JP2011205522A - Projector and control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector or the like that can be remotely controlled without using an operating means such as a remote controller.SOLUTION: A projector 100 includes: an input unit 110 that receives first image information indicative of a first image from a controller; a determiner 130 that determines whether operation image information indicative of an operation image is contained in the first image information input to the input unit 110 regardless of a set source indicative of a device that has input the image information, and also for determining whether control operation has been carried out, on the basis of the operational image information; and a control unit 140 for performing control operation according to a control operation.

Description

  The present invention relates to a projector and a control method.

  When a user projects an image using a projector, for example, as described in Japanese Patent Application Laid-Open No. 2009-3318, the user operates an operation button provided on a remote controller or a projector body to display an image. A method (method 1) for performing control such as non-display (image mute) is common.

  As a method that does not use a remote controller or the like, as described in Japanese Patent Application Laid-Open No. 2005-141151, a projected image on which an icon image for function setting is displayed is captured, and the function setting of the user is performed using the captured image. A method (method 2) for determining an operation has also been proposed.

JP 2009-3318 A JP-A-2005-141151

  However, in the case of method 2, it is necessary to use a camera or the like, and it is necessary to display an icon image on the projected image, which hinders viewing. Further, since the method 2 is a method in which the projector generates function setting information and detects the user's operation in the projected image, the projector cannot be controlled from a remote place.

  Some aspects according to the present invention provide a projector and a control method capable of performing remote control without using operation means such as a remote controller by solving the above-described problems.

  The projector according to one aspect of the present invention includes the input unit to which the first image information indicating the first image is input from the control device and the source setting content indicating the input source of the image information. A determination unit that determines whether or not the operation image information indicating the operation image is included in the first image information input to the unit, and determines whether or not a control operation has been performed based on the operation image information And a control unit that performs control according to the control operation.

  According to another aspect of the present invention, there is provided a control method for a projector having an input unit to which first image information indicating a first image is input from a control device, wherein the projector Regardless of the source setting content indicating the input source of information, it is determined whether the first image information input to the input unit includes operation image information indicating an operation image, and the first image When the operation image information is included in the information, it is determined whether a control operation has been performed based on the operation image information, and control according to the control operation is performed.

  According to the present invention, the projector can perform control based on the operation image information included in the first image information from the control device regardless of the designation of the input source of the image information. Remote control can be performed without using the operation means.

  In addition, the projector may include an image generation unit that generates the first image that does not include the operation image based on the first image information. Accordingly, the projector generates an image that does not include the operation image, so that the user can perform control without hindering normal image projection.

  In addition, the first image information is input to the input unit regardless of the content of the source setting, and a second image indicating a second image from the image supply device according to the content of the source setting. Information is input, the operation image includes a source switching operation image for designating an input source of image information, and the determination unit determines whether the control operation is a source switching operation, and the source In response to a switching operation, it is determined whether to generate the second image or the first image as the designation, and the image generation unit adds the second image information to the designation according to the designation. The second image may be generated based on the first image, or the first image that does not include the operation image may be generated based on the first image information. According to this, the projector can generate an image corresponding to the source switching operation. In addition, this allows the projector to generate the image based on the image information from the image supply device and to generate the image information from the control device even when the image supply device is designated as the image information input source. Based on the control can be performed.

  In addition, the determination unit includes a first operation image information input to the input unit at a first time point and a second operation image input to the input unit at a second time point different from the first time point. It may be determined whether the control operation has been performed by comparing the operation image information. According to this, the projector can determine whether or not the control operation has been performed according to the change in the operation image, and the user can perform desired control by changing the operation image.

  The operation image includes a plurality of button images each indicating different control contents, and the determination unit determines the control contents based on determination data in which the button image and the control contents are associated with each other. The control unit may perform the control according to the determination. According to this, the projector can perform various controls by using the determination data.

  The operation image includes an identification image for preventing erroneous determination, and the determination unit includes the operation image information when the first image information does not include information indicating the identification image. If the determination unit determines that the operation image information is not included, the control unit may not perform the control. According to this, the projector can prevent erroneous determination in a state where a part of the operation image is hidden by another image.

