JP2010212917A - Projector device, projection method of the same, projection program of the same, and portable terminal device including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a projected image projected on a projection face more visible without being affected by a pattern or contamination of the projection face. <P>SOLUTION: When projection is executed by a projector, an image, having a whole single-color and being an image having a color that makes a projection face visible via the single-color projected image, for example, an all-white image being entirely white is projected from the projector, and then, the projection face of the all-white image is imaged by a main camera. When a projection original image is projected on the basis of the imaged image of the projection face on which the all-white image is projected, a texture correcting image capable of correcting the projection original image is formed so as to make contamination or a pattern or the like of the projection face inconspicuous. The texture correcting image is projected while overlapping it on the projection original image. By this, it is possible to make contamination or a pattern or the like of the projection face inconspicuous with respect to the projected image so as to make the projected image more visible. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention is applied to a mobile phone, a PHS phone (PHS: Personal Handyphone System), a PDA device (PDA: Personal Digital Assistant), a portable game machine, a notebook personal computer device, etc. in addition to a stationary projector device. The present invention relates to a preferred projector device, a projection method for the projector device, a projection program for the projector device, and a portable terminal device including the projector device.
In particular, by correcting the projection image with a texture corresponding to the dirt or pattern on the projection surface detected based on the image captured by the camera, the projection image is clearly affected without being affected by the dirt or pattern on the projection surface. The present invention relates to a projector device capable of obtaining a simple projected image, a projection method for the projector device, a projection program for the projector device, and a portable terminal device including the projector device.

  Nowadays, a portable terminal device provided with a projector device is known. For example, Japanese Unexamined Patent Application Publication No. 2006-91111 (Patent Document 1) discloses a mobile terminal device provided with a projector device that can correct a trapezoidal distortion of a projected image during projection. Yes.

  In other words, the projector device is configured to display a display object corresponding to the projection light on the screen by irradiating the screen with projection light (projection method). If the projection light is not projected so that the projection light is perpendicular to the screen, the display object on the screen is distorted into a trapezoidal shape, for example. The technique disclosed in Patent Document 1 is a technique for correcting this trapezoidal distortion.

  Specifically, in the case of the technique disclosed in Patent Document 1, a projection image generated by the projector module is taken by the camera module. And based on the picked-up image of the projection image image | photographed with this camera module, the calibration correction | amendment which superimposes the predetermined figure for specifying the shape of the said projection image with respect to a projection image is performed. As a result, the trapezoidal distortion is corrected.

JP 2006-91111 A

  Here, the installation type projector apparatus is often used in a place where the projector apparatus is installed, and a dedicated screen or white wall for performing projection is provided in the place where the projector apparatus is installed. In many cases, a whiteboard or the like is provided. For this reason, it is unlikely that the projection image becomes difficult to see due to the presence of dirt, patterns, or the like on the projection surface of the projection image.

  However, since the mobile terminal device is carried, it is not known where the projection image projected by the projector device provided in the mobile phone device is performed. That is, projection is not always performed at a place where a projection surface for projection, such as the dedicated screen, white wall, or white board, is provided. Rather, it is easily expected that there are more opportunities for the projection to be performed at a place other than the place where the projection surface for projection is provided. A problem that arises when projection is performed at a place other than the place where the projection plane for projection is provided is that the projected image becomes difficult to see due to dirt or patterns on the projection plane.

  Note that in a portable terminal device provided with a projector device, it is not preferable to use the projector device by using the projection surface for projection because it restricts the portability of the portable terminal device. .

  The present invention has been made in view of the above-described problems, and is a projector device that can obtain an easy-to-see projection image without being affected by dirt or a pattern on the projection surface, a projection method for the projector device, and a projector An object of the present invention is to provide a projection program for a device and a portable terminal device including the projector device.

