JP2009288588A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device capable of converting the character information included in the image displayed by the display device into a state enabling it to take into the other media such as a portable equipment or the like easily and providing it. <P>SOLUTION: This image display device 1 converting the character information in the image to be displayed in the display device 30 into two-dimensional codes and displaying the character information in the display device 30 is provided with a character information sampling means 11 for sampling character information data 26 from picture signals in the image, a two-dimensional code generating means 27 for generating two-dimensional codes 28 from the sampled character information data 26, and a first image synthesizing means 29 for synthesizing the generated two-dimensional codes 28 with the picture signals and displaying them in the display device 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image display device that extracts character information from an image displayed on a display device, converts the character information into a two-dimensional code, and displays the information on the display device.

  A conventional display device (for example, a television) outputs a broadcast program received from a tuner or the like and a video signal input from the outside as a video. The main method of using such a display device is to passively view images that change over time. Some of these videos contain information that you want to save and check again later. For example, it includes information such as cooking recipes, store addresses, telephone numbers, Internet URLs, and event notifications.

  As means for storing such information, there are video storage devices such as a video tape recorder and an HDD recorder that store the video itself. If it is recorded as a video in this way, a recipe for cooking can be confirmed on the video itself if played back later. If the display device has a screen printing function, information can be stored by printing an image on which necessary information is displayed. Moreover, an equivalent effect can be acquired by taking an image with a camera device. The same effect can be obtained by taking notes with a writing instrument as the most primitive method.

  Incidentally, Patent Document 1 is known as a prior art document related to such background art.

JP 2006-227931 A

  However, when a video storage device is used as a means for storing such information, it is premised that a video on which necessary information is displayed can be recorded. Therefore, when necessary information is generated while viewing the recorded video, the information is already stored and can be reproduced later. However, if necessary information is generated during viewing of an unrecorded video, the information may not be stored in time even if recording is started at the time of occurrence.

  In the case of a display device having a screen printing function, the information cannot be stored unless the image on which the information is displayed can be captured. Also, when taking notes, you can take notes if the amount of information is small, such as a store address or telephone number, but if the amount of information is large, such as cooking recipes, you should take notes again. I can't.

  Even if information can be stored on a video storage device, information such as address and telephone number needs to be converted to another portable media if it is taken out from the place where the display device is installed. There will be new work.

  The present invention has been made to solve the above-described problems, and provides an image display device that converts character information contained in a display image of a display device into a state that can be easily imported into another medium. It is to be.

  In order to solve the above-described problem, a first aspect of the present invention is an image display device that two-dimensionally encodes character information in an image displayed on the display device and displays the character information on the display device. Character information extraction means for extracting character information data from the video signal, two-dimensional code generation means for generating a two-dimensional code from the extracted character information data, and combining the generated two-dimensional code with the video signal And a first image composition means for displaying on the display device.

  According to the first aspect of the present invention, the character information of the display image can be instantaneously taken into a portable terminal or the like having a two-dimensional code reading function. Therefore, it is possible to provide useful character information in the display image by converting it into a state in which it can be easily taken into other media.

Embodiment 1 FIG.
The image display device according to this embodiment extracts character information contained in an image displayed on the display device, converts it to a two-dimensional code, and displays it on the display device.

  As shown in FIG. 1A, the image display device 1 includes a video input terminal 130 such as a video input S terminal or an RCA terminal, a video input means 131 such as a tuner, an A / D converter 2, and the like. Codec 4, decoder 6, character information extractor (character information extractor) 11, two-dimensional code generator (two-dimensional code generator) 27, image synthesizer (first image synthesizer) 29, And a display device 30.

  As shown in FIG. 2A, the character information extractor 11 includes a frame buffer 12, a noise removal unit 13, a character extraction processing unit 14, a normalization processing unit 15, a feature extraction processing unit 16, and a character recognition unit. A processing unit 17, a dictionary ROM 18, and a character data generation unit 19 are provided.

  The video signal 3 from the video input terminal 130 or the video input means 131 is converted into a digital signal by the A / D converter 2, subjected to codec processing by the codec 4, and output to the decoder 6. The decoder 6 receives a video signal 5 from the codec 6, a stream 8 such as MPEG-TS from the digital tuner 7, and a stream 9 from HDMI (High-Definition Multimedia Interface) or the like. The decoder 6 decodes the input selected by the user and outputs it to the character information extractor 11 and the image synthesizer 29 as the video signal 10.

  The video signal 10 output to the character information extractor 11 is first stored in the frame buffer 12 for each frame image as shown in FIG. Then, noise unnecessary for character recognition is removed from the frame image 20 stored in the frame buffer 12 by the noise removing unit 13. The noise removing unit 13 is, for example, a low-pass filter, and removes a portion having a large independent high-frequency component such as isolated point noise.

