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33
PACER: fine-grained interactive paper via camera-touch hybrid gestures on a cell phone
- In Proc. CHI ’10, ACM(2010
"... PACER is a gesture-based interactive paper system that supports fine-grained paper document content manipulation through the touch screen of a cameraphone. Using the phone’s camera, PACER links a paper document to its digital version based on visual features. It adopts camerabased phone motion detec ..."
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PACER is a gesture-based interactive paper system that supports fine-grained paper document content manipulation through the touch screen of a cameraphone. Using the phone’s camera, PACER links a paper document to its digital version based on visual features. It adopts camerabased phone motion detection for embodied gestures (e.g. marquees, underlines and lassos), with which users can flexibly select and interact with document details (e.g. individual words, symbols and pixels). The touch input is incorporated to facilitate target selection at fine granularity, and to address some limitations of the embodied interaction, such as hand jitter and low input sampling rate. This hybrid interaction is coupled with other techniques such as semi-real time document tracking and loose physical-digital document registration, offering a gesturebased command system. We demonstrate the use of PACER in various scenarios including work-related reading, maps and music score playing. A preliminary user study on the design has produced encouraging user feedback, and suggested future research for better understanding of embodied vs. touch interaction and one vs. two handed interaction.
1 Measuring Presence: The Temple Presence Inventory
"... This paper describes the development and testing of the Temple Presence Inventory. The TPI questionnaire is a multidimensional, literature-based measure of telepresence that has demonstrated sensitivity to media form and content in studies discussed here. 1. ..."
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This paper describes the development and testing of the Temple Presence Inventory. The TPI questionnaire is a multidimensional, literature-based measure of telepresence that has demonstrated sensitivity to media form and content in studies discussed here. 1.
Evaluation of an off-screen visualization for magic lens and dynamic peephole interfaces
- In Proc. MobileHCI
, 2010
"... Map navigation is often limited due to the inherent size re-strictions of mobile devices ’ displays. Using a magic lens to interact with physical objects has been proposed as a way to reduce this limitation. The dynamic peephole interface is an alternative approach where a device is moved across a v ..."
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Map navigation is often limited due to the inherent size re-strictions of mobile devices ’ displays. Using a magic lens to interact with physical objects has been proposed as a way to reduce this limitation. The dynamic peephole interface is an alternative approach where a device is moved across a virtual surface. In this paper we study the effect of an additional visualization of objects beyond the screen on magic lens and dynamic peephole interfaces. In the conducted experiment the participants had to select points of interest shown on a map. We show that an additional visualization of off-screen objects decreases the task completion time and reduces the perceived task load. The advantage of an off-screen visual-ization is much higher than the difference between using a magic lens instead of a dynamic peephole interface.
Embedded media markers: marks on paper that signify associated media
- In Proceeding of the 14th international Conference on intelligent User interfaces (Hong Kong, China, February 07 - 10, 2010). IUI '10. ACM
, 2010
"... Embedded Media Markers, or simply EMMs, are nearly transparent iconic marks printed on paper documents that signify the existence of media associated with that part of the document. EMMs also guide users ’ camera operations for media retrieval. Users take a picture of an EMMsignified document patch ..."
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Embedded Media Markers, or simply EMMs, are nearly transparent iconic marks printed on paper documents that signify the existence of media associated with that part of the document. EMMs also guide users ’ camera operations for media retrieval. Users take a picture of an EMMsignified document patch using a cell phone, and the media associated with the EMM-signified document location is displayed on the phone. Unlike bar codes, EMMs are nearly transparent and thus do not interfere with the document contents. Retrieval of media associated with an EMM is based on image local features of the captured EMMsignified document patch. This paper describes a technique for semi-automatically placing an EMM at a location in a document, in such a way that it encompasses sufficient identification features with minimal disturbance to the original document. Author Keywords
Playing it Real: Magic Lens and Static Peephole Interfaces for Games in a Public Space
- Proceedings of MobileHCI
, 2012
"... Magic lens and static peephole interfaces are used in numerous consumer mobile phone applications such as Augmented Reality browsers, games or digital map applications in a variety of contexts including public spaces. Interface performance has been evaluated for various interaction tasks involving s ..."
