Control method and device for projection display

Abstract

The embodiment of the invention provides a control method and device for projection display. The control method comprises the steps of indentifying a laser indication in a projection area according to collected scene information including the projection area, and obtaining position information of the laser indication which is provided by a laser pen, wherein the scene information is at least one scene image comprising the projection area; determining display control information according to the laser indication and the position information of the laser indication; displaying a corresponding projection image in a controlled mode according to the display control information. By means of the control method and device for projection display, distance interaction is conducted between the laser pen and a display device through projection, a user can flexibly control displaying of the projection image in the scene of projection display, and user experience is improved.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a control method and device for projection display. Background technique [0002] With the continuous popularization of information technology, users' work and study are closely related to information technology; commonly, users often use projection methods to display information on computer screens or other small display areas (such as iPad screens) during conference activities. The information is projected to a larger projection area (such as a whiteboard, projection screen, etc.), which is convenient for participants to watch; when the projected image needs to be changed, the participants can control the computer to change the information displayed on the current display screen, and correspondingly, The image within the projected area will also change. [0003] In the scenario where the user stands in front of the projection area as an interpreter and explains th...

AI Technical Summary

Problems solved by technology

[0003] In the scenario where the user stands in front of the projection area as an interpreter and explains the information in the projection area to the participants, whenever the projected image needs to be changed, the user needs to perform operations on the computer, such as controlling the page turning of the image, clicking on the application icon to start the corresponding application program, and then the user needs to return to the front of the projection area to continue to give instructions on the changed projection image; therefore, in the prior art, since the user cannot directly operate in the projection area to Changing the projected image causes more inconvenience to the user's work and study, and reduces the user's operating experience

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