WO2004093468A1 - 画像ファイル作成装置及び画像ファイル再生装置 - Google Patents
画像ファイル作成装置及び画像ファイル再生装置 Download PDFInfo
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- WO2004093468A1 WO2004093468A1 PCT/JP2004/005537 JP2004005537W WO2004093468A1 WO 2004093468 A1 WO2004093468 A1 WO 2004093468A1 JP 2004005537 W JP2004005537 W JP 2004005537W WO 2004093468 A1 WO2004093468 A1 WO 2004093468A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/167—Synchronising or controlling image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Definitions
- Image file creation device and image file reproduction device are Image file creation device and image file reproduction device
- the present invention provides an image file that clarifies the distinction between an image file for three-dimensional display and an image file for two-dimensional display when creating an image file for three-dimensional display.
- FIG. 13 is a conceptual diagram showing an example of such a lenticular-type recording data overnight format. From the left-eye image 301 shown in Fig. 13 (a) and the right-eye image 302 shown in Fig. 13 (b), each is thinned out horizontally by 1 to 2 as shown in Fig. 13 (c). Create and record the single image shown. Such a composite of multiple images into a single image is called an integrated image. At the time of reproduction, this integrated image 303 is rearranged into a format to be displayed on each display, and stereoscopic display is performed.
- the integrated image can be handled as a normal two-dimensional image, it can be compressed using a predetermined compression method or stored in a predetermined file format.
- a predetermined compression method and an existing file format which are widely used, are used, even a conventional playback device that does not have a 3D image display function recognizes the file as an existing file, and the integrated image is converted to a 2D image. It can be displayed as a two-dimensional image.
- As a specific compression method and file format in the case of a still image, JPEG, BMP, etc.
- MPEG-1, MPEG-2, MPEG-4, Motion JPEG, etc. as compression methods, and QuickTime, Re al Sys tem, Windows (R) Media Video, etc.
- Ex if (Exchangeable), which is the standard of the image file format used in digital still cameras and related systems, is used. Recording with a file conforming to the image file format) and the DCF (Design rule for Camera File system) standard enables playback on many digital still cameras.
- DCF Design rule for Camera File system
- a file that conforms to the DCF standard is called a DCF file
- a directory that stores DCF files is called a DCF directory. Therefore, the naming rules for DCF files and DCF directories are defined.
- the naming rules for DCF files are as follows.
- the file name is composed of "file name” and "" and "extension”.
- the naming rules and directory structure of the DCF directory are as follows.
- the directory name shall be 8 characters.
- the first three characters of the directory name are numbers from "100" to "999", and are called directory numbers.
- the last 5 characters of the directory name are free as long as they are either single-byte alphabetic capital letters, numbers, or '-' (under bar).
- Figure 14 shows an example of a directory structure conforming to the DCF standard.
- special files can be collected in a specific directory by allowing the user to specify the directory in which to record the file when shooting with an electronic still camera.
- the present invention has been made to solve the above problems, and the purpose is to determine whether a recorded image file is 2D image data or 3D image data.
- An object of the present invention is to provide an image file creating device capable of discriminating and an image file reproducing device for reproducing the data. Disclosure of the invention
- an image file creating apparatus for creating an image file of a fixed file format, an information creating means for creating three-dimensional image control information for three-dimensionally displaying the images of the plurality of viewpoints; File creation means for creating an image file containing an image and the three-dimensional image control information, and the file name of the image file and / or a directory storing the image file,
- the above-mentioned problem is solved by making it possible to determine whether or not is a file including images of a plurality of viewpoints.
- the directory for storing the image file is different from the directory for storing the image file composed of one viewpoint image, so that whether or not the image file is a file containing images of a plurality of viewpoints is determined.
- the file name is a file name indicating a file including images of a plurality of viewpoints, so that it is possible to determine whether or not the image file is a file including images of a plurality of viewpoints. To solve the problem.
- the file name is different from the file naming rule of a file composed of one viewpoint image, so that it is possible to determine whether the image file is a file including images of a plurality of viewpoints. This solves the above-mentioned problem.
