JP2013005237A - Projection display device, portable device, projection display method, and projection display program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projection display device etc. capable of easy acquisition of a satisfactory viewing environment though there are many viewers.SOLUTION: The projection display device, that is a portable device 1 which projects light 15b and displays an image on a surface for projection, comprises an image database 12 for storing images; an acceleration sensor 21 and a tilt information processing unit 13 for detecting the tilt of the portable device 1; an operation pattern determination part 41 which determines, on the basis of the detected tilt, the operation pattern of an image to be displayed on the surface for projection; an image processing part 14 for performing image processing corresponding to the determined operation pattern, on the images stored in the image database 12; and a projection part 15 which projects light for displaying the processed image on the surface for projection.

Description

  The present invention relates to a projection display device, a portable device, a projection display method, and a projection display program. In particular, the present invention relates to a projection display device that projects light and displays an image on a projection surface.

  2. Description of the Related Art Conventionally, when viewing photos stored on a single mobile phone at a place where multiple people are gathering, turning the mobile phone to view the photos. In the case of a mobile phone equipped with a projector function, a photograph is projected on a wall, ceiling, or table.

  Conventionally, as a device for projecting a photograph on a table, an image obtained by rotating an input image by a first angle and an image rotated by a second angle are combined into one screen, and an output image of this one screen is projected. Is known (see, for example, Patent Document 1). Thereby, the visibility of a plurality of viewers surrounding the table is improved.

JP 2010-237347 A

  However, in the conventional projection display device, two images with different angles (for example, opposite directions) are displayed on the screen on which the output image is projected. Therefore, when three or more viewers view the screen, the correct orientation is displayed. You may not be able to view images such as photos. Thereby, a favorable viewing environment cannot be obtained. Further, there is no degree of freedom in the way of projection, and appropriate projection according to the situation could not be performed.

  The present invention has been made in view of the above-described conventional circumstances, and can provide a projection display device, a portable device, a projection display method, and a projection display that can easily obtain a good viewing environment even when there are many viewers. The purpose is to provide a program.

  The projection display device of the present invention is a projection display device that projects light and displays an image on a projection surface, an image storage unit that stores an image, and an inclination detection unit that detects an inclination of the projection display device; , An operation pattern determination unit that determines an operation pattern of an image displayed on the projection surface based on the inclination detected by the inclination detection unit, and image processing corresponding to the operation pattern determined by the operation pattern determination unit An image processing unit for the image stored in the image storage unit, a projection unit for projecting light for displaying an image subjected to image processing by the image processing unit on the projection surface, Is provided.

  According to this configuration, a good viewing environment can be easily obtained even when there are many viewers. In addition, by changing the operation pattern, it is possible to easily change the way of projection, and it is possible to perform appropriate projection according to the situation.

  The projection display method of the present invention is a projection display method in a projection display device that projects light from a projection unit and displays an image on a projection surface, the step of detecting the inclination of the projection display device, An image stored in an image storage unit for storing an image, a step of determining an operation pattern of an image displayed on the projection surface based on the detected inclination, and image processing corresponding to the determined operation pattern And a step of projecting light from the projection unit for displaying the image on which the image processing has been performed on the projection surface.

  According to this method, even if there are many viewers, a favorable viewing environment can be easily obtained. In addition, by changing the operation pattern, it is possible to easily change the way of projection, and it is possible to perform appropriate projection according to the situation.

  Moreover, the projection display program of this invention is a program for making a computer perform each step of the said projection display method.

  According to this program, even if there are many viewers, a favorable viewing environment can be easily obtained. In addition, by changing the operation pattern, it is possible to easily change the way of projection, and it is possible to perform appropriate projection according to the situation.

  According to the present invention, a good viewing environment can be easily obtained even when there are many viewers.

