CN-115643380-B - Projector control method and projector

CN115643380BCN 115643380 BCN115643380 BCN 115643380BCN-115643380-B

Abstract

The invention provides a projector control method and a projector, which can be switched from a geometric correction execution mode to an image display enlargement, reduction or movement execution mode by a simple means. The projector control method includes executing a first mode in which a projection image projected onto a display surface is generated by deforming a shape of an input image, accepting a change operation of the input image for changing a size of a display image displayed by projecting the projection image onto the display surface or a position of the display image on the display surface in execution of the first mode, and, when accepting the change operation, switching from the first mode to a second mode in which a change of the input image based on the change operation is controlled.

Inventors

TOKUYAMA TETSURO

Assignees

精工爱普生株式会社

Dates

Publication Date: 20260505
Application Date: 20220718
Priority Date: 20210719

Claims (8)

1. A control method of a projector, comprising: Executing a first mode, wherein the first mode is to generate a projection image projected to a display surface by deforming a shape of an input image; In the execution of the first mode, receiving a change operation of the input image, wherein the change operation is used for changing a size of a display image displayed by projecting the projection image onto the display surface or a position of the display image on the display surface; When the change operation is accepted, the method transitions from the first mode to a second mode for controlling the change of the input image based on the change operation, and In the execution of the second mode, when the change operation is not performed for a predetermined time or when an operation to return to the first mode is accepted, the operation is shifted to the first mode.
2. The projector control method according to claim 1, wherein, In the control method of the projector as described above, The first mode is to individually control a plurality of control points included in the input image to deform a shape of the input image, The second mode is to control the plurality of control points in a unified manner to control the change to the input image.
3. The control method of a projector according to claim 1 or 2, wherein, The control method of the projector further comprises the following steps: Displaying a first image for selecting the first mode, and When the input of the change operation is received while the first image is displayed, the mode is shifted to the second mode.
4. The projector control method according to claim 3, wherein, The control method of the projector further comprises the following steps: When the change operation is accepted, a second image indicating that the current mode is the second mode is displayed.
5. The projector control method according to claim 4, wherein, The second image is displayed overlapping with the first image or side by side with the first image.
6. The control method of a projector according to claim 1 or 2, wherein, The projector having an operating member that indicates control of at least one of the size and the position, The changing operation is an operation on the operating element.
7. The projector control method according to claim 6, wherein, The control method of the projector further comprises the following steps: Controlling a unit adjustment amount according to a time length of an operation of the operation member, wherein the unit adjustment amount is an adjustment amount of the size or the position per unit time; Adjusting the size or the position based on the time length and the unit adjustment amount, and When at least 1 vertex of the projected image is located outside a predetermined area of a projected image generating device provided in the projector by the adjustment, the unit adjustment amount is reduced.
8. A projector, wherein, The projector has: Storage device for storing control program, and The processing device comprises a processing device and a processing device, The processing device performs the following processing: executing a first mode by reading out and executing the control program from the storage device, wherein the first mode is to generate a projection image projected to a display surface by deforming a shape of an input image, In the execution of the first mode, receiving a change operation of the input image, wherein the change operation is used for changing a size of a display image displayed by projecting the projection image onto the display surface or a position of the display image on the display surface, When the change operation is accepted, the mode is shifted from the first mode to a second mode for controlling the change of the input image based on the change operation, In the execution of the second mode, when the change operation is not performed for a predetermined time or when an operation to return to the first mode is accepted, the operation is shifted to the first mode.

Description

Projector control method and projector Technical Field The invention relates to a projector control method and a projector. Background In the case of performing various settings in a projector, a projection image may be projected by the projector, and a setting screen for performing the settings may be superimposed on a display image displayed on a display surface. The user performs setting of the projector by operating the projector using a setting screen superimposed on the display image. The function of displaying a setting screen of a projector or a message from the projector On a display surface is generally called OSD (On SCREEN DISPLAY: screen display). For example, patent document 1 discloses a projector capable of performing a lens setting and an image quality setting by OSD display. In the projector of patent document 1, the displayed menu is different between when in the normal mode and when in a mode dedicated to adjustment of the projection image shifted from the normal mode in the case where the lens is replaced. Patent document 1 Japanese patent laid-open No. 2020-122888 In the technique of patent document 1, a menu screen displayed in each of a normal mode and a mode dedicated to adjustment of a projection image includes a menu of each function using digital zoom, digital shift, and geometric correction. In the case where the user of the projector of patent document 1 wants to use the digital zoom function in the middle of using the geometrically corrected function, for example, the digital zoom function cannot be called out during the use of the geometrically corrected function. Therefore, the user needs to return to the menu screen after temporarily ending the function of utilizing the geometric correction, and call out the function of digital zooming from the menu screen. Therefore, the user must perform the process between items included in the menu screen, and there is room for improvement in terms of convenience. Disclosure of Invention A control method for a projector that projects a projected image onto a display surface includes executing a first mode in which the projected image is generated by deforming the shape of an input image, accepting a change operation of the input image in the execution of the first mode, wherein the change operation is used to change the size of a display image displayed by projecting the projected image onto the display surface or the position of the display image on the display surface, and, when accepting the change operation, switching from the first mode to a second mode in which the change of the input image based on the change operation is controlled. A projector according to one embodiment of the present invention is a projector for projecting a projection image onto a display surface, and includes a storage device for storing a control program, and a processing device for executing a process of reading out the control program from the storage device and executing a first mode for generating a projection image projected onto the display surface by deforming a shape of an input image, wherein a change operation for changing a size of a display image displayed by projecting the projection image onto the display surface or a position of the display image on the display surface is accepted during execution of the first mode, and when the change operation is accepted, a transition is made from the first mode to a second mode for controlling a change of the input image based on the change operation. Drawings Fig. 1 is a block diagram showing the structure of a projector 1 of one embodiment. Fig. 2 is a block diagram showing the configuration of the input image generation unit 123 according to one embodiment. Fig. 3 is a block diagram showing the configuration of the mode control unit 128 according to one embodiment. Fig. 4 (a) to (e) are explanatory diagrams of geometric correction of the projection image generating section 121. Fig. 5A is an explanatory diagram of an example of geometric correction concerning one embodiment. Fig. 5B is an explanatory diagram of an example of geometric correction concerning one embodiment. Fig. 5C is an illustration of an example of geometric correction for one embodiment. Fig. 5D is an illustration of an example of geometric correction for one embodiment. Fig. 6 is a diagram showing an example of a menu screen used when the user selects the type of geometric correction in one embodiment. Fig. 7 (a) to (e) are explanatory diagrams in the case where enlargement or reduction of a display image is performed using an image processing method as a comparative example. Fig. 8 (a) to (f) are explanatory diagrams of the case where the display image is enlarged or reduced by using the image processing method according to one embodiment. Fig. 9 (a) to (e) are explanatory diagrams in the case where the movement of the display image is performed using the image processing method as a comparative example. Fig. 10 (a) to (f) are expl