JP2005109916A - Projector system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector system as a reproducing device capable of reproducing a beautiful photograph in whatever condition by appropriately reflecting the information of a projection destination. <P>SOLUTION: In the projector system 55, an image formed by a projection image forming part 32 is projected to a monitor range 46. An image pickup element 12, an image processing circuit 13 and a distance detection circuit 19 detect the state of the monitor range 46 at that time, and only in an effective area 41 which is determined to be uniform by a uniform surface determining part 38, the image to be projected is reduced and projected. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement in a projector system for projecting and appreciating a photographed image.

  Conventionally, various methods have been proposed as a method for reproducing a photograph. As a method for reproducing a photographed image, print output to photographic paper or the like has been performed for a long time. However, the technology for easily reproducing an image on a large screen with a simple device tends to be overlooked because it is easily restricted by the size of the paper to be printed and the size of the monitor screen.

  In addition to reproduction on a display, a method for viewing an image by projecting it on a wall surface by a so-called projector is known. Due to the widespread use of such projectors, small and portable products have been introduced in recent years, attracting attention as video display means, and there has been a demand for quick integration with conventional photographic culture.

Although this is a technical field different from photography, for example, an electronic blackboard and a projector are combined and data is synthesized by communicating them (for example, see Patent Document 1), and the viewer is switched depending on the type of film. A technique for switching the projection of a projector is known (for example, see Patent Document 2).
Japanese Patent Laid-Open No. 11-187178 JP 2000-222163 A

  However, the techniques described in Patent Document 1 and Patent Document 2 described above are projectors that reflect images and projection results, and are aimed solely at intelligentization as office equipment. Therefore, it was not aimed at appreciating beautiful photos.

  Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a projector system as a reproducing apparatus that appropriately reflects information on a projection destination and enables beautiful photo reproduction under any conditions. And

  That is, the invention described in claim 1 is a projector that forms an image on a projection plane and performs projection, a projection plane detection unit that detects a state of the projection plane, and a projection detected by the projection plane detection unit. Control means for switching and controlling the image to be projected according to the state of the surface.

  By adopting such a configuration, it is possible to appropriately reflect the projection destination information and to reproduce a beautiful photograph under any conditions.

  According to a second aspect of the present invention, in the first aspect of the invention, the color determination unit that determines a change in color on the projection plane detected by the projection plane detection unit, and the color determination unit. Image switching means for reducing and projecting an image on a portion on the projection plane determined to have no color change is further provided.

  With such a configuration, even if there is a color different from the projection surface at the projection destination, it is possible to reproduce a photograph while avoiding the different color portion.

  According to a third aspect of the invention, there is provided the camera according to the second aspect of the invention, further comprising a camera that can be connected to the projector and that captures the image to be projected. The camera is configured to include an image sensor that captures a subject and a distance detection circuit that detects a distance to the subject, and the projector can project a captured image of the camera onto the projection plane. It is characterized by.

  By adopting such a configuration, even in an image taken with a camera, information on the projection destination is appropriately reflected to enable beautiful photo reproduction under any conditions.

  According to a fourth aspect of the present invention, in the invention according to the third aspect, the image switching means switches the image to be projected based on information in the vertical and horizontal directions at the time of camera shooting.

  With such a configuration, it is possible to switch and display the projection image as appropriate according to the size of the projection surface.

  According to a fifth aspect of the present invention, in the first aspect of the invention, the uniform part judging means for judging a change in the unevenness on the projection surface detected by the projection surface detecting means, and the uniform part judgment. Image switching means for reducing and projecting an image on a portion on the projection plane that has been determined by the means to have no unevenness on the projection plane.

  With such a configuration, even if there is a portion that is not a uniform surface with respect to the projection surface at the projection destination, it is possible to reproduce the photograph on a uniform surface while avoiding that portion.

  The invention according to claim 6 is the invention according to claim 5, further comprising a camera that is connectable to the projector and that captures the image to be projected. The camera is configured to include an image sensor that captures a subject and a distance detection circuit that detects a distance to the subject, and the projector can project a captured image of the camera onto the projection plane. It is characterized by.

