Evaluating the Combination of Visual Communication Cues for HMD-based Mixed Reality Remote Collaboration

Effect of Body Representation Level of an Avatar on Quality of AR-Based Remote Instruction

“…Usability is the degree of ease with which a system can be used to achieve the required goals. It includes several aspects, such as learnability and ease-of-use, and has been widely used to evaluate remote collaboration systems [4,5,11,19,20,38,39]. The workload is the amount of effort a user must spend to accomplish a task.…”

“…The workload is the amount of effort a user must spend to accomplish a task. No standard method to evaluate the workload in a task performed using a remote collaboration system exists; some researchers have employed a self-designed questionnaire [5], although most studies have used an existing questionnaire, such as the NASA Task Load Index (NASA-TLX) [29,30,[40][41][42], SMEQ [20,39], or SEQ [20]. The performance is a fundamental aspect in evaluating a remote instruction system.…”

Avaliação do Impacto do Uso de Realidade Aumentada em Atividades Colaborativas em Contexto Industrial

“…Já Kim et al [7] apresentam uma avaliação sobre o impacto do uso de diferentes recursos visuais em realidade aumentada e virtual para realização de tarefas colaborativas remotas. Para avaliar como esses recursos impactam na colaboração foram utilizadas diferentes tarefas simples: montar um tangram, um origami e um conjunto de LEGO.…”

“…No trabalho de Cidota et al [2] foi realizado uma avaliação sobre o impacto de notificações visuais e auditivas para avaliar a noção de presença em colaborações remotas. Como tarefa de estudo foi utilizado um puzzle, pois ele atua como um representação de atividades de alta demanda mental, de forma semelhante as tarefas utilizadas no trabalho de Kim et al [7]. A solução desenvolvida pelos autores apresenta dois tipos de aviso para ações do usuário remoto, sendo eles: um ícone no campo de visão do HMD utilizado e outra um aviso sonoro.…”

Hand-in-Air (HiA) and Hand-on-Target (HoT) Style Gesture Cues for Mixed Reality Collaboration

“…Recently, some researchers [4][12] [13] implemented an interface supporting a pointer cue and HiA hand gestures so collaborators used the pointer for indicating distant objects and hand gestures for other information. However, the pointer could not show the same rich communication information as hand gesture cues [14] and the hand gesture still could not reach to the distant objects. Similar to using a pointer, eye gaze also has been studied for indicating a distant object when a hand gesture cue is also available [15] [16], but eye gaze does also not show rich communication information like a hand gesture even if it was faster than hand gesture to indicate object.…”