Abstract: An image cast system includes: a transparent holographic display screen; a first diffraction grating superimposed at a first display surface of the transparent holographic display screen; a second diffraction grating superimposed at a second display surface of the transparent holographic display screen; a plurality of cast light sources including a cast light source disposed outside and facing towards the transparent holographic display screen or a cast light source disposed inside the transparent holographic display screen; and a control device connected to the transparent holographic display screen, the first diffraction grating, the second diffraction grating, and the plurality of cast light sources. The control device controls at least one cast light source of the plurality of cast light sources to cast a virtual scene image onto the first display surface of the transparent holographic display screen; and outputs an electrical control signal to the second diffraction grating.

Abstract: An image display method includes: obtaining an input operation by a first user on a virtual interactive object displayed on a first display surface of a transparent holographic display screen; determining, in conjunction with the input operation, a movement trajectory of the virtual interactive object, a first appearance state feature of the virtual interactive object relative to an eye position of the first user, and a second appearance state feature of the virtual interactive object relative to an eye position of a second user, after a current moment; displaying the virtual interactive object having the movement trajectory and the first appearance state feature on the first display surface of the transparent holographic display screen; and displaying the virtual interactive object having the movement trajectory and the second appearance state feature on a second display surface of the transparent holographic display screen.

Abstract: The present disclosure provides an audio output method, including acquiring attribute information and location information of at least one object from an environment in which a user is located; determining, based on the attribute information, at least one piece of audio information that corresponds to the at least one object; determining, based on the location information, a relative spatial relationship between the at least one object and the user; adjusting, based on the relative spatial relationship, an output parameter of the at least one piece of audio information; and outputting, based on the output parameter, the at least one piece of audio information indicative of the location information of the at least one object.

Abstract: The present disclosure provides an audio output method, including acquiring attribute information and location information of at least one object from an environment in which a user is located; determining, based on the attribute information, at least one piece of audio information that corresponds to the at least one object; determining, based on the location information, a relative spatial relationship between the at least one object and the user; adjusting, based on the relative spatial relationship, an output parameter of the at least one piece of audio information; and outputting, based on the output parameter, the at least one piece of audio information indicative of the location information of the at least one object.