In order to solve the above-described problems, a projector device according to the present invention provides
A projection unit for performing projection on the projection plane;
A camera unit for imaging the projection plane;
Before the projection image is projected, the projection is performed so that the entire projection surface is monochromatic and the monochromatic image is a color image in which the projection plane can be visually recognized through the monochromatic projection image. A monochromatic image projection control unit for controlling the unit;
An imaging control unit that controls the camera unit so as to capture the projection surface on which the monochromatic image is projected via the projection unit by the monochromatic image projection control unit;
A texture-corrected image that forms a texture-corrected image for correcting at least dirt and a pattern on the projection surface so as to be inconspicuous based on a captured image of the projection surface captured by the imaging control unit via the camera unit Forming part;
An overlay processing unit that forms a projection image obtained by superimposing the texture correction image formed by the texture correction image forming unit on a projection source image during projection;
A projection control unit that controls the projection unit to project the projection image formed by the overlay processing unit during projection.

  Such a projector device projects a monochromatic image, such as an all-white image, which is an image of a color that is entirely monochromatic and that allows the projection plane to be visually recognized through this monochromatic projection image before projection. And the projection surface of this monochromatic image is imaged by the camera unit. Then, based on the captured image of the projection surface on which the monochromatic image is projected, a texture-corrected image that can correct the projection source image so that the projection surface is not conspicuous when the projection source image is projected. And the texture-corrected image is projected on the projection source image. As a result, dirt and patterns on the projection surface can be made inconspicuous with respect to the projection image, and the projection image can be easily viewed.

  According to the present invention, an easy-to-see projection image can be obtained without being affected by dirt or a pattern on the projection surface.

It is a block diagram of a mobile phone as an embodiment to which the present invention is applied.

It is a flowchart which shows the flow of the texture correction | amendment operation | movement in the projector of the mobile telephone used as an Example. It is a block diagram of the mobile telephone of an Example used as the principal part at the time of a texture correction | amendment operation | movement. It is a figure for demonstrating the specific example of the texture correction | amendment operation | movement in the projector of the mobile telephone used as an Example.

The present invention can be applied to, for example, a mobile phone that performs wireless communication in accordance with a CDMA communication system (CDMA: Code Division Multiple Access).

[Configuration of mobile phone]
A mobile phone according to an embodiment to which the present invention is applied is shown in FIG. As can be seen from FIG. 1, the mobile phone of this embodiment has a projector 11. The projector 11 is a front projection type projector, and includes a liquid crystal panel that displays an original image to be projected, a light source that irradiates the liquid crystal panel with projection light, and a projection original image that is displayed on the liquid crystal panel. A projection optical system for projecting to the projector.

  The projector is roughly classified into a projection method and there are two methods, a liquid crystal method and a DLP (Digital Light Processing) method, and the projector 11 may be any of these methods.

  A main LCD (Liquid Crystal Display) 12 is a main liquid crystal display provided in the mobile phone. The LCDC 13 is a liquid crystal display controller that controls the operation and display of the main LCD 12.

  The LED (light emitting diode) 14 is various illumination light sources provided in the mobile phone such as an incoming lamp or an illumination lamp of the keypad 45, for example. The LED driver 15 drives and controls each such LED 14.

  When a physical vibration is applied to the mobile phone, the acceleration sensor 16 detects the magnitude and direction of the acceleration of the vibration. As will be described later, when the projector 11 performs projection, the cellular phone projects a projected image that has been subjected to texture correction in accordance with dirt or a pattern on the projection surface. Then, according to the vibration detected by the acceleration sensor 16, the place where the texture correction is performed is corrected. For this reason, the detection signal of the acceleration sensor 16 is supplied to the CPU 10.

  When a physical vibration is applied to the mobile phone, the gyro sensor 17 detects an angular velocity and a rotation angle in a rotation direction due to the vibration. The detection signal of the gyro sensor 17 is sent to the CPU 10.

  The illuminance sensor 18 detects the brightness of the surrounding environment of the mobile phone. The detection signal of the illuminance sensor 18 is sent to the CPU 10.

