JP2015060211A - Projection device, program, and projection control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable projection on a desired portion as a screen (projection surface) without involving complicated work of changing and modifying the layout of display elements constituting an image to be projected.SOLUTION: When projecting on a projection surface with an aspect ratio of 1:1 instead of scheduled 4:3, a projection device rearranges design components A to E on the basis of the aspect ratio and position data indicating relative positions of the design components A to E. The projection device determines the presence of design components overlapped with each other due to the rearrangement of the design components A to E. For example, the design component D and design component E are overlapped with each other. As for both the design components D and E, the design component D has priority data ranked 3, whereas the design component E has priority data ranked 2, and the design component E has higher priority. Therefore, the design component E is arranged in front of the design component D.

Description

  The present invention relates to a projection apparatus, a control program for the projection apparatus, and a projection control method.

  Conventionally, so-called digital signage for performing advertisements such as merchandise sales using a projection device has been widely performed (see, for example, Patent Document 1). In such digital signage, there is an advantage that display data related to products and the like can be projected everywhere and advertisements can be performed by using the wall of a store or a building as a screen (projection surface) as appropriate. In particular, when a small and lightweight mobile projector is used, a location used as a screen can be easily and easily changed, and thereby effective advertising can be performed.

JP 2011-100316 A

  In the above-mentioned digital signage, projected display data (hereinafter referred to as information projection data) generally includes display elements such as photographs, illustrations, company logos, and explanatory texts, and these display elements have a predetermined aspect ratio. The configuration is arranged in an appropriate layout in a plane. Information projection data having such a configuration is stored in a memory, and is read out to perform projection. Therefore, the advertisement image based on the information projection data is also projected and displayed with a predetermined aspect ratio.

  However, if projection is performed using a storefront or a wall of a building as a screen instead of a dedicated screen, it may be difficult to secure an area having a predetermined aspect ratio at the location to be projected. In this case, it is necessary to change or correct the layout of the display elements in the stored information projection data in accordance with the aspect ratio of the projection plane used as the screen this time. For this reason, the actual situation is that the advantage of the digital signage is hindered by the disadvantage that a complicated work of changing or correcting the layout may be forced during projection.

  The present invention has been made in view of such a situation, and projection is performed using a desired portion as a screen (projection surface) without complicated operations for changing and correcting the layout of display elements constituting an image to be projected. An object of the present invention is to provide a projection device that can be performed, a program used for the projection device, and a projection control method.

  In order to solve the above problems, a projection apparatus according to the present invention includes storage means for storing image display data displayed by projection, and calculation means for calculating an aspect ratio of a projection plane on which the image display data is projected, The image display data includes individual image data and position data indicating a relative positional relationship between the individual image data, and based on the aspect ratio calculated by the calculation unit and the position data of the individual data, Generation means for generating arrangement data in which the image data is arranged on the projection plane with the aspect ratio calculated, and projection for projecting the image display data on the projection plane based on the arrangement data generated by the generation means And means.

  In addition, the program according to the present invention causes a computer included in a projection apparatus including a storage unit that stores image display data for displaying an image by projection to function as a calculation unit that calculates an aspect ratio of a projection plane on which the image is projected. In addition, individual image data that causes the image display data to be displayed by arranging a display element in a virtual plane having an arbitrary aspect ratio, and position data indicating a relative position of the display element in the virtual plane. And generating means for generating rearrangement data in which display elements arranged in the virtual plane are rearranged at positions indicated by the position data on the projection plane based on the aspect ratio calculated by the calculation means; Based on the rearrangement data generated by the generation unit, the image processing unit functions as a projection unit that projects the image onto the projection plane. And wherein the door.

  Further, the projection method according to the present invention is a projection method in an apparatus including a storage unit that stores image display data displayed by projection, and a calculation step of calculating an aspect ratio of a projection surface onto which the image display data is projected. The image display data includes individual image data and position data indicating a relative positional relationship between the individual image data, and is based on the aspect ratio calculated by the calculation unit and the position data of the individual data. Generating the arrangement data in which the individual image data is arranged on the projection plane having the aspect ratio calculated, and projecting the image display data on the projection plane based on the arrangement data generated by the generation step A projection step.