  Then, the character image processing unit 14 extracts a character area from the frame image 20 from the frame image 20 from which noise has been removed by the noise removing unit 13. Specifically, as shown in FIG. 2B, the character extraction processing unit 14 performs, for example, gray scale processing or binarization processing on the frame image 20, and an area where the characteristics as a character are remarkable from the distribution of edge components. And the area is extracted as the character area 21.

  The character area 21 extracted by the character extraction processing unit 14 is normalized by the normalization processing unit 15 for each character image included in the area 21. The character image included in the frame image 20 is not always an arrangement in a certain direction or a certain character size, and includes an inclined one or a deformed one. Therefore, the character image included in the frame image 20 is normalized in order to increase the recognition rate of the subsequent character recognition process. Specifically, for example, the normalization processing unit 15 further divides the character area 21 into areas for one character based on the edge information, obtains a circumscribed rectangle for each one character area, The character area 21 is normalized for each character image by performing image processing such as enlargement / reduction on the area for each character so that becomes a normalized square. Thereby, for example, the character image 21a of FIG. 2A becomes a character image 22 normalized as shown in FIG. 2C, for example.

  The normalized character image 22 is extracted by the feature extraction processing unit 16. Specifically, for example, the feature extraction processing unit 16 further divides the character image 22 into a plurality of areas in a grid pattern and, as a feature of the character image 22, information indicating in which direction the lines in each area are directed. The extracted information is obtained for all the divided areas, and the target character feature information 23 relating to the features of the character image 22 is created.

  Then, the character recognition processing unit 17 recognizes all the character images 22 extracted from the frame image 20 based on the target character feature information 23 extracted by the feature extraction processing unit 16. Specifically, the character recognition processing unit 17 sequentially extracts the character feature information 24 from the dictionary ROM 18, compares the character feature information 24 with the target character feature information 23, and among the character feature information 24, The character most similar to the target character feature information 23 is determined as the target character of the character image 22. Thus, the character image 22 is recognized as the target character.

  Then, the recognition result 25 of the character recognition processing unit 17 is sent to the character data generation unit 19. The character data generation unit 19 converts the recognition result 25 into a character code such as ASCII and saves it. When the character recognition processing for all characters in the frame image 20 is completed, the saved character string is converted into the character information data 26. To the two-dimensional code generator 27.

  The two-dimensional code generator 27 generates a two-dimensional code (for example, QR code) 28 from the character information data 26. For example, as shown in FIG. 2, the two-dimensional code 28 is a substantially square code, and includes a square position detection pattern 28a arranged at three corners and a data area 28b filled with a large number of cells. . Characters, numbers, symbols, and the like can be recorded in the data area 28b by combining cells.

  Then, the two-dimensional code 28 generated by the two-dimensional code generator 27 is combined with the video signal 10 by the image combiner 29 and displayed on the image displayed on the display device 30. Thus, the character information in the image displayed on the display device 30 is two-dimensionally encoded and displayed on the display device 30.

  According to the image display device 1 configured as described above, since the character information in the display image of the display device 30 is two-dimensionally encoded and displayed on the display device 30, a portable terminal having a two-dimensional code reading function or the like The character information of the display image can be captured instantly. Therefore, it is possible to provide useful character information in the display image by converting it into a state in which it can be easily taken into other media.

Embodiment 2. FIG.
The display image device 1B according to this embodiment further updates the two-dimensional code 28 being displayed whenever there is a change in the character information in the display image of the display device 30 in the first embodiment. is there.

  As shown in FIG. 3, the display image device 1B includes a memory 101 for storing character information data 26 (hereinafter referred to as 26a) of the generation source of the two-dimensional code 28 being displayed on the display device 30 in the first embodiment. The new character information data 26 (hereinafter referred to as 26b) generated by the character information extractor 11 is compared with the character information data 26a stored in the memory 101, and the display device 30 is displaying the result based on the comparison result. A character information comparator (character information comparing means) 102 for determining whether or not to update the two-dimensional code 28 is further provided.

  The memory 101 is, for example, a RAM-type memory and has a size that can sufficiently store the character information data 26.

  The character information comparator 102 includes a comparison source character information data memory 104 that stores character information data 26 a that is a source of the two-dimensional code 28 being displayed on the display device 30, and a new character information extractor 11. A comparison target character information data memory 105 for storing character information data 26b, a first differentiator 106 for comparing the two character information data 26a and 26b (for example, comparing bits or data blocks), Based on the second difference unit 108 that compares the difference result 107 of the difference unit 106 with the character information data 26a in the memory 104 and the difference results 107 and 109 of the two difference units 106 and 108, the display unit 30 is displaying. And a determiner 110 for determining whether or not to update the two-dimensional code 28.

