JP2012208256A - Projection device, projection method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a projection image and an image quality adjustment screen so as not to be overlapped with each other when executing image quality adjustment of the projection image.SOLUTION: A projection device includes: an input unit 15 in which image data is inputted; a program memory 11 for storing reduction magnification information showing preset reduction magnification of the image data inputted in the input unit; a projection unit 17 for projecting the image data toward a projection target; a projection control unit 18 for switching between a projection mode of projecting an image according to the image data inputted in the input unit and an image quality adjustment mode of projecting an image quality adjustment screen for adjusting image quality of the image projected by the projection unit, and performing projection while dividing projection regions for the image reduced based on the reduction magnification information and according to the image data inputted in the input unit and the image quality adjustment screen; and an image quality adjustment unit 20 for adjusting image quality of the image projected by the projection unit in a state that the image quality adjustment screen is projected by the projection control unit.

Description

  The present invention relates to a projection apparatus, a projection method, and a program suitable for a projector apparatus and the like.

  2. Description of the Related Art Conventionally, in order to perform image quality adjustment of a projected image, a screen for image quality adjustment is displayed on the projected image, and the image display apparatus performs image quality adjustment of the projected image using the image quality adjustment screen. Was considered. (For example, Patent Document 1)

JP 2007-74347 A

  In conventional techniques including those described in the above-mentioned patent documents, in order to display an image quality adjustment screen on the projection image, a part of the projection image is hidden by the image quality adjustment screen, and the entire projection image is visually observed. However, there is a problem that image quality adjustment cannot be executed.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to display a projected image without hiding the image quality adjustment screen when performing the image quality adjustment of the projected image. An object of the present invention is to provide a projection apparatus, a projection method, and a program capable of performing image quality adjustment while viewing the entire image.

  According to one aspect of the present invention, an input unit that inputs image data, a storage unit that stores preset reduction rate information indicating a reduction rate of the image data input to the input unit, and the input unit A projection unit that projects input image data toward a projection target, a projection mode that projects an image according to the image data input to the input unit, and at least an image quality of an image projected by the projection unit is adjusted. An image quality adjustment mode for projecting an image quality adjustment screen for switching, and the input means reduced based on the reduction magnification information when the mode switching means switches from the projection mode to the image quality adjustment mode. A projection control unit that projects an image corresponding to the image data input to the image quality adjustment screen and a projection area; and a projection control unit. Wherein said projecting means in a state in which the image quality adjustment screen is projected and a quality adjustment means for adjusting the image quality of the image to be projected.

  According to the present invention, when performing image quality adjustment of a projection image, it is possible to display the projection image without hiding the image quality adjustment screen and perform image quality adjustment while viewing the entire projection image.

The functional block diagram which shows an example of a structure of the projection apparatus which concerns on one Embodiment of this invention. The schematic diagram which shows an example of the information memorize | stored in the program memory which concerns on the embodiment. 6 is a flowchart showing an example of the operation of the projection apparatus according to the embodiment. The schematic diagram which shows an example of the image according to the image data projected at the time of the projection mode by the projector which concerns on the same embodiment. FIG. 5 is a schematic diagram illustrating an example of an image corresponding to image data projected in an image quality adjustment mode by the projection apparatus according to the embodiment.

  Hereinafter, an embodiment of the present invention will be described in detail.

  FIG. 1 is a functional block diagram showing an example of the configuration of a projection apparatus according to an embodiment of the present invention. The projection apparatus 1 includes a program memory 11, a main memory 12, a video RAM (Random Access Memory) 13, a control unit 14, an input unit 15, an image conversion unit 16, a projection unit 17, a projection control unit 18, an operation unit 19, and image quality adjustment. A unit 20 and a display unit 21 are provided.

  Here, the program memory 11 is constituted by, for example, an EEPROM (non-electrically rewritable nonvolatile memory), and stores an operation program executed by the control unit 14 and various fixed data.

  Specifically, as shown in FIG. 2, the program memory 11 includes a plurality of type information indicating the type of image quality adjustment, and reduction ratio information indicating the reduction ratio for the input image set in association with each type information. I remember it. The reduction ratio is set, for example, according to the size of each image quality adjustment screen for each type of image quality adjustment. When the image quality adjustment screen is large, the input image is further reduced. In the present embodiment, the type information includes “color density”, “hue”, “color balance”, and “preset projection mode”. However, the present invention is not limited to this, and the type information includes, for example, “contrast”. Or “sharpness”. Supplementally, the “preset projection mode” is based on a plurality of items (for example, “presentation”, “theater”, “graphics”, “standard”, etc.) in which a plurality of types of information are combined in advance, depending on the viewing environment and the like. One can be specified.

