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The creation of interactive visualization to analyze text documents has gained an impressive momentum in recent years. This is not surprising in the light of massive and still increasing amounts of available digitized texts. Websites, social media, news wire, and digital libraries are just few examples of the diverse text sources whose visual analysis and exploration offers new opportunities to effectively...
We present a design space exploration of interaction techniques for supporting multiple collaborators exploring data on a shared large display. Our proposed solution is based on users controlling individual lenses using both explicit gestures as well as proxemics: the spatial relations between people and physical artifacts such as their distance, orientation, and movement. We discuss different design...
This paper addresses the problem of building and maintaining image repositories which form the basis for world-scale visual models. The availability of these models enable capabilities such as visual localization, persistent surveillance, and structure from motion. We approach this problem through the creation of PeerAppear, a location-aware framework for extensible image annotation and peer-to-peer...
Technology such as GPS equipped smart phones and voice commands have opened up navigation for users who are blind. However performing activities that others take for granted, such as crossing the street, is still an intense experience. Not all crosswalks are marked, drivers may not be paying attention, and noisy city environments may prevent any types of sonic feedback from being understood. This...
Navigation is a fundamental problem that relates to localization and positioning for a humanoid robot Nao. Odometry is the one of many techniques that able to solve it. Nao humanoid robot actually doesn't have an odometry module by itself, and odometry sensors that currently available on it and can be used is only IMU module. An odometry sensor that quite interesting in recent times, usually for fusioning...
One of the problems regarding graphics for blind individual is that we have few data on how he (she) acquires graphical information through touching. In this article, we propose a method of tracking the touch point of his (her) fingertip on graphics material using cameras (an analog of eye-tracking) for analyzing the image acquisition process. We exhibit the method on an edge-outlined tactile picture...
With the recent increase of interest concerning multi-spectral systems, limitations of classic stereo setups have been overcome to tackle complex navigation problems such as night-time navigation or collision avoidance. However, multi-spectral stereo matching still remains a challenging issue as similarity between stereo pairs is reduced. In this work, we address the problem of visual navigation for...
This paper presents automated navigation control of an Unmanned Aerial Vehicle (UAV) based on visual data gathered by onboard camera. With depletion of easy resources and health, safety and environmental (HSE) challenges in exploiting newly found resources in hostile conditions are forcing oil and gas companies to look for robotic solutions for their problems. Pipelines carrying inflammable and toxic...
In this paper we demonstrate how to extend an indoor personal navigation system based upon fusing pedestrian dead reckoning data and WiFi fingerprints by using simple, unobtrusive visual landmarks perceived by the user's smartphone camera. The proposed navigation system employs a factor graph to represent the localization constraints stemming from measurements obtained using the sensors available...
Military combat divers conduct underwater navigation missions in conditions with extremely poor visibility. Critical to the success of these missions is accurate underwater navigation, as well as staying within closed circuit oxygen rebreather depth limits. Unfortunately, handheld or tactical board mounted compasses, depth gauges, and chronometers can become virtually useless in the zero visibility...
Navigating information spaces is a fundamental yet challenging task for software developers. For example, one study found that programmers spend 35% of their time on the mechanics of navigating [7]. In another study, programmers spent 38–71% of their time foraging for information during debugging tasks [9]. This is further complicated by programmers' rapidly changing information goals [9] and mental...
The design of programming tools is slow and costly. To ease this process, we developed a design pattern catalog aimed at providing guidance for tool designers. This catalog is grounded in Information Foraging Theory (IFT), which empirical studies have shown to be useful for understanding how developers look for information during development tasks. New design patterns, authored by members of the research...
Spreadsheets are a successful example of an end-programming language, and the spreadsheet paradigm shares several characteristics like composition, selection, and repetition with programming languages. There are compelling reasons that spreadsheets are code. For most programming languages, developers are supported by powerful IDEs. However, spreadsheets are missing such an IDE. In our current work...
As a new type of computer input device, touch screen provides a simple and natural human-computer interaction. But because the area of finger tapping the screen is larger, the touch screen is more likely lead to faulty operation than mouse. To solve this problem, this study selects the touch screen interface structures as the study object, combines with the application types, and explores the reasonable...
This study introduces an efficient visual simultaneous localization and mapping (SLAM) algorithm that can be applied to autonomous inspection of underwater structures, such as ship hulls, dams, and marine structures. Considering that visual features on the surface of typical underwater structures are not uniformly distributed, the proposed visual SLAM algorithm includes an intra-image analysis scheme...
Brain-computer interfaces have been extensively studied and used in order to aid patients suffering from neuromuscular diseases to communicate and control the surrounding environment. Steady-state visual evoked potentials (SSVEP) constitute a very popular BCI stimulation protocol, due to their efficiency and quick response time. In this study, we developed a SSVEP-based BCI along with a low-cost custom...
As humans and robots collaborate together on spatial tasks, they must communicate clearly about the objects they are referencing. Communication is clearer when language is unambiguous which implies the use of spatial references and explicit perspectives. In this work, we contribute two studies to understand how people instruct a partner to identify and pick up objects on a table. We investigate spatial...
The conventional intervention for chronic total occlusion (CTO) of the coronary artery has crucial challenges for its successful outcome; surgeons should understand the vascular anatomy and the instrument location, solely depending on two-dimensional (2D) X-ray images. Excessive doses of both X-ray radiation and the contrast agent from continuous fluoroscopy are also critical limitations in clinical...
Older adults need more time, more training and specialized user interfaces for handling gadgets and devices. The challenges faced by the older adults' maybe inability to understand the text, visual cues and help or getting overwhelmed by the challenge of handling something new. Lot of literature is available for addressing the usability of user interfaces being used by older adults. This paper describes...
This study focused on driver behavior by inferring it from driving recorder data. We refer to this inference function as meta-cognition. Using this meta-cognition, we attempt to determine the characteristics of driver behavior on the highway. By comparing ACTR simulation results and recorder data, we investigated the driver cognitive process in highway driving in response to lane keeping, curve negotiation,...
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