JP2007156149A - Projecting device and projecting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a projecting device and a projecting method for projecting an image with high presence by recognizing the kind of an image projected by another projecting device and controlling the kind of the image to be projected according to the kind. <P>SOLUTION: The projecting device has an imaging unit which images a specified imaging area including a portion of an image projected by a projection unit, has an image information acquiring unit which acquires image information specifying the kind of the image from a marker made to correspond to the image picked up by the imaging unit and projected in the imaging area, and further has an image control unit which controls the kind of the image that the projecting unit projects according to the image information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a projection apparatus having a projection unit that projects an image using an optical system, and a projection method.

  The conventional projection apparatus is configured to recognize the position of the pointer on the screen at the time of presentation and to display a marking on a portion corresponding to the light spot position of the recognized pointer (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 2003-36142 (FIG. 1)

  The conventional projection apparatus is configured to recognize the position of the light spot of the pointer on the screen and display the marking on the portion corresponding to the position. It was difficult to display an image.

  The present invention has been made to solve the above-described problems, and is a projection capable of recognizing the type of image projected by another projection apparatus and controlling the type of image projected according to the type. An apparatus and a projection method are obtained.

  A projection apparatus according to the present invention includes a projection unit that projects a first image using an optical system, an imaging unit that captures a predetermined imaging region including a part of an image projected by the projection unit, and an imaging unit that captures an image. A determination unit that determines whether or not a second image other than the first image is included in the imaging region to be performed, and when the determination unit determines that the second image is included, the second image In a projection apparatus having an image information acquisition unit that acquires image information for specifying an image type, and an image control unit that controls the type of a first image projected by the projection unit based on the image information. The second image captured by the unit includes a marker associated with the image, and the determination unit includes a recognition unit that recognizes the type of the marker in the imaging region, and the marker recognized by the recognition unit The image information is acquired based on the type of Than is.

  The present invention has an image information acquisition unit that acquires image information for specifying the type of image from a marker associated with the image, thereby recognizing the type of image projected by another projection apparatus. It becomes possible. For this reason, it is possible to control the type of image to be projected according to the recognized type of image.

Embodiment 1 FIG.
FIG. 1 shows a configuration diagram of a projection apparatus according to Embodiment 1 for carrying out the present invention. As shown in FIG. 1, the projection apparatus according to the first embodiment includes a projection unit 1 that projects an image onto a projection object such as a screen (not shown) using an optical system, and an image that the projection unit 1 projects. An imaging unit 2 that captures a predetermined imaging region including part or all of the image capturing unit 2 and a recognition unit 3a that recognizes the marker 12 associated with the image. The imaging unit 2 captures images based on the recognition result of the recognition unit 3a. A determination unit 3 that determines whether or not an image projected by another projection device is included in the image area that has been obtained, an image information acquisition unit 5 that acquires image information based on the marker 12 recognized by the recognition unit 4, and a projection unit 1 includes an image control unit 6 that controls the type of image to be projected.

  Next, the operation of the projection apparatus configured as described above will be described with reference to FIG. FIG. 2 is a flowchart showing the operation of the projection apparatus according to this embodiment.

  First, the first image 10 is projected from the projection unit 1 onto a projection object such as a screen as shown in the upper diagram of FIG. 3 (st101). At the same time, the second image 11 is projected onto the projection object from another projection apparatus. Here, the description will be made assuming that the first image 10 is a passenger car and the second image 11 is a truck. The second image 11 has predetermined markers 12 at the four corners of the image indicating that the image is a track. As these markers 12, for example, a one in which a pattern is embedded, such as a one-dimensional or two-dimensional barcode, can be used. By analyzing this pattern, it can be seen that the marker 12 is a marker associated with the track. Although the case where the markers 12 are attached to the four corners of each image will be described here, the position and number of the markers 12 can be arbitrarily determined, and the present invention is not limited thereto. In addition, the marker 12 is not necessarily displayed together with the image, and may be configured to display an adjustment image with the marker 12 added at regular intervals.

  The imaging unit 2 captures an image of a predetermined imaging area 20 including part or all of the first image 10 (st102). The relationship between the first image 10 and the imaging region 20 is shown in FIGS. In FIG. 4, the imaging region 20 is a region including the entire first image 10, but may be a region including only a part of the first image 10 as illustrated in FIG. 5. Further, the positional relationship between the projection unit 1 and the imaging unit 2 is fixed, and when the entire projection apparatus is moved and the projection position of the image projected by the projection unit 1 changes, the imaging region captured by the imaging unit 2 is also projected. It changes according to the position. Further, the projection position and the imaging area may be configured to be changed by an external operation without moving the entire projection apparatus.

