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运动声源声场的可视化是一种重要的运动声源定位的技术手段,利用双目视觉测量技术实现运动声源声场空间的自动测量,自动确定运动声源表面的空间位置,针对声源表面,利用传声器阵列,基于声全息方法实现运动声源声场的重建,建立视频图像与声场的空间映射,并建立视频与声场之间的时序,实现实景视频图像与声场重建结果的融合,可以自动生成声源运动过程的视频。基于该方法所开发了一套试验测量系统,对运动声源的测量试验结果表明,该方法可以有效实现运动声源的视频可视化,使人可以直接从视频中看到声源及其变化过程,使声源的定位和识别变得更加简单。
The visualization of sound field of motion sound source is an important means of locating the moving sound source. Using the binocular vision measurement technology to measure the sound field of the moving sound source automatically, the spatial location of the sound source surface is automatically determined. For the sound source surface, Based on the acoustic holography method, the sound field of the moving sound source is reconstructed, the spatial mapping of the video image and the sound field is established, and the time sequence between the video and the sound field is established to achieve the fusion of the live video image and the sound field reconstruction result. Video of the source movement process. Based on this method, a set of experimental measurement system has been developed. The measurement results of the moving sound source show that this method can effectively realize the video visualization of the moving sound source, make it possible to see the sound source and its changing process directly from the video, So that the sound source positioning and identification easier.