JP2004120227A - Image display device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display thumbnail pictures on the basis of 3D image data of an image. <P>SOLUTION: Thumbnail image data in compliance with a 2D format are created from 2D image data photographed and outputted by a camera section 3 and stored in a storage memory 7. The 2D image data are converted into 3D image data comprising left eye and right eye image data for stereoscopic vision of the image as desired. In this case, the corresponding thumbnail image data are created including the left eye and right eye image data and stored in the storage memory 7. When a display section 10 in the 3D mode displays the thumbnail image stored in the storage memory 7, a conversion section 21 converts the thumbnail image in the 2D format into the thumbnail image in the 3D format including the thumbnail image reduced to a half in a lateral direction as the left eye and right eye image data and the converted image data are displayed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image display apparatus and method, and more particularly, to an image display apparatus and method for displaying an image based on data according to the format of a stereoscopic image.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for displaying a stereoscopic image (hereinafter, referred to as a 3D (3-Dimensional) image), a liquid crystal display unit in which a display liquid crystal panel and a slit liquid crystal display panel are integrally provided has been provided ( For example, see Patent Document 1).
[0003]
Also, there is provided an apparatus that simultaneously displays a 3D image and a planar image (hereinafter, referred to as a 2D (2-dimensional) image) on the same screen (for example, see Patent Document 2).
[0004]
[Patent Document 1]
[0005] The specification and drawings of Japanese Patent Application Laid-Open No. 5-122733.
[Patent Document 2]
[0006] The specification and drawings of Japanese Patent Application Laid-Open No. 7-236164.
[Problems to be solved by the invention]
Recently, image data of various formats including 2D images and 3D images are being handled at the same time, so that even in a device having an image display function, these plural types of format image data are stored in a mixed manner. When displaying a list of image data in a plurality of types of formats stored in a menu format, a so-called thumbnail list that displays the image in a reduced size rather than displaying the image file name is more convenient. is there.
[0007]
However, a device for displaying a thumbnail image based on data conforming to the 3D image format when displaying such a thumbnail has not been proposed.
[0008]
Therefore, an object of the present invention is to provide an image display apparatus and method capable of displaying a reduced image based on data in a target image according to a 3D image format.
[0009]
[Means for Solving the Problems]
An image display device according to an aspect of the present invention includes a display unit, and reduced image display means for displaying a reduced image on the display unit based on data of different types of reduced images obtained by reducing a target image. . The type of reduced image data includes left-eye and right-eye image data, and the left-eye image data and the right-eye image data include three-dimensional reduced image data having parallax for stereoscopic viewing, and two images. And two-dimensional reduced image data for two-dimensional planar viewing. The reduced image display means causes the display unit to display a reduced image based on the two-dimensional reduced image data based on reduced image data including left-eye image data and right-eye image data.
[0010]
Therefore, when displaying the reduced image of the target image on the display unit, the reduced image display means may display both the reduced image based on the three-dimensional reduced image data and the reduced image based on the two-dimensional reduced image data for the left eye and the right eye. Is displayed on the basis of the data of the reduced image composed of the image data of (3), that is, based on the data according to the format of the three-dimensional image.
[0011]
Therefore, a reduced image can be displayed for the target image based on the data according to the three-dimensional image format.
[0012]
The above-mentioned reduced image display means preferably has a creating means for creating reduced image data composed of left-eye image data and right-eye image data from the two-dimensional reduced image data.
[0013]
Therefore, reduced image data according to the three-dimensional image format can be created from the two-dimensional reduced image data.
[0014]
The above-mentioned creating means preferably reduces the two-dimensional reduced image data so that the horizontal width of the two-dimensional reduced image is reduced to half, and converts the reduced two-dimensional reduced image data for left eye and right eye respectively. Assume image data.
[0015]
Therefore, by creating two-dimensional reduced image data that has been reduced so that the width of the two-dimensional reduced image is reduced to half, the left-eye image data and the right-eye image data can be created in the same manner.
[0016]
The above-described display unit preferably displays an image in a three-dimensional manner so as to be stereoscopically viewable.
Therefore, when a reduced image based on the three-dimensional reduced image data is displayed on the display unit, the reduced image can be visually recognized in three dimensions according to the parallax.
[0017]
Preferably, the image display device described above is a three-dimensional reduced image creating unit that creates three-dimensional reduced image data based on data of a three-dimensional image including a left-eye image and a right-eye image for stereoscopically viewing a target image. The three-dimensional reduced image creation unit further includes a reduction unit that reduces the data of the left-eye image and the right-eye image of the three-dimensional image data so that the target image satisfies the size of the reduced image.
[0018]
Therefore, by reducing the data of the left-eye image and the right-eye image of the three-dimensional image data of the target image, a reduced image can be created and displayed even if the target image is data that conforms to the format of the three-dimensional image.