  The program memory 11 also stores OSD image data for OSD (On Screen Display).

  The main memory 12 is constituted by, for example, an SRAM (Static RAM) and stores processing data and the like, and functions as a work memory.

  The video RAM 13 can be read / written by the projection control unit 18 and stores image data to be projected toward the projection target.

  The control unit 14 is configured by a CPU (Central Processing Unit) or the like, and is connected to each of the units 13 to 18, 20, and 21 via the system bus SB, and according to the operation program stored in the program memory 11, the projection device 1. To control the operation.

  The input unit 15 receives analog image signals of various standards, digitizes the received analog image signal, and transmits the digitized analog image signal to the image conversion unit 16 via the system bus SB.

  The image conversion unit 16 is also referred to as a scaler, and unifies the input image data transmitted from the input unit 15 into image data of a predetermined format suitable for projection, and transmits this image data to the projection control unit 18.

  When the projection unit 17 receives image data transmitted from the projection control unit 18 to be described later, the projection unit 17 projects the received image data toward the projection target.

  Upon receiving the image data transmitted from the image conversion unit 16, the projection control unit 18 develops and stores the received image data in the video RAM 13, and transmits the image data to the projection unit 17. The projection control unit 18 adjusts the projection mode for projecting an image corresponding to the image data received by the input unit 15 and the image quality of the image projected by the projection unit 17 in accordance with a user operation. Switches between image quality adjustment modes for projecting the image quality adjustment screen. Further, when switching from the projection mode to the image quality adjustment mode, the projection control unit 18 reads the reduction magnification information from the program memory 11 via the control unit 14 and transmits the read reduction magnification information to the image conversion unit 16.

  Upon receiving the reduction magnification information transmitted from the projection control unit 18, the image conversion unit 16 reduces the image data received by the input unit 15 based on the received reduction magnification information. The obtained image data is transmitted to the projection control unit 18. Upon receiving this image data transmitted from the image conversion unit 16, the projection control unit 18 reads out OSD image data from the program memory 11 via the control unit 14, and reads out the OSD read out from the received image data. After executing the mixing process for overwriting the image data, the image data obtained as a result of the mixing is developed and stored in the video RAM 13, and the image data is transmitted to the projection unit 17.

  The operation unit 19 includes a key operation unit provided in the main body of the projection apparatus 1 and a laser light reception unit that receives infrared light from a remote controller (not shown) dedicated to the projection apparatus, and the user can operate the key operation unit or Key operation information based on keys operated by the remote controller is directly output to the control unit 14.

  The key operation unit includes a cursor key (←, →) that can be pressed in the left-right direction, a designation key for designating various selection items, and a mode switching key for switching between the projection mode and the image quality adjustment mode. I have. In this embodiment, the cursor key can be pressed in the left-right direction. However, the present invention is not limited to this, and for example, a cursor key (↑, ↓, ←, →) that can be pressed in the up-down, left-right direction is applicable. It is. Furthermore, in the present embodiment, the key operation unit includes the cursor key, the designation key, and the mode switching key. However, the present invention is not limited to this, and may include a focus adjustment key, a cancel key, and the like.

  The image quality adjustment unit 20 adjusts the image quality of the image projected by the projection unit 17 in a state where the image quality adjustment screen is projected by the projection control unit 18. The image quality adjustment unit 20 adjusts the image quality of the image projected by the projection unit 17 by changing the parameter of the specified type information in accordance with an input from a cursor key or a designation key operated by the user. Further, the image quality adjustment unit 20 sequentially reflects the change in the parameter obtained as a result of the adjustment in the image projected by the projection unit 17.

  The display unit 21 is configured by an LED (light emitting diode) provided in the main body of the projection apparatus 1 and is an indicator that indicates the state of the projection apparatus 1 such as a projection mode, an image quality adjustment mode, and power off. For example, when the LED is lit, the projection device 1 is in the projection mode. When the LED is blinking, the projection device 1 is in the image quality adjustment mode, and the LED is turned off. The state indicates that the state of the projection apparatus 1 is a power-off state.

