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Many work environments can benefit from integrated computing devices to provide information to users, record users’ actions, and prompt users about the next steps to take in a procedure. We focus on the cell biology laboratory, where previous work on the Labscape project has provided a framework to organize experiment plans and store data. Currently developed sensor systems allow amount and type of...
Increasingly, cell phones are used to browse for information while location systems assist in gathering information that is most appropriate to the user’s current location. We seek to take this one step further and actually overlay information on to the physical world using the cell phone’s camera and thereby minimize a user’s cognitive effort. This “magic lens” approach has many applications of which...
Computer vision techniques can enhance landmark-based navigation by better utilizing online photo collections. We use spatial reasoning to compute camera poses, which are then registered to the world using GPS information extracted from the image tags. Computed camera pose is used to augment the images with navigational arrows that fit the environment. We develop a system to use high-level reasoning...
We present a method for automatically constructing compact, photo-realistic architectural 3D models. This method uses simple 3D building outlines obtained from existing GIS databases to bootstrap reconstruction and works with both structured and unstructured image datasets. We propose an optimal view-selection algorithm for selecting a small set of views for texture mapping that best describe the...
Individuals with cognitive impairments are often prevented from independently living, working, and fully participating in their community due to wayfinding concerns. We conducted two user studies of a mobile wayfinding aid designed to support such individuals. The first study examined usability issues related to wayfinding outdoors. The results were positive overall, but showed that the directions...
We studied an indoor wayfinding application for individuals with cognitive impairments using Wizard-of-Oz techniques. This gave us insights into the technological considerations for the location system underlying such an application. We have abstracted these into generally desirable properties for location-aware systems for wayfinding. In addition to general requirements for accuracy and robustness,...
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