It is a figure which shows an example of the projection system in a 1st Example. It is a functional block diagram of the projector in a 1st Example. It is a flowchart which shows the projection procedure of the image in a 1st Example. It is a figure which shows an example of the image of PC in a 1st Example. It is a figure which shows another example of the image of PC in a 1st Example. It is a figure which shows an example of the image of the DVD player in a 1st Example. It is a functional block diagram of the projector in a 2nd Example. It is a flowchart which shows the projection procedure of the image of PC in a 2nd Example. It is a figure which shows an example of the image of PC in a 2nd Example.

  Embodiments in which the present invention is applied to a projector will be described below with reference to the drawings. In addition, the Example shown below does not limit the content of the invention described in the claim at all. In addition, all the configurations shown in the following embodiments are not necessarily essential as means for solving the invention described in the claims.

(First embodiment)
FIG. 1 is a diagram illustrating an example of a projection system according to the first embodiment. The projection system includes a PC 200 that is a type of control device, a DVD player 300 that is a type of image supply device, and a projector 100. The projector 100 receives first image information indicating the first image from the PC 200 via the D-Sub terminal, and second image information indicating the second image from the DVD player 300 via the HDMI terminal. Is entered.

  The projector 100 projects the first image or the second image in response to an instruction by a source switching operation or the like. In the present embodiment, operation image information indicating an operation image including a plurality of control button images is included in the first image information, and the projector 100 performs control such as source switching according to a change in the operation image information. It has a function.

  Next, functional blocks of the projector 100 having such functions will be described. FIG. 2 is a functional block diagram of the projector 100 according to the first embodiment. The projector 100 receives the first image information indicating the first image from the control device regardless of the designation of the input source of the image information, and the second image indicating the second image from the image supply device according to the designation. An input unit 110 to which image information is input, a storage unit 120 that stores data, a determination unit 130 that determines a change in image information, a control unit 140 that performs control according to a control operation, and an image are generated. The image generation unit 150 includes a projection unit 190 that projects an image generated by the image generation unit 150 onto a screen or the like. The storage unit 120 also includes determination data 122 in which the button image in the operation image is associated with the control content, second image information 126 that is image information from the DVD player 300, and image information from the PC 200. First image information 124 and the like are stored.

  The projector 100 may function as each of these units using the following hardware. For example, in the projector 100, the input unit 110 is an HDMI terminal, a D-Sub terminal, a converter, the storage unit 120 is a RAM, the determination unit 130, the control unit 140 is a CPU, the image generation unit 150 is an image processing circuit, and the like. The unit 190 may use a lamp, a liquid crystal panel, a liquid crystal driving circuit, a lens, or the like.

  Next, an image projection procedure in the present embodiment will be described. FIG. 3 is a flowchart showing an image projection procedure in the first embodiment. The PC 200 displays an application image or the like on the screen of the PC 200, and displays an operation image according to a user instruction.

  FIG. 4 is a diagram illustrating an example of an image 400 of the PC in the first embodiment. FIG. 5 is a diagram showing another example of the PC image 401 in the first embodiment. An image 400 for which an operation image 500 display instruction has been issued includes an application image 410 and an operation image 500. In the operation image 500, an identification image 520 indicating “S” is arranged in the upper left, an identification image 521 showing “E” is arranged in the lower right, and a button image for switching the source (image information input source) to the PC 200 510, a button image 511 for switching the source to the DVD player 300, and a button image 512 for muting (temporarily hiding) the image. Further, the operation image 500 may be, for example, an OSD (On Screen Display) image.

  For example, the user moves the mouse pointer to the position of the button image 511 and clicks the button image 511 using the mouse. Thereby, an image 401 including the operation image 501 in which the color of the button image 511 is changed is displayed.

  While connected to the projector 100, the PC 200 outputs first image information 124 indicating images (first images) 400 and 401 to the projector 100. The input unit 110 receives the first image information 124 from the PC 200 and stores it in the storage unit 120 (step S1).

  The determination unit 130 determines whether or not the identification image information indicating the identification images 520 and 521 is included in the first image information 124 (step S2). When the identification images 520 and 521 are included, the determination unit 130 compares the first image information 124 at the time point t with the first image information 124 at the time point t + 1 (for example, one frame after the time point t). (Step S3).

  Thereby, the determination part 130 determines whether the operation images 500 and 501 have changed (step S4). For example, when the operation image 500 in FIG. 4 and the operation image 501 in FIG. 5 are compared, it is determined that the button image 511 has changed.

