Lumipoint: multi-user laser-based interaction on large tiled displays

Davis, James; Xing, Chen

doi:10.1016/s0141-9382(02)00039-2

Cited by 73 publications

(52 citation statements)

References 16 publications

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“…In [9], others use a combination of motion detection, shape recognition and histograms comparison methods in order to detect the laser spot. In the same context, segmentation process appears in most of works such as [10][11][12][13][14][15]. In fact, thresholding permits to classify the laser spot according to brightness value using a previously calculated threshold value.…”

Section: Related Workmentioning

confidence: 99%

Hardware Implementation and Validation of 3D Underwater Shape Reconstruction Algorithm Using a Stereo-Catadioptric System

et al. 2016

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Abstract:In this paper, we present a new stereo vision-based system and its efficient hardware implementation for real-time underwater environments exploration throughout 3D sparse reconstruction based on a number of feature points. The proposed underwater 3D shape reconstruction algorithm details are presented. The main concepts and advantages are discussed and comparison with existing systems is performed. In order to achieve real-time video constraints, a hardware implementation of the algorithm is performed using Xilinx System Generator. The pipelined stereo vision system has been implemented using Field Programmable Gate Arrays (FPGA) technology. Both timing constraints and mathematical operations precision have been evaluated in order to validate the proposed hardware implementation of our system. Experimental results show that the proposed system presents high accuracy and execution time performances.

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Section: Related Workmentioning

confidence: 99%

Hardware Implementation and Validation of 3D Underwater Shape Reconstruction Algorithm Using a Stereo-Catadioptric System

et al. 2016

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“…Cavens [7] used a similar technique to control a computer program on a large screen including a button in the laser pointer to simulate the mouse click. On the other hand, the works presented in [23,26,28,10] use a similar technique, however in this case their system looks for several lasers spots on the screen. This technique is known as collaborative support , by means of this, a computer can be controlled by several people simultaneously.…”

Section: Previous Workmentioning

confidence: 99%

An independent and non-intrusive laser pointer environment control device system

Chávez

Vega

Olague³

et al. 2008

Proceedings of the 5th International Conference on Pervasive Services

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In this paper we present a system developed to control a computer environment for the handicapped by means of a laser pointer. The system looks for a laser spot position which is projected on the environment by using a laser pointer. Handicapped people can thus select the device they want by using the laser pointer. Once the laser spot is found, the device is controlled by means of a domotic system, using KNX architecture. We have developed a system that is able to recognize and act on the device that the handicapped person wants to use.

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“…In this case it is the VirtualWebWall which is identified by the key "+436991001010". As the command attribute of the request specifies that a "new" instance of a service class note should be created, the appropriate public (6). Assumed that this is the first request to the WebWall Backend, the initial value of RNum is "0001" (6.1).…”

Section: Fig 5 Sms To Webwall 436991001010mentioning

confidence: 99%

“…Using the Stanford Interactive Mural, Davis and Chen [6] present new input methods for people collaborating one this shared display area. They use laser-pointers as input devices and are able to discriminate between several simlutanouos input gestures to enable a natural interaction.…”

Section: Related Workmentioning

confidence: 99%

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Pervasive Web Access via Public Communication Walls

Ferscha

Vogl

2002

Lecture Notes in Computer Science

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Abstract. Multi-user communication and interaction via public displays together the pervasive and seamless access to the WWW in public areas via mobile phones or handheld devices is enabled via the WebWall system. A software framework for the operation of WebWalls has been developed, strictly separating WebWall access technologies (like HTTP, email, SMS, WAP, EMS, MMS or even simple paging protocols found on mobile phones) from the physical display technologies used and the presentation logic involved. The architecture integrates ubiquitous wireless networks (GSM, IEEE802.11b), allowing a vast community of mobile users to access the WWW via public communication displays in an ad-hoc mode. A centralized backend infrastructure hosting content posted by users in a display independent format has been developed together with rendering engines exploiting the particular features of the respective physical output devices installed in public areas like airports, trainstations, public buildings, lecture halls, fun and leisure centres and even car navigation systems. A variety of different modular service classes has been developed to support the posting or pulling of WWW media elements ranging from simple sticky notes, opinion polls, auctions, image and video galleries to mobile phone controlled web browsing.

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Lumipoint: multi-user laser-based interaction on large tiled displays

Cited by 73 publications

References 16 publications

Hardware Implementation and Validation of 3D Underwater Shape Reconstruction Algorithm Using a Stereo-Catadioptric System

Hardware Implementation and Validation of 3D Underwater Shape Reconstruction Algorithm Using a Stereo-Catadioptric System

An independent and non-intrusive laser pointer environment control device system

Pervasive Web Access via Public Communication Walls

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