  According to the present invention, without involving the complicated work of changing or correcting the layout of the display elements constituting the image to be projected, a place having any desired shape is used as a screen (projection surface), Projection can be performed without greatly losing the layout.

It is a figure which illustrates the projection state of the projector which concerns on one embodiment of this invention. 1 is a block diagram showing a circuit configuration of a projector according to an embodiment of the present invention. (A) is a figure which shows an example of the signage image displayed by projection, (b) is a figure which shows the content which comprises a signage image. It is a figure which shows the content of size data. It is a figure which shows the content of the position data x. It is a figure which shows the content of the position data y. It is a figure which shows the reference | standard image displayed by the information projection data containing design components A-E, (b) is a figure which shows the content of information projection data. It is a flowchart which shows the process sequence in this Embodiment. It is a figure which shows the setting procedure of the projection surface in a non-rectangular projection surface. It is a flowchart which shows the processing content of a component rearrangement process. It is a figure which shows the image displayed by the information projection data containing the design components AE on the projection surface of aspect ratio 1: 1, (b) is a figure which shows the content of information projection data. It is a figure which shows a projection procedure.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an external shape and a projection state of a projector 1 according to an embodiment of the present invention. The projector 1 is a small and light mobile type, and has a housing 50 made of a horizontally long rectangular parallelepiped. A projection unit 51 and a photographing unit 52 are provided on the upper surface of the housing 50. The projection direction and the projection range of the projection unit 51 and the imaging direction and the imaging range of the imaging unit 52 are substantially the same, and the diagonally upper front of the projector 1 is defined as each direction and range.

  FIG. 2 is a block diagram showing an electrical configuration of the projector 1. The projector 1 operates using a rechargeable battery 29 as a power source, and includes a voltage detection circuit 28, a control unit 11, an input / output interface 12, an image conversion unit 13, a display encoder 14, a display drive unit 15, and an imaging device. 54 etc. The battery 29 supplies power to each part, and the voltage detection circuit 28 detects the voltage of the battery 29.

  The input / output connector section 16 includes a pin jack (RCA) type video input terminal, a D-sub 15 type RGB input terminal, an HDMI (registered trademark) standard image / audio input terminal, and a USB connector. The image data of various standards input from these is stored in a storage area provided in the RAM 112 via the input / output interface 12 and the system bus 17. The image data stored in R112 is read out, converted by the image conversion unit 13 so as to be unified into an image signal of a predetermined format suitable for display, and then sent to the display encoder 14. The display encoder 14 develops and stores the transmitted image signal in the video RAM 18, generates a video signal from the stored contents of the video RAM 18, and outputs the video signal to the display driving unit 15.

  The display driving unit 15 to which the video signal is input from the display encoder 14 drives the display element 19 which is a spatial light modulation element (SOM) at an appropriate frame rate in accordance with the transmitted image signal. Then, the light bundle emitted from the light source device 20 having a lamp is incident on the display element 19 through the light source side optical system, thereby forming an optical image with the reflected light of the display element 19, and the projection side optical system. An image is projected and displayed on a screen (not shown) through the movable lens group 21. The movable lens group 21 of the projection side optical system is driven by a lens motor 22 for zoom adjustment and focus adjustment.

  The image compressing / decompressing unit 23 compresses the luminance signal and color difference signal in the image signal by processing such as ADTC and Huffman encoding, and records the data on the memory card 24. The read image data is read out, and individual image data constituting a series of moving images is expanded in units of one frame and sent to the display encoder 14 via the image conversion unit 13, and is based on the image data stored in the memory card 24. This makes it possible to display moving images and the like.

  An audio signal (audio data) input from the input / output connector unit 16 is amplified by the audio processing unit 30 via the input / output interface 12 and the system bus 17 and then reproduced by the speaker 31.

  The imaging device 54 includes a CCD or the like on which a subject image is formed by an imaging lens 55 having an AF function, and the DSP 53 processes an imaging signal (image signal) from the imaging device 54 and supplies the processed signal to the control unit 11. To do.

  The control unit 11 controls the operation of each circuit in the projector 1, and includes a CPU and its peripheral circuits, a ROM 111, a RAM 112, and the like. The ROM 111 stores programs such as various settings, programs and data shown by flowcharts described later, and the RAM 112 is used as a work memory or the like.