  By adopting such a configuration, even in an image taken with a camera, information on the projection destination is appropriately reflected to enable beautiful photo reproduction under any conditions.

  According to a seventh aspect of the invention, in the sixth aspect of the invention, the image switching means switches the image to be projected based on information in the vertical and horizontal directions at the time of camera shooting.

  With such a configuration, it is possible to switch and display the projection image as appropriate according to the size of the projection surface.

  According to an eighth aspect of the present invention, in the first aspect of the invention, a color determination unit that determines a color change on the projection plane detected by the projection plane detection unit, and the projection plane detection unit. Uniform portion determining means for determining a change in unevenness on the projection surface detected by the above, a portion on the projection surface determined by the color determining means that there is no color change, and the uniform portion determining means Image switching means for reducing and projecting an image on a portion on the projection surface that is determined to have no unevenness on the projection surface is further provided.

  By adopting such a configuration, even if there is a color different from the projection surface at the projection destination or there is a portion that is not a uniform surface with respect to the projection surface, it is possible to reproduce a photograph by avoiding these different portions. .

  The invention according to claim 9 is the invention according to claim 8, further comprising a camera that is connectable to the projector and that captures the image to be projected. The camera is configured to include an image sensor that captures a subject and a distance detection circuit that detects a distance to the subject, and the projector can project a captured image of the camera onto the projection plane. It is characterized by.

  By adopting such a configuration, even in an image taken with a camera, information on the projection destination is appropriately reflected to enable beautiful photo reproduction under any conditions.

  According to a tenth aspect of the present invention, in the invention according to the ninth aspect, the image switching means switches the image to be projected based on information in the vertical and horizontal directions at the time of camera shooting.

  With such a configuration, it is possible to switch and display the projection image as appropriate according to the size of the projection surface.

  According to an eleventh aspect of the present invention, there is provided an image pickup device that picks up an image of a subject, a projection image forming unit that forms an image picked up by the image pickup device as a projection image to be projected onto a projection surface, and a state of the projection surface And a control means for switching and controlling the projected image according to the state of the projection plane detected by the projection plane detection means.

  By adopting such a configuration, it is possible to appropriately reflect the projection destination information and to reproduce a beautiful photograph under any conditions.

  A twelfth aspect of the present invention according to the eleventh aspect of the present invention further comprises color determination means for determining a change in color on the projection plane detected by the projection plane detection means according to the eleventh aspect of the invention. The means is characterized in that the image is reduced and projected onto the portion on the projection plane determined as having no color change by the color determination means.

  With such a configuration, even if there is a color different from the projection surface at the projection destination, it is possible to reproduce a photograph while avoiding the different color portion.

  According to a thirteenth aspect of the invention, in the twelfth aspect of the invention, the control means switches the projected image based on information in the vertical and horizontal directions at the time of subject imaging.

  With such a configuration, it is possible to switch and display the projection image as appropriate according to the size of the projection surface.

  The invention described in claim 14 is the invention described in claim 11, further comprising a uniform part determining means for determining a change in unevenness on the projection surface detected by the projection surface detecting means, The control means is characterized in that the image is reduced and projected onto a portion on the projection plane, which is determined by the uniform part determination means to be free from unevenness.

  With such a configuration, even if there is a portion that is not a uniform surface with respect to the projection surface at the projection destination, it is possible to reproduce the photograph on a uniform surface while avoiding that portion.

  According to a fifteenth aspect of the invention, in the invention according to the fourteenth aspect, the control means switches the image to be projected based on information in the vertical and horizontal directions when the subject is imaged.

  With such a configuration, it is possible to switch and display the projection image as appropriate according to the size of the projection surface.

  According to a sixteenth aspect of the present invention, in the invention according to the eleventh aspect, a color determination unit that determines a change in color on the projection plane detected by the projection plane detection unit, and the projection plane detection unit. A uniform portion determining unit that determines a change in unevenness on the projection surface detected by the control unit, wherein the control unit is a portion on the projection surface that is determined to have no color change by the color determining unit; In addition, the image is reduced and projected onto a portion on the projection plane, which is determined to have no unevenness by the uniform portion determination means.

