Department of Media and Visual ArtsDepartment of Electrical and Electronics Engineering2024-11-1020149781-4503-2945-39781-4503-3185-29781-4503-3304-79781-4503-3401-310.1145/2663806.26638262-s2.0-84938328251http://dx.doi.org/10.1145/2663806.2663826https://hdl.handle.net/20.500.14288/17565The main goal of this research is to develop a mixed reality (MR) application to support motion capture actors. This application allows seeing and exploring a digital environment without occluding the actor's visual field. A prototype is built by combining a retro-reflective screen covering surrounding walls and a headband consisting of a laser scanning projector with a smartphone. Built-in sensors of a smartphone provide navigation capabilities in the digital world. The integrated system has some unique advantages, which are collectively demonstrated for the first time: (i) providing fixed field-ofview (50o in diagonal), fixed retinal images at full-resolution, and distortion-free images that are independent of the screen distance and shape; (ii) presenting different perspectives to the users as they move around or tilt their heads, (iii) allowing a focus-free and calibration-free display even on non-flat surfaces using laser scanning technology, (iv) enabling multiple users to share the same screen without crosstalk due to the use of retro-reflectors, and (v) producing high brightness pictures with a projector of only 15 lm; due to a high-gain retro-reflective screen. We demonstrated a lightweight, comfortable to wear and low cost head-mounted projection display (HMPD) which acts as a stand-a-lone mobile system. Initial informal functionality tests have been successfully performed. The prototype can also be used as a 3D stereo system using the same hardware by additionally mounting polarized glasses and an active polarization rotator, while maintaining all of the advantages listed above.Computer networksComputer entertainment technologyConference proceedinghttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84938328251&doi=10.1145%2f2663806.2663826&partnerID=40&md5=b2b4947b6bc6c3a14d2ea7e97c02a9d0105