@article{tabrizian_baran_van berkel_mitasova_meentemeyer_2020, title={Modeling restorative potential of urban environments by coupling viewscape analysis of lidar data with experiments in immersive virtual environments}, volume={195}, ISSN={["1872-6062"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85076054188&partnerID=MN8TOARS}, DOI={10.1016/j.landurbplan.2019.103704}, abstractNote={• We propose an approach for modeling experiential qualities of urban landscape. • We use lidar data to generate detailed model of landscape structure and patterns. • We combine GIS analysis of viewscapes with survey of immersive virtual environment. • We identify spatial metrics that predict urban landscape's restorative potential (RP). • We develop a predictive map of RP that can support decision-making and urban design.}, journal={LANDSCAPE AND URBAN PLANNING}, author={Tabrizian, Payam and Baran, Perver K. and Van Berkel, Derek and Mitasova, Helena and Meentemeyer, Ross}, year={2020}, month={Mar} }
 @article{baran_tabrizian_zhai_smith_floyd_2018, title={An exploratory study of perceived safety in a neighborhood park using immersive virtual environments}, volume={35}, ISSN={1618-8667}, url={http://dx.doi.org/10.1016/j.ufug.2018.08.009}, DOI={10.1016/j.ufug.2018.08.009}, abstractNote={Spatial configuration and physical characteristics of landscape features can strongly influence perceptions of fear and danger. This study examined how situational characteristics, particularly spatial enclosure shaped by surrounding vegetation, are related to perception of safety in a park setting. Study stimuli involved eight 360° immersive virtual environments (IVE) representing low, medium, and high spatial enclosure situations based on the degree of visual and locomotive permeability shaped by the physical arrangement of vegetation. Forty-eight students experienced the IVEs wearing a head mounted display device and then indicated on a 5-point scale how safe they would feel walking alone in that location during the day. Immediately after rating each IVE, participants indicated the main reasons they would feel either safe or unsafe in that particular location. Analysis results indicated that subjects perceived high enclosure environments as significantly less safe than medium and low enclosure environments. In addition to enclosure formed by vegetation, attributes that contributed to perception of safety were presence of non-threatening people and paths. Results indicated that gender differences in perceived safety were significant for the high and medium enclosed environments only. Study findings would allow urban planners and park managers to better understand how the spatial characteristics of existing or planned urban greenspace are likely to influence perceived safety and consequently use patterns and the attainment of social and psychological benefits provided by urban parks. Such an understanding can help generate evidence-based guidelines for improving safety while preserving desired aesthetic and ecological properties of the landscape.}, journal={Urban Forestry & Urban Greening}, publisher={Elsevier BV}, author={Baran, Perver K. and Tabrizian, Payam and Zhai, Yujia and Smith, Jordan W. and Floyd, Myron F.}, year={2018}, month={Oct}, pages={72–81} }
 @article{tabrizian_baran_smith_meentemeyer_2018, title={Exploring perceived restoration potential of urban green enclosure through immersive virtual environments}, volume={55}, ISSN={["1522-9610"]}, DOI={10.1016/j.jenvp.2018.01.001}, abstractNote={We examine the effects of green space enclosure on perceived restorativeness and perceived safety in two urban setting, and in turn, we explore the extent to which perceived safety mediates the casual pathways between enclosure and perceived restorativeness. Photorealistic 360o panoramas taken from a plaza and a park were digitally manipulated to create 18 immersive virtual environment (IVE) stimuli that depict variations of spatial arrangement and permeability of vegetation. Using a head-mounted display, 87 participants viewed the IVEs and rated each on perceived restorativeness and perceived safety. Anova results revealed a significant interaction between enclosure indicators and setting type. Spatial arrangement positively affected perceived restorativeness in urban plaza while in park setting, spatial arrangement and permeability inversely influenced both perceived restorativeness and safety. Perception of safety mediated the causal pathways between enclosure and perceived restorativeness with more pronounced effects in park setting.}, journal={JOURNAL OF ENVIRONMENTAL PSYCHOLOGY}, author={Tabrizian, Payam and Baran, Perver K. and Smith, William R. and Meentemeyer, Ross K.}, year={2018}, month={Feb}, pages={99–109} }
 @article{van berkel_tabrizian_dorning_smart_newcomb_mehaffey_neale_meentemeyer_2018, title={Quantifying the visual-sensory landscape qualities that contribute to cultural ecosystem services using social media and LiDAR}, volume={31}, ISSN={["2212-0416"]}, url={http://dx.doi.org/10.1016/j.ecoser.2018.03.022}, DOI={10.1016/j.ecoser.2018.03.022}, abstractNote={Landscapes are increasingly recognized for providing valuable cultural ecosystem services with numerous non-material benefits by serving as places of rest, relaxation, and inspiration that ultimately improve overall mental health and physical well-being. Maintaining and enhancing these valuable benefits through targeted management and conservation measures requires understanding the spatial and temporal determinants of perceived landscape values. Content contributed through mobile technologies and the web are emerging globally, providing a promising data source for localizing and assessing these landscape benefits. These georeferenced data offer rich in situ qualitative information through photos and comments that capture valued and special locations across large geographic areas. We present a novel method for mapping and modeling landscape values and perceptions that leverages viewshed analysis of georeferenced social media data. Using a high resolution LiDAR (Light Detection and Ranging) derived digital surface model, we are able to evaluate landscape characteristics associated with the visual-sensory qualities of outdoor recreationalists. Our results show the importance of historical monuments and attractions in addition to specific environmental features which are appreciated by the public. Evaluation of photo-image content highlights the opportunity of including temporally and spatially variable visual-sensory qualities in cultural ecosystem services (CES) evaluation like the sights, sounds and smells of wildlife and weather phenomena.}, journal={ECOSYSTEM SERVICES}, author={Van Berkel, Derek B. and Tabrizian, Payam and Dorning, Monica A. and Smart, Lindsey and Newcomb, Doug and Mehaffey, Megan and Neale, Anne and Meentemeyer, Ross K.}, year={2018}, month={Jun}, pages={326–335} }
 @article{tabrizian_petrasova_harmon_petras_mitasova_meentemeyer_2016, title={Immersive Tangible Geospatial Modeling}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85011015621&partnerID=MN8TOARS}, DOI={10.1145/2996913.2996950}, abstractNote={Tangible Landscape is a tangible interface for geographic information systems (GIS). It interactively couples physical and digital models of a landscape so that users can intuitively explore, model, and analyze geospatial data in a collaborative environment. Conceptually Tangible Landscape lets users hold a GIS in their hands so that they can feel the shape of the topography, naturally sculpt new landforms, and interact with simulations like water flow. Since it only affords a bird's-eye view of the landscape, we coupled it with an immersive virtual environment so that users can virtually walk around the modeled landscape and visualize it at a human-scale. Now as users shape topography, draw trees, define viewpoints, or route a walkthrough, they can see the results on the projection-augmented model, rendered on a display, or rendered on a head-mounted display. In this paper we present the Tangible Landscape Immersive Extension, describe its physical setup and software architecture, and demonstrate its features with a case study.}, journal={24TH ACM SIGSPATIAL INTERNATIONAL CONFERENCE ON ADVANCES IN GEOGRAPHIC INFORMATION SYSTEMS (ACM SIGSPATIAL GIS 2016)}, author={Tabrizian, Payam and Petrasova, Anna and Harmon, Brendan and Petras, Vaclav and Mitasova, Helena and Meentemeyer, Ross}, year={2016} }