The block diagram which shows the structural example of the portable apparatus in embodiment of this invention. (A)-(C) The figure which shows the example of an external appearance of the portable apparatus in embodiment of this invention. (A)-(C) The figure which shows an example of a mode that many viewers browse the photograph projected with the portable apparatus in embodiment of this invention. (A)-(B) The figure which shows the example of a setting operation | movement of the rotation display speed in embodiment of this invention. (A)-(C) The figure which shows the various projection patterns in embodiment of this invention. (A)-(B) The figure which shows an example of operation which changes the projection pattern in embodiment of this invention, and switches rotation mode (A)-(B) The figure which shows an example of the number of the images displayed on a projection screen according to the inclination of the portable apparatus in embodiment of this invention. The figure which shows an example of UI screen of the portable apparatus in embodiment of this invention The flowchart which shows an example of the projection display operation | movement procedure in embodiment of this invention. The figure which shows an example of UI screen which replaces the image projected in embodiment of this invention like a slide show The figure which shows an example of UI screen which can input the setting value regarding projection in embodiment of this invention (A)-(C) The figure which shows an example of the projection screen corresponding to the seat pattern in embodiment of this invention (A)-(B) The figure explaining an example of operation which changes rotation display speed by UI operation in embodiment of this invention. (A)-(B) The figure which shows an example of operation which sets the number of projections from the image image | photographed with the camera in embodiment of this invention.

  Hereinafter, a projection display device, a portable device, a projection display method, and a projection display program according to an embodiment of the present invention will be described with reference to the drawings. The projection display device of the present embodiment is applied to, for example, a portable device equipped with a projector function. Hereinafter, a portable device will be exemplified as the projection display device.

  FIG. 1 is a block diagram illustrating a configuration example of a portable device 1 as a projection display device according to an embodiment of the present invention. The mobile device 1 includes a UI processing unit 11, an image database 12, an inclination information processing unit 13, an image processing unit 14, a projection unit 15, a display unit 18, a communication unit 25, and an image recognition processing unit 31. .

  An acceleration sensor 21 disposed in the mobile device 1 is connected to the tilt information processing unit 13. As will be described later, the tilt information processing unit 13 detects the tilt (tilt angle) of the mobile device 1 obtained from the acceleration sensor 21, the rotation speed (tilt speed) when the mobile device 1 tilts, and the like. The acceleration sensor 21 and the tilt information processing unit 13 correspond to a tilt detection unit. The acceleration sensor may be any sensor that can detect the inclination by any one or combination of a geomagnetic sensor, a gyro sensor, a six-axis sensor, and the like.

  The UI processing unit 11 includes an operation pattern determination unit 41. The motion pattern determination unit 41 generates a motion pattern based on the tilt information obtained from the tilt information processing unit 13. Here, the operation pattern represents the number (number of projections) of images displayed on the projection screen (projected surface), size, rotation (slide) pattern, rotation direction, rotation speed, and the like. It is determined by parameters for performing image processing in the unit 14.

  The UI processing unit 11 is connected to a display unit 18 for displaying various information such as a UI screen, a touch panel 23 that can be input by a user, and keys 24. The key 24 is provided with a projection button 24a for turning on / off the projection function. The projection button 24a may be a soft key. Or even if there is no input operation with respect to the direct projection button 24a, when the housing | casing of the portable apparatus 1 continues at a predetermined angle more than fixed time, it is good also as ON / OFF.

The image database 12 (image storage unit) communicates with an external device (not shown) via the communication unit 25 and stores image data such as still images and moving images input from the external device.
In addition, images and moving images taken by the camera 34 of the mobile device 1 are also stored.

  The image processing unit 14 includes a conversion processing unit 43, a composition processing unit 44, and a rotation processing unit 45, and performs image processing on the image data stored in the image database 12 to generate video data for projection. To the projection unit 15.

  The conversion processing unit 43 changes the number or size of images displayed on the projection screen according to the projection area when the mobile device 1 is tilted. The composition processing unit 44 composes a plurality of images into one screen. The rotation processing unit 45 performs rotation processing on a plurality of images or one image combined on one screen. In this rotation processing, the image may be processed so as to rotate continuously, or the image may be processed so as to be switched at predetermined angles.

  The projection unit 15 has a projection window 15a (see FIG. 2A), and projects light 15b (see FIG. 3A) onto a table or the like based on the video data through the projection window 15a. .