  The receiver 19 is a speaker for outputting a received voice when a voice call or the like is performed on the mobile phone.

  The microphone 20 is a voice input device for inputting a transmitted voice when a voice call or the like is performed on the mobile phone.

  The external interface (I / F) 21 includes an external connection unit for performing signals and the like between various external connectors and the external connectors. The external connector includes a so-called USB 2.0 (Universal Serial Bus 2.0) standard connector. For this reason, the mobile phone also includes a USB 2.0 controller 22.

  The USIM card slot 23 is an IC card slot in which a so-called USIM (Universal Subscriber Identity Module) card storing subscriber information (contractor information) and the like is mounted.

  The infrared communication module 24 is a communication device for performing information communication using infrared rays.

  The vibration motor 25 is a so-called vibrator for generating a vibration in the casing of the mobile phone at the time of outgoing / incoming calls or the like to notify the user of incoming / outgoing calls or the like.

  The battery 26 is a power source used for each part of the mobile phone.

  The peripheral IC + power supply IC 27 is connected to the USIM card slot 23, the infrared communication module 24, the vibration motor 25, the battery 26, and the external interface 21. In addition to controlling these parts and signal processing, the power supply control of the battery 26 is performed. Etc.

  The main camera 31 is a camera unit that mainly captures a desired subject, and includes a photographic optical system, an imaging device, and the like. The flash (flash light) 33 is a light source lamp for emitting photographing auxiliary light at the time of photographing with the camera. The flash light controller 32 controls the light emission of the flash 33 in conjunction with the shooting of the main camera 31.

  The sub-camera 34 is a camera unit provided separately from the main camera 31 and is used for photographing the user himself during so-called self-portrait, or photographing the user himself during a telephone call.

  The RF circuit 35 is a circuit for wireless communication when the mobile phone communicates with a wireless base station of the mobile phone network. The antenna 36 is a wireless communication antenna when the mobile phone performs wireless communication with a wireless base station.

  The non-contact communication card controller 37 performs various controls and signal processing for performing signal communication with the non-contact communication IC card by a so-called electromagnetic induction method. The non-contact communication card antenna 38 is an antenna for non-contact communication by the electromagnetic induction method.

  The short-range wireless communication controller 39 performs various controls and signal processing for performing wireless communication using a short-range wireless communication method such as Bluetooth (registered trademark). The near field communication antenna 40 is an antenna for performing near field communication such as Bluetooth.

  The digital TV tuner 41 is a so-called tuner for digital television broadcasting. The digital TV antenna 42 is an antenna for receiving the digital television broadcast radio wave.

  The memory card slot 44 is a slot into which an external memory card such as a so-called SD (Secure Digital) card is attached or detached. The memory card controller 43 performs control and signal processing such as data writing / reading with respect to a memory card mounted in the memory card slot 44.

  The keypad 45 generates various keys provided on the mobile phone and key output signals when the keys are operated by the user.

  The internal memory 46 includes, for example, a DDR SDRAM (Double Data Rate SDRAM) 47 and a NAND flash memory (NAND-type flash memory) 48. The NAND flash memory 48 includes various programs such as an OS (Operating System) program, a control program for the CPU 10 to control each unit, and a projection program for performing projection with texture correction (to be described later) performed by the projector 11. In addition to the application program, compression-coded music / moving image / still image data content, various setting values, font data, each dictionary data, model name information, terminal identification information, and the like are stored. The DDR SDRAM 47 stores data as needed as a work area when the CPU 10 performs various data processing and calculations.

  The audio chip 49 is an IC circuit for performing signal processing such as music reproduction. A right speaker 50 and a left speaker 51 for stereo sound output are connected to the sound chip 49.