  In this display image device 1B, as in the first embodiment, the two-dimensional code generator 27 generates the two-dimensional code 28 from the character information data 26 from the character information extractor 11, and the image synthesizer 29 The two-dimensional code 28 and the video signal 10 from the decoder 6 are combined, and the two-dimensional code 28 is displayed on the display device 30 together with the image of the video signal 10.

  At this time, in this embodiment, when the two-dimensional code 28 is output from the two-dimensional code generator 27 to the image synthesizer 29 (therefore, when the two-dimensional code 28 is displayed on the display device 30), the two-dimensional code is displayed. Character information data 26 (26 a) from which the code 28 is generated is stored in the memory 101 from the two-dimensional code generator 27.

  When the character information extractor 11 generates new character information data 26 (26 b), the character information data 26 b is output to the two-dimensional code generator 27 and the character information comparator 102.

  In the character information comparator 102, the new character information data 26 b is stored in the memory 105, and the character information data 26 a in the memory 101 is stored in the memory 104. The first differencer 106 compares the character information data 26a and 26b in the memories 104 and 105, and the difference result (first difference result) 107 is determined by the determiner 110 and the second differencer 108. Is output. Then, the second difference unit 108 compares the character information data 26 a in the memory 104 with the difference result 107 of the first difference unit 106, and the difference result (second difference result) 109 is determined by the determiner 110. Is output.

  Based on the first and second comparison results 107 and 109, the determiner 110 determines whether or not there is a difference between the character information data 26a and 26b, and the information content of the new character information data 26b includes character information. Whether or not to update the two-dimensional code 28 being displayed on the display device 30 is determined based on the determination result.

  More specifically, in the determination unit 110, when the first comparison result 107 is “0” or the second difference result 109 is “0”, there is no difference between the character information data 26a and 26b or a new one. It is determined that there is no character information in the information content of the character information data 26a. As a result, it is determined that the two-dimensional code 28 being displayed on the display device 30 is not updated. By this determination, the character information data 26a continues to be output from the two-dimensional code generator 27 to the image synthesizer 29, and the two-dimensional code 28 being displayed on the display device 30 is displayed as it is without being updated. On the other hand, when the first difference information 107 is other than “0”, it is determined that there is a difference between the character information data 26a and 26b, and that there is character information in the information content of the new character information data 26b. Then, it is determined that the two-dimensional code 28 being displayed on the display device 30 is updated. With this determination, the two-dimensional code generator 27 generates a two-dimensional code 28 from the new character information data 26 a from the character information extractor 11, and the image synthesizer 29 generates the two-dimensional code 28 and the decoder 6. And the video signal 10 are combined and displayed on the display device 30. As a result, the two-dimensional code 28 being displayed on the display device 30 is updated to a new two-dimensional code 28 generated from the new character information data 26b. Then, the new character information data 26 a is overwritten and stored in the memory 101 by the two-dimensional code generator 27. Thereafter, the same processing is repeated.

  According to the image display device 1B configured as described above, the two-dimensional code 28 being displayed on the display image is updated every time there is a change in the character information in the display image of the display device 30. The character information can be acquired instantaneously by reading the two-dimensional code on the display image when the character information necessary for the display is displayed.

Embodiment 3 FIG.
The image display device 1C according to this embodiment further extracts the character information data 26 that is the generation source of the two-dimensional code 28 as a display image while the same two-dimensional code 28 is displayed in the second embodiment. The frame image 20 is displayed. That is, until the character information in the display image is changed on the display device 30, the two-dimensional code 28 of the character information and the character image data 26 from which the two-dimensional code 28 is generated as a display image are extracted. Is displayed.

  As shown in FIG. 4, this image display device 1C is an image storage / transmission for storing the frame image 20 obtained by extracting the character information data 26 from which the two-dimensional code 28 displayed on the display device 30 is extracted in the second embodiment. Means 120 and an image selector 121 that selectively outputs the video signal 10 from the decoder 6 and the frame image 20 stored in the image storage / transmission means 120 to the image synthesizer 29.

  The image storage / transmission means 120 is a non-volatile memory such as flash memory or HDD, or a memory such as RAM.

  In this image display device 1C, as in the second embodiment, the character information extractor 11 stores the video signal 10 from the decoder 6 in the frame buffer 12 for each frame image, and character information data 26 for each frame image 20. (26b) is extracted. Based on the new character information data 26 b and the character information data 26 a of the generation source of the two-dimensional code 28 being displayed on the display device 30, the determiner 110 of the character information comparator 102 is displaying on the display device 30. It is determined whether or not the two-dimensional code 28 is updated. As a result of the determination, when updating, the two-dimensional code generator 27 generates a new two-dimensional code 28 from the new character information data 26b, and the two-dimensional code 28 being displayed on the display device 30 The new two-dimensional code 28 is updated.

  When the determiner 110 makes the above determination, the next frame image 20 is stored in the frame buffer 12, and the same processing as described above is performed in each unit 11, 102, 28 for the next frame image 20.