  A camera 34 is connected to the image recognition processing unit 31. As will be described later, the image recognition processing unit 31 performs person recognition or the like from an image captured by the camera 34 and recognizes the number of viewers.

  Note that the functions of each unit such as the UI processing unit 11, the tilt information processing unit 13, the image processing unit 14, and the image recognition processing unit 31 are realized by the CPU that controls the portable device 1 executing a program stored in the ROM. Is done.

  2A to 2C are diagrams showing an example of the appearance of the mobile device 1. As shown in FIG. 2A, the portable device 1 has a housing 1a. The projection unit 15 is provided at an end of the housing 1a and is rotatable about an axis a in the short direction of the housing 1a. Thereby, the light projection window 15a can be directed to the end surface or the back surface of the housing 1a.

  By projecting the light projection window 15a toward the end surface of the housing 1a, projection from the front end of the portable device 1 becomes possible as shown in FIG. On the other hand, by directing the light projection window 15a toward the back surface of the housing 1a, projection from the back surface of the portable device 1 becomes possible as shown in FIG.

  FIGS. 3A to 3C are views showing how a large number of viewers browse photographs projected by the mobile device 1. FIG. 3A is a side view of a large number of viewers viewing a photograph projected by the mobile device 1, and FIG. 3B is a top view. Here, one of the viewers operates the mobile device 1 to project the light 15b on the table surface of the table 5 to project an image, and the remaining six viewers view the image projected on the table surface. The situation is shown. Eight photographs 65 projected as images on the table surface are swung so as to pass in front of seven viewers.

  FIG. 3C shows a projection screen 61 on which another photograph 65 is projected on the table surface. In this case, instead of continuous turning, the six photographs 65 turn so as to switch stepwise.

  In the present embodiment, the same applies to the case where one image rotates with respect to the center thereof, and the case where one or a plurality of images rotate continuously or stepwise around the table 5 or the like. This will be referred to as “rotation”.

  The rotational display speed when the projected image such as a photograph rotates can be arbitrarily set. FIGS. 4A and 4B are diagrams showing an example of setting operation of the rotational display speed. It is also possible to set the rotational display speed of the image to rotate 360 ° for a predetermined time set in advance.

  In this embodiment, the case where the rotation display speed is set based on the tilt speed of the mobile device 1 when the mobile device 1 is tilted and rotation of the projected image is started is shown. Thus, by performing the operation of tilting the portable device 1, both the start of rotation and the setting of the rotation display speed can be performed very easily.

  4A and 4B, a direction horizontal to the surface of the table 5 is defined as an XY direction, and a direction perpendicular to the surface of the table 5 is defined as a Z direction. As shown in FIG. 4A, the mobile device 1 is slowly tilted from the vertical position in the Z direction, and the acceleration sensor 21 detects the tilt in the longitudinal direction of the housing 1a with respect to the Z direction. When this inclination becomes 60 °, that is, when light is projected from the back surface of the mobile device 1, the projection angle (tilt angle) θ1 in which the light projection direction (first direction) is inclined by 30 ° with respect to the Z direction. At that time, the rotation of the image is started, and the inclination speed at that time is obtained by the acceleration sensor 21.

  When the tilt speed is equal to or lower than the predetermined value, the rotational display speed of the image projected on the surface of the table 5 is set to a low speed. On the other hand, as shown in FIG. 4B, when the tilt speed exceeds a predetermined value, the rotational display speed of the image projected on the surface of the table 5 is set to a high speed. Thus, the rotation display speed can be easily changed by the tilt speed when the portable device 1 is tilted, and the operation is simplified.

  The inclination angle θ1 is not limited to 30 °, and may be any angle. 4A and 4B show the case where the light projection window 15a is positioned on the back surface of the casing 1a of the portable device 1, the end face in the longitudinal / short direction of the casing 1a, that is, Even when it is located on any surface of the casing of the portable device 1 (see FIGS. 7A and 7B), the same operation is performed.