[0019]
The above-mentioned reduction means preferably has a size cutting means for cutting data exceeding the size of the reduced image of the target image from the data of the left-eye image and the right-eye image of the three-dimensional image data.
[0020]
Therefore, reduction of the data of the left-eye image and the right-eye image to satisfy the size of the reduced image is performed by cutting data that exceeds the size of the reduced image of the target image. Can be created.
[0021]
In the above-described image display device, preferably, the data of the left-eye image and the right-eye image of the three-dimensional image data is bitmap data, and the reduction unit is configured to divide the bitmap data into a plurality of matrix data. Then, the representative value in each matrix is extracted, and data of the left-eye image and the right-eye image of the three-dimensional image data is configured by the extracted representative value.
[0022]
Therefore, the data of the left-eye image and the right-eye image corresponding to the reduced image is composed of the representative values of each matrix of the data of the left-eye image and the right-eye image of the original target image. Therefore, the created reduced image faithfully reproduces the original target image although it is reduced.
[0023]
The above-described image display device preferably further includes a two-dimensional reduced image creating unit that creates two-dimensional reduced image data based on data of the two-dimensional image of the target image.
[0024]
Therefore, even if the target image is data conforming to the format of the two-dimensional image, a reduced image can be created and displayed.
[0025]
The above-described three-dimensional image data is preferably any one of data provided from the outside and data created based on two-dimensional image data of the target image.
[0026]
Therefore, the three-dimensional image data of the target image can be obtained from outside, or can be internally created and obtained based on the two-dimensional image data of the target image. Therefore, it is possible to have various acquisition sources of the three-dimensional image data of the target image.
[0027]
Preferably, the reduced image display means displays, together with the reduced image, information indicating whether the reduced image is data created based on the three-dimensional image data.
[0028]
Therefore, whether the reduced image displayed on the display unit is based on three-dimensional image data, that is, whether the reduced image is created based on three-dimensional image data or whether it is created based on two-dimensional image data Can be reported.
[0029]
The two-dimensional image data described above is preferably image data output by photographing a subject. Therefore, it is possible to acquire data of a three-dimensional image of the subject from data of the two-dimensional image output by photographing the subject, and display a reduced image thereof.
[0030]
The above-described image display device preferably further includes data storage means capable of storing each of the plurality of data of the reduced images created and the image data from which the reduced image data was created in association with each other, The reduced image display means causes the display unit to display a list of the plurality of reduced images based on the data of the plurality of reduced images stored in the data storage means.
[0031]
Therefore, when the created reduced image data is stored in the data storage unit in association with the image data on which the creation is based, a plurality of reduced images based on the stored plurality of reduced image data are displayed in a list on the display unit. .
[0032]
Therefore, a plurality of target images indicated by the corresponding image data can be checked at a glance by checking the list of reduced images.
[0033]
The above-described image display device may be mounted on a portable device. Further, such a portable device may be a portable telephone.
[0034]
An image display method according to another aspect of the present invention includes a receiving step of receiving data of a reduced image of a type obtained by reducing a target image, and a display unit prepared in advance based on data of the reduced image received by the receiving step. And a reduced image display step for displaying a reduced image. The type of reduced image data includes left-eye image data and right-eye image data, and left-eye and right-eye image data are stereoscopically viewed. Reduced image display step includes a three-dimensional reduced image data having a parallax and two-dimensional reduced image data for two-dimensionally viewing the image in two dimensions. The image is displayed on the display unit based on the data of the reduced image including the image data for the left eye and the image data for the right eye.
[0035]
Therefore, when the reduced image of the target image is displayed on the display unit, the reduced image display step includes a reduced image based on the three-dimensional reduced image data, a reduced image based on the two-dimensional reduced image data, a left-eye image and a right-eye image. Is displayed on the basis of the data of the reduced image composed of the image data of (3), that is, based on the data according to the format of the three-dimensional image.
[0036]
Therefore, a reduced image can be displayed for the target image based on the data according to the three-dimensional image format.
[0037]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0038]
FIG. 1 shows a block configuration of a camera-equipped mobile phone (hereinafter, abbreviated as a mobile phone) 1 according to an embodiment of the present invention, and FIGS. 2 and 3 show the appearance of the mobile phone 1. Referring to FIGS. 2 and 3, the mobile phone 1 includes a camera unit 3 for photographing a subject and outputting image data, a display unit 10 including a liquid crystal or the like, and a camera key 11 operated to activate the camera unit 3. A shutter button 12 operated for shutter operation by the camera unit 3 and for storing image data obtained by shooting, an antenna 15 for communication, and a mode button 19. The types and arrangement of buttons and keys for various operations are not limited to these. For example, an item to be operated may be selected from an operation menu displayed on the display unit 10.