  The key / indicator section 25 includes a plurality of keys and indicators arranged on the outer surface of the housing 50, a lamp that lights up when the projector 1 is activated, and the plurality of keys include a power key and various function keys. Yes. These keys and indicators are scanned and displayed and blinked by the control unit 11, and operation signals for various keys are sent to the control unit 11. The key operation signal from the remote controller is received by the Ir receiver 26, demodulated by the Ir processor 27, and the code signal is sent to the controller 11.

  The control unit 11 controls the light source control circuit 32 to perform time-division control on the red light source, the green light source, and the blue light source according to the image signal. Further, the cooling fan drive control circuit 33 performs temperature detection by a plurality of sensors provided in the light source device 20 and the like to control the rotation speed of the cooling fan, and cools the projector body even after the power is turned off by a timer or the like. Control of turning off the power of the projector main body is also performed depending on the result of temperature detection by the temperature sensor by continuing the rotation of the fan.

  The movable lens group 21 used when projecting an image is arranged in the projection unit 51 shown in FIG. 1, and the imaging lens 55 used when taking an image is inside the imaging unit 52 shown in FIG. Are exposed to the outside of the housing 50.

  FIG. 3A is a diagram showing an example of a signage image displayed by projection, and FIG. 3B is a diagram showing content constituting the signage image. In general, a signage image is configured by combining a plurality of contents (photos, illustrations, company logos, explanations, titles, QR codes (registered trademark), etc.). The information projection data, which is data for displaying the signage image, is created assuming that the contents, which are display elements constituting the signage image, are independently designed parts having display areas A to E. Therefore, in this specification, the symbols A to E are used in common for the display areas A to E, the design parts A to E, and the contents A to E for convenience. At this time, when the shape of the content is not rectangular as in the display areas A and D, a rectangular area that surrounds the contents is set as the display area. Also, as shown in FIG. 3B, the contents displayed in the areas A to E in the present embodiment are A = product title, B = product photo, C = product description, D = illustration, E = Company logo.

  This information projection data is created by PC software. The user selects an assumed aspect ratio of the projection plane (in this embodiment, 4: 3 = 1280 × 960 dots), and sets it as the reference projection plane R as shown in FIG. A plurality of content design parts A to E are arranged on the reference projection plane R in a desired size. Finally, a decision process such as pressing the decision button is performed to finalize the layout, and information projection data is generated.

The generated information projection data is stored in, for example, a USB memory. When this USB memory is connected to the USB connector provided in the input / output connector section 16, the information projection data is read via the input / output interface 12 and the system bus 17 and stored in a holding area provided in the RAM 112. The The information projection data stored in this holding area is composed of the following data elements (1) to (5).
(1) Aspect ratio: As shown in FIG. 3 (a), when a user arranges a plurality of content design parts in a desired size on the reference projection plane R and creates a projection image, The aspect ratio of the projection plane selected as the reference projection plane is 4: 3 in this embodiment.
(2) Size data: As shown in FIG. 4, when the area of the projection plane (in this example, the reference projection plane R) is 100, the proportion of the area occupied by each design component in the projection plane is It is expressed as a percentage. For example, in FIG. 4, the design components F and G have sizes of 8 and 28, respectively, with respect to the area of the reference projection plane R (projection plane).
(3) Position data: a data element that specifies the arrangement position of the design component using relative coordinates based on the horizontal (x-axis) length and vertical (y-axis) length of the projection plane. Referring to FIG. 5, the horizontal position of each design part is “0” as the center coordinates when the left side of the design part F or the design part G is arranged so as to be in contact with the left end of the reference projection plane R. Further, the center coordinates when the right end of the design part F or the design part G is arranged so as to be in contact with the right end of the reference projection plane R are set to “100”, respectively. Then, the horizontal position (x coordinate) of the design part F or the design part G is expressed by a relative value that can be taken by the corresponding 0 to 100.
Further, with reference to FIG. 6, the vertical position of the design component is set to “0” as the center coordinates when the design component F or the design component G is arranged so that the upper end of the design component F is in contact with the upper end of the reference projection plane R The center coordinates when the design component F or the design component G is arranged so that the lower end of the design component F or the design component G is in contact with the lower end of the reference projection plane R are set to “100”, respectively. Then, the vertical position (y coordinate) of the design part F or the design part G is expressed by a relative value that can be taken by the corresponding 0 to 100.
(4) Image data: Design parts stored in various data formats, such as bitmap (.bmp), JPEG (.jpg), and gif (.gif), are used as images by projector 1 according to this embodiment. Data that can be displayed.
(5) Priority data: When multiple design parts overlap, this value is used to determine which part will be displayed in front of the other parts without being hidden by other parts. The smaller the value, the higher the priority.