  A CPU (Central Processing Unit) 10 performs communication control, audio processing and control, image processing and control, other various signal processing, control of each unit, and the like. The CPU 10 executes various control programs and application programs stored in the internal memory 46 and performs various data processing associated therewith. In particular, in the case of the mobile phone of this embodiment, the CPU 10 executes the projection program stored in the internal memory 46 to perform the texture correction according to the dirt or pattern on the projection surface during projection by the projector 11. A projected image is formed, and the portion subjected to the texture correction is corrected according to the vibration detected by the acceleration sensor 16 and the gyro sensor 17. Details will be described later.

Although not shown in FIG. 1, the cellular phone according to the embodiment naturally includes components included in a general cellular phone.

[Correction of projected image]
Next, the operation of correcting the projection image of the projector 11 in the mobile phone of the embodiment having such a configuration will be described.

  When a desired image is projected using the projector 11, the user designates activation of the projector 11 by operating the keypad 45 shown in FIG. 1. When detecting the startup operation of the projector 11 performed via the keypad 45, the CPU 10 executes texture correction of the projected image shown in the flowchart of FIG. 2 based on the projection program stored in the NAND flash memory 48.

  First, in step S1, the CPU 10 determines whether or not it is set to use the texture correction function. That is, in the mobile phone according to this embodiment, when the projector 11 is used for projection, the user sets whether to use the texture correction function. This setting is, for example, a setting that uses the texture correction function by default, but the user can manually set the texture correction function not to be used. The setting information is stored in the NAND flash memory 48, although it is an example.

  Therefore, when the CPU 10 determines in step S1 whether or not to use the texture correction function by reading the setting information stored in the NAND flash memory 48 and determines that the texture correction function is to be used. Advances the process to step S2. If it is determined that the texture correction function is not used, the process advances to step S8.

  In this example, whether or not to use the texture correction function is set in advance by the user. However, when the projector 11 is activated, the CPU 10 selects whether or not to use the texture correction function. A selection menu may be displayed on the LCD 12 so that the user can select whether or not to use this texture correction function when starting the projector 11.

  Next, when the process proceeds to step S2 by determining that the texture correction function is used in step S1, the CPU 10 activates the main camera unit 31 and proceeds to step S3. In step S3, The projector 11 is activated and controlled.

  Next, in step S4, the CPU 10 projects a single color image which is an image of a color which is entirely monochromatic on the projection surface and which allows the projection surface to be visually recognized via the single color projection image. 11 is controlled. Specifically, FIG. 3 is a block diagram and a functional block diagram of the main part of the mobile phone. As can be seen from FIG. 3, when the projector 11 performs projection, the CPU 10 mainly It functions as a texture-corrected image forming unit 61, a projected image forming unit 62, and a determining unit 63. In step S <b> 4, the CPU 10 functions as the projection image forming unit 62 to form, for example, a white image (all white image) as a whole, and supplies this to the projector 11. As a result, the all-white image is projected onto the projection surface via the projector 11.

  In this example, an all white image that is entirely white is projected onto the projection surface. However, this is a color that is entirely monochromatic and that allows the projection surface to be visually recognized through this monochromatic projection image. If the image is a single color image, for example, a projection image of another color such as yellow, light blue, or green may be projected. However, in the case of the mobile phone of this embodiment, as described below, the projection image is picked up by the main camera unit 31 to recognize dirt and patterns on the projection surface. It is preferable to project a projected image of a bright color close to white as the projected image projected onto the screen.

  Next, in step S5, the CPU 10 controls the imaging of the main camera unit 31 so as to capture the projection plane on which the all-white image is projected, and displays the all-white image on the projection plane imaged by the main camera unit 31. 3 is stored in the first storage area 47a of the DDR SDRAM 47 shown in FIG.

  Next, in step S6, the CPU 10 functions as the texture corrected image forming unit 61 shown in FIG. 3 to project the projection source image based on the all white image stored in the first storage area 47a of the DDR SDRAM 47. In this case, a texture correction image capable of correcting the projection source image is formed so that dirt or a pattern on the projection surface is not noticeable, and the process proceeds to step S7.