  As described above, when the inclination detected by the acceleration sensor 21 serving as the inclination detecting unit and the inclination information processing unit 13 reaches a predetermined angle, the motion pattern determining unit 41 rotates the image displayed on the projection surface. An operational pattern may be determined to begin.

  Further, the acceleration sensor 21 and the tilt information processing unit 13 as the tilt detecting unit detect the tilt in the Z direction as the first direction, and the motion pattern determining unit 41 has reached the predetermined angle in the Z direction. In this case, the operation pattern may be determined so that rotation of the image displayed on the projection surface starts.

  Thereby, the rotation of the image can be easily started in conjunction with the inclination of the mobile device 1.

  Further, the motion pattern determination unit 41 determines the motion pattern so that the rotation of the image becomes faster as the tilt speed of the tilt detected by the acceleration sensor 21 and the tilt information processing unit 13 as the tilt detection unit is larger. Also good.

  Further, the acceleration sensor 21 and the tilt information processing unit 13 as the tilt detection unit are XY as the second direction orthogonal to the Z direction as the first direction that is the light projection direction by the projection unit 15. The motion pattern determination unit 41 may determine the motion pattern so that the rotation of the image becomes faster as the tilt speed of the tilt in the XY direction is larger.

  Thereby, the rotation speed of the image can be easily adjusted in conjunction with the inclination speed of the mobile device 1.

  In the present embodiment, a plurality of projection patterns of images projected on the table surface are prepared. 5A to 5C are diagrams showing various projection patterns. FIG. 5A shows a pattern A in which a single photograph projected on the table surface is rotated 360 ° continuously to the right or left. FIG. 5B shows a pattern B in which a plurality of photographs projected on the table surface rotate 360 degrees continuously in one direction to the right or left. FIG. 5C shows a pattern C in which the turning area is divided into two and a plurality of photographs are turned in opposite directions. In these patterns, when one round or one rotation is completed, it may be replaced with a new photograph that has not been displayed, and swirling or rotation may be performed continuously.

  In the present embodiment, the operation of changing the projection pattern and switching the rotation mode can be performed in a state where the viewer is holding and projecting the portable device 1. FIG. 6A is a diagram illustrating an operation of changing the projection pattern and switching the rotation mode. As shown in FIG. 6A, in the state where the portable device 1 is gripped and projected onto the surface of the table 5, the short direction (second direction) orthogonal to the longitudinal direction of the portable device 1 is set to the left and right. Tilt. Thus, the inclination (inclination angle) θ2 is detected by the acceleration sensor 21, and the projection pattern can be changed. Therefore, it is possible to switch the rotation mode with an extremely simple operation.

  When the tilt angle θ2 becomes equal to or greater than a predetermined angle (for example, 30 °), depending on whether the tilt direction is right or left, as shown in FIG. Is different. For example, when the projection pattern is clockwise one pattern A, when the projection pattern is tilted to the right, the projection pattern is switched one counterclockwise. Once the orientation has been returned, when it is further tilted to the right, the pattern B is switched to a plurality of clockwise turns. Similarly, when the projection pattern is clockwise by one pattern A, when the projection pattern is tilted to the left, the pattern C is switched to a plurality of two divisions.

  Note that when tilted, the position and shape of the projected surface change momentarily, but since the tilt of the portable device 1 is immediately restored, the projected surface is also restored.

  As described above, the acceleration sensor 21 and the tilt information processing unit 13 as the tilt detection unit detect the tilt in the XY direction as the second direction, and the motion pattern determination unit 41 determines the tilt in the XY direction. Based on this, the rotation mode of the image displayed on the projection surface may be switched. Accordingly, the image rotation mode can be easily set in conjunction with the tilt direction of the mobile device 1.

  7A to 7B are diagrams showing the number of images displayed on the projection screen in accordance with the inclination of the mobile device 1. Here, the light projection window 15 a (see FIG. 2A) is directed to the distal end surface of the mobile device 1. As shown in FIG. 7A, when the tilt angle (projection angle) θ1 of the portable device 1 is small, the area of the projection screen 61 projected on the table 5 is small. On the other hand, as shown in FIG. 7B, when the tilt angle (projection angle) θ1 of the portable device 1 is large, the area of the projection screen 63 projected on the table 5 is large.