  FIG. 7A is a diagram illustrating a reference image displayed by information projection data including design parts A to E created by including the data elements (1) to (5) described above. (B) is a figure which shows the content of this information projection data.

  As shown in the figure, this reference projection plane R is 1280 × 960 dots and has an aspect ratio of 4: 3. For example, the design component A arranged on the reference projection plane R has size data “20”, position data x = 50, and position data y = 13. The image data is “bitmap (.bmp)”, and the image projected and displayed by this image data is “product title”. Further, the priority data is “1”, which is the highest priority among the design parts A to E. For example, the design component B has size data “17”, position data x = 19, and position data y = 91. The image data is “JPEG (.jpg)”, and the image projected by this image data is “product photograph”. Further, the priority data is “5”, which is the lowest priority among the design parts A to E.

  Similarly, the design parts C, D, and E have size data, position data x, position data y, image data, and priority data, and information projection of the reference projection surface R and the design parts A to E is performed. Data is created in advance by the user and stored in the USB memory. The USB memory is connected to a USB connector provided in the input / output connector unit 16, and the information projection data is stored in a holding area provided in the RAM 112 via the input / output interface 12 and the system bus 17.

  In the holding area of the RAM 112, background projection data may be stored in advance together with the information projection data. Background projection data is data used for projection of a background image on which an information image based on information projection data is superimposed.

  Thus, with the information projection data stored in the RAM 112, the user carries the projector 1 and goes to a place having the predetermined projection planes 101 to 103 shown in FIG. 51 and the photographing unit 52 are installed so as to face each projection plane.

Thereafter, when the power is turned on by operating the power key provided in the key / indicator unit 25, the control unit 11 performs processing as shown in the flowchart of FIG. 8 based on the program stored in the ROM 111.
First, a photographing process is executed (step S1). With this photographing process, the imaging device 54 is controlled to photograph the focused subject by the imaging lens 55, and image data is generated by the DSP 53 and is taken into the control unit 11. The execution of the photographing process may be automatically started after a predetermined time has elapsed from when the power key is turned on after the projector 1 is arranged, or a shutter key is provided in the key / indicator unit 25 and the shutter is released. You may make it perform in response to pressing of a key.

  When this photographing process is executed, the control unit 11 extracts the contour of the projection plane based on the captured image data (step S2). Therefore, when the user installs the projector 1 with the projection surface 101 of the upper body shape of the person shown in FIG. 1A as the projection target, “the upper body type of the person” is extracted as an outline, When the projector 1 is installed with the rectangular projection surface 102 as the projection target, “rectangle” is extracted as the contour, and when the projector 1 is installed with the projection surface 103 having the side surface shape of the automobile in FIG. The “car side shape” is extracted as a contour.

  Subsequently, the control unit 11 determines whether or not the extracted contour is a rectangle (step S3). If the extracted contour is a rectangle, that is, if the user is projecting the rectangular projection surface 102 of FIG. 1B, the process proceeds to step S11 described later without executing the processes of steps S4 to S10. Proceed with the process.

  However, when the extracted contour is not rectangular, that is, when the user is targeting the projection surface 101 having the upper body shape of the person as shown in FIG. 9A-1, or as shown in FIG. As described above, when the projection surface 103 having the side surface shape of the automobile is a projection target, the process proceeds to the next step S4, and it is determined whether or not there is an unprojectable region on the projection surface (step S4). Here, the non-projectable area is an area where it is inappropriate to project an image on the projection plane. For example, as shown in FIG. It is a part of. When the captured image of the projection surface 101 of the upper body shape of the person is captured, the control unit 11 recognizes that the face area 1011 that is a non-projectable area exists using the face recognition technology, and YES in step S4. Judge.