  By adopting such a configuration, even if there is a color different from the projection surface at the projection destination or there is a portion that is not a uniform surface with respect to the projection surface, it is possible to reproduce a photograph by avoiding these different portions. .

  According to a seventeenth aspect of the invention, in the sixteenth aspect of the invention, the control means switches the projected image based on information in the vertical and horizontal directions at the time of subject imaging.

  With such a configuration, it is possible to switch and display the projection image as appropriate according to the size of the projection surface.

  According to the present invention, it is possible to provide a projector system capable of reproducing beautiful photographs regardless of the state of the projection surface.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing an electrical system configuration of a projector system according to an embodiment of the present invention.

  In FIG. 1, the projector system includes a camera 30 and a projector 40.

  The camera 30 includes a photographing lens 11 for photographing the subject 10, an image sensor 12, an image processing circuit 13, a recording unit 14, a zoom control unit 17, a lens position control (LD) unit 18, and a distance. The detection circuit 19, the focus control unit 21, the distance calculation unit 22, the photographing information recording unit 23, the sequence controller 24, and the operation switch 26 are configured.

  The projector 40 includes a display control unit 31, a projection image forming unit 32, a projection lens 33, a projection light source 34, a light source control unit 35, and a distance detection unit 37.

  In the camera 30, the subject image formed on the image sensor 12 through the photographing lens 11 is converted into an electrical or digital image signal by the image sensor 12 and the image processing circuit 13 as input means. Is done. The electrical signal converted here is recorded in the recording unit 14.

  The photographic lens 11 can be zoomed by the zoom control unit 17 in order to obtain a subject image in a good state intended by the photographer, and the focus position is controlled by the lens position control unit 18. It has become. The zoom magnification of the photographing lens 11 is changed by operating the operation switch 26 or the like operated by the photographer.

  The focus position of the photographic lens 11 may be controlled based on the output of the distance detection circuit 19 by the focus control unit 21, or based on the contrast information of the image data obtained from the output of the image processing circuit 13. It may be controlled to be higher. The imaging element 12, the image processing circuit 13, and the distance detection circuit 19 constitute a projection plane detection unit for detecting the state of a monitor range (projection plane) described later.

  In this manner, the sequence controller 24 that detects the photographer's operation and sequentially controls each function, the focus control unit 21 that is a means for calculating and determining various information based on signals obtained from each function, distance calculation The unit 22, the photographing information recording unit 23, and the like are configured by a microcomputer 25. Incidentally, the uniform part determining means described later is also constituted by this sequence controller 25.

In the case of contrast type focusing, distance information is calculated by the distance calculation unit 22 from the zoom position and the position of the focusing lens, and information at the time of shooting is calculated from the zoom position and the calculated distance information. This is the subject distance L _c , the focal length f _c of the photographing lens 11, the usage range y _c of the image sensor 12, etc. in FIG. Such information is recorded in the photographing information recording unit 23.

On the other hand, in the projector 40, the output of the image processing circuit 13 in the camera 30 and the information of the photographing information recording unit 23 are used by the display control unit 31 which is a control unit and an image switching unit to project the image. Each unit in the projector 40 such as the lens 33, the projection image forming unit 32, and the light source control unit 35 is controlled. Thus, the effective part y _p and the zoom magnification f _p and the projection image forming unit 32 of the projection lens 33, the brightness or the like of the projection light source 34 is controlled.

Further, in the projector 40, distance information L _p from the projector 40 to the wall surface or screen 42 projected can be detected by a distance detection unit 37 that is an input means. Therefore, the display control unit 31 may focus the projection lens 33 based on this information. In the figure, reference numeral 43 denotes an image representing a subject image projected on the projection surface 42 such as a wall surface or a screen.

  FIG. 2 is a flowchart for explaining an operation sequence at the time of photographing by the camera configured as described above.

