Method for Obtaining Depth Information and Electronic Device

An electronic device, comprising:

• an infrared projector;
• a first camera having a first lens focal length;
• a second camera having a second lens focal length, wherein a distance between the first camera and the second camera is a first length;
• a processor coupled to the infrared projector, the first camera, and the second camera;
• and
• a memory coupled to the processor and configured to store instructions that, when executed by the processor, cause the electronic device to be configured to:
• receive a first instruction, wherein the first instruction is configured to trigger the electronic device to obtain depth information of a target object;
• in response to the first instruction,
• emit infrared light with a light spot using the infrared projector;
• collect first image information of the target object using the first camera;
• and
• collect second image information of the target object using the second camera, wherein the first image information and the second image information comprise a feature of the target object and a texture feature formed when the infrared light with the light spot is emitted onto the target object;
• and
• calculate the depth information based on the first image information, the second image information, the first length, the first lens focal length, and the second lens focal length.

A non-transitory computer storage medium having computer usable instructions stored thereon for execution by a processor, wherein the instructions cause the processor to:

• receive a first instruction to obtain depth information of a target object;
• in response to the first instruction:
• emit infrared light with a light spot using an infrared projector of an electronic device;
• collect first image information of the target object using a first camera of the electronic device;
• and
• collect second image information of the target object using a second camera of the electronic device, wherein the first image information and the second image information comprise a feature of the target object and a texture feature formed when the infrared light with the light spot is emitted onto the target object;
• and
• calculate the depth information based on the first image information, the second image information, a first length between the first camera and the second camera, a first lens focal length of the first camera, and a second lens focal length of the second camera.