- the file name may have an extension different from the extension of a file composed of one viewpoint image, so that it is possible to determine whether the image file is a file including images of a plurality of viewpoints.
- an image file reproducing apparatus that reproduces a plurality of images corresponding to each of a plurality of viewpoints from an image file of a predetermined file format
- a three-dimensional display for displaying images of the plurality of viewpoints from the image file.
- the image file reproducing apparatus for reproducing a plurality of images corresponding to the file name of the image file and / or whether or not the image file is a file including images of a plurality of viewpoints from a directory in which the image file is stored.
- Determination means for determining whether or not the plurality of viewpoint images are three-dimensionally displayed from the image file, and analysis means for analyzing three-dimensional image control information. The above-mentioned problem is solved by reproducing the images of the plurality of viewpoints according to the result of the means.
- an image file creating apparatus for creating an image file of a predetermined file format from a plurality of images corresponding to each of a plurality of viewpoints.
- Information creating means for creating image control information; and file creating means for creating an image file including the images of the plurality of viewpoints and the three-dimensional image control information, wherein a file name and a file name of the image file are provided.
- the directory for storing the image file is different from the directory for storing the image file composed of the images of one viewpoint, whereby the file containing the images of a plurality of viewpoints is provided.
- the file name is a file name indicating a file including images of a plurality of viewpoints, so that it is determined whether the image file is a file including images of a plurality of viewpoints.
- the file name is a file consisting of an image of one viewpoint.
- the file name is set to an extension different from the extension of a file composed of one viewpoint image, so that it is determined whether or not the image file is a file including images of a plurality of viewpoints.
- an image file reproducing apparatus for reproducing a plurality of images corresponding to each of a plurality of viewpoints
- a three-dimensional image control for displaying the images of the plurality of viewpoints three-dimensionally from the image file.
- Analyzing means for analyzing information, and reproducing the images from the plurality of viewpoints in accordance with the result of the analyzing means, whereby it becomes possible to distinguish between three-dimensional display image data and two-dimensional display image data.
- Advantageous effects can be obtained.
- an image file reproducing apparatus that reproduces a plurality of images corresponding to each of a plurality of viewpoints from an image file of a predetermined file format, the file name and Z of the image file or the image file
- a determination unit that determines whether the image file is a file including images of a plurality of viewpoints from a directory in which the images are stored, and a three-dimensional display for displaying the images of the plurality of viewpoints from the image file in three dimensions.
- Analyzing means for analyzing the three-dimensional image control information, and reproducing the images from the plurality of viewpoints in accordance with the result of the discriminating means and / or the analyzing means. This has the advantageous effect of enabling discrimination from data.
- FIG. 1 shows a configuration of an image file creating apparatus according to a first embodiment of the present invention.
- Figure 2 is an example of a file name that specifies that the file is a 3D image data file in accordance with the DCF standard.
- Figure 3 shows an example of a file name that extends the DCF standard and specifies that the file is a 3D image data file.
- Fig. 4 shows an example of a file name that extends the DCF standard and specifies that the file is a 3D image data file.
- FIG. 5 shows an example of a directory structure when the DCF standard is extended to store three-dimensional image data.
- FIG. 6 shows an example of a directory structure when the DCF standard is extended to store three-dimensional image data.
- FIG. 7 shows an example of a directory structure when the DCF standard is extended to store three-dimensional image data.
- FIG. 8 is a block diagram showing a configuration of an image file reproducing device according to the first embodiment of the present invention.
- FIG. 9 is a block diagram showing a configuration of an image file creating device according to the second embodiment of the present invention.
- FIG. 10 is an example of a directory structure when the 3D image data is stored by extending the DCF standard.
- FIG. 11 shows an example of a directory structure in the case where three-dimensional image data is stored by extending the DCF standard.
- FIG. 12 shows an example of a directory structure when the DCF standard is extended to store three-dimensional image data.
- FIG. 13 is a conceptual diagram showing an example of a lenticular method recording data format.
- FIG. 14 is an example of a directory structure conforming to the DCF standard. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a block diagram illustrating a configuration of an image file creation device according to a first embodiment of the present invention.