  This photographing operation is performed under the control of the sequence controller 24.

First, in step S1, the zoom position and the imaging surface size y _c at the time of shooting are determined. Next, in step S2, focusing is performed. The distance information L _c is detected from the result of this focusing.

When the captured image processing is performed in step S3, each information of the results (f _c , y _c , L _c ) obtained in steps S1 and S2 described above is recorded in the captured information recording unit 23 in subsequent step S4. The Further, in step S5, an image based on these photographing information is recorded in the recording unit 14.

  The image recorded in the recording unit 14 may be recorded in the photographing information recording unit 23 at the same time as the photographing information described above.

  In the projector system having such a configuration, a personal computer 45 may be used as an interface between the camera 30 and the projector 40 as shown in FIG. In this case, the display control unit 31 of FIG. 1 may be provided in the personal computer 45.

  Further, the recording unit 14 in the camera 30 may be taken out and inserted into the personal computer 45 so that the information is controlled from this information.

  Further, as shown in FIG. 3B, the camera 30 and the projector 40 may be directly connectable. Also in this case, image information and shooting information may be input to the recording unit 14, and only the memory of the recording unit 14 may be inserted into the projector 40 to perform image projection control reflecting the shooting information.

  Further, if the light source unit, which has been apt to increase in size in the past, is reduced in size by an LED or the like, the projector 40 can be incorporated in the camera 30 as shown in FIG. In this case, it is conceivable that the optical system (projection lens) 33 of the projector 40 is installed on a part of the body of the camera 30 so that the photographing to the projection can be performed with one device.

  All of the techniques of the present invention can cover such deformation.

  FIG. 4 is a diagram illustrating a state of the wall surface on which the projector 40 according to the present embodiment projects an image.

  Although offices and schools have places where large wall surfaces can be taken, in general homes and the like, it is difficult for a flat surface having a sufficiently large area to project a projector image. That is, taking the example shown in FIG. 4, there are windows 50, curtains 51, televisions 52, frame 53, etc. in the room, and only the part 42 where these do not exist is a wall surface suitable for the projection of the projector. For example, an image projected on the curtain 51 or the television 52 is distorted due to a change in the projection distance. Further, the color of the image projected on the frame 53 changes, and the image projected on the window 50 becomes invisible.

  From this situation, in the present embodiment, an appropriate image projection unit is found and projection suitable for that portion is performed. By such a method, the user simply installs the projector 40 facing the wall surface appropriately, and the projector 40 irradiates the image on the portion where the projection is effective. Will be able to enjoy.

  That is, in the first embodiment, since the projector 40 displays a photographed image of the camera 30, the two can be effectively connected to other than the image information so that signals can be transmitted and received. And make effective use of the distance detection function. Alternatively, the function of the camera 30 may be provided in a dedicated projector.

  That is, the imaging device 12 of the camera 30 can observe the state of the wall surface by monitoring the area 46 shown in FIG. Since the image sensor 12 is composed of an area sensor and can detect colors, it is possible to determine which part has a uniform wall surface in terms of three-dimensionality and color distribution.

  If the effective area 41 that is a uniform projection plane is determined, it is possible to prevent the image 43 from being projected beyond the area as shown in FIG. 5A. That is, as shown in FIG. 5B, the image 43 is reduced so that it is within the effective range so that the entire image can be enjoyed.

  Further, even if the image is protruded from a horizontally long image as shown in FIG. 5A, if it is a vertically long image as shown in FIG. 5C, it enters the effective area 41, so it is not reduced. Projected on. Such vertical and horizontal information about the image is also included in the shooting data sent from the camera 30.

Furthermore, as shown in FIG. 5 (a), whether the image 43 protrudes from the effective area 41 can be determined from the height and width h _p of the projected image shown in FIG. In other words, the value h _p is the focal length f _p of the projection lens 33, the size of the projection image forming unit 32 of the projector 40 and y _p, and the distance of the projection and _{L p, h p = L p} × (y _p / f _p ).