  Next, an operation when the first image 10 and the second image 11 overlap will be described. As shown in the lower part of FIG. 3, the projection positions of the projection apparatus projecting the first image 10 and the projection apparatus projecting the second image 11 are changed, and the first image 10 and the second image 11 are changed. Consider a case where the image 11 overlaps each other (st103). At this time, when the marker 12 exists in the imaging region 20, the recognition unit 3a recognizes the marker 12 (st104). When the recognition unit 3a recognizes the marker 12, the determination unit 3 determines that the second image 11 other than the first image 10 is included in the imaging region 20, and the marker 12 recognized by the recognition unit 3a. Is transmitted to the image information acquisition unit 4 (st105). In this case, since the marker 12 attached to the second image exists in the imaging region 20, the recognition unit 3a recognizes the marker 12, and the determination unit 3 recognizes the marker 12 recognized by the recognition unit 3a. Information is transmitted to the image information acquisition unit 4.

  Moreover, even if the determination part 3 is a case where the recognition part 3a recognizes the marker 12, it can also determine with the 2nd image 11 not being contained. In this case, what is necessary is just to determine whether the 2nd image is contained based on the position of the marker 12 in the imaging region 20 which the recognition part 3a recognized.

  The image information acquisition unit 4 acquires image information for specifying the information of the image corresponding to the marker 12 based on the information of the marker 12 transmitted from the determination unit 3 (st106). For example, when the marker 12 is a barcode, the type of the barcode is analyzed and image information is acquired. Now, since the marker 12 transmitted to the image information acquisition unit 4 is associated with the second image 11, that is, the image of the track, the second image is a track by analyzing the marker 12. Image information can be acquired. This analysis may be performed not by the image information acquisition unit 4 but by another device connected to the imaging device via the network 6. In other words, the image information acquisition unit 4 transmits the information of the marker 12 transmitted from the determination unit 3 to another device (for example, a PC or the like) connected to the projection device via the network 6, and the transmission destination device. In this case, the marker 12 may be analyzed. In this case, image information indicating that the marker 12 is a marker associated with the track is transmitted to the image information acquisition unit 4.

  Furthermore, a projection device that projects the first image 10 and a projection device that projects the second image 11 may be connected via the network 6. The network 6 at this time may be a public network, or may be one-to-one communication such as infrared rays. With this configuration, the image information acquisition unit 4 can acquire image information from the projection device that projects the second image 11. With such a configuration, the marker 12 attached to the second image 11 may not include information for specifying this image.

  Next, the image control unit 5 controls the type of image that the projection unit 1 projects next based on the type of image currently projected by the projection unit 1 and the image information acquired by the image information acquisition unit 4 (st107). ). Here, since the type of the first image 10 currently projected by the projection unit 1 is a passenger car, and the image information acquired by the image information acquisition unit 4 is a truck, the image control unit 5 is shown in the lower diagram of FIG. As shown, the projector 1 is controlled to project a broken passenger car image. At this time, the method for controlling the first image 10 may be set in advance by the user. For example, when the first image 10 is a passenger car and the image information acquisition unit 4 acquires image information of an image corresponding to an object larger than the passenger car, the broken passenger car image is smaller than the passenger car. When image information corresponding to an image corresponding to an object is acquired, the current image may be set to be projected. There may be a plurality of types of images to be controlled. For example, when an image of a broken passenger car is projected, it may be configured to project either a greatly broken passenger car or a small broken passenger car.

  When the projection unit 1 when the image control unit 5 controls the type of the first image 10 newly projects, for example, a database in which a plurality of image data is recorded is installed in the projection device. You may make it the structure read from a database. Furthermore, even when there is no database in which image data is recorded, the image data of the image related to the image information acquired by the image information acquisition unit 4 is acquired via the network 6. May be. In this case, the image control unit 5 acquires the image data of the broken passenger car image from the image information acquisition unit 4 in order to control the projection unit 1 to project the broken passenger car image. To request. When receiving a request from the image control unit 5, the image information acquisition unit 4 acquires image data of a broken passenger car image from an external device via the network 6. Thereafter, the image control unit 5 may control the projection unit 1 so as to project an image of the image data acquired by the image information acquisition unit 4. By adopting such a configuration, it is possible to control the type of the first image 10 projected by the projection unit 1 without having an image data database therein.