  In the present embodiment, when the area of the projection screen is large, the number of photographs to be projected increases compared to the case where the projection screen is small. On the projection screen 61, seven photos are displayed, and on the projection screen 63, ten photos are displayed. Thereby, the empty space which arises when a projection screen spreads can be utilized effectively. Note that, instead of increasing or decreasing the number of photographs, the size of the photograph to be projected may be increased. Further, various information such as a message may be projected using an empty space at the center of the projection screen 61.

  As described above, the motion pattern determination unit 41 is applied to the projection surface according to the size of the projection surface that is changed by the change in the inclination detected by the acceleration sensor 21 and the inclination information processing unit 13 as the inclination detection unit. The operation pattern of the displayed image may be changed.

  Further, the operation pattern determination unit 41 may change at least one of the size and the number of images displayed on the projection surface according to the size of the projection surface.

  As a result, the number and size of photographs can be easily changed by simply changing the tilt of the portable device 1, and the operability is extremely improved.

  FIG. 8 is a diagram showing a UI screen 71 of the mobile device 1. The UI screen 71 displayed on the display unit 18 of the mobile device 1 displays a revolver type UI 71a that makes the user imagine the projection screen. In the UI 71a, an image such as a photograph to be projected is set. Further, an image group 71b that is a setting candidate is displayed below the UI screen 71. The user selects a desired photograph from the image group 71b and moves it to a predetermined frame 72 of the UI 71a by touch & slide operation or the like, so that a projection photograph is set in advance.

Next, the projection display operation of the mobile device 1 will be described.
FIG. 9 is a flowchart showing a projection display operation procedure. The projection display program for performing this operation is stored in the ROM in the portable device 1 as described above, and is realized by the CPU in the portable device 1 when the projection button 24a is turned on.

  First, the mobile device 1 determines whether or not the motion pattern determination unit 41 is in the vertical position from the tilt information detected by the acceleration sensor 21 and processed by the tilt information processing unit 13 (step S1). If it is not in the vertical position, the mobile device 1 repeats the process of step S1. The vertical position state is a state in which the longitudinal direction of the mobile device 1 is positioned along the Z direction.

  On the other hand, if it will be in the state of a vertical position, the portable apparatus 1 will detect the inclination (inclination angle) of the housing | casing 1a using the acceleration sensor 21 (step S2). The mobile device 1 determines whether or not the inclination of the housing 1a has reached a predetermined angle, for example, 30 ° (see step S3, FIGS. 4A and 4B).

  When the inclination of the housing 1a is less than 30 °, the portable device 1 returns to the process of step S2. On the other hand, when the inclination of the housing 1a reaches 30 °, the portable device 1 starts projecting light from the projection unit 15 (step S4). When light projection is started, an image such as a photograph is displayed on the projection screen projected on the table 5. The light projection may be performed not when it is inclined by 30 °, but when it is inclined at an angle larger or smaller than 30 °, or may be started when the projection button 24a is turned on.

  In this way, the projection unit 15 may start projecting light when the inclination in the Z direction reaches a predetermined angle. Thereby, it can prevent that light is unexpectedly irradiated toward the viewer from the projection part 15. FIG.

  Furthermore, the portable device 1 detects the tilt speed when tilted by 30 °, and sets the rotational display speed of the image displayed on the projection screen corresponding to this tilt speed (step S5).

  The portable device 1 reads the image data registered in the image database 12, and the image processing unit 14 performs various kinds of image data such as composition and rotation on the image data so as to obtain a set value such as a rotation display speed. Image processing is performed (step S6).

  During the light projection, the portable device 1 determines whether or not the left / right inclination angle θ2 of the housing 1a exceeds 30 ° (step S7). When the left and right inclination angles of the housing 1a exceed 30 °, the portable device 1 changes the projection pattern in the order shown in FIG. 6B and switches the rotation mode (step S8). Thereafter, the mobile device 1 returns to the process of step S6. On the other hand, when the left and right inclination angles of the housing 1a do not exceed 30 °, the portable device 1 proceeds directly to the process of step S9.