  In the present embodiment, the number of LEDs constituting the display unit 21 is one. However, the present invention is not limited to this. For example, the display unit 21 may be composed of a plurality of LEDs. In this case, a plurality of LEDs may be provided to indicate each state, and the state of the projection apparatus 1 may be indicated by whether or not each LED is in a lighting state.

  Next, the operation of the projection apparatus configured as described above will be described with reference to the flowchart of FIG. 3 and the schematic diagrams of FIGS.

  As described above, all the operations described below are executed after the control unit 14 develops and stores the operation program, fixed data, and the like read from the program memory 11 in the main memory 12.

  Further, it is assumed that image data projected in the projection mode by the projection unit 17 is expanded and stored in the video RAM 13. FIG. 4 is a schematic diagram showing an image corresponding to the image data projected by the projection unit 17 in the projection mode.

  Furthermore, it is assumed that the projection control unit 18 receives an input from a mode switching key provided in the operation unit 19 in the projection mode. That is, it is assumed that the mode switching key is pressed by the user in the projection mode.

  First, when the mode switching key is pressed by a user operation, the projection control unit 18 reads OSD image data indicating a menu screen from the main memory 12 via the control unit 14 (step S101).

  Subsequently, the projection control unit 18 reads out the image data projected in the projection mode from the video RAM 13, and executes a mixing process for overwriting the read-out image data with the OSD image data for the menu screen (Step S1). S102).

  Next, the projection control unit 18 develops and stores the image data obtained as a result of the mixing in the video RAM 13, and then causes the projection unit 17 to project the image data (step S103). In this case, the menu screen projected by the projection unit 17 is displayed superimposed on the image projected in the projection mode.

  Subsequently, the projection control unit 18 is displayed by specifying item information indicating “image quality adjustment” from among a plurality of item information displayed on the menu screen, and further specifying item information indicating image quality adjustment. One of the plurality of type information shown on the image quality adjustment menu screen is designated (step S104). Here, the projection control unit 18 designates one of “color density”, “hue”, “color balance”, and “preset projection mode” from a plurality of types of information in accordance with a user operation. Shall. The projection control unit 18 selects and specifies item information and type information in response to input from a cursor key and a designation key provided in the operation unit 19.

  Next, the projection control unit 18 reads the reduction magnification information associated with the specified type information from the main memory 12 via the control unit 14 (step S105).

  Subsequently, the projection control unit 18 reads out the image data projected by the projection unit 17 in the projection mode from the video RAM 13, and based on the reduction magnification information read from the main memory 12, the read image data is converted into an image conversion unit. It is reduced to 16 (step S106).

  Next, the projection control unit 18 reads OSD image data indicating an image quality adjustment screen for the designated type information from the main memory 12 via the control unit 14 (step S107).

  Subsequently, the projection control unit 18 performs a mixing process of mixing the read OSD image data with the image data reduced by the image conversion unit 16 (step S108).

Next, the projection control unit 18 develops and stores the image data obtained as a result of the mixing in the video RAM 13, and then causes the projection unit 17 to project the image data (step S109). Specifically, as shown in FIG. 5, the projection control unit 18 classifies the projection areas of the image g ₁ and the image quality adjustment screen g ₂ corresponding to the image data reduced by the image conversion unit 16, and g ₁ and the image quality adjustment screen g ₂ and is not to be projected onto the projection portion 17 so as to overlap.

  Subsequently, the projection control unit 18 determines whether or not the mode switching key is pressed by the user (step S110). Specifically, the projection control unit 18 determines whether an input from a mode switching key provided in the operation unit 19 has been received.

  If the determination result in step S110 indicates no (step S110: “No”), the projection control unit 18 determines whether or not the user has requested switching of type information (step S111). For example, the projection control unit 18 determines whether the user is requested to switch the type information depending on which of the cursor keys (←, →) provided in the operation unit 19 is received. If the determination result in step S111 indicates that a request is made (in other words, “the left cursor key (←) is pressed”) (step S111: “Yes”), the process returns to step S101 again.

  When the determination result in step S111 indicates NO (in other words, “the right cursor key (→) is pressed”) (step S111: “No”), the projection control unit 18 projects the projection by the projection unit 17. It is determined whether or not the user has requested adjustment of the image quality of the image according to the current image data (step S112). For example, the projection control unit 18 determines whether the adjustment of image quality is requested by the user, based on which of the cursor keys (←, →) provided in the operation unit 19 is received. If the determination result in step S112 indicates no (in other words, “the left cursor key (←) is pressed”) (step S112: “No”), the process returns to step S109 again.

