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Method and arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium

An optical information and acoustic technology, applied in the field of detecting acoustic and optical information, to achieve the effect of eliminating stray sources or false sources

Active Publication Date: 2016-03-09
计算机科学应用促进会
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  • Abstract
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  • Claims
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Problems solved by technology

Furthermore, the rigging has to be performed additionally, i.e. the relative position of the microphone array to the 3D model has to be determined

Method used

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  • Method and arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium
  • Method and arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium
  • Method and arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium

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Embodiment Construction

[0037] The present invention will now be explained in more detail with reference to exemplary embodiments. According to an embodiment, the annular microphone array 102, 102' moves around the object 106, the annular microphone array being arranged in a defined positional relationship relative to the one or more 3D scanners 104, 104'. Linear, cross, spherical microphone arrays with randomly distributed microphones 108, 108' can be used as microphone arrays instead of circular microphone arrays 102, 102'. Also, one or more cameras may be used instead of at least one 3D scanner 104, 104'. When a video camera is used, sound-emitting objects can be obtained in two dimensions and a 3D model of the object is generated e.g. by photogrammetric 3D reconstruction, as e.g. WissenschaftlicherVerlag, Berlin 2004" described.

[0038] Likewise, the exemplary method may also be modified by moving the object relative to the statically arranged microphone array 102, 102' instead of moving ...

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Abstract

The invention relates to a method and an arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium, which can in particular be used to generate three-dimensional sound maps. The sound maps can be visualized and provided with information about acoustic sources, sound power and emitter characteristics. For this purpose, it is proposed to use for the detection of acoustic and optical information at least one microphone array and at least one device for detecting optical geometry data, wherein the at least one microphone array and the at least one device for detecting optical geometry data are arranged in a defined positional relationship. Acoustic information emitted from an object and the geometry of the object are detected by moving the at least one microphone array, the at least one device for detecting optical geometry data and the object relative to each other.

Description

technical field [0001] The present invention relates to methods and devices for detecting acoustic and optical information, as well as corresponding computer programs and corresponding computer-readable storage media, which may be used in particular for generating three-dimensional sound maps. Sound maps can be visualized and have information about sound sources, sound power and emitter characteristics. Background technique [0002] Beamforming utilizing microphone arrays for sound source localization has been developed internationally over the past 10 years and is now state of the art. Multiple microphones are thus permanently connected to one or more video cameras, and the sound field and video are digitally recorded in parallel. Using various computer-aided signal processing techniques, the sound field is decomposed into separate sources from the microphone data, and the extracted acoustic map is overlaid with the video image. Sound sources are assigned to corresponding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/06G01S5/20H04N13/221
CPCG01S5/20G01S15/06H04N13/221G01H9/002H04N13/111H04N13/296G01B11/00G01B17/00H04R3/00H04R5/027H04R2203/12
Inventor D·德布勒G·海尔曼A·迈尔
Owner 计算机科学应用促进会
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