In the above-described example, the vertical size of the screen has been described, but the same idea may be applied to the horizontal direction. That may be such that the value h _p falls within the effective area 41. The height and width of the effective area 41 can be obtained from the focal length f _c of the photographing lens 11, the size y _c of the image sensor 12, and the distance L _c . That is, when L _c ≈L _p , the relationship is h = L _p × (y _c / f _c ). Therefore, if only the portion y _c1 in the size y _c of the image sensor 12 is effective without any color change or contrast change, one side of the effective area 41 is h ₁ = L _p × (y _c1 / It can be calculated as f _c ).

Thus, the width h ₁ of the effective area 41 is required, may be the h _p is placed in this, the projector 40 controls the focal length f _p such width y _p and the projection lens 33 of the image forming region Thus, control is performed so that h _p <h ₁ .

  At this time, taking into account the image photographing information, the projected image is set within the strict side of the effective area 41 (for example, in the horizontal direction in the examples of FIGS. 5A to 5C).

  FIG. 6 is a flowchart for explaining the projection image reproduction operation.

  This reproduction operation is performed under the control of the display control unit 31.

  That is, in step S11, the focal length and distance information captured on the camera 30 side are detected by the display control unit 31. Next, in step S12, image information such as the vertical and horizontal composition recorded in the recording unit 14 or the photographing information recording unit 23 is obtained. Further, in step S13, an image based on the acquired image information is projected onto a projection surface 42 such as a wall surface or a screen by controlling the zoom magnification and image forming area of the projector 40.

  As described above, it is possible to provide a system capable of performing optimum image reproduction only by placing a projector.

  By the way, when the information of the camera is used effectively, the alignment of the camera and the projector is important. For example, by adopting a configuration as shown in FIG. 7, it is possible to provide a system that automatically detects the effective area simply by directing the camera unit and the projector unit in substantially the same direction.

  In the present embodiment, the projector system 55 includes a camera unit and a projector unit. The projector system 55 cancels even if there is a difference between the projection direction of the projector and the orientation of the camera for the wall surface monitor by projecting the reference signal.

  That is, as shown as a reference point 47 in FIG. 7, the projector system 55 is provided with a reference signal output unit 49 having a function of projecting a reference image to the center of the screen. Then, the uniform surface determination unit 38 accurately determines the direction in which the projector is facing and the positional relationship between the uniform surfaces depending on the position of the image sensor 12 of the monitor camera where the reference point 47 can be detected. can do.

  That is, on the monitor camera side, the camera can determine from the monitor range 46 a portion having no contrast or color change from the image signal obtained from the image sensor 12 via the photographing lens 11. In the uniform surface determination unit 38, the output of the image element 12 is used as a result of determining the color and brightness by the image processing circuit 13, and a portion suitable for image projection is determined by the projector.

  When the camera has the distance detection circuit 19, the distance distribution may be determined from this signal, and the unevenness may be taken into account.

  The camera unit has an image memory 13a, and an image recorded in the image memory 13a is projected as shown in FIGS. 5B and 5C. The projection image forming unit 32 of the projector is controlled by the recorded image signal.

  However, at this time, the projection image is not formed over the entire area of the projection image forming unit 32, but is formed in a projected form only on the surface determined to be a uniform surface by the uniform surface determination unit 38. To be controlled. The projector can project onto the portion of the image 35 shown in FIG. 7, but the images are collected only in the portion corresponding to the uniform surface.

  FIG. 8 is a flowchart for explaining the operation of the reproduction method control for performing such control. This operation is performed under the control of the display control unit 31.

  In this flowchart, first, in step S21, a reference point signal is projected from the projector onto the portion that becomes the projection surface. Next, in step S22, imaging by the camera unit (first time) is performed. Further, in step S23, the reference point signal is not projected from the projector, and in the subsequent step S24, the second imaging is performed.

  In this way, when the camera unit performs imaging twice, in step S25, the difference between the two imaging results is used to determine the reference signal projection position with respect to the portion as possible as the projection plane. Thereby, it is possible to detect which direction the projector is facing.