- the image file creation device 100 arranges each viewpoint image at an appropriate position according to the specification from the control unit 101 and the control unit 101, which specifies a method of integrating the viewpoint images.
- 3D image control information creation unit 10 3 that creates 3D image control information by formatting the arrangement method of each viewpoint image and various characteristics of the 3D image.
- a coding unit 104 for coding the integrated image data, a multiplexing unit 105 for multiplexing the coded data and the 3D image control information and outputting the multiplexed data, and a file for recording the multiplexed data as a file.
- File name deciding section 106 for deciding the name
- storage directory deciding section 107 for deciding the directory where the file to be recorded is stored
- file creator for recording the file with the decided storage directory and file name It consists of 108.
- An image signal composed of consecutive frames is input to the image file creating device for each frame.
- the input image signal is not limited to the left-eye data and the right-eye data, but may be N-eye data.
- the control unit 101 specifies characteristics of a three-dimensional image such as a method of integrating images.
- the image integration unit 102 creates integrated image data in the format specified by the integration method.
- the method of integration may be electronic or optical.
- the 3D image control information creation unit 103 formats the 3D image characteristics such as information indicating that the image data is 3D image data and the arrangement method of each viewpoint image, and displays the image in 3D. To create the necessary 3D image control information.
- 3D image system Elements of the control information can include elements such as the number of viewpoints, the arrangement method of each viewpoint image, the thinning method, and the intensity of the 3D image.
- the 3D image control information to be created may include only necessary elements without including all of these elements.
- the encoding unit 104 encodes the integrated image data created by the image integration unit 102 to create encoded data.
- an encoding method an international standard method as described in the conventional technology may be used, a non-standard method may be used, and no compression may be performed.
- the multiplexing unit 105 multiplexes the encoded data created by the encoding unit 104 with the 3D image control information created by the 3D image control information creating unit, and converts the multiplexed data into a predetermined format. .
- a predetermined format such as a Wi-Fi format
- the 3D image control information is generally included as part of the existing file header using a mechanism that extends the header provided in the existing format. Shall be recorded.
- 3D image control information can be multiplexed by expanding the application marker segment specified by JPEG, or 3D image by expanding the tag specified by Exif.
- the file name determining unit 106 determines the name of the file when the multiplexed data is recorded as a file. At this time, the name of the file should clearly indicate that the file is a 3D image file.
- the following describes an example of recording a file of 3D image data conforming to the DCF standard or extending the DCF standard.
- Figure 2 shows an example of a file name that specifies that the file is a 3D image data file in accordance with the DCF standard.
- the first four characters of the file name are free if they are either single-byte alphanumeric capital letters, numbers, or '_' (underscore).
- the file can be used as 3D image data. May be specified.
- the fourth character of the file name may be determined to be “-” (underscore).
- 3D and “—” (under bar) characters are used to indicate that the file is a 3D image data file.
- other characters may be used instead of these characters. It doesn't have to be a letter, it doesn't have to be the first or fourth letter.
- a file number portion corresponding to the latter half of the file name may be used to indicate that the file is a 3D image data file.
- Figure 3 shows an example of a file name that extends the DCF standard and specifies that it is a 3D image data file.
- the file names conform to the file naming rules of the DCF standard.
- a player that conforms to the existing DCF standard can recognize that the file is a JPEG file that does not conform to the DCF standard.
- the extension of the file may clearly indicate that the file is a three-dimensional image data file.
- the extension may be .JPE or .JPEG instead of .JPG.
- Files with these extensions are not recognized as DCF files, but are often recognized as JPEG files on PCs. Therefore, JPEG playback software on PC Then, it is reproduced as two-dimensional image data.
- a completely new extension may be used instead of .J PE or .J PEG.
- the storage directory determining unit 107 determines a directory for storing a file to be recorded. At this time, it is necessary to clearly indicate that the file is a 3D image data file in the directory in which it is stored.
- the file name deciding unit a case will be described as an example where a file of 3D image data is recorded based on the DCF standard or extended by the DCF standard.
- Fig. 5 shows an example of the directory structure when the DCF standard is extended to store 3D image data.