  When the determination result of step S112 indicates that the determination result is requested (in other words, “right cursor key (→) is pressed”)) (step S111: “No”), the projection control unit 18 The image quality adjustment unit 20 is adjusted to adjust the image quality according to the image data projected at 17 (step S113). Specifically, the projection control unit 18 causes the image quality adjustment unit 20 to adjust the type information parameter specified in step S104 in response to an input from a cursor key and a designation key provided in the operation unit 19. The adjustment result is sequentially reflected in an image corresponding to the image data projected by the projection unit 17.

  When the adjustment of the image quality is completed in step S113, the process returns to step S109 again.

If the decision result in the step S110 indicates that the mode switching key is pressed: (step S110 "Yes"), the projection control unit 18 erases the OSD image data corresponding to the image quality adjustment screen _{g 2} (step S114).

Then, the projection control unit 18 returns the image data corresponding to the image _{g 1} to its original size (step S115).

  Thereafter, the projection control unit 18 develops and stores the image data restored to the original size in the video RAM 13, and then causes the projection unit 17 to project the image data (step S116).

  As described above in detail, according to the present embodiment, when the image quality adjustment of the projection image is executed, the projection image is displayed without being hidden by the image quality adjustment screen, and the image quality adjustment is executed while viewing the entire projection image. be able to.

  In the above embodiment, a plurality of type information indicating the type of image quality adjustment and the reduction ratio information set in association with each type information are stored, and the type of image quality adjustment is designated. It is possible to realize the division of the projection area according to the size of the image quality adjustment screen that is different for each type information.

  Furthermore, in the above embodiment, since the type information includes at least one of “color density”, “hue”, “color balance”, and “preset projection mode”, “color intensity”, When performing image quality adjustment of a projected image on a projection device that can adjust any of “Hue”, “Color Balance”, and “Preset Projection Mode”, the projected image is displayed without hiding the image quality adjustment screen. The image quality adjustment can be executed while viewing the entire projected image.

  In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the functions executed in the above-described embodiments may be combined as appropriate as possible. The above-described embodiment includes various stages, and various inventions can be extracted by an appropriate combination of a plurality of disclosed constituent elements. For example, even if several constituent requirements are deleted from all the constituent requirements shown in the embodiment, if an effect is obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

  The invention described in the scope of claims at the beginning of the filing of the present application will be appended.

  According to the first aspect of the present invention, there is provided input means for inputting image data, storage means for storing reduction ratio information indicating a reduction ratio of image data input to the input means, which is set in advance, and the input means. A projection unit for projecting image data input to the projection target, a projection mode for projecting an image according to the image data input to the input unit, and at least adjusting an image quality of the image projected by the projection unit An image quality adjustment mode for projecting an image quality adjustment screen for switching, and when the mode switching means switches from the projection mode to the image quality adjustment mode, the input reduced based on the reduction magnification information Projection control means for projecting an image according to image data input to the image and the image quality adjustment screen by dividing a projection area; and the projection control means Characterized in that more the image quality adjustment screen is a picture quality adjusting means for adjusting the image quality of an image to be projected the projection means in a state of being projected.

  The invention according to claim 2 further comprises designation means for designating a type of image quality adjustment in the invention according to claim 1, wherein the storage means includes a plurality of type information indicating the type of image quality adjustment, The reduction magnification information set in association with each type information is stored, and the projection control means reads out the reduction magnification information associated with the type designated by the designation means from the storage means and inputs it to the input means. A projection area of an image corresponding to the image data and the image quality adjustment screen is divided, and the image data input to the input unit is reduced and projected.

  The invention according to claim 3 is the invention according to claim 2, wherein the type information includes at least one of color density, hue, color balance, and a preset projection mode in which a plurality of type information is combined. It is characterized by that.

  The invention according to claim 4 is a projection method of an apparatus comprising: an input unit to which image data is input; and a projection unit that projects the image data input to the input unit toward a projection target, A preset storage mode for storing reduction magnification information indicating the reduction magnification of the image data input to the input unit; a projection mode for projecting an image according to the image data input to the input unit; and An image quality adjustment mode for projecting an image quality adjustment screen for adjusting an image quality of an image projected by the projection unit, a mode switching step for switching, and switching from the projection mode to the image quality adjustment mode in the mode switching step, A projection control step of projecting by dividing a projection area between an image according to the image data input to the input unit reduced based on the reduction magnification information, and the image quality adjustment screen; And having a quality adjustment process of said projecting portion by the projection control unit in a state in which the image quality adjustment screen is projected to adjust the image quality of the image to be projected.

