Iwai Daisuke
Graduate School of Engineering Science, Osaka University.
Proc Jpn Acad Ser B Phys Biol Sci. 2024;100(3):234-251. doi: 10.2183/pjab.100.012.
This study summarizes current trends and future directions in projection mapping technologies. Projection mapping seamlessly merges the virtual and real worlds through projected imagery onto physical surfaces, creating an augmented reality environment. Beyond traditional applications in advertising, art, and entertainment, various fields, including medical surgery, product design, and telecommunications, have embraced projection mapping. This study categorizes recent techniques that address technical challenges in accurately replicating desired appearances on physical surfaces through projected imagery into four groups: geometric registration, radiometric compensation, defocus compensation, and shadow removal. It subsequently introduces unconventional projectors developed to resolve specific technical issues and discusses two approaches for overcoming the inherent limitations of projector hardware, such as the inability to display images floating above physical surfaces. Finally, this study concludes the discussion with possible future directions for projection mapping technologies.
本研究总结了投影映射技术的当前趋势和未来发展方向。投影映射通过将虚拟图像投射到物理表面上，无缝融合虚拟世界和现实世界，创造出增强现实环境。除了在广告、艺术和娱乐领域的传统应用外，投影映射还被应用于包括医学手术、产品设计和电信在内的各个领域。本研究将近期通过投影图像在物理表面上精确复制所需外观时解决技术挑战的技术分为四类：几何配准、辐射补偿、散焦补偿和阴影消除。随后，介绍了为解决特定技术问题而开发的非常规投影仪，并讨论了两种克服投影仪硬件固有局限性的方法，如无法显示漂浮在物理表面上方的图像。最后，本研究以投影映射技术可能的未来发展方向结束了讨论。