[0039]
Referring to FIG. 1, a mobile phone 1 includes a control unit 2 including a microprocessor such as a CPU (Central Processing Unit) for controlling each unit, a camera unit 3 including a charge coupled device (CCD) 16, a RAM (Random Access). Memory 4), a storage processing unit 5 having a compression processing unit 20 for encoding (compressing) image data by the compression processing unit 20 and performing storage processing, and developing (decoding) data relating to an image into an image. ), A storage memory 7 composed of a flash memory, a display memory 8 composed of a RAM, a display driver 9, a display 10, a camera key 11, a shutter button 12, a mode button 19, and an antenna 15. Communication control unit 13 for communication via Comprising a conversion unit 21 for format conversion between the fine wireless unit 14,2D image format and 3D image format. In FIG. 1, a thick line indicates a flow of image data.
[0040]
As the display unit 10, a liquid crystal device for slits is used, for example, as shown in Japanese Patent Application Laid-Open No. 5-122733. Therefore, when the slit liquid crystal device is driven ON, the image can be stereoscopically viewed when the display unit 10 displays the image data according to the format of the 3D image. The display unit 10 is switched between a 2D mode in which the driving of the slit liquid crystal device is turned off for displaying 2D images and a 3D mode in which the slit liquid crystal device is turned on for driving 3D images. You. This mode switching is performed by operating the mode button 19. Switching between the 2D mode and the 3D mode of the display unit 10 according to the operation of the mode button 19 is performed by the control unit 2.
[0041]
In the present embodiment, various types of image data such as image data captured and output by the camera unit 3 can be stored and stored in the storage memory 7. When a list of the image data stored in the storage memory 7 is displayed as a list, as shown in FIG. 4, images according to the respective image data are displayed as a list of reduced images, so-called thumbnails, on the display unit 10. When the image data of the storage memory 7 is displayed as a list on the display unit 10 as thumbnails, the thumbnail images are displayed in order of thumbnail data positions SD (1) to SD (9) on one screen. If there are more than nine thumbnails, the remaining thumbnails can be displayed in a list as shown in FIG. 4 by requesting the next screen.
[0042]
FIGS. 5 (A) and 5 (B), FIGS. 6, 7 (A) to (D), and FIG. 8 show a series of procedures for saving image data so that thumbnails can be displayed. 10 (B) and FIGS. 10 (A) and 10 (B) show examples of data structures for storing images in the working memory 4 and the storage memory 7. FIG.
[0043]
Here, a data structure for storing images in the working memory 4 and the storage memory 7 will be described with reference to FIGS. 9A and 9B. As shown in FIG. 9B, the data groups Gi (i = 1, 2, 3,..., N) of the image data stored in the storage memory 7 and displayed in the form of thumbnails are listed in the storage order. Is stored. The data group Gi is associated with the image number data DX for uniquely specifying the corresponding stored image, the management information 50, the thumbnail image data 60, and the original image data 70 from which the thumbnail image data is created. Have. The management information 50 includes 2D / 3D type data 51 for indicating whether the corresponding original image data 70 conforms to the 2D image format or the 3D image format, the copyright information 52 for the corresponding image data, and A next image pointer 53 which is pointer information for specifying a data group G (i + 1) of an image to be stored (in the next storage order) is included. Therefore, by following the next image pointer 53, the data group Gi can be continuously accessed according to the storage order.
[0044]
In FIG. 9B, in the data group G2, the original image data 70 includes left-eye image data L and right-eye image data R so that the original image data 70 can be stereoscopically displayed according to the 3D image format. It consists of one image data according to the 2D image format.
[0045]
Since the storage memory 7 is a flash memory, it takes a relatively long time to search its contents. Therefore, in order to enable a high-speed search, the working memory 4 of the RAM which is excellent in the search speed is used. As shown in FIG. 9A, the work memory 4 stores a management information table TB that collectively manages the management information 50 stored in the storage memory 7. The management information table TB has as many as the maximum number of data groups Gi that can be stored in the storage memory 7, for example, 1000 pieces of reference information D (j) j = 1, 2, 3,..., 1000). .
[0046]
The reference information D (j) includes image number data DX, image type data 40, 2D / 3D type data 41, copyright information 42, and a next image number pointer 43. The reference information D (j) is based on the management information 50 of the data group Gi when the data group Gi indicated by the image number data DX therein is stored using the area of the storage memory 7. Although the contents are shown, when the area is not used (not stored), it indicates "unused". The image type data 40 indicates a compression format of the original image data 70 and the thumbnail image data 60 of the corresponding data group Gi. The other data 41 to 43 except for the image type data 40 are the same as the data 51 to 53 described above, and the description is omitted.
