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Direct Interaction with Large-Scale Display Systems using Infrared Laser Tracking Devices
, 2003
"... Existing large scale display systems generally adopt an indirect approach to user interaction. This is due to the use of standard desktop-oriented devices, such as a mouse on a desk, to control the large wall-sized display. By using an infrared laser pointer and an infrared tracking device, a more d ..."
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Cited by 23 (0 self)
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Existing large scale display systems generally adopt an indirect approach to user interaction. This is due to the use of standard desktop-oriented devices, such as a mouse on a desk, to control the large wall-sized display. By using an infrared laser pointer and an infrared tracking device, a more direct interaction with the large display can be achieved, thereby reducing the cognitive load of the user and improving their mobility. The challenge in designing such systems is to allow users to interact with objects on the display naturally and easily. Our system addresses this with hotspots, regions surrounding objects of interest, and gestures, movements made with the laser pointer which triggers an action, similar to those found in modern web browsers (e.g. Mozilla and Opera). Finally, these concepts are demonstrated by an add-in module for Microsoft PowerPoint using the NaturalPoint^TM Smart-Nav^TM tracking device.
Spatial control of interactive surfaces in an augmented environment
- of Lecture Notes in Computer Science
, 2004
"... Abstract. New display technologies will enable designers to use every surface as a support for interaction with information technology. In this article, we describe techniques and tools for enabling efficient man-machine interaction in computer augmented multi-surface environments. We focus on expli ..."
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Cited by 16 (6 self)
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Abstract. New display technologies will enable designers to use every surface as a support for interaction with information technology. In this article, we describe techniques and tools for enabling efficient man-machine interaction in computer augmented multi-surface environments. We focus on explicit interaction, in which the user decides when and where to interact with the system. We present three interaction techniques using simple actuators: fingers, a laser pointer, and a rectangular piece of cardboard. We describe a graphical control interface constructed from an automatically generated and maintained environment model. We implement both the automatic model acquisition and the interaction techniques using a Steerable Camera-Projector (SCP) system. 1
PicoTales: collaborative authoring of animated stories using handheld projectors
- Proceedings of CSCW'12. ACM
, 2012
"... In this article we describe a novel approach to collaborative video authoring using handheld projectors. PicoTales are created by sketching story elements on a projector+phone prototype, and then animated by moving the projected image. Movements are captured using motion sensor data, rather than vis ..."
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Cited by 6 (1 self)
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In this article we describe a novel approach to collaborative video authoring using handheld projectors. PicoTales are created by sketching story elements on a projector+phone prototype, and then animated by moving the projected image. Movements are captured using motion sensor data, rather than visual or other tracking methods, allowing interaction and story creation anywhere. We describe in detail the design and development of our prototype device, and also address issues in position estimation and element tracking. An experiment was conducted to evaluate the prototype, demonstrating its accuracy and usability for ad-hoc creation of story videos. The potential of the system for story authoring is shown via a further experiment looking at the quality of the animated story videos produced. We conclude by considering possible future developments of the concept, and highlighting the benefits of our design for collaborative story capture. Author Keywords Mobile projection, story authoring, collaboration.
Vision Based Laser Pointer Interaction for Flexible Screens
"... Abstract. In recent years high quality interaction devices have become very popular in our environment. The industries are also currently undergoing rapid ..."
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Abstract. In recent years high quality interaction devices have become very popular in our environment. The industries are also currently undergoing rapid
PointerPhone: Using Mobile Phones for Direct Pointing Interactions with Remote Displays
"... Abstract. Large screens or projections in public and private settings have become part of our daily lives, as they enable the collaboration and presentation of information in many diverse ways. When discussing the shown information with other persons, we often point to a displayed object with our in ..."
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Abstract. Large screens or projections in public and private settings have become part of our daily lives, as they enable the collaboration and presentation of information in many diverse ways. When discussing the shown information with other persons, we often point to a displayed object with our index finger or a laser pointer in order to talk about it. Although mobile phone-based interactions with remote screens have been investigated intensively in the last decade, none of them considered such direct pointing interactions for application in everyday tasks. In this paper, we present the concept and design space of Pointer-Phone which enables users to directly point at objects on a remote screen with their mobile phone and interact with them in a natural and seamless way. We detail the design space and distinguish three categories of interactions including low-level interactions using the mobile phone as a precise and fast pointing device, as well as an input and output device. We detail the category of widgetlevel interactions. Further, we demonstrate versatile high-level interaction techniques and show their application in a collaborative presentation scenario. Based on the results of a qualitative study, we provide design implications for application designs.
A Human-Assisted Approach for a Mobile Robot to Learn 3D Object Models using Active Vision
"... Abstract — In this paper we present an algorithm that allows a human to naturally and easily teach a mobile robot how to recognize objects in its environment. The human selects the object by pointing at it using a laser pointer. The robot recognizes the laser reflections with its cameras and uses th ..."
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Abstract — In this paper we present an algorithm that allows a human to naturally and easily teach a mobile robot how to recognize objects in its environment. The human selects the object by pointing at it using a laser pointer. The robot recognizes the laser reflections with its cameras and uses this data to generate an initial 2D segmentation of the object. The 3D position of SURF feature points are extracted from the designated area using stereo vision. As the robot moves around the object, new views of the object are obtained from which feature points are extracted. These features are filtered using active vision. The complete object representation consists of feature points registered with 3D pose data. We describe the method and show that it works well by performing experiments on real world data collected with our robot. We use an extensive dataset of 21 objects, differing in size, shape and texture. I.
First International Conference on Advances in Computer-Human Interaction NALP:Navigating Assistant for Large Display Presentation using Laser
"... In this paper, we present NALP (Navigating Assistant using Laser Pointer), a novel interaction technique for large display presentation control. NALP is based on laser dot detection, track recognition and space segmentation, allowing users to manipulate the presentation software (such as PowerPoint ..."
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In this paper, we present NALP (Navigating Assistant using Laser Pointer), a novel interaction technique for large display presentation control. NALP is based on laser dot detection, track recognition and space segmentation, allowing users to manipulate the presentation software (such as PowerPoint TM) directly and freely using any kind of common laser pointer. Demanding users only to sweep the pointer to and fro on display, this technique to a large extent solved the problems caused by hand jitter, latency and detection errors existing in other navigation assistant systems. Report on evaluation experiments shows that when delivering an electronic and interactive presentation with large displays, NALP can effectively meet the need and is preferred over other laser pointer interactive methods. 1.
Leveraging Graphics Hardware for Vision Based Human Computer Interaction
, 2005
"... We present a system which allows users to draw on arbitrary display surfaces. The system is implemented using consumer electronics; data is gathered with a webcam, and most video analysis is done on a desktop graphics card. Two variants of the core system are discussed. In the first, users draw on a ..."
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We present a system which allows users to draw on arbitrary display surfaces. The system is implemented using consumer electronics; data is gathered with a webcam, and most video analysis is done on a desktop graphics card. Two variants of the core system are discussed. In the first, users draw on a computer monitor using a laser pointer. In the second, a light pen is used to draw on a display surface created by back-projecting onto a plexiglass plate. The laser pointer system presents a more challenging data filtering problem. These challenges may be addressed through additional processing, though the results from the back-projection system remain superior.
