Three-dimensional distortion display method, terminal device, and storage medium

A terminal device, comprising:

• one or more processors;
• a memory, the memory being coupled to the processor and storing a computer program stored therein, wherein the computer program, when executed by the one or more processors, causes the one or more processors to perform operations of:
• acquiring target space coordinates of a target marker in a physical space;
• converting the target space coordinates into rendering coordinates in a virtual space;
• acquiring data of a virtual object to be displayed, and rendering the virtual object based on the data on the virtual object and the rendering coordinates;
• and
• generating, by the terminal device, a left-eye display content and a right-eye display content of the virtual object according to the rendered virtual object;
• a display, configured to display the left-eye display content and the right-eye display content;
• and
• an optical module comprising a first optical lens and a second optical lens, wherein the left-eye display content is projected onto a first optical lens, the right-eye display content is projected onto a second optical lens, and the first optical lens and the second optical lens respectively reflect the left-eye display content and the right-eye display content to a user's eyes;
• the displaying the left-eye display content and the right-eye display content comprises:
• processing the left-eye display content and the right-eye display content based on an optical distortion model to obtain a left-eye pre-distorted image corresponding to the left-eye display content and a right-eye pre-distorted image corresponding to the right-eye display content, the optical distortion model being configured to fit an optical distortion generated by an optical lens;
• and
• displaying the left-eye pre-distorted image and the right-eye pre-distorted image, wherein the left-eye pre-distorted image is projected onto the first optical lens and reflected by the first optical lens to a left eye of the user, and the right-eye pre-distorted image is projected onto the second optical lens and reflected by the second optical lens to a right eye of the user, so as to form a virtual image of an undistorted three-dimensional display content;
• the processor is further configured to perform an operation of constructing the optical distortion model, and the operation of constructing the optical distortion model comprises:
• reading optical manufacturer data of the optical lens, the optical manufacturer data comprising coordinate data of an experimental image and coordinate data of an distorted virtual image corresponding to the experimental image;
• and
• performing a polynomial fitting on the coordinate data of the experimental image and the coordinate data of the distorted virtual image to construct the optical distortion model.

A non-transitory computer readable storage medium having a program code stored thereon, wherein the program code, when executed by a processor, causes the processor to perform blocks of:

• determining, by a terminal device, target space coordinates of a target marker in a physical space;
• converting, by the terminal device, the target space coordinates into rendering coordinates in a virtual space;
• acquiring, by the terminal device, data of a virtual object to be displayed;
• rendering, by the terminal device, the virtual object based on the data of the virtual object and the rendering coordinates to obtain a left-eye display content and a right-eye display content of the virtual object;
• and displaying, by the terminal device, the left-eye display content and the right-eye display content, wherein the left-eye display content is projected onto a first optical lens, the right-eye display content is projected onto a second optical lens, the first optical lens and the second optical lens respectively reflect the left-eye display content and the right-eye display content to a user's eyes;
• wherein said displaying the left-eye display content and the right-eye display content comprises:
• processing the left-eye display content and the right-eye display content based on an optical distortion model to obtain a left-eye pre-distorted image corresponding to the left-eye display content and a right-eye pre-distorted image corresponding to the right-eye display content, the optical distortion model being configured to fit an optical distortion generated by an optical lens;
• and displaying the left-eye pre-distorted image and the right-eye pre-distorted image, wherein the left-eye pre-distorted image is projected onto the first optical lens and reflected by the first optical lens to a left eye of the user, and the right-eye pre-distorted image is projected onto the second optical lens and reflected by the second optical lens to a right eye of the user, so as to form a virtual image of an undistorted three-dimensional display content;
• wherein the program code, when being called by the processor, further causes the processor to perform an operation of constructing the optical distortion model, and the operation of constructing the optical distortion model comprises:
• reading optical manufacturer data of the optical lens, the optical manufacturer data including coordinate data of an experimental image and coordinate data of an distorted virtual image corresponding to the experimental image;
• and performing a polynomial fitting on the coordinate data of the experimental image and the coordinate data of the distorted virtual image to construct the optical distortion model.