  When the operation images 500 and 501 are changed, the determination unit 130 refers to the determination data 122 and determines the control content corresponding to the changed button image 511 (step S5). For example, when there is a change in the button image 511, the control content is control to switch the source to the HDMI terminal. Further, for example, when the button image 512 is changed, the control content is control for enabling mute, and when the button image 512 is restored, the control content is control for invalidating mute. The control unit 140 determines whether or not the determined control is control related to source switching (step S6). If the determined control is control related to source switching, the control unit 140 performs source switching control (step S7). On the other hand, when it is not control regarding source switching, the control part 140 performs mute control (step S8).

  The determination unit 130 determines whether the current source is an HDMI terminal (step S7). When the current source is an HDMI terminal, the image generation unit 150 generates an image based on the second image information 126 input from the DVD player 300, and the projection unit 190 projects the image ( Step S8).

  FIG. 6 is a diagram showing an example of an image 600 of the DVD player in the first embodiment. For example, the image 600 is an image showing a landscape or the like. The image generation unit 150 generates an image 600 that is a second image that does not include the operation images 500 and 501 based on the second image information 126, and the projection unit 190 projects the image 600.

  On the other hand, when the current source is not the HDMI terminal, that is, when the source is the D-Sub terminal, the image generation unit 150 generates the images 400 and 401 based on the first image information 124 input from the PC 200. The projection unit 190 projects the images 400 and 401 (step S9).

  The projector 100 determines whether or not there is an end instruction (step S10), and repeatedly executes the above-described series of processing (steps S1 to S10) based on the first image information until there is an end instruction.

  As described above, according to the present embodiment, the projector 100 can perform control based on the operation image information included in the first image information 124 from the PC 200 regardless of the designation of the input source of the image information. Therefore, the user can perform remote control without using operation means such as a remote controller.

  Further, according to the present embodiment, the projector 100 can generate an image according to the source switching operation. Accordingly, even when the DVD player 300 is designated as the input source of the image information, the projector 100 generates an image based on the image information from the DVD player 300 while the PC 100 200 generates the image. Control based on the image information can be performed.

  Further, according to the present embodiment, the projector 100 can determine whether or not a control operation has been performed in accordance with changes in the operation images 500 and 501, and the user can change the operation images 500 and 501. Desired control can be performed. Further, according to the present embodiment, the projector 100 can perform various controls by using the determination data 122.

  The operation images 500 and 501 include identification images 520 and 521 for preventing erroneous determination. When the determination unit 130 does not include information indicating the identification images 520 and 521 in the first image information 124, the operation image It is determined that the information is not included, and in this case, the control unit 140 does not perform control, thereby preventing erroneous determination in a state where a part of the operation images 520 and 521 is hidden by another image. it can.

(Second embodiment)
In the first embodiment, when the projector 100 projects the first image based on the image information from the PC 200, the projector 100 projects the images 400 and 401 including the operation images 500 and 501, but the operation images 500 and 501 are projected. Even if the image is included in the first image, an image not including the operation images 500 and 501 may be projected.

  FIG. 7 is a functional block diagram of the projector 101 in the second embodiment. The projector 101 is the same as the projector 100, but differs from the projector 100 in that the image generation unit 151 generates the projection image data 128 according to the determination of the determination unit 131 and stores it in the storage unit 121.

  Next, an image projection procedure of the image PC 200 in the present embodiment will be described. FIG. 8 is a flowchart showing a procedure for projecting an image of a PC in the second embodiment. For example, instead of the process in step S9 described above, the following process is executed in the present embodiment.

  When the source is the D-Sub terminal, that is, when the projector 101 projects the first image from the PC 200, the determination unit 131 displays region information indicating the region surrounded by the identification images 520 and 521 as an image generation unit. 151 (step S11).

  The image generation unit 151 generates projection image data 128 based on the region information and the first image information 124, stores the projection image data 128 in the storage unit 121 (step S12), and generates an image based on the projection image data 128. Then, the projection unit 190 projects the image (step S13).

  FIG. 9 is a diagram illustrating an example of an image 402 of the PC in the second embodiment. The image 402 includes the application image 410 and does not include the operation images 500 and 501. For example, the image generation unit 151 generates the projection image data 128 by filling the area using the RGB values (values indicated by the first image information 124) of pixels adjacent to the area indicated by the area information. It is possible. Accordingly, the image generation unit 151 can generate the image 402 that does not include the operation images 500 and 501, and the projection unit 190 can project the image 402.