  Furthermore, in this embodiment, the second image 11 has been described as being projected from another projection device. However, if the second image 11 is provided with a marker 12 that identifies this image, It is not limited to such a form. That is, the second image 11 may be as shown in the drawing.

  In the projection apparatus configured as described above, it is possible to control the type of image to be projected according to the recognized type of image. Therefore, there is an effect that it is possible to project an image with higher presence.

Embodiment 2. FIG.
In the projection apparatus according to the first embodiment, the first image 10 projected by the projection unit 1 is configured not to have a marker associated with the image, but the projection unit 1 projects the image. You may make it the structure which attaches the marker 13 also to the 1st image 10. FIG. Other configurations are the same as those of the projection apparatus described in the first embodiment.

  By applying the projection apparatus having such a configuration to the projection apparatus that projects the first image 10 and the projection apparatus that projects the second image 11, each projection apparatus projects images projected by other projection apparatuses. Since the type can be recognized, it is possible to obtain a projection system that controls both the first image 10 and the second image 11 and changes the type of the image.

  For example, as shown in FIG. 6, the first image 10 is a girl image, the second image 11 is a boy image, and the first image 10 includes a marker 13 associated with the image. The second image 11 is provided with a marker 12 associated with this image. When the projection position from the projection device is changed and the first image 10 and the second image 11 overlap each other, each projection device projects another projection device as in the first embodiment. The image information of the existing image is acquired, and the type of image to be projected is controlled based on this image information. The first image 10 can be an image of a laughing girl and the second image 11 can be an image of a laughing boy.

  In each of the projection apparatuses in the projection system according to the second embodiment, the marker existing in the imaging region 20 is the marker 13 attached to the image projected by itself, or another projection apparatus projects it. It is necessary to determine whether the marker 12 is attached to the image. For example, when the marker is composed of a barcode, it is possible to determine whether or not the marker is attached to the image projected by the barcode type. In this case, the type of barcode attached to the image projected by itself may be stored in advance. In the case where the types of barcodes are the same, the luminance value of the marker of each image may be changed. In this case as well, the brightness value of the marker attached to the image projected by itself may be stored in advance.

Embodiment 3 FIG.
In the projection apparatus according to the above-described embodiment, the example in which the type of image projected by the projection unit 1 is controlled based on the marker type and position information has been described. A case will be described in which the type of image to be projected is controlled based on the motion information. Note that the projection apparatus according to the third embodiment is configured in the same manner as the projection apparatus described in the first embodiment, except where specifically described.

  For example, as shown in FIG. 7, there is a road map 31 corresponding to the second image 11 in the first embodiment, and a plurality of types of markers are attached in the road map 31. The road map 31 may be a figure projected from the projection apparatus using an optical system, or may be a sketch.

  Next, a car image 32 corresponding to the first image 10 in the first embodiment is projected on the road map 31 from the projection apparatus of the third embodiment, and this image is road A on the road map 31. A case of moving from left to right will be described.

  First, a marker 33 indicating that this road is prohibited from entering from the right is attached above the road A. Further, the position of the marker 33 is not limited to the upper side as long as it is in the vicinity of the road A. Also, the recognition accuracy can be further improved by adding a plurality of markers instead of one. When the projection position of the image 32 is moved from the left end of the road map 31 to the right and the marker 33 is included in the imaging region 20 of the imaging unit 2, the recognition unit 3a recognizes the type and position of the marker 33, and the determination unit 3 transmits the marker 33 recognized by the recognition unit 3 a to the image information acquisition unit 4, and transmits the position information of the marker 33 in the imaging region 20 to the image control unit 5. In this case, since the position information of the marker 33 is first included in the imaging area 20, position information indicating that the marker 33 exists at the right end of the imaging area 20 is transmitted to the image control unit 5.

