WEBSITE https://sites.google.com/site/percarworkshop2016/home GOAL The crux of this workshop is the creation of a better understanding of the various perceptual and cognitive issues that inform and constrain the design of effective augmented reality systems. There is neither an in-depth overview of these factors, nor well-founded knowledge on most effects as gained through formal validation. In particular long-term usage effects are inadequately understood. However, mobile platforms and emerging headworn display hardware (“glasses”) ignite the number of users, as well as the system usage duration. To fulfill usability needs, a thorough understanding of perceptual and intertwined cognitive factors is highly needed by both research and industry: issues such as depth misinterpretation, object relationship mismatches and information overload can severely limit usability of AR applications, or even pose risks on its usage. Based on the gained knowledge, for example new interactive visualization and view management techniques can be iteratively defined, developed and validated, optimized to be congruent with human capabilities and limitations en route to more usable AR application interaces. TOPICS AND SUBMISSION We expect researchers to submit early work, such as initial analyses of user studies or experimental visualization techniques, although position papers that comprise several pages and summarize a range of previous experiments or experiences (survey) also fall inside the scope of the workshop. Papers should be between 4 and 6 pages in length and may cover one or more of the following topics:

• Depth perception in AR
• Color perception issues
• Visual search / information processing
• Situational awareness
• Selective, focused or divided attention
• Just noticeable differences, signal thresholds, and biases
• Individual differences in perception & cognition
• Comparisons between AR and VR perceptual issues
• Cognitive load, mental workload or other cognitive issues related to perception
• Multisensory issues (sensation, perception & cognition in non-visual AR)
• Visualization techniques addressing perceptual or cognitive issues
• View management techniques
• Novel visual display devices that target specific perceptual issues
• Validation methodologies, benchmarks and measurement methods, including eye tracking
• Novel capturing and processing techniques (like HDR) that address perceptual issues
• Techniques for conducting longitudinal studies

SPECIAL FEATURE As a special feature this year, we will invite the best papers to submit extended versions to a PRESENCE special issue on perceptual and cognitive issues in AR. Dr. Gabbard is an associate editor of PRESENCE, and is working with workshop authors and PRESENCE editorial board to formalize the PERCAR special issue submission process and timeline. Currently, we anticipate a mix of invited and open submissions and a publication date in Fall 2016. Submitted papers will be evaluated through a double blind reviewing process of the submissions by the PC committee members. Accepted papers will be listed in the IEEE Digital Library. All papers need to follow the IEEE DL format – see http://www.cs.sfu.ca/~vis/Tasks/camera.html Blind submissions should be made through the Easychair system: link will come soon. DEADLINES Abstract submission deadline: open till paper deadline (February 2) Paper submission deadline: February 2, 2015 Notification of acceptance: February 15, 2015 Camera-ready: February 29, 2015 ORGANIZERS Joseph L. Gabbard, VirginiaTech Kiyoshi Kiyokawa, Osaka University Ernst Kruijff, Bonn-Rhein-Sieg University of Applied Sciences PROGRAMM COMMITTEE (in preparation) Steven K. Feiner, Columbia University Victoria Interrante, University of Minnesota J. Adam Jones. University of Mississippi Hirokazu Kato, Nara Institute of Science and Technology Gerry Kim, POSTECH