JP5572926B2 - Display device, display method, and program - Google Patents

Description

  The present invention relates to a display device, a display method, and a program suitable for a data projector device that performs a presentation without connecting a personal computer, for example.

  With the widespread use of personal computers, it has become widespread to conduct appealing presentations by connecting a personal computer to a data projector apparatus and executing a presentation program on the personal computer side.

Along with this, for example, there is also considered a technique that enables smooth presentation assistance by notifying time allocation for each material page for presentation (Patent Document 1).
JP 2007-264575 A

  In this type of projector device, as a means of performing almost the same presentation without connecting a personal computer, all the presentation data pages are imaged to create a series of image data files, which are then stored in a USB memory and presented. At the time of execution, a technique has been established in which the USB memory is attached to the projector device to sequentially read and project stored images.

  In the above technique, all data pages are handled as fixed images. For this reason, the original presentation program can express a state in which an image changes by means of moving, blinking, discoloring, or the like partially in a document page, for example, while using the USB memory. It cannot be reproduced as it is with the existing technology.

  Still, if you want to achieve the same expressive power as the presentation program, you have to prepare an independent image for the entire process of change, and the storage capacity required to store a huge number of images in the USB memory is large. It is not realistic, such as becoming very large.

  The present invention has been made in view of the above circumstances, and the purpose of the present invention is to hide information that is not desired to be displayed, and to further reduce the capacity for image storage while reducing the capacity for image storage. An object of the present invention is to provide a display device, a display method, and a program capable of displaying a certain image.

  According to the first aspect of the present invention, there is provided input means for inputting an image including a first background color of the entire image, a second background color different from the first background color, and predetermined information, and the input means. Display means for displaying the image input in step 1, background color determination means for determining the first background color of the entire image from the image input by the input means, and the image input from the input means. When extracting the second background color different from the first background color of the whole image determined by the background color determining means and extracting the image input by the input means on the display means, And display control means for displaying only the predetermined background color within the second background color extracted by the extracting means.

  According to a second aspect of the present invention, in the first aspect of the present invention, the second background color includes predetermined information.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the display control means displays the second background color extracted by the extraction means with a predetermined background color. It shifts to the display which added the predetermined | prescribed information part, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the display control means divides a transition from the display of only the predetermined background color to a display including a predetermined information portion in a plurality of stages. It is characterized by performing.

  The invention according to claim 5 is the invention according to claim 1, wherein the display control means includes a plurality of predetermined information portions of a second background color different from the first background color of the entire image. The display of the predetermined information portion and the display of the second background color is displayed only with the predetermined background color, and then the transition to the display including the predetermined information portion is sequentially performed one by one. And

  The invention according to claim 6 is the invention according to claim 1, wherein the display control means includes a plurality of predetermined information portions of a second background color different from the first background color of the entire image. A plurality of predetermined information parts are displayed in a plurality of colors.

  According to a seventh aspect of the present invention, in the invention according to any one of the first to fifth aspects, the predetermined information is at least one of a character, a number, a symbol, a symbol mark, and an image.

  The invention according to claim 8 is a display method in a display device for inputting and displaying an image including predetermined information, and a background color for determining a first background color of the entire image from the input image A determination step, an extraction step of extracting and extracting a second background color different from the first background color of the entire image determined in the background color determination step from the input image, and displaying the input image A display control step of displaying the second background color extracted in the extraction step only with a predetermined background color and then shifting to a display with a predetermined information portion added thereto. And

  The invention described in claim 9 is the invention described in claim 8, characterized in that the second background color includes predetermined information.

  The invention described in claim 10 is the invention described in claim 8 or 9, wherein the predetermined information is at least one of a character, a number, a symbol, a symbol mark, and an image.

  The invention according to claim 11 is a program executed by a computer built in a display device that inputs and displays an image including predetermined information, and the first background color of the entire image is selected from the input images. A background color determination step for determination; an extraction step for extracting and extracting a second background color different from the first background color of the entire image determined in the background color determination step from the input image; and the input A display control step of displaying the second background color extracted in the extraction step with only a predetermined background color and then shifting to a display to which a predetermined information portion is added when the image is displayed. It is made to perform.

  The invention described in claim 12 is the invention described in claim 11, characterized in that the second background color contains predetermined information.

  The invention according to claim 13 is the invention according to claim 11 or 12, wherein the predetermined information is at least one of a character, a number, a symbol, a symbol mark, and an image.

  According to the present invention, it is possible to hide information that is not desired to be displayed, and it is possible to display a more expressive image while reducing the capacity for image storage.

  An embodiment in which the present invention is applied to a DLP (registered trademark) data projector apparatus will be described below with reference to the drawings.

  FIG. 1 is a schematic functional configuration of a data projector apparatus 10 according to the present embodiment. An input / output connector unit 11 includes, for example, a pin jack (RCA) type video input terminal, a D-sub15 type RGB input terminal, and a USB (Universal Serial Bus) connector.

  Image signals of various standards input from the input / output connector unit 11 are in a predetermined format suitable for projection by an image conversion unit 13, also called a scaler, via an input / output interface (I / F) 12 and a system bus SB. After being unified into an image signal and appropriately stored in the image storage unit 14 which is a buffer memory for display, it is sent to the projection image processing unit 15.

  At this time, various characters for OSD (On Screen Display), pointers, and the like are also superimposed on the image signal by the image storage unit 14 as necessary, and the processed image signal is sent to the projection image processing unit 15.

  The projection image processing unit 15 multiplies a frame rate according to a predetermined format, for example, 60 [frames / second], the number of color component divisions, and the number of display gradations, in accordance with the transmitted image signal. The micromirror element 16, which is a spatial light modulation element (SOM), is driven to display by high-speed time division driving.

  On the other hand, a light source lamp 18 using, for example, a high-pressure mercury lamp disposed in the reflector 17 emits white light with high luminance. The light source lamp 18 is AC driven by the electric power from the ballast circuit 19, and the white light emitted from the light source lamp 18 passes through a color wheel 20 that rotates at high speed in synchronization with the display on the micromirror element 16. The primary color is colored in a time-sharing manner, and the light is uniformly distributed by the integrator 21, and then totally reflected by the mirror 22 and irradiated onto the micromirror element 16.

  Then, an optical image is formed by the reflected light from the micromirror element 16, and the formed optical image is projected through a projection lens unit 23 onto a screen (not shown) to be projected.

  The projection lens unit 23 enlarges and projects the optical image formed by the micromirror element 16 onto a target such as a screen, and can change the in-focus position and the zoom position (projection angle of view) arbitrarily. .

  That is, both the focus lens and the zoom lens (not shown) in the projection lens unit 23 are controlled by moving back and forth along the optical axis direction, and these lenses are moved by rotating the stepping motor (M) 24. To do.

  Further, the power supply to the ballast circuit 19 for lighting the light source lamp 18, the rotational drive of the motor (M) 25 for the color wheel 20, and the marker sensor 26 provided at the rotation peripheral end of the color wheel 20 The projection light processing unit 27 performs both the segment boundary detection and the rotation driving of the stepping motor 24.

  The projection image processing unit 15 outputs a lamp synchronization signal synchronized with the switching timing of the image for each color component displayed on the micromirror element 16 to the ballast circuit 19 and the projection light processing unit 27.

  The CPU 28 controls all the operations of the above circuits. The CPU 28 uses the main memory 29 composed of DRAM and the program memory 30 composed of an electrically rewritable non-volatile memory storing operation programs, various fixed data, and the like to perform control operations in the data projector apparatus 10. Execute.

  The CPU 28 performs various projection operations according to operation signals from the operation unit 31. The operation unit 31 includes a key operation unit provided on the housing body of the data projector device 10 and an infrared receiving unit that receives an infrared modulation signal from a remote controller (not shown) dedicated to the data projector device 1. Directly outputs to the CPU 28 a key code signal based on the key operated via the key operation unit or the remote controller.

  The CPU 28 is further connected to the sound processing unit 32 via the system bus SB.

  The sound processing unit 32 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection operation into an analog signal, drives the speaker unit 33 to emit a loud sound, or generates a beep sound or the like if necessary.

Next, the operation of the above embodiment will be described.
In FIG. 2, a USB memory (not shown) is attached to the USB connector in the input / output connector unit 11 of the data projector apparatus 10, and image data is read out from a series of image data files stored in the USB memory and projected. It shows the basic processing contents when performing the operation. The operation shown in FIG. 2 is controlled by the CPU 28 developing the operation program read from the program memory 30 in the main memory 29 and executing it.

  Initially, image data for one frame is read from the USB memory and input (step S101).

  The input image data is expanded and stored in the image storage unit 14 functioning as a display buffer via the input / output interface 12 and the system bus SB, and then the entire image is scanned (step S102). The mask pattern, the character string, the graph, etc. are recognized separately, and in particular, the mask pattern portion is extracted (step S103). Here, the mask pattern refers to a pattern portion surrounding a character string using a color different from the background color.

  FIG. 3 shows an example of the contents of the input image data. The image data IM11 shows a state in which the character strings “Nonprofit Organization” and “Not-for-Profit Organization” are respectively arranged in the two mask pattern portions MP01 and MP02.

  The CPU 28 determines whether or not there is at least one mask pattern portion by the recognition in step S103 and the subsequent extraction process (step S104). Here, if it is determined that there is at least one mask pattern portion, first, image data in a state where all the recognized mask pattern portions have their character strings eliminated with only the background color is created, and the micromirror element 16 handles them. An optical image is formed and projected from the projection lens unit 23 (step S105).

  FIG. 4 shows a part of the image data IM11 projected at this time. The original character string is projected by the mask pattern portions MP01 and MP02 on the original image data IM11 shown in FIG. It can be seen that it is simply a rectangular part with a different color from the surroundings.

  Thus, at the beginning of projection, the character strings of the mask pattern portions MP01 and MP02 in the image data IM11 are not intentionally projected.

  Thereafter, the number of all mask pattern portions (“2” in FIG. 3) is set as an algebra “N” (step S106), and subsequently, an initial value “1” is substituted into a variable n for designating the position of the mask pattern portion. (Step S107).

  Next, the image data stored in the image storage unit 14 is processed in a plurality of stages so that the original character string gradually appears in the nth mask pattern portion specified by the value of the variable n. The image data is projected from the projection lens unit 23 (step S108).

  FIG. 5 illustrates one stage of the process in which the original character string is projected so as to gradually appear in the mask pattern portion MP01. Here, a case where the character string appears by a technique called “wipe” in which the character string appears gradually from the upper end side toward the lower end side is illustrated.

  In addition, for example, a so-called “fade” method in which a corresponding character string appears on the entire surface of the mask pattern gradually emerges from the background color, or a large mosaic pattern gradually becomes a small mosaic. A so-called “mosaic” technique in which a character string finally appears by forming a pattern may be used.

  Regardless of which method is used, the process in which the character string gradually appears is described as being processed in multiple stages, but it seems to change steplessly by setting the number of stages as large as possible. However, since the time required for processing and drawing on the apparatus side increases, the number of steps is appropriately set according to the size of the mask pattern part and the character string inside it. Shall be set.

  FIG. 6 shows a state in which the original character string appears completely in the mask pattern portion MP01.

  In this way, after performing projection so that the original character string appears in the nth (here, “1”) mask pattern portion, the value of the variable n is updated by “+1” (step S109). Then, after confirming that the value of the updated variable n does not exceed the number N of all mask pattern portions (step S110), the process returns to the process from step S108 again, and a new nth mask pattern is obtained. The same processing is executed in the part.

  In this way, by repeatedly executing the processing of steps S108 to S110 by the number represented by the algebra N, projection is performed so that the original character string appears one by one in all N mask pattern portions.

  Then, after executing the projection operation with the N mask pattern portions, if it is determined in step S110 that the value of the variable n exceeds the value of the algebra N, the image as it was originally input again at that time. Is projected (step S111).

  From this projection state, it is determined whether or not a key operation for instructing switching to the next image has been performed on the operation unit 31 (step S112), and if not operated, the process returns to the process from step S111. By repeatedly executing it, it waits for an instruction to switch to the next image while continuing projection.

  Then, when it is determined that switching to the next image is instructed, the process returns to the process from step S101, and the same process is executed thereafter.

  If it is determined in step S104 that there is no mask pattern portion in the image, the processes in steps S105 to S110 are omitted, and the process proceeds directly to step S111 to project the input image as it is. .

  As described above in detail, according to this embodiment, a character portion having a background color different from the background color of the entire image is extracted as a mask pattern portion, and the character state is changed from a state in which there is no character string in the mask pattern portion. It is assumed that projection is executed by processing on the side of the apparatus up to a state where the original image is arranged.

  For this reason, it is possible to hide information that is not desired to be displayed, and it is not necessary to store a plurality of images depending on the presence / absence of a character string in the mask pattern portion. A certain image can be displayed.

  In addition, in the above embodiment, since the character pattern in the mask pattern part is depicted in such a manner that the character string gradually appears in a plurality of stages from the state where there is no character string to the state arranged as the original image. Compared to a case where a character string suddenly appears in a mask pattern portion having no character string, a more natural and appealing expression can be projected.

  In addition, in the above-described embodiment, when there are a plurality of mask pattern portions, the depiction such that the characters appear is performed in order for each mask pattern portion. You can get a deeper understanding of what you want to do.

Note that, unlike the above-described embodiment, it is also conceivable to execute processing in which a character string gradually appears in a batch at a plurality of mask pattern portions.
FIG. 7 exemplifies one stage of the process in which the wiping process is collectively performed by the mask pattern portions MP01 and MP02 of FIG. This figure shows a process in which the wipe process is performed so that the character strings gradually appear from the left side to the right side of the screen together with the mask pattern portions MP01 and MP02.

  In the mask pattern portions MP01 and MP02, the internal character strings “Nonprofit Organization” and “Not-for-Profit Organization” are treated as equivalents shown in parallel, so that they have the same contents. Can be expressed visually.

  Although this is also different from the above embodiment, when there are a plurality of mask pattern parts, the character string itself in the mask pattern part after the various processing described above is used in a different color for each mask pattern. May be projected.

FIG. 8 exemplifies a state in which the character string colors are projected differently in the mask pattern portion MP01 and the mask pattern portion MP02 in FIG.
In this way, when processing is performed so that the original character string gradually appears from the mask pattern portion where there is no character string, the color of the character string that finally appears differs for each position of the mask pattern portion. Then, for example, even character strings having similar contents as shown in FIG. 8 can be easily identified and visually recognized, so that it is reliably avoided that the contents are confused and recognized. it can.

  In the above-described embodiment, the recognized mask pattern portion is created by projecting image data in a state in which the character string is eliminated only with the background color. However, the mask pattern portion has the same color as the surrounding image. The background color may be changed to other colors. Further, instead of a single color, a pattern in which a plurality of colors are mixed may be used.

  Further, the processing in the case where a character string made up of a plurality of characters is present in the mask pattern portion by taking the mask pattern portions MP01 and MP02 as an example has been described, but the present invention is not limited to this, and the background color of the entire image The present invention can be applied in the same manner even when there is only one character in the mask pattern portion of a background color different from the above, or when there are numbers, symbols, symbol marks, images, etc. instead of the characters.

  Furthermore, although the above embodiment has been described with respect to a case where an image is projected by being applied to a data projector apparatus, the present invention is not limited to this, and in a broad sense capable of changing the state of an image over time. The present invention can also be applied to a display device such as an electronic photo stand using a memory card and a color liquid crystal panel.

  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. In addition, the functions executed in the above-described embodiments may be implemented in appropriate combination as much 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 some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect is obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

The block diagram which shows the function structure of the electronic circuit of the data projector apparatus which concerns on one Embodiment of this invention. 6 is a flowchart showing processing details related to image projection when the USB memory according to the embodiment is mounted. The figure which illustrates the projection image which concerns on the same embodiment. The figure which illustrates a part of projection image which concerns on the same embodiment. The figure which illustrates a part of projection image which concerns on the same embodiment. The figure which illustrates a part of projection image which concerns on the same embodiment. The figure which illustrates a part of projection image which concerns on the same embodiment. The figure which illustrates a part of projection image which concerns on the same embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Data projector apparatus, 11 ... Input / output connector part, 12 ... Input / output interface (I / F), 13 ... Image conversion part, 14 ... Image storage part, 15 ... Projection image processing part, 16 ... Micromirror element (SOM) ), 17 ... reflector, 18 ... light source lamp, 19 ... ballast circuit, 20 ... color wheel, 21 ... integrator, 22 ... mirror, 23 ... projection lens unit, 24 ... stepping motor (M), 25 ... motor (M), 26 ... Marker sensor, 27 ... Projection light processing unit, 28 ... CPU, 29 ... Main memory, 30 ... Program memory, 31 ... Operation unit, 32 ... Audio processing unit, 33 ... Speaker unit, IM11 ... Image data, MP01, MP02 ... Mask pattern part, SB ... System bus.

Claims (13)

Input means for inputting an image including a first background color of the entire image, a second background color different from the first background color, and predetermined information;
Display means for displaying an image input by the input means;
Background color determination means for determining a first background color of the entire image from the images input by the input means;
Extraction means for classifying and extracting a second background color different from the first background color of the whole image determined by the background color determination means from the image input by the input means;
And a display control means for displaying only the predetermined background color within the second background color extracted by the extraction means when displaying the image input by the input means on the display means. Display device.   The display device according to claim 1, wherein the second background color includes predetermined information.   2. The display control unit according to claim 1, wherein after the second background color extracted by the extraction unit is displayed in a predetermined background color, the display control unit shifts to a display including a predetermined information portion. Or the display apparatus of 2.   2. The display device according to claim 1, wherein the display control means executes the transition from the display of only the predetermined background color to the display including a predetermined information portion in a plurality of stages.   The display control means displays the predetermined information portion and the display of the second background color when there are a plurality of predetermined information portions of a second background color different from the first background color of the entire image. 2. The display device according to claim 1, wherein after the display is performed only with the predetermined background color, a transition to a display including a predetermined information portion is sequentially performed one by one.   The display control means is configured to display a plurality of predetermined information portions in a plurality of colors when there are a plurality of predetermined information portions of a second background color different from the first background color of the entire image. The display device according to claim 1, characterized in that:   6. The display device according to claim 1, wherein the predetermined information is at least one of a character, a number, a symbol, a symbol mark, and an image. A display method on a display device for inputting and displaying an image including predetermined information,
A background color determination step of determining a first background color of the entire image from the input image;
An extraction step of extracting and extracting a second background color different from the first background color of the entire image determined in the background color determination step from the input image;
A display control step of displaying the input image in the second background color extracted in the extraction step with only a predetermined background color and then shifting to a display with a predetermined information portion added thereto; A display method characterized by comprising:   The display method according to claim 8, wherein the second background color includes predetermined information.   The display method according to claim 8 or 9, wherein the predetermined information is at least one of a character, a number, a symbol, a symbol mark, and an image. A program executed by a computer built in a display device that inputs and displays an image including predetermined information,
A background color determining step of determining a first background color of the entire image from the input image;
An extraction step of dividing and extracting a second background color different from the first background color of the entire image determined in the background color determination step from the input image;
A display control step for displaying the input image in the second background color extracted in the extraction step with only a predetermined background color and then shifting to a display with a predetermined information portion added thereto; A program that causes a computer to execute.   12. The program according to claim 11, wherein predetermined information is included in the second background color.   The program according to claim 11 or 12, wherein the predetermined information is at least one of a character, a number, a symbol, a symbol mark, and an image.

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