  As shown in FIGS. 7A and 7B, the mobile device 1 determines whether or not the inclination angle θ1 of the housing 1a has been changed (step S9). When the inclination angle θ1 is changed, the portable device 1 changes the setting to the number of projections corresponding to the changed inclination angle θ1 and continues the projection (step S10). Thereafter, the mobile device 1 returns to the process of step S6. On the other hand, when the inclination angle θ1 is not changed in step S9, the mobile device 1 proceeds to the process of step S11 as it is.

  Thereafter, the mobile device 1 determines whether or not the projection button 24a has been operated off (step S11). If not turned off, the mobile device 1 returns to the process of step S6. On the other hand, when operated off, the portable device 1 ends this operation.

  Thus, the portable device 1 as the projection display device of the present embodiment projects the light 15b and displays an image on the projection surface, and the image database 12 as an image storage unit that stores the image; The acceleration sensor 21 and the tilt information processing unit 13 serving as a tilt detection unit that detects the tilt of the mobile device 1, and the motion pattern determination unit 41 that determines the motion pattern of the image displayed on the projection surface based on the detected tilt. And an image processing unit 14 that performs image processing corresponding to the determined operation pattern on the image stored in the image database 12, and projecting light for displaying the image subjected to the image processing on the projection surface Projecting unit 15.

  Thereby, even if there are many viewers, a favorable viewing environment can be obtained easily. In addition, the way of projection can be easily changed, and appropriate projection according to the situation can be performed.

  The present invention is not limited to the configuration of the above-described embodiment, and any configuration can be used as long as the functions shown in the claims or the functions of the configuration of the present embodiment can be achieved. Is also applicable.

  For example, in the UI screen 71 of FIG. 8, the images are arranged by dragging and dropping them in a predetermined frame 72 by drag and drop, but it is also possible to replace the images projected in order like a slide show. It is. FIG. 10 is a diagram showing a UI screen 71A for exchanging projected images in a slide show. In the UI screen 71A, the projected photograph is arranged in eight annular frames 72a. In addition, when a plurality of projected photographs turn counterclockwise, a photograph to be projected next is disposed in the right frame 72b, and a photograph that is to be projected is disposed in the left frame 72c. On the other hand, when a plurality of projected pictures turn clockwise, the reverse operation is performed.

  Each time the rotation angle for one photo is reached, one photo enters the ring like a slide show, and one photo exits the ring. This operation is continued until the last image registered in the image database 12 is reached.

  In this way, it is possible to automatically project images such as photographs continuously. When there are a lot of images, the trouble of putting in and out the images can be saved and the operability is improved.

  In addition, details regarding projection can be set on the UI screen (operation unit). FIG. 11 is a diagram showing a UI screen 71B on which setting values related to projection can be input. In the upper right part of the UI screen 71B, a pull-down menu 73 for selecting a seat pattern is displayed. In this pull-down menu 73, a round table, a corner table, or an arbitrary one can be selected. In the case of a round table, a table in which seats are arranged in a circle is assumed. In the case of a round table, a table with seats on each side is assumed. In any case, for example, a table in which the position of the seat is movably arranged by a touch operation is assumed. For example, the position of the seat can be specified even for an elliptical table or an octagonal table. Then, an image such as a photograph is arranged on the projection screen so as to match the determined seat pattern. 12A to 12C are diagrams showing projection screens corresponding to seat patterns. FIG. 12A shows the case of a table 5a of a round table. FIGS. 12B and 12C show the case of an elliptical table 5b and an octagonal table 5c with arbitrary settings, respectively.

  In addition, a pull-down menu 74 capable of setting the number of projections and a selection button 75 capable of setting the projection method are displayed on the UI screen 71B. In the pull-down menu 74, the number can be set according to the number of viewers surrounding the table. In FIG. 11, eight sheets are set.

  In addition, the selection button 75 can select “revolver” that shows different images sequentially as “same” that shows a plurality of images that are the same.