  In step S7, the CPU 10 functions as the projection image forming unit 62 shown in FIG. 3 so that the texture-corrected image formed in step S6 is applied to the projection source image read from the second storage area 47b of the DDR SDRAM 47. Is formed as a projected image. In step S8, the projector 11 is controlled to project this projection image.

  The operation in steps S5 to S8 will be described with a specific example. First, FIG. 4A is a diagram illustrating an example of a captured image in which the main camera unit 31 captures a projection plane in a state where an all white image is projected. In this example, the projection plane has hatched patterns in the upper left half and lower right half regions.

  On the other hand, FIG. 4B shows an example of the projection source image. When the projection source image shown in FIG. 4B is projected onto the projection plane as it is, the pattern of the projection plane is reflected in the projection source image as shown in FIG. 4C, and the projection source image becomes difficult to see. .

  For this reason, the CPU 10 functions as the texture-corrected image forming unit 61 in step S <b> 6 so that the projection surface is not conspicuous based on the all-white image of the projection surface captured by the main camera unit 31. In this way, a texture corrected image capable of correcting the projection original image is formed.

  Specifically, in the case of this example, the all-white image on the projection surface is an image in which hatched patterns exist in each of the upper left half and lower right half as shown in FIG. For this reason, as shown in FIG. 4D, the CPU 10 forms a texture-corrected image having the same pattern as the pattern existing on the projection plane in the area opposite to the area where the pattern exists on the projection plane. . That is, in the case of this example, the CPU 10 forms a texture correction image in which hatched patterns exist in the upper right half and lower left half regions as shown in FIG.

  Then, in step S7, the CPU 10 forms a projection image in which the projection original image shown in FIG. 4B and the texture correction image shown in FIG. Project to. As a result, when the projection image is projected onto the projection plane, as shown in FIG. 4E, the oblique line pattern applied to the upper right half and lower left half areas of the projection image and the upper left half of the projection plane. In addition, an oblique line pattern that originally exists in each of the lower right half regions is connected, and a projection image in which the pattern on the projection surface is reflected as a whole can be obtained.

As shown in FIG. 4C, when the pattern of the projection surface is partially reflected in the projection image, the projection image becomes difficult to see. Thus, the pattern of the projection plane can be reflected in the entire projection image, and as shown in FIG. 4E, the projection image can be easily viewed corresponding to the pattern of the projection plane.

[Automatic detection of texture correction]
Here, the mobile phone of this embodiment reflects the pattern of the projection surface (stain or dirt, etc.) on the entire projection image in this way to improve the visibility of the projection image. (Stain or stain etc.) is black or a dark color close to black, and if this is reflected in the entire projected image by the above-described texture correction, the entire projected image will be dark, and the projected image will be difficult to see. There is a fear. Further, when the pattern on the projection surface is white or a light color close to a transparent color, the projection image is not so difficult to see without performing the above-described texture correction.

  For this reason, when the CPU 10 captures an all-white image on the projection surface by the main camera unit 31 in step S4, the CPU 10 performs color analysis on the all-white image to determine whether the pattern on the projection surface is darker than a predetermined color. And whether the pattern on the projection surface is lighter than a predetermined color. That is, the CPU 10 determines the first threshold value for determining whether the projection surface pattern or the like is darker than a predetermined color and the first threshold value for determining whether the projection surface pattern or the like is lighter than the predetermined color. 2 has a threshold value of 2, and it is determined that the pattern on the projection surface is a bright color not less than the first threshold value and the pattern on the projection surface is a dark color not more than the second threshold value. In this case, the texture correction image is formed and the texture correction process of the projection source image is performed.

  As a result, the above-mentioned texture correction can prevent the inconvenience that the entire projected image becomes dark and the projected image is difficult to see. Ignore patterns that do not affect the visibility of the projected image. Projection images can be projected.

