Detection of scene-irrelevant head movements via eye-head coordination information

Background Accurate motion tracking in head-mounted displays(HMDs)has been widely used in immersive VR interaction technologies.However,tracking the head motion of users at all times is not always desirable.During a session of HMD usage,users may make scene-irrelevant head rotations,such as adjusting the head position to avoid neck pain or responding to distractions from the physical world.To the best of our knowledge,this is the first study that addresses the problem of scene-irrelevant head movements.Methods We trained a classifier to detect scene-irrelevant motions using temporal eye head-coordinated information sequences.To investigate the usefulness of the detection results,we propose a technique to suspend motion tracking in HMDs where scene-irrelevant motions are detected.Results/Conclusions Experimental results demonstrate that the scene-relevancy of movements can be detected using eye-head coordination information,and that ignoring scene-irrelevant head motions in HMDs improves user continuity without increasing sickness or breaking immersion.

A survey of immersive visualization:Focus on perception and interaction

Immersive visualization utilizes virtual reality,mixed reality devices,and other interactive devices to create a novel visual environment that integrates multimodal perception and interaction.This technology has been maturing in recent years and has found broad applications in various fields.Based on the latest research advancements in visualization,this paper summarizes the state-of-theart work in immersive visualization from the perspectives of multimodal perception and interaction in immersive environments,additionally discusses the current hardware foundations of immersive setups.By examining the design patterns and research approaches of previous immersive methods,the paper reveals the design factors for multimodal perception and interaction in current immersive environments.Furthermore,the challenges and development trends of immersive multimodal perception and interaction techniques are discussed,and potential areas of growth in immersive visualization design directions are explored.

Guest Editorial: Special Issue on Internet of Things

Internet of Things（IoT）is a new paradigm that the ubiquitous smart objects,such as devices,vehicles,buildings,etc.,interact and exchange data through emerging wireless technology with the intention of improving people’s quality of lives in variety areas,such as transportation,manufacturing industry,health care industry,etc：Besides benefits,