  In the above embodiment, the rotational display speed of a plurality of photographs is determined from the tilt speed when the mobile device 1 tilts by 30 °, but is determined by the input operation of the key 24 or the touch panel 23 as a default value. You may do it.

  FIGS. 13A and 13B are diagrams illustrating an operation for changing the rotation display speed by the UI operation. As shown in FIG. 13A, when the speed selector 24b is provided as a part of the key 24 in the portable device 1A, the rotation operation (clockwise, counterclockwise) of the speed selector 24b is performed by the touch panel 23 or the key 24. The operation pattern determination unit 41 may change the rotation display speed according to the speed or the operation amount.

  Instead of using the rotation operation of the speed selector 24b, a flick operation representing rotation may be performed on the touch panel 23. Further, it may be possible to switch between setting of manual rotation via the touch panel 23 or the key 24 and automatic rotation set to rotate 360 ° in a predetermined time in advance. Thereby, the setting of the rotation display speed can be simplified and can be easily changed later.

  As described above, the setting value set on the UI screen that can be input by the user is used together with the tilt information of the mobile device 1A as necessary, so that the operation pattern of the image can be set in more detail.

  In FIG. 11, the user manually sets the number of projections from the pull-down menu 74 of the UI screen 71B via the touch panel 23 or the key 24. However, the viewer is photographed, and the operation pattern determination unit 41 displays the viewer. The number of projections may be set according to the number of people. 14A and 14B are diagrams illustrating an operation for setting the number of projections from an image captured by the camera 34. FIG. As shown in FIG. 14A, the user photographs the viewer with the camera 34 mounted on the portable device 1A. In the portable device 1 </ b> A, the number of viewers (persons) is specified by the image recognition processing unit 31 from the image captured by the camera 34 using a face detection function or the like.

  For example, as shown in FIG. 14B, when the number of viewers is three, the operation pattern determination unit 41 sets the number of projections to three. Note that the operation pattern determination unit 41 may set the number of projections to a multiple of the number of photographed persons or a number calculated according to a certain rule. In this way, it is possible to save the user from manually inputting the number of projections.

  As described above, the operation pattern determination unit 41 includes the camera 34 as an image capturing unit that captures an image and the image recognition processing unit 31 as a person recognition unit that recognizes a person from an image captured by the camera 34. The number of images displayed on the projection surface may be determined according to the number of persons recognized by the image recognition processing unit 31. Thus, the number of images can be easily set without performing a special setting operation.

  Further, an input operation for prohibiting the change of the image processing parameter once set may be performed via the key 24 or the touch panel 23. This prevents an operation that mistakenly changes the image processing parameter during projection. Further, instead of the input operation to be prohibited, the trigger may be that a predetermined time has elapsed after the setting is not changed.

  As described above, the operation pattern determination unit 41 may prohibit the change of the determined operation pattern according to the elapse of a predetermined time from the time when the operation or the operation pattern is determined by the touch panel 23 or the key 24 as the operation unit. . Thereby, although the inclination of the portable device 1 is easily changed by being held by the user's hand, it is possible to prevent the operation pattern and the image processing parameter from being changed every time the inclination is changed.

  Moreover, in the said embodiment, although the image projected on the surface of the table 5 was a photograph, a figure, a table | surface, etc. may be sufficient, and also a moving image may be sufficient.

  In the above embodiment, the mobile device 1 on which the projection display device is mounted is a single device that can be connected to a mobile terminal such as a mobile phone or a smartphone, or a PC or the like wirelessly or by wire in addition to the projector itself. May be. In this case, image data may be held in a PC or the like, and image data may be transferred from the PC or the like as necessary.

  The present invention also applies a program that supplies a projection display program that realizes the functions of the above-described embodiments to a portable device via a network or various storage media, and that is read and executed by a computer (CPU) in the portable device. It is a range.

  INDUSTRIAL APPLICABILITY The present invention is useful because it can easily obtain a good viewing environment even when there are many viewers when light is projected and an image is displayed on a projection surface.

