the surface stitching light field calibration algorithm proficiently amends reconstruction errors through multi-partition perspective transformations. The application of these algorithms in a 360° projection light field reconstruction system utilizes a circular array of projectors and cylindrical lens compound diffusers to generate expansive, 270° field-of-view three-dimensional display effects horizontally. Tested with various datasets, the system demonstrated high visual fidelity, as evidenced by PSNR and SSIM indices, and notably quicker encoding times, more than 57 times faster than conventional methods. This research not only highlights the feasibility of dynamic light field displays but also establishes a foundation for real-time light field applications, advancing the frontiers of 3D display technology.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"194 ","pages":"Article 109103"},"PeriodicalIF":3.5000,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Lasers in Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S014381662500288X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
This study established a 360° curved surface stitching light field 3D reconstruction system and proposed a novel Curved surface Stitching Reuse Acceleration (CSRA) light field encoding algorithm based on parallax images, alongside a surface stitching light field calibration algorithm, collectively achieving a 360° horizontal parallax naked-eye 3D display. Improved from the traditional flat algorithm, the CSRA algorithm computes the mapping relationships for each reconstruction light ray under curved conditions by leveraging the central symmetry of the 360° curved surface light field for path reuse acceleration. This method significantly boosts encoding speed while preserving reconstruction quality. Concurrently, the surface stitching light field calibration algorithm proficiently amends reconstruction errors through multi-partition perspective transformations. The application of these algorithms in a 360° projection light field reconstruction system utilizes a circular array of projectors and cylindrical lens compound diffusers to generate expansive, 270° field-of-view three-dimensional display effects horizontally. Tested with various datasets, the system demonstrated high visual fidelity, as evidenced by PSNR and SSIM indices, and notably quicker encoding times, more than 57 times faster than conventional methods. This research not only highlights the feasibility of dynamic light field displays but also establishes a foundation for real-time light field applications, advancing the frontiers of 3D display technology.
期刊介绍:
Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods.
Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following:
-Optical Metrology-
Optical Methods for 3D visualization and virtual engineering-
Optical Techniques for Microsystems-
Imaging, Microscopy and Adaptive Optics-
Computational Imaging-
Laser methods in manufacturing-
Integrated optical and photonic sensors-
Optics and Photonics in Life Science-
Hyperspectral and spectroscopic methods-
Infrared and Terahertz techniques