  At this time, when the two-dimensional code 28 being displayed on the display device 30 is updated as a result of the determination, the frame image stored in the buffer memory 12 (that is, the new character information data 26b is extracted). After the frame image 20 is accumulated in the image accumulation / transmission means 120, the next frame image 20 is stored in the frame buffer 12. Similarly to the second embodiment, the two-dimensional code generator 27 generates a new two-dimensional code 28 from the new character information data 26 b generated by the character information extractor 11 and outputs it to the image synthesizer 29. Is done. Then, the image selector 121 selects the frame image (that is, the frame image from which the new character information data 26b is extracted) 20 stored in the image storage / transmission means 120, and the image synthesizer 29 selects the frame image 20. The new two-dimensional code 28 is synthesized on the image and displayed on the display device 30. The image selector 121 continues to select the frame image 20 until the two-dimensional code displayed on the display device 30 is updated. As a result, until the character information in the display image is changed on the display device 30, the frame image obtained by extracting the two-dimensional code 28 of the character information and the character information data 26 from which the two-dimensional code 28 is generated as the display image. 20 is displayed.

  According to the image display device 1C configured as described above, until the character information in the display image is changed on the display device 30, the two-dimensional code 28 of the character information and the two-dimensional code 28 as a display image are displayed. Since the frame image 20 from which the character information data 26 of the generation source is extracted is displayed, it is possible to check the contents of the two-dimensional code 28 with the frame image 20 and to have time to acquire the character information.

Embodiment 4 FIG.
As shown in FIG. 5, the image display device 1D according to this embodiment includes character information storage means 122 that stores character information data 26 that is two-dimensionally encoded and displayed on the display device 30 in the second embodiment. And an operation unit 103 for inputting an operation for converting the character information data 26 stored in the character information storage unit 122 into a two-dimensional code and displaying it on the display device 30.

  The operation unit 103 may be either assembled in the image display device 1D or remote control type.

  The character information storage unit 122 is a non-volatile memory such as a flash memory or an HDD.

  In this image display device 1D, when the determiner 110 of the character information comparison unit 102 determines to update the two-dimensional code 28 being displayed on the display device 30, new character information data 26b in the memory 105 is stored as character information. Accumulated in the accumulation means 122. When a read instruction operation is input to the operation unit 103, the two-dimensional code generator 27 generates a two-dimensional code 28 from the character information data 26 b stored in the character information storage unit 122. The image is output to the image synthesizer 29 and displayed on the display device 30. In this way, by operating the operation unit 103, the character information data 26b stored in the character information storage unit 122 is two-dimensionally encoded and displayed on the display device 30.

  According to the image display device 1D configured as described above, since the character information data 26 is stored in the character information storage unit 122, the character information data 26 is later called from the character information storage unit 122 to be two-dimensionally encoded and displayed. It can be displayed on the device 30.

Embodiment 5 FIG.
As shown in FIG. 6A, the image display device 1E according to this embodiment extracts the two-dimensional code 28 displayed on the display device 30 and the character information data 26 from which it is generated in the second embodiment. Information storage means 123 that stores the frame image 20 in correspondence with each other, and an operation unit 103 that inputs an operation for displaying the two-dimensional code 28 and the frame image 20 stored in the information storage means 123 on the display device 30. Are further provided.

  The information storage unit 123 is, for example, a nonvolatile memory such as a flash memory or an HDD, or a memory such as a RAM. The information storage unit 123 is connected to the frame buffer 12 and the two-dimensional code generator 27 in the character information extractor 11.

  In the image display device 1E, as in the second embodiment, the character information extractor 11 stores the video signal 10 from the decoder 6 in the frame buffer 12 for each frame image, and character information data 26 for each frame image 20. (26b) is extracted. Based on the new character information data 26 b and the character information data 26 a of the generation source of the two-dimensional code 28 being displayed on the display device 30, the determiner 110 of the character information comparator 102 is displaying on the display device 30. It is determined whether or not the two-dimensional code 28 is updated. As a result of the determination, when updating, the two-dimensional code generator 27 generates a new two-dimensional code 28 from the new character information data 26b, and the two-dimensional code 28 being displayed on the display device 30 The new two-dimensional code 28 is updated.

  When the determiner 110 makes the above determination, the next frame image 20 is stored in the frame buffer 12, and the same processing as described above is performed in each unit 11, 102, 28 for the next frame image 20.