  Note that the non-projectable area is not limited to the face area 1011 on the projection surface 101 of the upper body of a person, but is superimposed on a fixed advertisement portion existing on the wall surface when the building wall surface is the projection surface, for example. Any region may be used as long as it is inappropriate to project. In this case, the image data of the unprojectable area is stored in the ROM 111 in advance, and whether or not the area displayed by the stored image data exists in the captured image of the captured projection surface is determined by a matching technique. Just judge.

  If there is an unprojectable region, the unprojectable region is masked (step S5), and a circumscribed rectangle is generated (step S6). If there is no unprojectable region, a circumscribed rectangle is generated as it is. (Step S6). Therefore, as shown in FIG. 9A-2, the control unit 11 masks the face area 1011 of the captured image by applying a mask M thereto. After that, a circumscribed rectangle is generated. Therefore, in the case of the projection surface 101 having the upper body shape of a person, the circumscribed rectangle QO is formed in the upper body portion excluding the face area 1011 as shown in FIG. Therefore, it is possible to prevent projection onto the unprojectable area.

  On the other hand, as shown in (b-1) in the figure, when the projection surface 103 having the side surface shape of an automobile is a projection target, there is no unprojectable area on the projection surface. Therefore, as shown in (b-2), the circumscribed rectangle QO is generated as it is.

  Thereafter, the aspect ratio of the generated circumscribed rectangle QO is calculated (step S7), and the component rearrangement process is executed (step S8). Details of this component rearrangement process will be described later.

  Next, when projection is performed with the information projection data including the design parts A to E rearranged in step S8 on the projection plane composed of the circumscribed rectangle QO by this part rearrangement process, the design parts A to E are used. It is determined whether a partial omission or an overall omission occurs.

  That is, in the circumscribed rectangle QO shown in FIG. 9 (a-2), since the inside is almost filled with the projection surface, the design part is missing in the circumscribed rectangle QO when the image is projected. Projection display can be performed without causing it to occur. Therefore, in this case, the determination in step S9 is NO, and the process proceeds to step S13 without executing the processes in steps S10 to S12. And the process which projects on the projection surface which consists of circumscribed rectangle QO with the information projection data containing the design components A to E rearranged in step S8 is executed.

  However, in the circumscribed rectangle QO shown in FIG. 9 (b-1), since a gap g... With no projection surface is generated, an image is projected into the gap g. As a result, the design part is missing. Therefore, in this case, the determination in step S9 is YES, and the process proceeds to step S10 to generate an inscribed rectangle. Therefore, in the case of the projection surface 103 having the side surface shape of the automobile, an inscribed rectangle QI is formed as shown in FIG. 9B-2.

  Thereafter, the aspect ratio of the generated inscribed rectangle QI is calculated (step S11), and component rearrangement processing is executed (step S12). Then, by this component rearrangement process, projection is executed with the information projection data including the design components A to E rearranged in step S12 on the projection plane composed of the inscribed rectangle QI (step S13).

  FIG. 10 is a flowchart showing the processing contents of the component rearrangement processing (steps S8 and S12). First, each design component is rearranged at the position indicated by each position data in the outline rectangle extracted in step S2, the inscribed rectangle generated in step S6, and the circumscribed rectangle generated in step S10. That is, the outline rectangle extracted in step S2, the inscribed rectangle generated in step S6, and the circumscribed rectangle generated in step S10 are 960 × 960 dots, as shown in FIG. Assume that the aspect ratio calculated in step S7 or step S11 is 1: 1. Accordingly, the projection plane is different from the aspect ratio (4: 3 = 1280 × 960 dots) of the projection plane assumed by the user.

  At this time, as described in (3) above, the position data indicates the layout position of the design component using relative coordinates based on the horizontal (x-axis) length and the vertical (y-axis) length of the projection plane. Since the data element is specified, if the aspect ratio of the projection plane changes, the relative position of the design component in the projection plane also changes. Accordingly, in step S101, the design components A to E are rearranged based on the respective position data in the projection plane whose aspect ratio has changed.