- a directory named “DC IM” is created directly under the root directory
- a DCF directory is created under “DC IM”
- a directory is created under the DCF directory.
- DCIM digital image data
- a directory named “3D IM” is created directly under the root directory, and files of 3D image data are stored under that directory, so that 2D image data is stored under “DCIM”. Since the 3D image data is stored under “3D IM”, it is possible to distinguish between the 2D image data and the 3D image data.
- the name “3D IM” is used as an example.
- a directory that conforms to the DCF standard directory naming rule of "100 A BCDE” is created under "3 DIM”, and files of 3D image data are stored under that directory.
- the 3D image data file may be stored directly under the “3D IM” directory, or the 3D image data file may be stored under a deeper directory.
- the directory under “3D IM” is the DCF standard. It may or may not conform to directory naming conventions.
- FIG. 6 shows another example of the directory structure when the DCF standard is extended to store three-dimensional image data.
- a directory named “3D—FI LES” is created directly under “DCIM” and deviates from the DCF standard directory naming rule, and files of 3D image data are stored under that directory. .
- the name “3D—FILES” is used as an example, but it is not necessary to use this name as long as it is different from the DCF directory naming rule.
- FIG. 7 shows another example of the directory structure when the DCF standard is extended to store three-dimensional image data.
- a directory named “3D—FILES” is created in the DCF directory (“100ABCDE”) directly under “DC IM”, and files of 3D image data are stored under that directory. You. This makes it possible to distinguish between two-dimensional image data and three-dimensional image data.
- the name "3D-F I LES” is used as an example, but it does not have to be this name.
- the file creation unit 108 records the file on a recording medium or the like according to the file name determined by the file name determination unit 106 and the storage directory determined by the storage directory determination unit 107.
- the output destination of the file creation unit 108 is connected to a recording device such as an IC memory, a magneto-optical disk, a magnetic tape, or a hard disk, and a communication device such as a LAN or a modem.
- both the file name deciding unit 106 and the storage directory deciding unit 107 determine the file name and the storage directory for clearly indicating that they are 3D image data, but only one of them determines the file name and the storage directory. It may be specified that the data is three-dimensional image data, or both may be specified to indicate that the data is three-dimensional image data. In the above description, the case of the DCF standard has been described as an example, but other standards and standards may be used. Also, the attributes of the 3D image data file and the directory where the file is stored are set to read-only or hidden, so that 3D image control information is not destroyed by existing JPEG editing tools. May be. These settings may be switched by a setting at the time of recording or an instruction from the user.
- FIG. 8 is a block diagram showing a configuration of the image file reproducing device according to the first embodiment of the present invention.
- an image file reproducing device 200 includes a file reading unit 201 that reads out a file, a demultiplexing unit 202 that separates multiplexed data, and a device that analyzes 3D image control information. It comprises a D image control information analyzer 203, a decoder 204 for decoding encoded data, and an image converter 205 for converting image data into a display format.
- the file reading unit 201 reads a file to be reproduced from a recording device or a communication device, extracts multiplexed data, and interprets a file name and a storage directory.
- the demultiplexing unit 202 separates the multiplexed data extracted by the file reading unit into encoded data and 3D image control information. Although not shown in FIG. 8, when audio text is multiplexed, those data are also separated by the demultiplexing unit 202.
- the 3D image control information analysis unit 203 analyzes the 3D image control information and extracts characteristics of the 3D image such as the number of viewpoints / the arrangement method of each viewpoint image.
- the decoding unit 204 decodes the image data from the encoded data separated by the demultiplexing unit 202.
- the image conversion unit 205 has a two-dimensional display device using a normal cathode ray tube or liquid crystal panel. Display devices with different display formats are connected, such as a stereoscopic display device using a display, lenticular method, parallax barrier method, time-division method, and the like.
- the image conversion unit 205 converts the decoded image data into a display format based on the number of viewpoints and the arrangement method of each viewpoint image.
- a file exists under DCIM but has 3D image control information, it may be determined to be an error file. Either the directory where the file is stored or the presence or absence of 3D image control information can be determined. Priority may be given.