[0047]
In the working memory 4 of FIG. 9A, the reference information D (j) corresponding to the data group Gi at the head, that is, the latest storage order, is indicated by the pointer PN.
[0048]
Therefore, when referring to (reading out) the contents of the data group Gi from the storage memory 7, first, the first reference information D (j) is searched by the pointer PN, and the searched reference information D (j) is searched. ) Is specified, and based on the specified image number data DX, the contents of the head, that is, the most recently stored data group Gi from the storage memory 7 (the management information 50, the thumbnail image data 60 and original image data 70).
[0049]
Next, a procedure for saving image data of a target image such as a subject image to be displayed so as to be displayed as a thumbnail will be described with reference to the flowcharts of FIGS. 5A and 5B. Here, the image data according to the format of the 2D image is acquired as data of the 2D image captured and output by the camera unit 3, and the image data according to the format of the 3D image is stored in the storage memory 7. It is assumed that the original image data 70 is read and converted by the conversion unit 21 in accordance with a predetermined procedure.
[0050]
FIG. 5A shows a procedure for acquiring 2D image data. First, when the camera key 11 is pressed, the camera unit 3 is activated (step S (hereinafter simply abbreviated as S) 1). When a subject is photographed by the camera unit 3, image data in a format of a 2D image of the captured subject image is stored in the display memory 8 via the work memory 4. The display unit 10 displays an image of the subject according to the 2D image format in accordance with the image data read from the CPU. At this time, it is assumed that the display unit 10 is in the 2D mode by the switching operation of the mode button 19.
[0051]
When the user who confirms the displayed image presses the shutter button 12 in order to save the image (S2), the 2D image of the subject that is captured when the shutter button 12 is pressed and output from the camera unit 3 is displayed. Image data in accordance with the format of the image (hereinafter referred to as photographed image data) is written by the control unit 2 into the working memory 4 and temporarily stored, and also stored in the display memory 8 (S3). The image based on the captured image data stored in the display memory 8 is displayed on the display unit 10 via the display driver unit 9, and when the user who confirms the displayed captured image presses the shutter button 12 again, the thumbnail is displayed. The storage processing unit 5 performs processing for storing the captured image data so that it can be displayed (S5).
[0052]
FIG. 6 shows the procedure of the storage process. The storage processing unit 5 creates the thumbnail image data 60 in the work memory 4 from the image data temporarily stored in the work memory 4 (S10).
[0053]
The procedure of the thumbnail image creation processing (S10) is shown in the flowchart of FIG. Here, since it is determined based on the captured image data that the data follows the 2D image format ("2D" in S11a), the captured image data is arranged in the bit map of the 2D image in the working memory 4 (S11b). Thereafter, an image smaller than the size of the thumbnail image, that is, a thumbnail image is created based on the captured image data (S13).
[0054]
The processing of S13 in FIG. 7A will be described with reference to the thumbnail size cut sequence in FIG. Here, it is assumed that the image of the original image data from which the bitmap thumbnail of the working memory 4 is created has the horizontal size X and the vertical size Y, and the thumbnail has the maximum horizontal size x and the maximum vertical size. Assume y.
[0055]
First, the horizontal size X and the vertical size Y of the original image data are compared with the maximum horizontal size x and the maximum vertical size y of the thumbnail (S20, S21, S25), and X> x. If Y> Y (YES in S20, YES in S21), the image size of the original image data exceeds the maximum vertical and horizontal sizes of the thumbnails indicated by diagonal lines in the figure (S22). The data is reduced without changing the ratio between the horizontal size X and the vertical size Y of the original image data so that the horizontal size X matches the maximum horizontal size x, and further exceeds the maximum vertical size y in the vertical direction. The data of the part is cut (S23). Thus, a thumbnail image for a thumbnail is created from the original image data (S28).
[0056]
The reduction here may be performed, for example, as follows. That is, the bitmap data constituting the original image data is divided into a plurality of matrix-like bit groups, and the average value of the divided bit groups of each matrix is adopted as a representative value of the matrix. The data may be reduced by being configured from the adopted representative values. In this case, since a thumbnail image is created with a set of representative values, the thumbnail image faithfully reproduces the original image.
[0057]
If X> x and Y ≦ y (YES in S20, NO in S21), the data of the horizontal size X of the original image data that exceeds the maximum horizontal size x of the thumbnail is cut (S24). , A thumbnail image is created (S28).
[0058]
If X ≦ x and Y> y (NO in S20, YES in S25), the data of the vertical size Y of the original image data that exceeds the maximum vertical size y of the thumbnail is cut (S26). A thumbnail image is created (S28).
[0059]
If X ≦ x and Y ≦ y (NO in S20, NO in S25), the vertical and horizontal sizes of the original image data are smaller than those of the thumbnails (S27). Instead, the original image data itself becomes a thumbnail image (S28). With the above procedure, the creation of the thumbnail image of FIG. 6 ends (S10).
