A pointing system based on acoustic position estimation and gravity sensing

Horiuchi, Toshiharu; Takayama, Shinya; Kato, T.

doi:10.1109/3dui.2011.5759227

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…However, it is not practical to mount two microphones on a cellphone or a smartphone and to install three loudspeakers for a television set. Thus, we proposed a novel approximate system consisting of a smartphone and two loudspeakers by combining the acoustic position estimation technology and a pitch angle from the gravity sensor on the smartphone [4], [5]. Figure 2 shows the configuration of the approximate combined system with two loudspeakers set at both sides of the screen, and a smartphone as a pointing device equipping a single microphone and a gravity sensor inside [4], [5].…”

Section: Approximate Combined System With Two Loudspeak-mentioning

confidence: 99%

“…Thus, we proposed a novel approximate system consisting of a smartphone and two loudspeakers by combining the acoustic position estimation technology and a pitch angle from the gravity sensor on the smartphone [4], [5]. Figure 2 shows the configuration of the approximate combined system with two loudspeakers set at both sides of the screen, and a smartphone as a pointing device equipping a single microphone and a gravity sensor inside [4], [5]. The two-dimensional position of the microphone in the horizontal plane is calculated by trilateration based on two distances from the two loudspeakers, and the vertical direction is obtained by the pitch angle from the gravity sensor.…”

Section: Approximate Combined System With Two Loudspeak-mentioning

confidence: 99%

“…There have been many studies and systems based on this technology [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13]. The GCC-PHAT [7] is the most common approach in the sound source localization technology to estimate the time delay and/or time difference of arrival.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Passive Pointing System for Distant Screens Using Acoustic Position Estimator and Gravity Sensor

Horiuchi

Takayama

Kato

2013

Journal of Information Processing

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This paper presents two passive pointing systems for a distant screen based on an acoustic position estimation technology. These systems are designed to interact with a distant screen such as a television set at home or digital signage in public as an alternative to a touch screen. The first system consists of a distant screen, three loudspeakers set around the screen, and two microphones as a pointing device. The second system consists of a distant screen, two loudspeakers set around the screen, and a smartphone equipping a microphone and a gravity sensor inside as a pointing device. The position of the pointer on the screen is theoretically determined by the position and direction of the pointing device in the space. The second system approximates the position and direction by the two-dimensional position of the microphone horizontally and the pitch angle from the gravity sensor vertically. In this paper, we report experiments to evaluate the performance of these systems. The loudspeakers of these systems radiate burst signal from 18 to 24 kHz. The position of the microphone is estimated at a frame rate of 15 frames per second with a latency of 0.4 s. The accuracy of the pointer was measured as an angle error below 10 degrees for 100% of all frames. We confirmed that it has enough accuracy to point to one of several partitioned areas in the screen.

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Section: Approximate Combined System With Two Loudspeak-mentioning

confidence: 99%

Section: Approximate Combined System With Two Loudspeak-mentioning

confidence: 99%

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Passive Pointing System for Distant Screens Using Acoustic Position Estimator and Gravity Sensor

Horiuchi

Takayama

Kato

2013

Journal of Information Processing

Self Cite

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show abstract

“…for interactive information exchange between man and machine must function as a position encoder. The major considerations in developing an input device handling two dimensional positional information are the location of the input surface, with respect to the display, and the mechanism by which an user indicates selected positions on the input surface [4]. In order to use at the same time the input device and the display, there must be a direct mapping of positions from the two device surfaces.…”

Section: Introductionmentioning

confidence: 99%

A track-pad device based on a piezoelectric bimorph

Caliano

Lamberti

Savoia

et al. 2011

2011 IEEE International Ultrasonics Symposium

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A track-pad is a pointing device featuring a tactile sensor, able to translate the motion and position of a user's finger to a relative position on screen. It is a common feature of laptop computers, but it is also found on PDAs and smartphones. In this work a piezoelectric tactile sensor for track-pad applications is proposed, analyzed with FE methods and experimentally evaluated. The idea at the basis of the present work relies in the well known property of piezoelectric structures to vary its resonant behavior depending on the boundary or load conditions.

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Adaptation strategies to increase advertisement effectiveness in digital media

Bauer

Lasinger

2014

Manag Rev Q

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A pointing system based on acoustic position estimation and gravity sensing

Cited by 5 publications

References 9 publications

Passive Pointing System for Distant Screens Using Acoustic Position Estimator and Gravity Sensor

Passive Pointing System for Distant Screens Using Acoustic Position Estimator and Gravity Sensor

A track-pad device based on a piezoelectric bimorph

Adaptation strategies to increase advertisement effectiveness in digital media

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