  As described above, according to this embodiment as well, the projector 101 has the same operational effects as those of the first embodiment. Further, according to the present embodiment, the projector 100 generates the image 402 that does not include the operation images 500 and 501, so that the user performs control without hindering the projection of a normal image such as the application image 410. be able to.

(Other examples)
In addition, application of this invention is not limited to the Example mentioned above, A various deformation | transformation is possible. For example, the identification images 520 and 521 are not limited to the example described above. For example, the identification image may be one horizontally long image such as a title bar. Further, the determination units 130 and 131 may determine not to perform control when there is no image information indicating at least one of the button images 510 to 512 in the first image information 124.

  The control content is not limited to source switching and image muting, but includes audio muting, projector 100 and 101 power off, moving image playback pause, moving image playback pause release, and the like. May be.

  In addition, the change in the button images 510 to 512 is not limited to a change in color, and may be, for example, a change in shape, a change in pattern, a change in position, or the like.

  Further, the control device is not limited to the PC 200, and various devices capable of outputting image information and control information such as a mobile phone and a portable information terminal can be applied. The image supply device is not limited to the DVD player 300, and various devices capable of outputting image information such as a PC and a photo storage can be applied.

  The computer included in the projectors 100 and 101 may function as the control unit 140 by reading a program stored in the information storage medium. As such an information storage medium, for example, a CD-ROM, DVD-ROM, ROM, RAM, HDD, or the like can be applied.

  Further, the projectors 100 and 101 are not limited to liquid crystal projectors (transmission type, reflection type such as LCOS), and may be projectors using a digital micromirror device, for example. Further, the projection unit 190 may include a solid light source such as an LED instead of the lamp. Further, the functions of the projectors 100 and 101 may be distributed to a plurality of devices (for example, a PC and a projector).

  100, 101 projector, 110 input unit, 120 storage unit, 122 determination data, 124 first image information, 126 second image information, 128 projection image data, 130, 131 determination unit, 140 control unit, 150, 151 Image generation unit, 190 projection unit, 200 PC (control device), 300 DVD player (image supply device), 400 to 402 image (first image), 410 application image, 500, 501 operation image, 510 512 button image, 520, 521 identification image, 600 image (second image)

Claims (7)

An input unit to which first image information indicating the first image is input from the control device;
Regardless of the source setting content indicating the input source of the image information, it is determined whether the first image information input to the input unit includes operation image information indicating an operation image, and the operation image A determination unit that determines whether a control operation has been performed based on the information;
A control unit that performs control according to the control operation;
Including projector. The projector according to claim 1.
A projector including an image generation unit that generates the first image that does not include the operation image based on the first image information. The projector according to claim 2,
Regardless of the content of the source setting, the first image information is input to the input unit, and second image information indicating a second image is displayed from the image supply device according to the content of the source setting. Entered,
The operation image includes a source switching operation image for designating an input source of image information,
The determination unit determines whether the control operation is a source switching operation and whether to generate the second image or the first image as the designation according to the source switching operation. Decide
The image generation unit generates the second image based on the second image information according to the designation, or includes the first image not including the operation image based on the first image information. Generate an image of
projector. The projector according to any one of claims 1 to 3,
The determination unit includes first operation image information input to the input unit at a first time point, and a second operation image input to the input unit at a second time point different from the first time point. Determining whether the control operation has been performed by comparing with information;
projector. The projector according to claim 4,
The operation image includes a plurality of button images each indicating different control contents,
The determination unit determines the control content based on determination data in which the button image and the control content are associated with each other.
The control unit performs the control according to the determination.
projector. In the projector in any one of Claims 1-5,
The operation image includes an identification image for preventing erroneous determination,
The determination unit determines that the operation image information is not included when the first image information does not include information indicating the identification image.
The control unit does not perform the control when the determination unit determines that the operation image information is not included,
projector. A control method in a projector having an input unit to which first image information indicating a first image is input from a control device,
The projector is
Regardless of the source setting content indicating the input source of the image information, it is determined whether the first image information input to the input unit includes operation image information indicating an operation image;
When the operation image information is included in the first image information, it is determined whether a control operation has been performed based on the operation image information;
Performing control according to the control operation,
Control method.