DESCRIPTION OF SYMBOLS 1, 1A Portable apparatus 1a Case 5 Table 11 UI processing part 12 Image database 13 Inclination information processing part 14 Image processing part 15 Projection part 15a Light projection window 15b Light 18 Display part 21 Acceleration sensor 23 Touch panel 24 Key 24a Projection button 24b Speed Selector 25 Communication unit 31 Image recognition processing unit 34 Camera 41 Operation pattern determination unit 43 Conversion processing unit 44 Composition processing unit 45 Rotation processing unit 61, 63 Projection screen 65 Photo 71, 71A, 71B UI screen 71a UI
71b Image group 72 Frame 73, 74 Pull-down menu 75 Select button

Claims (14)

A projection display device that projects light and displays an image on a projection surface,
An image storage unit for storing images;
An inclination detector for detecting the inclination of the projection display device;
An operation pattern determination unit that determines an operation pattern of an image displayed on the projection surface based on the inclination detected by the inclination detection unit;
An image processing unit that performs image processing corresponding to the operation pattern determined by the operation pattern determination unit on the image stored in the image storage unit;
A projection unit that projects light for displaying the image on which the image processing has been performed by the image processing unit;
A projection display device comprising: The projection display device according to claim 1,
The motion pattern determination unit determines the motion pattern so that rotation of an image displayed on the projection surface starts when the tilt detected by the tilt detection unit reaches a predetermined angle. apparatus. The projection display device according to claim 2,
The tilt detection unit detects a tilt in a first direction that is a projection direction of light by the projection unit, and when the tilt in the first direction detected by the tilt detection unit reaches a predetermined angle, The motion pattern determination unit is a projection display device that determines the motion pattern so that rotation of an image displayed on the projection surface starts. The projection display device according to claim 1,
The projection display device, wherein the motion pattern determination unit determines the motion pattern so that the rotation of the image is faster as the tilt speed of the tilt detected by the tilt detection unit is larger. The projection display device according to claim 3,
The tilt detection unit detects a tilt in a second direction orthogonal to the first direction, which is a light projection direction by the projection unit,
The projection display device, wherein the motion pattern determination unit determines the motion pattern so that the rotation of the image becomes faster as the tilt speed of the tilt in the second direction detected by the tilt detection unit is larger. The projection display device according to claim 1,
The tilt detection unit detects a tilt in a first direction that is a light projection direction by the projection unit,
The projection unit is a projection display device that starts projecting light when the tilt in the first direction detected by the tilt detection unit reaches a predetermined angle. The projection display device according to claim 1,
The tilt detection unit detects a tilt in a second direction orthogonal to the first direction, which is a light projection direction by the projection unit,
The operation pattern determination unit is a projection display device that switches a rotation mode of an image displayed on the projection surface based on an inclination in a second direction detected by the inclination detection unit. The projection display device according to claim 1,
The operation pattern determination unit is a projection display that changes an operation pattern of an image displayed on the projection surface in accordance with a size of the projection surface that is changed by changing the inclination detected by the inclination detection unit. apparatus. The projection display device according to claim 8,
The operation pattern determination unit is a projection display device that changes at least one of the size and the number of images displayed on the projection surface according to the size of the projection surface. The projection display device according to claim 1,
An image capturing unit for capturing images;
A person recognition unit for recognizing a person from an image photographed by the image photographing unit;
With
The operation pattern determination unit is a projection display device that determines the number of images displayed on the projection surface according to the number of persons recognized by the person recognition unit. The projection display device according to claim 1,
The operation pattern determination unit is a projection display device that prohibits the change of the determined operation pattern according to the elapse of a predetermined time from the time of operation by the operation unit or determination of the operation pattern.   A portable device on which the projection display device according to any one of claims 1 to 12 is mounted. A projection display method in a projection display device that projects light from a projection unit and displays an image on a projection surface,
Detecting the tilt of the projection display device;
Determining an operation pattern of an image displayed on the projection surface based on the detected inclination;
Performing image processing corresponding to the determined operation pattern on an image stored in an image storage unit storing the image;
Projecting light from the projection unit to display the image subjected to the image processing on the projection surface;
A projection display method.   A projection display program for causing a computer to execute each step of the projection display method according to claim 13.

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