  Based on the information of the marker 33 transmitted from the determination unit 3, the image information acquisition unit 4 acquires image information for specifying image information corresponding to the marker 33, and sends this image information to the image control unit 5. And send. In this case, the image information acquisition unit 4 acquires image information indicating that the road A is prohibited from entering from the right side, and transmits the acquired image information to the image control unit 5. The image control unit 5 controls the type of image projected by the projection unit 1 based on the position information of the marker 33 transmitted from the determination unit 3 and the image information transmitted from the image information acquisition unit 4. In this case, it can be seen from the position information of the marker 33 from the determination unit 3 that the marker 33 is at the right end of the imaging region 20 and the road A is prohibited from entering from the right by the image information from the image information acquisition unit 4. Therefore, based on these pieces of information, the image control unit 4 performs control so that the type of image projected by the projection unit 1 is the entry prohibited image 34.

  Similarly to the above example, when the car image 35 enters the road A from the left, the image control unit 4 informs the position information that the determination unit 3 to the marker 33 exists at the left end of the imaging region 20. Is sent. Therefore, when entering the road A from the left, the image control unit 5 controls the projection unit 1 to project the car image 35 as it is. Needless to say, the control method of the image control unit 4 based on the marker position information and image information is set in advance.

  Further, the position information transmitted from the determination unit 3 to the image control unit 4 may be information on a change in the position of the marker 33 instead of the position of the marker 33 in the imaging region 20 itself. In this case, the recognition unit 3a recognizes and records the position of the marker 33 for each time, records the time change of the marker 33 from these pieces of information, and the determination unit 3 performs image control using the time change as position information. What is necessary is just to transmit to the part 5. For example, the two-dimensional position of the marker 33 in the imaging region 20 is recognized and recorded every predetermined time using the x coordinate (the right end is the maximum) and the y coordinate (the upper end is the maximum), and the difference between them is determined by the position. What is necessary is just to transmit as information. In this case, since the road A is prohibited to enter from the right on the road A, if the difference in the x coordinate is positive, the difference in the x coordinate may be negative so as to project an entry prohibited image. For example, the projection unit 1 may be controlled so as to project a car image as it is.

  As described above, the imaging apparatus according to this embodiment is configured to transmit the information on the marker position recognized by the recognition unit 3a and the change in the marker position to the image control unit 5 as position information. There is an effect that the type of image to be flexibly projected can be changed.

It is a block diagram of the projection apparatus which shows Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the projection apparatus of this invention. It is a figure which shows the positional relationship of the 1st image and 2nd image of this invention. It is a figure which shows the positional relationship of the 1st image and imaging region of this invention. It is a figure which shows the positional relationship of the 1st image and imaging region of this invention. It is a projection view which shows Embodiment 2 of this invention. It is a projection view which shows Embodiment 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Projection part, 2 Imaging part, 3 Determination part, 3a Recognition part, 4 Image information acquisition part, 5 Image control part

Claims (5)

A projection unit that projects the first image using an optical system;
An imaging unit for imaging a predetermined imaging region including a part of an image projected by the projection unit;
A determination unit that determines whether or not a second image other than the first image is included in an imaging region captured by the imaging unit;
When the determination unit determines that the second image is included, an image information acquisition unit that acquires image information for specifying the type of the second image;
An image control unit that controls a type of the first image projected by the projection unit based on the image information;
In a projection apparatus having
The second image captured by the imaging unit includes a marker associated with the image,
The determination unit includes a recognition unit that recognizes the type of the marker in the imaging region, and acquires the image information based on the type of marker recognized by the recognition unit. The recognition unit recognizes the position of the marker in the imaging region, and determines whether or not the second image is included based on the position of the marker recognized by the recognition unit. The projection apparatus according to 1. The projection apparatus according to claim 1, wherein the image information acquisition unit acquires the image information via a network. The image information acquisition unit acquires image data of an image related to the image information via a network,
4. The projection apparatus according to claim 2, wherein the control unit controls the projection unit to project an image of the image data acquired by the image information acquisition unit. 5. A projecting step of projecting a first image in a projecting unit that projects an image using an optical system;
An imaging step of imaging a predetermined imaging area including a part of an image projected by the projection unit;
A determination step of determining whether or not a second image other than the first image is included in an imaging region captured by the imaging unit;
If it is determined that the second image is included in the determination step, an image information acquisition step for acquiring image information for specifying the type of the second image;
An image control step of controlling the type of the first image projected by the projection unit based on the image information;
A projection method comprising:
The second image captured by the imaging unit includes a marker associated with the image,
The determination step includes a recognition step of recognizing the marker type in the imaging region, and the image information acquisition step acquires the image information based on the marker type recognized in the recognition step. Projection method.

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