[0060]
When creating thumbnail image data from the original image data described above, a procedure is employed in which data exceeding the size is cut so as to satisfy the thumbnail size, so that thumbnails can be easily created.
[0061]
The storage processing unit 5 encodes the original image data and the data of the thumbnail image created in S10 by the compression processing unit 20, and assigns 1 to the image number data DX in order to search a storable area of the storage memory 7. It is set (S30). Next, it is determined whether or not the reference information D (j) indicated by the image number data DX in the working memory 4 indicates “unused”. If it is not “unused” (NO in S31), the image number data DX is incremented by 1 (S32), and the reference information D (j) indicated by the incremented image number data DX is similarly “unused”. Is determined.
[0062]
As described above, the image number data DX of the reference information D (j) indicating “unused” is found from the working memory 4 while incrementing the image number data DX. In the case of FIG. 9A, since it is determined that the reference information D (1) indicates “unused”, “1” is determined as the “unused” image number data DX.
[0063]
As described above, when the work memory 4 is searched and the image number data DX corresponding to the “unused” area of the storage memory 7 is specified, the image number data DX of the storage memory 7 is The data group Gi including the encoded (compressed) original image data 70 and the thumbnail image data 60 and the management information 50 is written and stored in the corresponding area. In the management information 50, the 2D / 3D type data 51, the copyright information 52, and the next image pointer 53 are written (S33). At this time, the stored original image data 70 and thumbnail image data 60 conform to the 2D image format obtained by photographing with the camera unit 3. Therefore, in the corresponding management information 50, the 2D / 3D type data 51 is “2D "And" None "are written in the copyright information 52, respectively.
[0064]
Next, in the working memory 4, the reference information D (j) corresponding to the current image number data DX, the image type data 40 is “JPEG” (Joint Photographic Experts Group), and the 2D / 3D type data 41 is "2D" is written in the copyright information 42, and "None" is written in the copyright information 42, and the next image number pointer 43 is written (S34). Here, the current value of the pointer PN is written to the next image number pointer 43. Thereafter, the pointer PN is updated to indicate the current image number data DX (S35).
[0065]
In this way, the state of the memory after the new image data, that is, the data group G1 is additionally stored from the state of FIGS. 9A and 9B is the state of FIGS. 10A and 10B. Shown.
[0066]
Here, a case will be described in which the image data stored so as to be displayed as thumbnails is 3D image data according to the 3D format. As shown in FIG. 5B, image data according to the 3D image format is obtained (S1a). Specifically, the control unit 2 stores the specified original image data 70 among the original image data 70 (the original image data 70 of the data group G1 or G3) according to the 2D image format stored in the above-described procedure. 7 to the conversion unit 21, which converts the data into image data according to the 3D image format, that is, image data including left-eye image data L and right-eye image data R, and converts the data into the working memory 4. Output to Thereby, image data according to the 3D image format is obtained. The left-eye image data L and the right-eye image data R acquired here have a parallax so that they can be stereoscopically viewed.
[0067]
Thereafter, the storage process (S5) of FIG. 6 is performed. In the storage process, first, a thumbnail creation process (S10) is performed.
[0068]
In the thumbnail creation process shown in FIG. 7A, based on the acquired image data, it is determined that the image data conforms to the 3D image format (“3D” in S11a). In the bitmap for the 3D image of the predetermined size of No. 4, the corresponding left-eye image data L and right-eye image data R are adjacent to the left and right sides as shown in FIG. It is arranged (S12 in FIG. 7A). The image data in FIG. 7B is original image data from which a thumbnail image is created.
[0069]
Then, the original image data of FIG. 7B is edited in FIG. 7C so as to become image data having a size that satisfies the size of the thumbnail displayed on the display unit 10, and as shown in FIG. 7D. A thumbnail image is created (S13). Specifically, when the original image data conforms to the 3D image format, the original image data in which the left-eye image data L and the right-eye image data R are adjacently arranged as shown in FIGS. 7B and 7C. It is assumed that a data image has a vertical size Y and a horizontal size X, and that a thumbnail has a maximum vertical size y and a maximum horizontal size x. Then, in accordance with the procedure of FIG. 8, reduction by size cut or reduction using the representative value is performed in the same manner as described above, and a thumbnail image as shown in FIG. 7D can be obtained.
[0070]
Thereafter, the original image data of FIG. 7B and the thumbnail image data of FIG. 7D are stored in the data group Gi in the unused area of the storage memory 7 in S30 to S35 of FIG. Stored in association with each other. Since the stored corresponding original image data 70, that is, the data of the image in FIG. 7B conforms to the 3D image format, the corresponding 2D / 3D type data 41 (51) indicates "3D".