  At this time, when the two-dimensional code 28 being displayed on the display device 30 is updated as a result of the determination, the frame image stored in the buffer memory 12 (that is, the new character information data 26b is extracted). After the frame image 20 is accumulated in the information accumulation means 123, the next frame image 20 is stored in the frame buffer 12. Similarly to the second embodiment, the two-dimensional code generator 27 generates a two-dimensional code 28 from the new character information data 26 b generated by the character information extractor 11. The two-dimensional code 28 is synthesized with the video signal 10 from the decoder 6 by the image synthesizer 29 and displayed on the display device 30, and is output to the information storage means 123 to correspond to the frame image 20. It is stored in the information storage means 123. FIG. 6B is a diagram showing a state in which the information storage unit 123 stores the two-dimensional code 28 and the frame image 20 in association with each other.

  Then, by operating the operation unit 103, the frame image 20 stored in the information storage unit 123 or the two-dimensional code 28 corresponding thereto can be selectively displayed on the display device 30 via the image synthesizer 29. Thus, the frame image 20 stored in the information storage unit 123 by the operation of the operation unit 103 is sequentially displayed on the display device 30 to find the frame image 20 displaying the desired character information, and the frame is displayed by the operation of the operation unit 103. A two-dimensional code 28 corresponding to the image 20 can be displayed on the display device 30. In this manner, the desired character information is searched based on the frame image 20 stored in the information storage unit 123, and the desired two-dimensional code 28 is found from the two-dimensional code 28 stored in the information storage unit 123. It can be displayed on the display device 30.

  According to the image display device 1E configured as described above, the information storage means 123 stores the two-dimensional code 28 and the frame image 20 from which the character information data 26 of the generation source are associated with each other. The two-dimensional code 28 can be searched based on the frame image 20, and the two-dimensional code 28 can be easily searched.

Embodiment 6 FIG.
As shown in FIG. 7A, the image display device 1F according to this embodiment further includes the information storage means 123 in the two-dimensional code 28 and the frame image 20 of the two-dimensional code 28 in the fifth embodiment. The generation source character information data 26 is stored correspondingly.

  In this image display device 1F, the information storage means 123 is connected to the frame buffer 12, the two-dimensional code generator 27, and the character data generator 19. When the determiner 110 of the character information comparator 102 determines that the two-dimensional code 28 being displayed on the display device 30 is to be updated, the new two-dimensional code generated by the two-dimensional code generator 27 is stored in the information storage unit 123. Generated by the dimension data 28, the frame image stored in the frame buffer 12 (ie, the frame image from which the character information data 26 from which the new two-dimensional code 28 is generated is extracted) 20, and the character data generator 19 The character information data (that is, the character information data from which the new two-dimensional code 28 is generated) 26 is stored in association with each other. FIG. 7B is a diagram showing a state in which the information storage unit 123 stores the two-dimensional code 28, the frame image 20, and the character information data 26 in association with each other.

  Then, by operating the operation unit 103, the frame image 20, the character information data 26 or the two-dimensional code 28 corresponding thereto stored in the information storage unit 123 is selectively displayed on the display device 30 via the image synthesizer 29. I can do things. Thereby, the desired character information is searched based on the frame image 20 or the character information data stored in the information storage unit 123, and the desired two-dimensional code 28 is searched from the two-dimensional code 28 stored in the information storage unit 123. Can be found and displayed on the display device 30.

  According to the image display device 1F configured as described above, the information storage means 123 includes the two-dimensional code 28, the character information data 26 of the generation source, and the frame image 20 from which the character information data 26 is extracted. Since they are stored in correspondence, the two-dimensional code 28 can be searched based on the frame image 20 or the character information data 26, and the two-dimensional code 28 can be easily searched.

Embodiment 7 FIG.
The image display device 1G according to this embodiment is a display device that combines the two-dimensional code 28 stored in the information storage means 123 and the corresponding frame image 20 or character information data 26 in the sixth embodiment. 30 is displayed.

  As shown in FIG. 8A, the image display device 1G further combines the two-dimensional code 28 stored in the information storage means 123 and the corresponding frame image 20 or character information data 26 in the sixth embodiment. An image synthesizer (second image synthesizer) 125, an image selector 121 for selectively displaying the synthesized image 128 synthesized by the image synthesizer 125 and the video signal 10 from the decoder 6 on the display device 30; And an operation unit 103 for inputting an operation for causing the image synthesizer 125 to create the composite image 128 and display the composite image 128 on the display device 30.

  FIG. 8B is a diagram showing a state in which the information storage means 123 stores the two-dimensional code 28, the frame image 20, and the character information data 26 in association with each other.

  The image synthesizer (first image synthesizer) 29 is connected between the decoder 10 and the image selector 121.

  In response to an operation from the operation unit 103, the image composition unit 125 performs image composition of the two-dimensional code 28 stored in the information storage unit 123 and the corresponding frame image 20 or character information data 26 to generate a composite image 128. create. The synthesized image 128 is created by, for example, synthesizing the two-dimensional code 28 corresponding to the frame image 20 or synthesizing the two-dimensional code 28 and the corresponding character information data 26 on one image. Is done. Specifically, for example, the image synthesizing means 125 develops the frame image 20 or the character information data 26 in a video buffer or the like that contains an image data file, and further converts the two-dimensional code 28 into one of the video buffers in which the image is developed. The composite image 128 is created by arranging in the section.