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Cited by 4 (3 self)
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Magic lens and static peephole interfaces are used in numerous consumer mobile phone applications such as Augmented Reality browsers, games or digital map applications in a variety of contexts including public spaces. Interface performance has been evaluated for various interaction tasks involving spatial relationships in a scene. However, interface usage outside laboratory conditions has not been considered in depth in the evaluation of these interfaces. We present findings about the usage of magic lens and static peephole interfaces for playing a find-and-select game in a public space and report on the reactions of the public audience to participants ‟ interactions. Contrary to our expectations participants favored the magic lens over a static peephole interface despite tracking errors, fatigue and potentially conspicuous gestures. Most passersby did not pay attention to the participants and vice versa. A comparative laboratory experiment revealed only few differences in system usage.
Who’s that girl? handheld augmented reality for printed photobooks
- In Proc. Interact
, 2011
"... All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately. ..."
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Cited by 3 (2 self)
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All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.
Foldable Augmented Maps
- In Proc. ISMAR
, 2010
"... This paper presents folded surface detection and tracking for aug-mented maps. For the detection, plane detection is iteratively ap-plied to 2D correspondences between an input image and a ref-erence plane because the folded surface is composed of multiple planes. In order to compute the exact foldi ..."
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This paper presents folded surface detection and tracking for aug-mented maps. For the detection, plane detection is iteratively ap-plied to 2D correspondences between an input image and a ref-erence plane because the folded surface is composed of multiple planes. In order to compute the exact folding line from the detected planes, the intersection line of the planes is computed from their positional relationship. After the detection is done, each plane is individually tracked by frame-by-frame descriptor update. For a natural augmentation on the folded surface, we overlay virtual geo-graphic data on each detected plane. The user can interact with the geographic data by finger pointing because the finger tip of the user is also detected during the tracking. As scenario of use, some inter-actions on the folded surface are introduced. Experimental results show the accuracy and performance of folded surface detection for evaluating the effectiveness of our approach.
Embedded Media Barcode Links: Optimally Blended Barcode Overlay on Paper for Linking to Associated Media
"... Embedded Media Barcode Links, or simply EMBLs, are optimally blended iconic barcode marks, printed on paper documents, that signify the existence of multimedia associated with that part of the document content (Figure 1). EMBLs are used for multimedia retrieval with a camera phone. Users take a pict ..."
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Embedded Media Barcode Links, or simply EMBLs, are optimally blended iconic barcode marks, printed on paper documents, that signify the existence of multimedia associated with that part of the document content (Figure 1). EMBLs are used for multimedia retrieval with a camera phone. Users take a picture of an EMBL-signified document patch using a cell phone, and the multimedia associated with the EMBL-signified document location is displayed on the phone. Unlike a traditional barcode which requires an exclusive space, the EMBL construction algorithm acts as an agent to negotiate with a barcode reader for maximum user and document benefits. Because of this negotiation, EMBLs are optimally blended with content and thus have less interference with the original document layout and can be moved closer to a media associated location. Retrieval of media associated with an EMBL is based on the barcode identification of a captured EMBL. Therefore, EMBL retains nearly all barcode identification advantages, such as accuracy, speed, and scalability. Moreover, EMBL takes advantage of users' knowledge of a traditional barcode. Unlike Embedded Media Maker (EMM) which requires underlying document features for marker identification, EMBL has no requirement for the underlying features. This paper will discuss the procedures for EMBL construction and optimization. It will also give experimental results that strongly support the EMBL construction and optimization ideas.
Comparative evaluation of interfaces for presenting location-based information on mobile devices
- In Digital Libraries: For Cultural Heritage, Knowledge Dissemination, and Future Creation
, 2011
"... Comparative evaluation of interfaces for presenting location-based information on mobile devices. Lecture ..."
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Comparative evaluation of interfaces for presenting location-based information on mobile devices. Lecture
A.P.: Towards a service framework for remote sales support via augmented reality
- In: International Workshop on User-Focused Service Engineering, Consumption and Aggregation (USECA
, 2011
"... This is the author’s version of a work that was submitted/accepted for pub-lication in the following source: ..."
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This is the author’s version of a work that was submitted/accepted for pub-lication in the following source:
