Method and device for switching 3D image space and 3D audio visual space

The invention provides a method and device for switching 3D image space and 3D audio visual space. The method comprises the steps that the position of the center point in an image coordinate system and the position of a target object are used as input to obtain the azimuth information of the target object relative to the center point, and the azimuth is mapped to obtain the azimuth information of the target object relative to the center point in an audio visual coordinate system; the depth value of the target object and the depth value of the center point are extracted from a 3D video, the depth difference of the target object and the center point is calculated, and switching is conducted to obtain the distance information of the target object relative to the center point by using a physical unit as measurement; the target position of the target object in the audio visual coordinate system is restored. According to the method and device for switching the 3D image space and the 3D audio visual space, the scheme for converting the image space to be the 3D audio visual space is creatively provided, the azimuth information of the target object is acquired in the image space, the distance information of the target object is acquired in the 3D video, then the target position of an acoustic image is restored in the audio visual space, and the azimuth information of the target object is reconstructed.