[0071]
Here, a procedure for switching the display unit 10 to the 3D mode and displaying a list of thumbnails will be described with reference to the flowchart of FIG. In the 3D mode, as shown in FIG. 12A, left-eye image data L is arranged on the left half of the screen of the display unit 10, and right-eye image data R is arranged and displayed on the right half. You. It is assumed that a maximum of nine thumbnail images can be displayed on one screen of the display unit 10.
[0072]
First, the value of the pointer PN indicating the head image number data DX is read out from the working memory 4 and a variable I for counting thumbnail images to be displayed is set to 1 (S40), and the read value of the pointer PN is set. It is determined whether or not indicates a value of valid image number data DX (S41). If it is determined that it does not indicate valid image number data, or if it is determined that the variable I is not smaller than the number of displayable thumbnails (= 9), that is, it is exceeded (NO in S41 or NO in S42) ), A series of processing ends.
[0073]
Otherwise (YES in S41 and YES in S42), the first image number data DX indicated by the pointer PN is searched in the working memory 4, and the first image number data DX corresponding to the first image number data DX obtained as a search result is obtained. The thumbnail image data 60 of the data group Gi in the memory 7 is read out to the working memory 4 (S43).
[0074]
Then, the decompression processing unit 6 decodes (decompresses) the thumbnail image data 60 read out to the work memory 4 in accordance with the compression format indicated by the corresponding image type data 40 (S44). 4 are arranged in the following procedure so as to be drawn at the thumbnail data position SD (I).
[0075]
First, a process for changing data arranged based on the 2D / 3D type data 51 corresponding to the image data 60 of the thumbnail read this time is performed. Specifically, when the corresponding 2D / 3D type data 51 indicates “2D”, the process proceeds to S46 described below.
[0076]
When “3D” is indicated, the control unit 2 places the left-eye image data L of the read thumbnail image data 60 in a position corresponding to the thumbnail data position SD (I) on the left half of the screen in the display memory 8. The thumbnail image data 60 of the read thumbnail image data 60 is arranged at a position corresponding to the thumbnail data position SD (I) on the right half side of the screen in the display memory 8 (see FIG. 12B). (See FIG. 12B, S47). Here, the position corresponding to the thumbnail data position SD (I) is a position for stereoscopically viewing an image composed of the left-eye image data L and the right-eye image data R via the slit liquid crystal display of the display unit 10. is there.
[0077]
On the other hand, when the 2D / 3D type data 51 indicates "2D"("2D" in S45), the 2D thumbnail image is converted into a thumbnail image conforming to the 3D image format so that it can be displayed in the 3D mode (S46). This procedure will be described with reference to FIGS. 13B to 13D in accordance with the flowchart of FIG.
[0078]
The encoded thumbnail image data 60 in the 2D image format is shown in FIG. When the thumbnail image data 60 is read from the storage memory 7, it is provided to the conversion unit 21. The conversion unit 21 reduces the given thumbnail image data 60 in the working memory 4 so that the width of the thumbnail image in the horizontal direction (X direction) becomes １ ／, and converts the thumbnail image data 60 into the image data 60A shown in FIG. (S60). This reduction is performed, for example, by skipping pixel data in the X direction of the thumbnail image data 60 one by one.
[0079]
Thereafter, the thumbnail image data 60A is arranged adjacently as the left-eye image data L and the right-eye image data R, respectively, as shown in FIG. 13D having the same size as the thumbnail image data 60 in FIG. The image data 60B according to the 3D image format is created (S61).
[0080]
As described above, the thumbnail image data 60 in the 2D image format is converted into the image data 60B in the 3D image format.
[0081]
The same left-eye image data L and right-eye image data R without parallax of the image data 60B obtained by this conversion are read from the working memory 4 and decoded by the expansion processing unit 6 to be displayed on the display memory 8. In the same manner as the thumbnail image 60 in the 3D image format, the thumbnail image is arranged at a position according to the thumbnail data position SD (I) for stereoscopic viewing (see FIG. 12B, S47).
[0082]
Then, as shown in FIG. 12 (B), the left-eye image data L and the right-eye image data R arranged in the display memory 8 in accordance with the thumbnail data position SD (I) have the 2D / 3D data according to the corresponding 2D / 3D type data 41. The character image for displaying the 3D type is overwritten and arranged by the expansion processing unit 6 with respect to the corresponding left-eye image data L and right-eye image data R according to the 3D image format (S48).
[0083]
After that, the variable I is incremented by 1 to indicate the next thumbnail image data 60 (S49), and the process returns to S41, and the subsequent processing is similarly repeated for the next thumbnail image data 60. Finally, a list of thumbnail images 60 in the storage memory 7 is displayed as shown in FIG.