  The invention according to claim 5 is executed by a computer built in a projection apparatus including an input unit to which image data is input and a projection unit that projects the image data input to the input unit toward a projection target. A storage unit for storing reduction ratio information indicating a reduction ratio of image data input to the input unit, which is set in advance, according to the image data input to the input unit Mode switching means for switching between a projection mode for projecting an image and an image quality adjustment mode for projecting an image quality adjustment screen for adjusting the image quality of the image projected at least by the projection unit; When switching to the image quality adjustment mode, the image according to the image data input to the input unit reduced based on the reduction magnification information, and the image quality adjustment And a projection control unit that projects the projection area separately, and an image quality adjustment unit that adjusts the image quality of the image projected by the projection unit in a state where the image quality adjustment screen is projected by the projection control unit. It is characterized by.

DESCRIPTION OF SYMBOLS 1 ... Projection apparatus, 11 ... Program memory, 12 ... Main memory, 13 ... Video RAM, 14 ... Control part, 15 ... Input part, 16 ... Image conversion part (scaler), 17 ... Projection part, 18 ... Projection control part, 19 ... operation section, 20 ... image quality adjusting portion, 21 ... display unit, SB ... system bus, g 1 _... image, g 2 _... image quality adjustment screen.

Claims (5)

An input means for inputting image data;
Storage means for storing reduction ratio information indicating a reduction ratio of image data input to the input means, which is set in advance;
Projection means for projecting the image data input to the input means toward a projection target;
Mode switching for switching between a projection mode for projecting an image according to image data input to the input means and an image quality adjustment mode for projecting an image quality adjustment screen for adjusting the image quality of the image projected by at least the projection means. Means,
When the mode switching means switches from the projection mode to the image quality adjustment mode, the image corresponding to the image data input to the input means reduced based on the reduction magnification information and the image quality adjustment screen are projected. Projection control means for dividing and projecting a region;
A projection apparatus comprising: an image quality adjustment unit configured to adjust an image quality of an image projected by the projection unit in a state where the image quality adjustment screen is projected by the projection control unit. The image forming apparatus further includes a specifying unit for specifying the type of image quality adjustment,
The storage means stores a plurality of type information indicating the type of image quality adjustment, and reduction ratio information set in association with each type information,
The projection control unit reads out the reduction ratio information associated with the type specified by the specifying unit from the storage unit, and projects the image corresponding to the image data input to the input unit and the image quality adjustment screen The projection apparatus according to claim 1, wherein the image data input to the input unit is reduced and projected.   The projection apparatus according to claim 2, wherein the type information includes at least one of a color density, a hue, a color balance, and a preset projection mode in which a plurality of types of information is combined. A projection method for an apparatus comprising: an input unit to which image data is input; and a projection unit that projects the image data input to the input unit toward a projection target,
A storage step of storing reduction ratio information indicating a reduction ratio of the image data input to the input unit that is set in advance;
Mode switching for switching between a projection mode for projecting an image according to image data input to the input unit and an image quality adjustment mode for projecting an image quality adjustment screen for adjusting the image quality of an image projected at least by the projection unit Process,
When switching from the projection mode to the image quality adjustment mode in the mode switching step, projection of an image according to the image data input to the input unit reduced based on the reduction magnification information and the image quality adjustment screen A projection control step of dividing and projecting the area;
An image quality adjustment step of adjusting an image quality of an image projected by the projection unit in a state where the image quality adjustment screen is projected by the projection control unit. A program executed by a computer built in a projection apparatus including an input unit to which image data is input, and a projection unit that projects the image data input to the input unit toward a projection target,
The computer,
Storage means for storing reduction ratio information indicating a reduction ratio of image data input to the input unit, which is set in advance;
Mode switching for switching between a projection mode for projecting an image according to image data input to the input unit and an image quality adjustment mode for projecting an image quality adjustment screen for adjusting the image quality of an image projected at least by the projection unit means,
When the mode switching unit switches from the projection mode to the image quality adjustment mode, the image corresponding to the image data input to the input unit reduced based on the reduction magnification information and the image quality adjustment screen are projected. Projection control means for dividing and projecting a region,
Image quality adjusting means for adjusting the image quality of the image projected by the projection unit in a state where the image quality adjustment screen is projected by the projection control unit;
A program characterized by functioning as

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