  Next, it is determined whether or not there are overlapping design parts as the design parts A to E are rearranged (step S102). In other words, the design parts are rearranged in the projection plane by the processing in step S101, and the size of each design part can be obtained from size data that is a percentage of the projection plane. Therefore, it is possible to determine whether or not a part of the adjacent design parts overlaps from the position and size of each design item.

  If there are overlapping design parts as a result of this determination, a design part with a higher priority is placed on the front (step S103). For example, it is assumed that the design part D and the design part E overlap as shown in FIG. As shown in FIG. 2B, both design parts D and E have priority data “3” for design part D, whereas priority data for design part E is “2”. Design component E has a higher priority. Therefore, the design part E is arranged in front of the design part D as shown in FIG. That is, the data change is performed to delete the portion of the design part D that overlaps the design part E.

  Therefore, if the priority data is stored, when the aspect ratio of the projection plane changes and the design parts overlap each other, the projected display is performed without losing a part of the design parts with high priority. can do. In addition, the entire design part with high priority can be projected by a simple process of partially deleting the data of one design part.

  Subsequently, it is determined whether there is a background image to be superimposed on the image to be projected this time (step S104). If there is a background image, the background image is superimposed (step S105). Then, after the component rearrangement process including the processes of steps S101 to S105 is executed in step S8 or step S12 in the flowchart of FIG. 8, the projection process is executed in step S13. Therefore, when there is a background image, not only the background image 202 shown in FIG. 12B can be projected onto the current projection surface 201 shown in FIG. 12A but also the design component shown in FIG. An information image 203 including A to E (contents A to E) can be superimposed and displayed.

  Therefore, even if the aspect ratio of the projection plane 201 to be projected this time is different from the planned aspect ratio of the projection plane, the troublesome work of changing or correcting the layout of the information image 203 is required. Accordingly, it is possible to perform projection on the projection plane 201 without greatly losing the layout.

  In addition, since the plurality of contents A to E are displayed and the sizes of the contents A to E are displayed in the same relative relationship as at the time of creation, the advertising effect that was planned at the time of data creation can be ensured. Can be obtained.

  Also. In the present embodiment, since the contour and aspect ratio of the projection plane are obtained by imaging by the imaging device 54, the contour and aspect ratio can be detected with simple processing contents such as imaging.

As mentioned above, although embodiment of this invention was described, these are suitably changeable if it is in the range with which the effect of this invention is acquired, Embodiment after change is also invention described in the claim, And the scope of the invention equivalent to that invention.
The invention described in the scope of the claims of the present application will be appended below.

[Claim 1]
Storage means for storing image display data displayed by projection;
Calculating means for calculating an aspect ratio of a projection surface for projecting the image display data;
The image display data includes individual image data and position data indicating a relative positional relationship of the individual image data,
Generating means for generating arrangement data in which the individual image data is arranged on the projection plane in which the aspect ratio is calculated based on the aspect ratio calculated by the calculating means and the position data of the individual data;
Projection means for projecting the image display data onto the projection plane based on the arrangement data generated by the generation means;
A projection apparatus comprising:

[Claim 2]
The individual image data is plural,
The projection apparatus according to claim 1, wherein the generation unit generates arrangement data in which a plurality of individual image data is arranged at a position indicated by the position data on the projection plane.

[Claim 3]
The image display data includes size data indicating a relative size of the individual image data in a virtual plane,
The projection apparatus according to claim 1, wherein the generation unit generates arrangement data in which the individual image data is arranged on the projection plane in a size indicated by the size data based on the size data.

[Claim 4]
The image display data includes priority data indicating a priority in the virtual plane of the individual image data,
The generating unit displays individual image data having a high priority according to the priority data in the case where adjacent display elements overlap when the individual image data arranged on the virtual plane is arranged in the projection plane. The projection apparatus according to claim 2, wherein arrangement data arranged on the screen is generated.

[Claim 5]
The projection apparatus according to claim 1, wherein the position data is x, y coordinate data of a virtual plane.

[Claim 6]
The projection apparatus according to claim 1, wherein the individual image data is content related to an advertisement.

[Claim 7]
The calculation means includes imaging means for imaging the projection plane,
The projection apparatus according to claim 1, wherein an aspect ratio is calculated based on an image of the projection plane imaged by the imaging unit.

