Spatial Preposition Use in Indoor Scene Descriptions

Doore, Stacy A.; Beard, Kate; Giudice, Nicholas A.

doi:10.21433/b3115h00g1xs

Cited by 2 publications

(1 citation statement)

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“…For example, Walton and Worboys proposed a dynamic indoor model based on Millner's dual graph theory [27], which has a significant advantage in dealing with the impact of events on the indoor environment [28]. Doore et al used descriptive spatial prepositions based on linguistics, machine learning, and cluster analysis to create a rich and detailed VE scene to help people understand the indoor environment [29]. Afyouni et al created an interior space model with indoor path continuous search function for moving objects that can be extended to multi-user service [30].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Spatial Data Model for Indoor Space: Combined Topology and Grid

Zhang

et al. 2017

IJGI

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Abstract:The construction and application of an indoor spatial data model is an important prerequisite to meet the requirements of diversified indoor spatial location services. The traditional indoor spatial topology model focuses on the construction of topology information. It has high path analysis and query efficiency, but ignores the spatial location information. The grid model retains the plane position information by grid, but increases the data volume and complexity of the model and reduces the efficiency of the model analysis. This paper presents a hybrid model for interior space based on topology and grid. Based on the spatial meshing and spatial division of the interior space, the model retains the position information and topological connectivity information of the interior space by establishing the connection or affiliation between the grid subspace and the topological subspace. The model improves the speed of interior spatial analysis and solves the problem of the topology information and location information updates not being synchronized. In this study, the A* shortest path query efficiency of typical daily indoor activities under the grid model and the hybrid model were compared for the indoor plane of an apartment and a shopping mall. The results obtained show that the hybrid model is 43% higher than the A* algorithm of the grid model as a result of the existence of topology communication information. This paper provides a useful idea for the establishment of a highly efficient and highly available interior spatial data model.

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Section: Introductionmentioning

confidence: 99%

Hybrid Spatial Data Model for Indoor Space: Combined Topology and Grid

Zhang

et al. 2017

IJGI

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Creating Accessible Online Floor Plans for Visually Impaired Readers

Madugalla

Marriott

Marinai

et al. 2020

ACM Trans. Access. Comput.

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We present a generic model for providing blind and severely vision-impaired readers with access to online information graphics. The model supports fully and semi-automatic transcription and allows the reader a choice of presentation mediums. We evaluate the model through a case study: online house floor plans. To do so, we conducted a formative user study with severely vision impaired users to determine what information they would like from an online floor plan and how to present the floor plan as a text-only description, tactile graphic, and on a touchscreen with audio feedback. We then built an automatic transcription tool using specialized graphics recognition algorithms. Finally, we measured the quality of system recognition as well as conducted a second user study to evaluate the usefulness of the accessible graphics produced by the tool for each of the three formats. The results generally support the design of the generic model and the usefulness of the tool we have produced. However, they also reveal the inability of current graphics recognition algorithms to handle unforeseen graphical conventions. This highlights the need for automatic transcription systems to return a level of confidence in the recognized components and to present this to the end-user so they can have an appropriate level of trust.

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Spatial Preposition Use in Indoor Scene Descriptions

Cited by 2 publications

References 5 publications

Hybrid Spatial Data Model for Indoor Space: Combined Topology and Grid

Hybrid Spatial Data Model for Indoor Space: Combined Topology and Grid

Creating Accessible Online Floor Plans for Visually Impaired Readers

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