[0084]
Therefore, on the display unit 10 in the 3D mode, the thumbnail images according to the thumbnail image data 60 in the 3D image format are displayed in a stereoscopic manner, and the thumbnail images according to the thumbnail image data 60 in the 2D image format are displayed in a planar manner.
[0085]
When a list of thumbnail images is displayed on the display unit 10, the character image CH indicating the 2D / 3D distinction of the corresponding original image data 70 is displayed. Therefore, the original image data 70 corresponding to the displayed thumbnail is displayed as a 2D image. At a glance, it is possible to recognize at a glance whether to follow the format or the 3D image format. Here, the character image CH is displayed separately for “2D” and “3D” as shown in FIG. 4, but only “2D” may be displayed as the character image CH and the others may be recognized as 3D. Conversely, only “3D” may be displayed as the character image CH, and the others may be recognized as 2D.
[0086]
The user can check the thumbnail images displayed in the list as shown in FIG. 4 at a glance, although the images stored in the storage memory 7 are reduced. When a desired thumbnail image is designated by operating a button or the like, original image data 70 corresponding to the thumbnail image is read from the storage memory 7 and displayed on the display unit 10.
[0087]
At this time, when the 2D / 3D type data 41 corresponding to the specified thumbnail image indicates “3D”, the left-eye image data L of the original image data 70 corresponding to the thumbnail image is in the horizontal (horizontal: X) direction. Are enlarged twice and displayed in the 2D mode. At this time, when the user presses the mode button 19, the control unit 2 switches the display unit 10 to the 3D mode, and controls the display unit 10 to display an image according to the original image data 70 read from the storage memory 7. Therefore, the user can stereoscopically view the displayed image. When the 2D / 3D type data 41 corresponding to the specified thumbnail image indicates “2D”, an image according to the corresponding original image data 70 is displayed on the display unit 10 in the 2D mode.
[0088]
In this way, an image desired to be converted from a 2D image to a 3D image can be designated via the thumbnail list display.
[0089]
Here, original image data (3D image data) 70 that is stored in the storage memory 7 and generates a corresponding thumbnail image is created and acquired from captured image data that is captured and output by the camera unit 3. However, the acquisition procedure is not limited to this.
[0090]
For example, 3D image data received (downloaded) from the outside via the antenna 15, the radio unit 14, and the communication control unit 13 by communication, or an external device such as an image reading device (not shown) in which the mobile phone 1 in FIG. 3D image data input from an external device. Alternatively, the camera unit 3 itself may output data according to a 3D image format instead of a 2D image by taking an image. In such a case, the process of creating the left-eye image data L and the right-eye image data R for the 3D image data in FIG. 7A is omitted.
[0091]
Similarly, original image data (2D image data) 70 that is stored in the storage memory 7 and generates a corresponding thumbnail image is obtained from captured image data that is captured and output by the camera unit 3. The procedure is not limited to this. For example, 2D image data received (downloaded) from the outside via the antenna 15, the wireless unit 14, and the communication control unit 13 by communication may be used. Alternatively, the mobile phone 1 in FIG. 1 may be connected to an external device such as an image reading device (not shown) and may be 2D image data input from the external device.
[0092]
Here, the mobile phone 1 is provided with a function of displaying image data according to the format of the 3D image as a thumbnail, but the device equipped with this function is not limited to the mobile phone, and other types of mobile devices and display functions are provided. The present invention can be similarly applied to various information processing devices having
[0093]
The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
[0094]
【The invention's effect】
According to the present invention, when displaying the reduced image of the target image on the display unit, the reduced image display means displays both the reduced image based on the three-dimensional reduced image data, the reduced image based on the two-dimensional reduced image data, and the left eye. The display is performed based on the data of the reduced image composed of the image data for the right eye, that is, based on the data according to the format of the three-dimensional image. Therefore, a reduced image can be displayed for the target image based on the data according to the three-dimensional image format.
[Brief description of the drawings]
FIG. 1 is a block configuration diagram of a camera-equipped mobile phone according to an embodiment of the present invention.
FIG. 2 is an external view of the camera-equipped mobile phone of FIG.
FIG. 3 is an external view of the camera-equipped mobile phone shown in FIG. 1;
FIG. 4 is a diagram showing a display example of a list of thumbnail images according to the embodiment;
FIGS. 5A and 5B are flowcharts showing a procedure for storing image data according to the present embodiment so that thumbnail images can be displayed.
FIG. 6 is a flowchart illustrating a procedure of a storage process in FIG. 5;
FIGS. 7A to 7D are diagrams showing a thumbnail image creation processing procedure.
FIG. 8 is a flowchart of a thumbnail size cut sequence.
FIGS. 9A and 9B are diagrams illustrating an example of a data structure for storing an image in a work memory and a storage memory.