In step S26, a uniform portion as much as possible to be a projection plane is determined from the image data I _M2 when the reference point signal is not projected. Next, in step S27, the distance detection circuit 19 determines whether or not there is unevenness in a portion that appears uniform in the image data. In step S28, the uneven portion on the projection surface is excluded.

  In this way, in step S29, a portion where there is no color change or distance change is determined as an effective projection area. In step S30, image projection is performed toward the effective projection area determined in step S29. However, at this time, the image is reduced so as to be within the effective projection area (effective area 41). Thereafter, in step S31, a photographic image is projected as shown in FIG.

  At this time, not only the projection image is reduced, but also control is performed such that the image is placed at a location offset from the center of the projectable range 48. This image reduction is performed as follows.

  One is controlled by using the projection lens 33 as a zoom lens. For example, the projection lens 33 set at a position as shown in FIG. 9A is controlled to be shifted to the long focal point (T) side as shown in FIG. 9B. As a result, the image 43a shown in FIG. 9A becomes a reduced image 43b as shown in FIG. 9B.

  The other is controlled such that the image formed in the projection image forming unit 32 is reduced. As a result, the image on the projected image forming unit 32 formed as shown in FIG. 10A is formed as a reduced image 32a at the center thereof as shown in FIG. 10B. Alternatively, as shown in FIG. 10 (c), the reduced image 32a may be formed in such a way that it is not reduced to the central portion but is brought to any one of the four corners.

  For example, as shown in FIG. 11A, the reduced image 32a is obtained by adding four pixels 32b of the image formed in the projection image forming unit 32 and reducing the image as shown in FIG. 11B. It is formed by entering as one pixel 32d in the image area 32c.

  With such a configuration, as shown in FIG. 4, it is possible to provide a projector system capable of detecting an appropriate projection area and projecting an image with an optimum size onto the portion simply by pointing the projector to a wall surface. be able to.

  In the above-described embodiment, the camera that captures the projected image and the camera for controlling the projector are combined, but a dedicated camera may be built in the projector 40.

  Further, the brightness and color balance of the projected image may be controlled using other functions of the camera (photometry and white balance).

  As described above, it is possible to provide a photo display mode or a photo appreciation mode with a higher reproducibility effect by using a projector having a large degree of freedom in image size control.

It is a block diagram which shows the structure of the electric system of the projector system which concerns on 1st Embodiment of this invention. 2 is a flowchart for explaining an operation sequence at the time of shooting by the camera having the configuration of FIG. 1. It is the figure which showed the structural example of the projector system by this invention. It is the figure which showed the mode of the wall surface which the projector 40 in one Embodiment of this invention projects an image. It is a figure explaining the effective area 41 and the image 43 projected. 6 is a flowchart illustrating an image reproduction operation of the projector according to the embodiment of the present invention. It is a figure explaining the alignment of a camera and a projector. It is a flowchart explaining the operation | movement of the reproduction | regeneration method control of the projector system in one Embodiment of this invention. FIG. 10 is a diagram illustrating an example of image reduction, and is a diagram illustrating an example in which control is performed using a projection lens 33 as a zoom lens. FIG. 10 is a diagram illustrating another example of image reduction and is a diagram illustrating an example of controlling to reduce an image formed in a projection image forming unit 32; It is a figure explaining the formation method of the reduction | decrease image shown by FIG.10 (b).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Subject, 11 ... Shooting lens, 12 ... Image sensor, 13 ... Image processing circuit, 14 ... Recording part, 17 ... Zoom control part, 18 ... Lens position control (LD) part, 19 ... Distance detection circuit, 21 ... Focus Control unit, 22 ... Distance calculation unit, 23 ... Shooting information recording unit, 24 ... Sequence controller, 26 ... Operation switch, 30 ... Camera, 31 ... Display control unit, 32 ... Projection image forming unit, 33 ... Projection lens, 34 ... Projection light source 35 ... Light source control unit 37 ... Distance detection unit 40 Projector 41 ... Effective area 42 ... Projection plane 43 ... Image 46 ... Monitor range 55 Projector system

