Electronic device, projection system, and projection method thereof

A projection system, comprising projection device and electronic device, wherein:

• the projection device comprises a camera and a first processor, wherein:
• the camera takes a first image of the target area, wherein the first image comprises a depth information of a foreground object and a background object in the target area;
• and
• the first processor is configured to receive the first image, and obtain a foreground contour corresponding to the foreground object through analyzing the depth information of the first image;
• the electronic device is communicatively coupled to the projection device, the electronic device comprises a second processor, and configured to execute:
• overlaying a selected pattern onto the foreground contour to generate a second image, and providing the second image to the projection device, allowing the projection device to project the second image to the target area.

A projection method, configured to control a projection device, the projection method comprising:

• controlling the projection device to project a marked image having a plurality of predetermined marks to a target area;
• taking a first image of the target area, wherein the first image comprises a foreground object and a background object in the target area;
• analyzing the first image to obtain a foreground contour corresponding to the foreground object;
• and
• overlaying a selected pattern onto the foreground contour to generate a second image, and controlling the projection device to project the second image to the target area.

A projection method, configured to control a projection system, wherein the projection system comprises a projection device and an electronic device, the projection device comprises a camera and a first processor, the projection method comprises:

• taking a first image of the target area through the camera of the projection device, wherein the first image comprises a depth information of a foreground object and a background object in the target area;
• obtaining and analyzing the first image through the first processor, to obtain a foreground contour corresponding to the foreground object according to the depth information of the first image;
• and
• overlaying a selected pattern onto the foreground contour to generate a second image through the electronic device, and providing the second image to the projection device, allowing the projection device to project the second image to the target area.