- FIG. 9 is a block diagram showing a configuration of an image file creating device according to the second embodiment of the present invention.
- the image file creation device 110 includes a control unit 101, an image integration unit 102, a 3D image control information creation unit 103, an encoding unit 104, and a multiplexing unit 105.
- a multiplexing unit 113 that multiplexes the coded data and various information and outputs the multiplexed data.
- Control unit 101 image integration unit 102, 3D image control information creation unit 103, encoding unit 104, multiplexing unit 105, file name determination unit 106, storage directory determination
- the operations of the unit 107 and the file creation unit 108 are the same as those in the first embodiment, and thus the description thereof will be omitted.
- the encoding unit 112 encodes the viewpoint image data selected by the image selection unit 111 to create encoded data.
- an encoding method an international standard method as described in the conventional technology may be used, a non-standard method may be used, and no compression may be performed. Also, since it has the same function as the encoding unit 104, only one of them may exist and also have the function.
- the multiplexing unit 113 converts the encoded data created by the encoding unit 112 into a predetermined format. Although not shown in FIG. 9, when multiplexing voice or text, those data are also multiplexed by the multiplexing unit 113. In addition, since the multiplexing unit 105 has the same function as that of the multiplexing unit 105, only one of the multiplexing units may exist and may also have the function.
- FIG. 10 shows an example of a directory structure in the case where three-dimensional image data is stored by extending the DCF standard in the second embodiment.
- the first implementation As described in the example of the directory structure in the state, an application example in which a directory named “3DIM” is created directly under the root directory and files of 3D image data are stored under that directory is there.
- file name of the file of the three-dimensional image data and the file name of the two-dimensional image data are the same, but different file names may be used. Also, the fact that both files are related may be multiplexed as information in each file or one of the files.
- the file of the two-dimensional image data may be a thumbnail image instead of the main image as shown in FIG.
- the file extension should be .THM, not .JPG.
- the 3D image data file must be stored in the 2D image data storage location ("DC IM It may be recorded in the directory “100ABCDE” directly below.
- the present invention stores the file name of the image file and Z or the image file.
- the image to clarify the distinction between the three-dimensional display image data and the two-dimensional display image data can be determined by the directory to be used. Suitable for file creation devices and image file playback devices.
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- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN2004800095839A CN1774936B (zh) | 2003-04-17 | 2004-04-19 | 图像文件创建设备 |
EP04728257A EP1615454A4 (en) | 2003-04-17 | 2004-04-19 | IMAGE FILING DEVICE AND IMAGE FILE REPRODUCTION |
US10/553,350 US7715618B2 (en) | 2003-04-17 | 2004-04-19 | Image file creating apparatus and image file reproducing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-112851 | 2003-04-17 | ||
JP2003112851A JP4679804B2 (ja) | 2003-04-17 | 2003-04-17 | 画像ファイル作成装置 |
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WO2004093468A1 true WO2004093468A1 (ja) | 2004-10-28 |
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PCT/JP2004/005537 WO2004093468A1 (ja) | 2003-04-17 | 2004-04-19 | 画像ファイル作成装置及び画像ファイル再生装置 |
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US (1) | US7715618B2 (ja) |
EP (1) | EP1615454A4 (ja) |
JP (1) | JP4679804B2 (ja) |
KR (1) | KR100766891B1 (ja) |
CN (1) | CN1774936B (ja) |
WO (1) | WO2004093468A1 (ja) |
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- 2004-04-19 KR KR1020057019355A patent/KR100766891B1/ko not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
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CN1774936B (zh) | 2010-10-27 |
KR100766891B1 (ko) | 2007-10-15 |
EP1615454A4 (en) | 2008-06-04 |
US7715618B2 (en) | 2010-05-11 |
JP2004349732A (ja) | 2004-12-09 |
CN1774936A (zh) | 2006-05-17 |
JP4679804B2 (ja) | 2011-05-11 |
KR20050112528A (ko) | 2005-11-30 |
EP1615454A1 (en) | 2006-01-11 |
US20070171277A1 (en) | 2007-07-26 |
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