  Then, the created composite image 128 is displayed on the display device 30 via the image selector 121. Accordingly, each two-dimensional code 28 stored in the information storage unit 123 can be selectively displayed on the display device 30 simultaneously with the corresponding frame image 20 or character information data 26 by the operation of the operation unit 103.

  According to the image display device 1G configured as described above, each two-dimensional code 28 stored in the information storage means 123 is selectively displayed on the display device 30 simultaneously with the corresponding frame image 20 or character information data 26. Since the two-dimensional code 28 can be searched, the two-dimensional code 28 and the frame image 20 or the character information data 26 corresponding to the two-dimensional code 28 can be searched while simultaneously searching.

Embodiment 8 FIG.
As shown in FIG. 9A, the image display device 1H according to this embodiment is configured to display the two-dimensional code 28, the frame image 20 and the character information data 26 stored in the information storage unit 123 in the sixth embodiment. An image editing unit 127 for editing, an image selector 121 for selectively displaying the edited image 128 edited by the image editing unit 127 and the video signal 10 from the decoder 6 on the display device 30, and the image editing unit 127 for editing. An operation unit 103 for inputting an operation for creating an image 128 and displaying the image 128 on the display device 30 is further provided.

  FIG. 9B is a diagram showing a state where the two-dimensional code 28, the frame image 20, and the character information data 26 are stored in the information storage unit 123 in association with each other.

  The image editing unit 127 creates a thumbnail image 20 a of each frame image 20 stored in the information storage unit 123 in response to an operation from the operation unit 103, and all or part of the two stored in the information storage unit 123. The dimension code 28, the corresponding character information data 26, and the thumbnail image 20a corresponding to the dimension code 28 are made to correspond to each other and edited on one image to create an edited image 128.

  More specifically, as shown in FIG. 10, the image editing unit 127 includes, for example, an image input selector 127a, a temporary storage memory 127b, a work frame buffer 127c, a decoding unit 127d, and an image processing unit 127e. ing. The image input selector 127a reads the two-dimensional code 28, the frame image 20 and the character information data 26 from the information storage unit 123, and the image processing unit 127e reduces the image, the screen configuration, and the character information to the image. Perform conversion.

  With this configuration, the frame image 20, the two-dimensional code 28, and the character information 26 stored in the image storage unit 123 are read by the image input selector 127a and stored in the temporary storage memory 127b. The frame image 20 is demodulated from data to an image by the decoding means 127d, further reduced to a thumbnail image 20a by the image processing means 127e, and stored again in the temporary storage memory 127b. The two-dimensional code 28 stored in the temporary storage memory 127b is demodulated from data to an image by the decoding means 127d and stored again in the temporary storage memory 127b. The character information data 26 stored in the temporary storage memory 127b is demodulated by the decoding means 127d, converted into a character image by the image processing means 127e, and stored again in the temporary storage memory 127b. The thumbnail image 20a, the imaged two-dimensional code 28, and character information data 26 are arranged in the work frame buffer 127c by the image processing means 127e, and an edited image 128 is created. The edited image 128 is displayed on the display device 30 via the image selector 121.

  Here, like the image 30a in FIG. 9A, the edited image 128 is configured by arranging thumbnail images 20a, two-dimensional codes 28, and character information data 28 corresponding to each other, for example, in a horizontal row. When a plurality of sets of the frame image 20, the two-dimensional code 28, and the character information data 28 corresponding to each other are stored in the information storage unit 123, the thumbnail image 20a, the two-dimensional The code 28 and the character information data 28 are arranged in a list from the top of the image 30a.

  As a result, all or part of the two-dimensional code 28 stored in the information storage unit 123 and the corresponding frame image 20 and character information data 26 are made to correspond to each other by the operation of the operation unit 103 and are simultaneously displayed on the display device 30. Can be displayed. In particular, since the frame image 20 is displayed as a thumbnail image, a plurality of two-dimensional codes 28 and the corresponding frame images 20 and character information data 26 can be simultaneously displayed on the display device 30.

  According to the image display device 1H configured as described above, the two-dimensional code 28, the frame image 20 and the character information data 26 stored in the information storage unit 123 are image-edited by the image editing unit 127 and are displayed on the display device 30. Since it is displayed, when searching for the two-dimensional code 28, the two-dimensional code, the frame image 20 and the character information data 26 corresponding to the two-dimensional code can be searched simultaneously, and the search can be performed more easily.

Embodiment 9 FIG.
In the image display device 1I according to this embodiment, in the eighth embodiment, a video (moving image) based on the video signal 10 from the decoder 6 is further incorporated into the edited image 128.