If the CPU 10 determines that the texture correction is not performed by the determination using the threshold values, the CPU 10 controls the projector 11 to project the projection image as it is in step S8.

[Texture correction vibration compatible operation]
Next, in step S8, when the projector 11 is controlled to project the projection image, the CPU 10 advances the process to step S9. When projection by the projector is started, the CPU 10 acquires vibration detection outputs from the acceleration sensor 16 and the gyro sensor 17 shown in FIGS. 1 and 3 at predetermined intervals. In step S9, the presence / absence of vibration physically applied to the casing of the mobile phone is detected. If the CPU 10 determines that vibration is applied to the casing of the mobile phone, the process proceeds to step S10, and vibration is not applied to the casing of the mobile phone. If it is determined, the process proceeds to step S12 to be described later.

  When the process proceeds to step S10 by determining that vibration is applied to the casing of the mobile phone, the CPU 10 corresponds to the vibration amount and the vibration direction detected by the acceleration sensor 16 and the gyro sensor 17. Then, the position where the texture correction image is superimposed is shifted, and the projection original image is superimposed. That is, the CPU 10 shifts the position of the texture-corrected image so as to be superimposed on the projection source image so as to be in the same state as when no vibration is applied.

In step S11, the CPU 10 controls the projector 11 to project the projection image formed by shifting the position in accordance with the vibration and performing the texture correction image overlay process.

In this way, by correcting the superimposed position of the texture-corrected image according to vibration, it is possible to project a projection image that is easy to see even when vibration is applied to the casing of the mobile phone. it can.

[Evaluation operation for texture correction]
Next, when the process proceeds to step S12 without detecting vibration in step S9 or in step S11 by correcting the superimposed position of the texture correction image according to the vibration and projecting the projection image, the CPU 10 Controls the main camera unit 31 so as to capture the projection surface on which the projection image is currently projected, and advances the process to step S13.

  In step S <b> 13, the CPU 10 functions as the determination unit 63 illustrated in FIG. 3, so that the current projection image captured by the main camera unit 31 and the CPU 10 functions as the projection image formation unit 62. Compare the supplied projection image. In step S <b> 14, the CPU 10 has the same image as the current projection image captured by the main camera unit 31 and the projection image supplied to the projector 11 by the CPU 10 functioning as the projection image forming unit 62. By determining whether or not there is, it is evaluated whether or not the texture correction is performed normally.

  That is, for example, when the user changes the projection plane and performs projection, the pattern of the projection plane and the like changes, so the current projection image captured by the main camera unit 31 and the projector 11 are supplied. The projected image is different from the projected image. The CPU 10 detects a difference between these images by image matching processing. If the difference between the images is greater than or equal to a predetermined value, it is determined that the texture correction is not normally performed, the process returns to step S4, and imaging of the projection plane on which the all white image is projected again is performed. The projector 11 and the main camera unit 31 are controlled so as to be performed, and a texture correction image is formed based on the captured image and is superimposed on the projection source image. Thereby, even when the user changes the projection plane and performs projection, texture correction can be performed corresponding to the changed projection plane, and an easy-to-see projection image can be obtained.

On the other hand, if it is determined in step S14 that the texture correction has been performed normally, the CPU 10 advances the process to step S15, and determines whether or not a projection end operation has been performed by the user via the keypad 45. If it is determined that the projection end operation has not been performed, the process returns to step S8, the projector 11 is controlled to continue projection of the projected image, and it is determined that the projection end operation has been performed. The projector 11 and the main camera unit 31 are turned off, and all the processes in the flowchart of FIG.

[Effect of Example]
As is apparent from the above description, when the projector 11 performs projection with the projector 11, the projector 11 projects an entirely white image from the projector 11, and the projection surface of the all white image is used as the main projection surface. The camera unit 31 takes an image. Then, based on the captured image of the projection surface on which the all-white image is projected, texture correction that can correct the projection source image so that the projection surface is not conspicuous when the projection source image is projected. An image is formed, and this texture-corrected image is projected superimposed on the projection source image. As a result, dirt and patterns on the projection surface can be made inconspicuous with respect to the projection image, and the projection image can be easily viewed.