[Claim 8]
The calculation unit includes an extraction unit that extracts an outline of the projection plane based on an image captured by the imaging unit,
The projection apparatus according to claim 7, wherein an aspect ratio is calculated based on the contour extracted by the extraction unit.

[Claim 9]
The calculation means includes first determination means for determining whether the outline of the projection plane extracted by the extraction means is rectangular or non-rectangular,
9. The projection apparatus according to claim 8, wherein, when the non-rectangular shape is determined by the first determination unit, a circumscribing rectangle circumscribing the outline is set as a projection plane, and an aspect ratio thereof is calculated.

[Claim 10]
The calculation means includes second determination means for determining whether or not the image is lost due to a partial loss of the projection plane when the circumscribed rectangle is a projection plane.
10. The projection apparatus according to claim 9, wherein, when the second determination unit determines that the omission occurs, an inscribed rectangle inscribed in the contour is set as a projection plane, and an aspect ratio thereof is calculated.

[Claim 11]
The calculation means includes third determination means for determining whether or not there is a non-projectable area that should not be projected on the projection plane,
11. The aspect ratio according to claim 1, wherein when the third determination unit determines that there is the non-projectable region, the aspect ratio is calculated using the remaining region excluding the region as a projection plane. The projection device described.

[Claim 12]
The storage means further stores background display data for displaying a background by projection,
12. The projection apparatus according to claim 1, wherein the projection unit superimposes and displays the image on the background based on the image display data and background display data.

[Claim 13]
A computer included in a projection apparatus including storage means for storing image display data displayed by projection;
A calculation means for calculating an aspect ratio of a projection surface for projecting the image display data;
The image display data includes individual image data and position data indicating a relative positional relationship of the individual image data,
Generating means for generating arrangement data in which the individual image data is arranged on the projection plane in which the aspect ratio is calculated based on the aspect ratio calculated by the calculating means and the position data of the individual data;
Projection means for projecting the image display data onto the projection plane based on the arrangement data generated by the generation means;
A projection apparatus comprising:

[Claim 14]
A computer included in a projection apparatus including storage means for storing image display data for displaying an image by projection,
While functioning as a calculation means for calculating the aspect ratio of the projection surface for projecting the image,
The image display data includes individual image data for displaying and displaying a display element in a virtual plane having an arbitrary aspect ratio, and position data indicating a relative position of the display element in the virtual plane. ,
Generating means for generating rearrangement data obtained by rearranging display elements arranged in the virtual plane at positions indicated by the position data on the projection plane based on the aspect ratio calculated by the calculation means;
Projection means for projecting the image onto the projection plane based on the rearrangement data generated by the generation means;
The computer-readable program is characterized in that it is made to function as a computer program.

[Claim 15]
A projection method in an apparatus comprising storage means for storing image display data displayed by projection,
A calculation step of calculating an aspect ratio of a projection surface onto which the image display data is projected,
The image display data includes individual image data and position data indicating a relative positional relationship of the individual image data,
Based on the aspect ratio calculated by the calculation means and the position data of the individual data, a generation step of generating arrangement data in which the individual image data is arranged on the projection plane with the aspect ratio calculated;
A projection step of projecting the image display data onto the projection plane based on the arrangement data generated by the generation step;
A projection method comprising:

DESCRIPTION OF SYMBOLS 1 Projector 11 Control part 12 Input / output interface 13 Image conversion part 14 Display encoder 15 Display drive part 16 Input / output connector part 19 Display element 21 Movable lens group 22 Lens motor 23 Image compression / expansion part 25 Key / indicator part 32 Light source control circuit 51 Projection Unit 52 Imaging Unit 53 DSP
54 Imaging Device 55 Imaging Lens 101-103 Projection Surface 111 ROM
112 RAM
QI Inscribed rectangle QO Inscribed rectangle R Reference projection plane

Claims (15)