  As shown in FIG. 11A, the image display apparatus 1I omits the image selector 121 in the eighth embodiment, inputs the video signal 10 from the decoder 6 to the image editing means 127, and receives information from the information storage means 127. The composite image 128 is output to the display device 30.

  FIG. 11B is a diagram showing a state where the two-dimensional code 28, the frame image 20, and the character information data 26 are stored in the information storage unit 123 in association with each other.

  In the image display device 1I, as in the eighth embodiment, the frame image 20, character information data 26, and two-dimensional code stored in the information storage unit 123 according to the operation of the operation unit 103 by the image editing unit 127. The thumbnail image 20a, the imaged character information data 26, and the two-dimensional code 28 are created from 28.

  In this embodiment, in the image editing means 127, the video signal 10 from the decoder 6 is demodulated by the decoding means 127d, and the thumbnail image 20a is imaged in a partial area of the working frame buffer 127c. The character information data 26 and the two-dimensional code 28 are arranged, and the image of the demodulated video signal 10 is arranged in another area of the work frame buffer 127c. As a result, an edited image 128 is created. The edited image 128 is displayed on the display device 30.

  Here, like the image 30a in FIG. 11A, the edited image 128 displays the thumbnail image 20a, the two-dimensional code 28, and the character information data 28 corresponding to each other in the upper and left peripheral areas of the edited image 128. The video 10 a based on the video signal 10 from the decoder 6 is configured to be displayed in a substantially central region of the edited image 128.

  Further, the image editing unit 128 displays only the video signal 10 from the decoder 6 on the display device 30 by operating the operation unit 103, or combines the two-dimensional code with the video signal 10 as in the first embodiment. Thus, a composite image is created, and the composite image is displayed on the display device 30. Thereby, the same effect as in the first embodiment is obtained.

  In this embodiment, the two-dimensional code generator 27 determines that the character information comparison unit 102 has a difference when the composite image created by the image editing unit is displayed on the display device 30. In this case, a new two-dimensional code 28 is generated from the new character information data 26 b, and the two-dimensional code 28 being displayed on the display device 30 is updated to a new two-dimensional code 28 via the image editing unit 127. Thereby, the same effect as in the second embodiment is obtained.

  According to the image display device 1I configured as described above, the edited image 128 also displays the video 10a by the video signal 10 from the decoder 6 in addition to the two-dimensional code 28, the character information data 26, and the thumbnail image 20a. Thus, the two-dimensional code stored in the information storage means 123 can be searched while viewing the video 10a.

  A combination of the first to ninth embodiments is also included in the technical scope.

  As an application example of the present invention, it is applied to a video display device such as a television, a video storage device, a projector, etc., and character information contained in a video signal captured by the video display device is two-dimensionally encoded and displayed in a display image. Character information can be easily captured in a portable information terminal having a two-dimensional code capturing function such as a mobile phone.

(A) is a block diagram of the image display apparatus according to the first embodiment, and (b) is an example diagram of a two-dimensional code 28 generated by a two-dimensional code generator 27. (A) is a block diagram of the character information extraction unit 11 of FIG. 1 (a), (b) is an example of a frame image 22 output from the frame buffer 22, and (c) is a normalization processing unit 15 FIG. 3 is an example of a normalized character image output from FIG. 6 is a block diagram of an image display device 1B according to Embodiment 2. FIG. It is a block diagram of the image display apparatus 1C which concerns on Embodiment 3. FIG. FIG. 10 is a block diagram of an image display device 1D according to Embodiment 4. (A) is a block diagram of an image display apparatus 1E according to Embodiment 5, and (b) shows a state in which the two-dimensional code 28 and the frame image 20 are stored in correspondence with each other in the information storage means 123 of (a). FIG. (A) is a block diagram of the image display apparatus 1F according to Embodiment 6, and (b) is a diagram in which the information storage means 123 of (a) is associated with the two-dimensional code 28, the frame image 20, and the character information data 26. FIG. (A) is a block diagram of the image display apparatus 1G according to the seventh embodiment, and (b) corresponds to the information storage unit 123 of (a) the two-dimensional code 28, the frame image 20, and the character information data 26. FIG. (A) is a block diagram of the image display device 1H according to the eighth embodiment, and (b) corresponds to the information storage means 123 of (a) the two-dimensional code 28, the frame image 20, and the character information data 26. FIG. It is a block diagram of the image editing means 127 of Fig.9 (a). (A) is a block diagram of the image display device 1I according to the ninth embodiment, and (b) corresponds to the information storage means 123 of (a) the two-dimensional code 28, the frame image 20, and the character information data 26. FIG.

Explanation of symbols

  1, 1B-1I image display device, 2 A / D converter, 3, 5 video signal, 4 codec processing unit, 6 decoder, 7 digital tuner, 8 stream, 9 digital stream, 10 video signal, 11 character information extractor, 20 frame image, 28 two-dimensional code, 29 image synthesizer, 126 composite image, 128 edited image.