  Further, the acceleration sensor 16 and the gyro sensor 17 detect vibration applied to the casing of the mobile phone, and correct the superimposed position of the texture correction image according to the vibration. Thereby, even when vibration is applied to the casing of the mobile phone, the texture-corrected image can be accurately superimposed on the projection source image, and an easy-to-see projection image can be projected. .

Further, for example, at a predetermined time interval, the projection surface on which the projection image is currently projected is captured by the main camera unit 31 and supplied to the projector 11 and the current projection image captured by the main camera unit 31. Compare with the projected image. Then, when the current projected image captured by the main camera unit 31 and the projected image supplied to the projector 11 are different from each other by a predetermined amount or more, the above-described all white image is projected again. The projector 11 and the main camera unit 31 are controlled so as to capture the projection plane, and a texture correction image is formed based on the captured image, and is superimposed on the projection source image. Thereby, even when the user changes the projection plane and performs projection, texture correction can be performed corresponding to the changed projection plane, and an easy-to-see projection image can be obtained.

[Modification]
In the above description of the embodiments, the present invention is applied to a mobile phone. However, the present invention is not limited to a stationary projector device, but also a PHS phone (PHS: Personal Handyphone System), a PDA device (PDA: It can be applied to other devices such as a personal digital assistant), a portable game machine, a notebook personal computer device, and a desktop personal computer device. In either case, the same effect as described above can be obtained.

  Finally, the above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiments, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea according to the present invention. Let me add that.

  10 CPU, 11 Projector, 12 LCD, 13 LCDC, 14 LED, 15 LED driver, 16 Acceleration sensor, 17 Gyro sensor, 18 Illuminance sensor, 19 Receiver, 20 Microphone, 21 External interface, 22 USB2.0 controller, 23 USIM card Slot, 24 Infrared communication module, 25 Vibration motor, 26 Battery, 27 Peripheral IC + power supply IC, 31 Main camera, 32 Flash light controller, 33 Flash, 34 Sub camera, 35 RF circuit, 36 Antenna, 37 Non-contact communication card controller 37 38 Non-contact communication card antenna, 39 Near field communication controller, 40 Near field communication antenna, 41 Digital TV tuner, 42 Digital TV antenna NA, 43 Memory card controller, 44 Memory card slot, 45 Keypad, 46 Internal memory, 47 DDR SDRAM, 48 NAND flash memory, 49 Audio chip, 50 Right speaker, 51 Left speaker, 61 Texture correction image forming unit, 62 Projection image forming unit, 63 determination unit

Claims (6)

