Picture selection method of projection touch

A picture selection method of projection touch for a user to select a target picture through a projection touch system, the target picture comprising at least one to-be-selected picture, the projection touch system comprising an image projector, a sensor, an image recognizer comprising at least one camera module and a processor, the image projector, the sensor, the image recognizer and the processor being connected with each other, the image projector being for projecting an image data screen of the projection touch system, and the picture selection method comprising steps of:

• a) the sensor sensing and transferring the at least one to-be-selected picture in the target picture triggered by the user for at least one time;
• b) the processor performing selection of a content of the target picture based on a position selected by a first projection coordinate and generating selected image data;
• and
• c) the processor controlling the selected image data projected by the image projector to move to a corresponding position designated by the user according to a movement instruction of the user;
• wherein after the step b) the picture selection method further comprises steps of:
• b1′) the processor determining whether the sensor senses a second projection coordinate on the target picture at a second time point of a sensing action;
• b2′) if the second projection coordinate is sensed on the selected picture, the image projector displaying an error message and re-sensing the sensing action;
• b3′) if the second projection coordinate is sensed outside the selected picture, prompting the user to select another to-be-selected picture in the target picture;
• b4′) the sensor sensing and transferring a third projection coordinate on the target picture triggered by the user at a third time point of the sensing action;
• b5′) the processor determining whether the at least one third projection coordinate is within a coverage range of a coordinate of any of the selected pictures;
• b6′) if the at least one third projection coordinate is within the coverage range, the sensor sensing and transferring the selected image data moved by the user at a fourth time point of the sensing action;
• and
• b7′) the processor controlling the selected image data projected by the image projector to move to the corresponding position designated by the user according to the movement instruction of the user;
• wherein the projection touch system further comprises a database connected with the processor, and the step c) comprises a step of:
• c1) the processor searching the database based on a content of the selected image data and obtaining a set of related information corresponding to the selected image data;
• wherein the step c1) comprises a step of:
• c11) the processor controlling the image projector to activate a function of displaying related information of the selected image data and determining whether the function is triggered by the user;
• wherein a method of the image projector activating a function of displaying related information of the selected image data comprises a step of:
• c111) displaying a virtual key and determining whether the virtual key is triggered by the user;
• c112) issuing a voice prompt and determining whether the function is triggered by the user's voice;
• or
• c113) analyzing a gesture of the user and determining whether the function is triggered by the gesture of the user.