Claims (11)

An image display device that two-dimensionally encodes character information in an image displayed on a display device and displays the character information on the display device,
Character information extraction means for extracting character information data from the video signal of the image;
Two-dimensional code generation means for generating a two-dimensional code from the extracted character information data;
First image synthesis means for synthesizing the generated two-dimensional code with the video signal and causing the display device to display the first image synthesis means;
An image display device comprising: The image display device according to claim 1,
The character information data that is the source of the two-dimensional code being displayed on the display device is compared with the new character information data generated by the character information extraction means, and it is determined whether there is a difference between them. Further comprising character information comparing means for
The two-dimensional code generation means generates a new two-dimensional code from the new character information data when the character information comparison means determines that there is a difference between them, and is being displayed on the display device. An image display device, wherein a two-dimensional code is updated to the new two-dimensional code. The image display device according to claim 1 or 2,
Image accumulation and transmission means for accumulating an image from which character information data from which the two-dimensional code is generated displayed on the display device is extracted;
An image selector for selectively outputting the video signal and the image stored in the image storage and sending means to the first image composition means;
And further comprising
When the two-dimensional code is displayed on the display device, the image selected by the image selector is selected by the image selector, and the two-dimensional code is displayed on the image by the first image synthesizing unit. An image display device, wherein the images are combined and displayed on the display device. The image display device according to any one of claims 1 to 3,
Further comprising character information storage means for storing the character information data from which the two-dimensional code displayed on the display device is generated;
The two-dimensional code generation means generates a two-dimensional code from the character information data stored in the character information storage means and displays the two-dimensional code on the display device. The image display device according to any one of claims 1 to 3,
Further comprising information storage means for storing the two-dimensional code displayed on the display device and the image from which the character information data from which the two-dimensional code is generated are stored in association with each other;
The information storage means causes the display device to display the two-dimensional code or the image stored in the information storage means via the first image composition means. The image display device according to claim 5,
The information storage means further stores the character information data of the generation source of the two-dimensional code displayed on the display device in association with the two-dimensional code, and stores the two-dimensional code stored in the character information data. An image display device, wherein the character information data or the image is selectively displayed on the display device via the first image composition means. The image display device according to claim 1 or 2,
Information storage means for storing the two-dimensional code displayed on the display device, the character information data of the generation source, and the image from which the character information data is extracted in association with each other;
Second image synthesis means for creating a synthesized image by synthesizing the two-dimensional code accumulated in the information accumulation means and the image or the character information data corresponding to the two-dimensional code;
An image selector for selectively outputting the video signal and the synthesized image to the first image synthesizing unit;
The second image synthesizing unit creates the synthesized image and displays the synthesized image on the display device via the image selector. The image display device according to claim 1 or 2,
Information storage means for storing the two-dimensional code displayed on the display device, the character information data of the generation source, and the image from which the character information data is extracted in association with each other;
A thumbnail image of the image stored in the information storage unit is created, and all or part of the two-dimensional code stored in the information storage unit and the character information data corresponding thereto and / or the image corresponding thereto Image editing means for creating an edited image by synthesizing the thumbnail image of
An image selector that selectively outputs the video signal and the edited image to the first image composition means;
The image editing device is characterized in that the edited image is created and displayed on the display device via the image selector. An image display device that two-dimensionally encodes character information in an image displayed on a display device and displays the character information on the display device,
Character information extraction means for extracting character information data from the video signal of the image;
Two-dimensional code generation means for generating a two-dimensional code from the extracted character information data;
Information storage means for storing the two-dimensional code displayed on the display device, the character information data of the generation source, and the image from which the character information data is extracted in association with each other;
A thumbnail image of the image stored in the information storage unit is created, a moving image based on the video signal is displayed in a partial region in the edited image, and the information storage unit is displayed in another region in the edited image. An edited image is created so as to display all or a part of the accumulated two-dimensional code and the corresponding character information data or / and the thumbnail image of the image corresponding thereto, and the edited image is displayed. Image editing means for display on the device;
An image display device comprising: The image display device according to claim 9,
The image editing unit generates a composite image by combining the video signal with the two-dimensional code generated by the two-dimensional code generation unit, and selectively displays the composite image and the edited image on the display device. An image display device characterized by displaying. The image display device according to claim 10,
The character information data that is the source of the two-dimensional code being displayed on the display device is compared with the new character information data generated by the character information extraction means, and it is determined whether there is a difference between them. Further comprising character information comparing means for
The two-dimensional code generation means generates a new two-dimensional code from the new character information data when the composite image is displayed on the display device and the character information comparison means determines that there is a difference. And the two-dimensional code being displayed on the display device is updated to the new two-dimensional code via the image editing means.

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