A projection unit for performing projection on the projection plane;
A camera unit for imaging the projection plane;
Before the projection image is projected, the projection is performed so that the entire projection surface is monochromatic and the monochromatic image is a color image in which the projection plane can be visually recognized through the monochromatic projection image. A monochromatic image projection control unit for controlling the unit;
An imaging control unit that controls the camera unit so as to capture the projection surface on which the monochromatic image is projected via the projection unit by the monochromatic image projection control unit;
A texture-corrected image that forms a texture-corrected image for correcting at least dirt and a pattern on the projection surface so as to be inconspicuous based on a captured image of the projection surface captured by the imaging control unit via the camera unit Forming part;
An overlay processing unit that forms a projection image obtained by superimposing the texture correction image formed by the texture correction image forming unit on a projection source image during projection;
A projection control unit that controls the projection unit to project the projection image formed by the superimposition processing unit during projection; Having a vibration detection unit for detecting vibration applied to the projector device;
The projector apparatus according to claim 1, wherein the overlay processing unit corrects an overlay position of the texture correction image to be overlaid on the projection source image according to a vibration amount and a vibration direction detected by the vibration detection unit. . A projection plane imaging control unit that controls the camera unit so as to capture a projection plane that is currently projecting a projection image during projection;
A comparison unit that compares the current projection image captured by the projection plane imaging control unit via the camera unit with the projection image projected by the projection unit;
When the comparison unit obtains a comparison result that is different from each image by a predetermined amount or more, the monochromatic image projection control unit controls the projection unit to reproject the monochromatic image onto the projection plane, The imaging control unit controls the camera unit so as to capture again the projection plane on which the monochrome image is reprojected, and the texture-corrected image forming unit captures the projection plane captured again by the camera unit. Based on the image, a texture correction image for correcting at least dirt and a pattern on the projection surface so as to be inconspicuous is formed, and the overlay processing unit is formed by the texture correction image forming unit at the time of projection. A projection image is formed by superimposing the texture correction image on the projection source image, and the projection control unit is configured to project the projection image formed by the overlay processing unit during projection. The projector apparatus according to claim 1 or claim 2 for controlling the projection unit to project. Before the projection image is projected by the monochromatic image projection control unit, the monochromatic image is a color image that is entirely monochromatic with respect to the projection plane and that allows the projection plane to be visually recognized through the monochromatic projection image. A monochromatic image projecting step for controlling the projection unit to project
An imaging control step for controlling the camera unit so that the imaging control unit images the projection plane on which the monochrome image is projected via the projection unit by the monochrome image projection control unit in the monochrome image projection step;
The texture-corrected image forming unit makes at least the dirt and the pattern on the projection surface inconspicuous based on the captured image of the projection surface captured by the imaging control unit via the camera unit in the imaging control step. A texture-corrected image forming step for forming a texture-corrected image for correction;
An overlay processing step for forming a projection image obtained by superimposing the texture correction image formed by the texture correction image forming unit in the texture correction image forming step on the projection source image at the time of projection; ,
A projection method for a projector device, comprising: a projection control unit that controls the projection unit so that the projection control unit projects the projection image formed by the overlay processing unit in the overlay processing step during projection. Before projecting a projection image, the projection unit projects a monochromatic image that is a single color image on the projection plane and is a color image that allows the projection plane to be viewed through the monochromatic projection image. The computer functions as a monochromatic image projection control unit for controlling
By causing the computer to function as the monochromatic image projection control unit, the computer is caused to function as an imaging control unit that controls the camera unit so as to capture the projection surface on which the monochromatic image is projected via the projection unit.
Texture correction for correcting at least dirt and patterns on the projection surface so as to be inconspicuous based on a captured image of the projection surface captured through the camera unit by causing the computer to function as the imaging control unit. The computer functions as a texture-corrected image forming unit that forms an image,
At the time of projection, the computer functions as an overlay processing unit that forms a projection image obtained by superimposing the texture correction image formed on the projection source image by causing the computer to function as the texture correction image forming unit,
A projection program for a projector device, which causes a computer to function as a projection control unit that controls the projection unit to project the projection image formed by causing the computer to function as the overlay processing unit during projection. A projection unit for performing projection on the projection plane;
A camera unit for imaging the projection plane;
Before projecting a projection image, the monochromatic image is projected on the projection plane so that the entire monochromatic image is a color image in which the projection plane is visible through the monochromatic projection image. A monochromatic image projection control unit for controlling the projection unit;
An imaging control unit that controls the camera unit so as to capture the projection surface on which the monochromatic image is projected via the projection unit by the monochromatic image projection control unit;
A texture-corrected image that forms a texture-corrected image for correcting at least dirt and a pattern on the projection surface so as to be inconspicuous based on a captured image of the projection surface captured by the imaging control unit via the camera unit Forming part;
An overlay processing unit that forms a projection image obtained by superimposing the texture correction image formed by the texture correction image forming unit on a projection source image during projection;
And a projection control unit that controls the projection unit to project the projection image formed by the overlay processing unit during projection.

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