FIGS. 10A and 10B are diagrams showing a state after a storage image is added in FIGS. 9A and 9B.
FIG. 11 is a flowchart showing a thumbnail list display procedure based on thumbnail image data stored in the present embodiment.
FIGS. 12A and 12B are diagrams illustrating the arrangement of thumbnail image data when displaying in 3D mode.
13A to 13D are diagrams illustrating a procedure for converting thumbnail image data from a 2D image format to a 3D image format.
[Explanation of symbols]
2 control section, 3 camera section, 4 working memory, 5 storage processing section, 6 expansion processing section, 7 storage memory, 8 display memory, 10 display section, 11 camera key, 12 shutter button, 19 mode button, 20 Compression processing unit, 21 conversion unit, L left-eye image data, R right-eye image data, TB management information table, DX image number data, D (j) reference information, Gi data group, 40 image type data, 41, 51 2D / 3D type data, 42, 52 copyright information, 43 next image number pointer, 53 next image pointer, PN pointer, SD (I) thumbnail data position.

Claims (13)

A display unit,
A reduced image display unit for displaying the reduced image on the display unit based on data of different types of reduced images obtained by reducing the target image,
The types of the reduced image data include:
The left-eye image data and the right-eye image data include left-eye image data and right-eye image data, and the left-eye image data and the right-eye image data have parallax for stereoscopic viewing. And two-dimensional reduced image data,
The reduced image display means includes:
An image display device, wherein the reduced image based on the two-dimensional reduced image data is displayed on the display unit based on the reduced image data including the left-eye image data and the right-eye image data. The reduced image display means includes:
2. The image display device according to claim 1, further comprising a creating unit configured to create the reduced image data including the left-eye image data and the right-eye image data from the two-dimensional reduced image data. 3. The creating means reduces the two-dimensional reduced image data so that the horizontal width of the two-dimensional reduced image is reduced to half, and converts the reduced two-dimensional reduced image data for the left eye and the right eye. The image display device according to claim 2, wherein the image display device is image data. 4. The image display device according to claim 1, wherein the display unit displays an image in a three-dimensional manner so as to be stereoscopically visible. 5. The image processing apparatus further includes a three-dimensional reduced image creating unit that creates the three-dimensional reduced image data based on three-dimensional image data including a left-eye image and a right-eye image for stereoscopically viewing the target image,
The three-dimensional reduced image creating means includes:
5. The image processing apparatus according to claim 1, further comprising a reduction unit configured to reduce data of the left-eye image and the right-eye image of the three-dimensional image data so that the target image satisfies the size of the reduced image. 3. The image display device according to 1. The reduction means,
The image according to claim 5, further comprising a size cutting unit configured to cut data exceeding a size of the reduced image of the target image from data of the left-eye image and the right-eye image of the three-dimensional image data. Display device. The data of the left-eye image and the right-eye image of the three-dimensional image data is bitmap data,
The reduction means,
When the bitmap data is divided into a plurality of matrix data, a representative value in each matrix is extracted, and the left-eye image and the right-eye image of the three-dimensional image data are extracted based on the extracted representative values. The image display device according to claim 5, wherein the image display device comprises: The image display device according to claim 1, further comprising a two-dimensional reduced image creating unit that creates the two-dimensional reduced image data based on data of a two-dimensional image of the target image. The image display device according to claim 8, wherein the three-dimensional image data is one of data provided from outside and data created based on the two-dimensional image data of the target image. . The reduced image display means includes:
The information according to any one of claims 4 to 9, wherein together with the reduced image, information indicating whether or not the reduced image is data created based on the three-dimensional image data is displayed. Image display device. The image display device according to claim 8, wherein the two-dimensional image data is image data output by photographing a subject. Further comprising data storage means capable of storing the data of each of the plurality of created reduced images and the image data from which the reduced image data was created in association with each other,
12. The apparatus according to claim 1, wherein the reduced image display unit displays a list of the plurality of reduced images on the display unit based on data of the plurality of reduced images stored in the data storage unit. The image display device according to any one of the above. A receiving step of receiving data of different types of reduced images obtained by reducing the target image;
A reduced image display step of displaying the reduced image based on the data of the reduced image received in the receiving step, in a display unit prepared in advance to display the image in a three-dimensionally stereoscopic manner. ,
The types of the reduced image data include:
The left-eye image data and the right-eye image data include left-eye image data and right-eye image data, and the left-eye image data and the right-eye image data have parallax for stereoscopic viewing. And two-dimensional reduced image data,
The reduced image display step includes:
The reduced image based on the two-dimensional reduced image data, the left-eye and right-eye image data, and the left-eye and right-eye image data on the display unit based on the reduced image data is the same image data An image display method characterized by displaying.

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