“Floating heart” application of holographic 3D imaging in nursing education

Abstract

This study combined 3D holographic imaging and hand gesture recognition technologies to develop an intuitive and control-based interactive holographic imaging teaching aid system for practical application in nursing education to enhance teaching effectiveness. Cardiovascular structure was developed through 3D scanning, which was then subjected to postproduction to be converted into a 3D vector layer object. After segmenting the 3D object into different images with different viewing angles, a self-made holographic projection display equipment was used to project a 3D floating image to enhance the on-site experience of instructors and learners. By using a gesture sensing module, instructors could freely operate teaching objects by using intuitive gesture controls during on-site teaching. This system was applied to the 2-year adult nursing curriculum offered by the nursing department. After the coursereflections of 90 students were summarized into the following categories: rescue imagination, conquer th. abstract, transform 2D into 3D, facilitate self-controlled learning, and dynamically understand memory. The system effectively enhanced the convenience of teaching as well as the learning motivation and effectiveness among students. In the future, we hope that this system is applied to other professional courses and becomes a powerful on-site teaching aid.