Storage means for storing image display data displayed by projection;
Calculating means for calculating an aspect ratio of a projection surface for projecting the image display data;
The image display data includes individual image data and position data indicating a relative positional relationship of the individual image data,
Generating means for generating arrangement data in which the individual image data is arranged on the projection plane in which the aspect ratio is calculated based on the aspect ratio calculated by the calculating means and the position data of the individual data;
Projection means for projecting the image display data onto the projection plane based on the arrangement data generated by the generation means;
A projection apparatus comprising: The individual image data is plural,
The projection apparatus according to claim 1, wherein the generation unit generates arrangement data in which a plurality of individual image data is arranged at a position indicated by the position data on the projection plane. The image display data includes size data indicating a relative size of the individual image data in a virtual plane,
The projection apparatus according to claim 1, wherein the generation unit generates arrangement data in which the individual image data is arranged on the projection plane in a size indicated by the size data based on the size data. The image display data includes priority data indicating a priority in the virtual plane of the individual image data,
The generating unit displays individual image data having a high priority according to the priority data in the case where adjacent display elements overlap when the individual image data arranged on the virtual plane is arranged in the projection plane. The projection apparatus according to claim 2, wherein arrangement data arranged on the screen is generated.   The projection apparatus according to claim 1, wherein the position data is x, y coordinate data of a virtual plane.   The projection apparatus according to claim 1, wherein the individual image data is content related to an advertisement. The calculation means includes imaging means for imaging the projection plane,
The projection apparatus according to claim 1, wherein an aspect ratio is calculated based on an image of the projection plane imaged by the imaging unit. The calculation unit includes an extraction unit that extracts an outline of the projection plane based on an image captured by the imaging unit,
The projection apparatus according to claim 7, wherein an aspect ratio is calculated based on the contour extracted by the extraction unit. The calculation means includes first determination means for determining whether the outline of the projection plane extracted by the extraction means is rectangular or non-rectangular,
9. The projection apparatus according to claim 8, wherein, when the non-rectangular shape is determined by the first determination unit, a circumscribing rectangle circumscribing the outline is set as a projection plane, and an aspect ratio thereof is calculated. The calculation means includes second determination means for determining whether or not the image is lost due to a partial loss of the projection plane when the circumscribed rectangle is a projection plane.
10. The projection apparatus according to claim 9, wherein, when the second determination unit determines that the omission occurs, an inscribed rectangle inscribed in the contour is set as a projection plane, and an aspect ratio thereof is calculated. The calculation means includes third determination means for determining whether or not there is a non-projectable area that should not be projected on the projection plane,
11. The aspect ratio according to claim 1, wherein when the third determination unit determines that there is the non-projectable region, the aspect ratio is calculated using the remaining region excluding the region as a projection plane. The projection device described. The storage means further stores background display data for displaying a background by projection,
12. The projection apparatus according to claim 1, wherein the projection unit superimposes and displays the image on the background based on the image display data and background display data. A computer included in a projection apparatus including storage means for storing image display data displayed by projection;
A calculation means for calculating an aspect ratio of a projection surface for projecting the image display data;
The image display data includes individual image data and position data indicating a relative positional relationship of the individual image data,
Generating means for generating arrangement data in which the individual image data is arranged on the projection plane in which the aspect ratio is calculated based on the aspect ratio calculated by the calculating means and the position data of the individual data;
Projection means for projecting the image display data onto the projection plane based on the arrangement data generated by the generation means;
A projection apparatus comprising: A computer included in a projection apparatus including storage means for storing image display data for displaying an image by projection,
While functioning as a calculation means for calculating the aspect ratio of the projection surface for projecting the image,
The image display data includes individual image data for displaying and displaying a display element in a virtual plane having an arbitrary aspect ratio, and position data indicating a relative position of the display element in the virtual plane. ,
Generating means for generating rearrangement data obtained by rearranging display elements arranged in the virtual plane at positions indicated by the position data on the projection plane based on the aspect ratio calculated by the calculation means;
Projection means for projecting the image onto the projection plane based on the rearrangement data generated by the generation means;
The computer-readable program is characterized in that it is made to function as a computer program. A projection method in an apparatus comprising storage means for storing image display data displayed by projection,
A calculation step of calculating an aspect ratio of a projection surface onto which the image display data is projected,
The image display data includes individual image data and position data indicating a relative positional relationship of the individual image data,
Based on the aspect ratio calculated by the calculation means and the position data of the individual data, a generation step of generating arrangement data in which the individual image data is arranged on the projection plane with the aspect ratio calculated;
A projection step of projecting the image display data onto the projection plane based on the arrangement data generated by the generation step;
A projection method comprising:

Images