Claims (17)

A projector that forms and projects an image on a projection surface;
Projection plane detecting means for detecting the state of the projection plane;
Control means for switching and controlling the image to be projected according to the state of the projection plane detected by the projection plane detection means;
A projector system comprising: Color determination means for determining a change in color on the projection plane detected by the projection plane detection means;
Image switching means for projecting a reduced image on the portion on the projection plane determined by the color determination means to have no color change;
The projector system according to claim 1, further comprising: A camera that can be connected to the projector and captures the image to be projected;
The projection plane detection means is provided in the camera, and includes an image sensor that images a subject and a distance detection circuit that detects a distance to the subject.
The projector system according to claim 2, wherein the projector is capable of projecting a photographed image of the camera onto the projection surface.   4. The projector system according to claim 3, wherein the image switching means switches the image to be projected based on information in the vertical and horizontal directions at the time of camera shooting. Uniform part determination means for determining a change in unevenness on the projection surface detected by the projection surface detection means;
Image switching means for reducing and projecting an image on a portion on the projection surface that is determined by the uniform portion determination means to have no unevenness on the projection surface;
The projector system according to claim 1, further comprising: A camera that can be connected to the projector and captures the image to be projected;
The projection plane detection means is provided in the camera, and includes an image sensor that images a subject and a distance detection circuit that detects a distance to the subject.
6. The projector system according to claim 5, wherein the projector is capable of projecting an image captured by the camera onto the projection plane.   7. The projector system according to claim 6, wherein the image switching means switches the image to be projected based on information in the vertical and horizontal directions at the time of camera shooting. Color determination means for determining a change in color on the projection plane detected by the projection plane detection means;
Uniform part determination means for determining a change in unevenness on the projection surface detected by the projection surface detection means;
In the portion on the projection surface that has been determined that there is no color change by the color determination means, and the portion on the projection surface that has been determined by the uniform portion determination means to have no unevenness on the projection surface, Image switching means for reducing and projecting an image;
The projector system according to claim 1, further comprising: A camera that can be connected to the projector and captures the image to be projected;
The projection plane detection means is provided in the camera, and includes an image sensor that images a subject and a distance detection circuit that detects a distance to the subject.
The projector system according to claim 8, wherein the projector is capable of projecting an image captured by the camera onto the projection surface.   10. The projector system according to claim 9, wherein the image switching means switches the image to be projected based on information in the vertical and horizontal directions at the time of camera shooting. An image sensor for imaging a subject;
A projection image forming unit that forms an image captured by the imaging element as a projection image to be projected onto a projection plane;
Projection plane detecting means for detecting the state of the projection plane;
Control means for switching and controlling the image to be projected according to the state of the projection plane detected by the projection plane detection means;
A projector system comprising: Further comprising color determination means for determining a color change on the projection plane detected by the projection plane detection means;
12. The projector system according to claim 11, wherein the control unit projects an image on a portion on the projection plane that is determined to have no color change by the color determination unit.   13. The projector system according to claim 12, wherein the control means switches the image to be projected based on information in the vertical and horizontal directions when the subject is imaged. And further comprising a uniform part determining means for determining a change in unevenness on the projection surface detected by the projection surface detecting means,
12. The projector system according to claim 11, wherein the control unit projects the image on a portion on the projection plane that is determined to have no unevenness by the uniform part determination unit.   The projector system according to claim 14, wherein the control unit switches the image to be projected based on information in the vertical and horizontal directions when the subject is imaged. Color determination means for determining a change in color on the projection surface detected by the projection surface detection means; and uniform part determination means for determining a change in unevenness on the projection surface detected by the projection surface detection means. In addition,
The control means includes a portion on the projection surface determined to have no color change by the color determination means, and a portion on the projection surface determined to have no unevenness change by the uniform portion determination means. The projector system according to claim 11, wherein the image is reduced and projected.   17. The projector system according to claim 16, wherein the control means switches the image to be projected based on vertical and horizontal information at the time of subject imaging.

Images