WO2006100736A1 - 動画像データ編集装置、動画像データ再生装置、動画像データ編集方法及び動画像データ再生方法 - Google Patents
動画像データ編集装置、動画像データ再生装置、動画像データ編集方法及び動画像データ再生方法 Download PDFInfo
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- WO2006100736A1 WO2006100736A1 PCT/JP2005/005013 JP2005005013W WO2006100736A1 WO 2006100736 A1 WO2006100736 A1 WO 2006100736A1 JP 2005005013 W JP2005005013 W JP 2005005013W WO 2006100736 A1 WO2006100736 A1 WO 2006100736A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/007—Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g. during top and bottom lines in a HDTV letter-box system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
Definitions
- Moving image data editing apparatus moving image data reproducing apparatus, moving image data editing method, and moving image data reproducing method
- the present invention generally relates to a technique for applying a special viewing effect to encoded moving image data, and a technique for validating such a special viewing effect during reproduction.
- the present invention relates to a technology for applying special viewing effects to moving image data that conforms to the coding standard MPEG (Moving Picture coding Experts Group), and a technology for enabling special viewing effects during playback.
- MPEG Motion Picture coding Experts Group
- moving image concealment processing is used when, for example, medical diagnostic images (diagnostic videos obtained by ultrasonic diagnosis or endoscope) and surgical images are used for medical education. To be done.
- FIG. 19 is a diagram showing a diagnostic moving image by actual ultrasonic diagnosis.
- the actual diagnostic moving image 81 personal information for identifying the patient is recorded together as shown in the range 82.
- a doctor can confirm that a medical moving image that is a basis of diagnosis is an image of an actual patient by visually observing powerful personal information.
- Patent Document 1 Japanese Patent Application Laid-Open No. 64-36460
- Patent Document 2 Japanese Patent No. 3552945 Disclosure of the invention
- the mask processing is performed to change the presence or absence of the mask processing according to the difference in the reproduction-side conditions, such as the medical treatment by the doctor and the viewing for the purpose of medical education. It was not possible to change the playback mode of one moving image data according to the difference in conditions on the playback side, except that two moving image data with and without were prepared.
- the present invention provides a moving image data editing apparatus and moving image data capable of performing mask processing on a part of encoded moving image data with simple means and effort.
- the purpose is to provide an editing method.
- the present invention provides a moving image data reproducing apparatus and a moving image data reproducing method for reproducing an original moving image before mask processing from moving image data that has been subjected to mask processing in this manner.
- the purpose of this is to change the playback mode compared to a normal regenerator that reproduces the video as it is.
- the moving image data editing apparatus and moving image data editing method provides moving image data in which each frame is encoded for each macroblock partitioned in advance.
- the macroblock corresponding to the area to be masked is extracted from the data stream of the input moving image data, and is extracted from the data stream.
- the fixed pattern data encoded in advance is inserted at the position of the macroblock, and the extracted macroblock is inserted into the data stream as user data.
- the moving image data reproduction apparatus and moving image data reproduction method is a moving image in which each frame is encoded for each macroblock divided in advance and a mask process is applied to a part of the image.
- the macroblock inserted as user data is extracted from the data stream of the input moving image data, and the macroblock corresponding to the masked range in the data stream is extracted. Instead of the data at the position, the extracted macroblock is inserted to restore the moving image before mask processing.
- FIG. 1 is a basic configuration diagram of a moving image data editing apparatus according to the present invention.
- FIG. 2A is an explanatory diagram of moving image data to be masked by the moving image data editing apparatus according to the present invention, and is an explanatory diagram of a plurality of frames constituting the moving image data.
- FIG. 2B is an explanatory diagram of a pixel block constituting each frame of FIG. 2A.
- FIG. 3 is an explanatory diagram of a data stream configuration of the moving image data in FIG. 2.
- FIG. 4A is a diagram showing an original moving image before mask processing is performed.
- FIG. 4B is a diagram showing a moving image after mask processing.
- FIG. 5 is an explanatory diagram of mask processing by the moving image data editing apparatus of FIG. 1.
- FIG. 6 is a basic configuration diagram of a moving image data reproducing apparatus according to the present invention.
- FIG. 7 is an explanatory diagram of mask invalidation processing by the moving image data reproduction device of FIG.
- FIG. 8 is an overall configuration diagram of an embodiment of a moving image data editing apparatus according to the present invention.
- FIG. 9A is an explanatory diagram of a plurality of pictures constituting MPEG moving image data.
- FIG. 9B is an explanatory diagram of macroblocks constituting each picture of FIG. 9A.
- FIG. 10 is an explanatory diagram of a data stream configuration of MPEG moving image data.
- FIG. 11A is a diagram showing an original ultrasonic diagnostic moving image before performing mask processing.
- FIG. 11B is a diagram showing an ultrasonic diagnostic moving image after mask processing.
- FIG. 12 is a configuration diagram of the first embodiment of the analysis Z editing unit shown in FIG. 8.
- FIG. 13 is an explanatory diagram of a first example of mask processing by the moving image data editing apparatus of FIG.
- FIG. 14 is an overall configuration diagram of an embodiment of a moving image data reproducing apparatus according to the present invention.
- FIG. 15 is an explanatory diagram of a first example of mask invalidation processing by the moving image data reproducing device of FIG.
- FIG. 16 is an explanatory diagram of a second example of mask processing by the moving image data editing apparatus of FIG.
- FIG. 17 is an explanatory diagram of a second example of mask invalidation processing by the moving image data reproduction device of FIG.
- FIG. 18 is a configuration diagram of the second embodiment of the analysis Z editing unit shown in FIG. 8.
- FIG. 19 is a diagram showing a diagnostic moving image by actual ultrasonic diagnosis.
- FIG. 1 is a basic configuration diagram of a moving image data editing apparatus according to the present invention.
- FIG. 2 is an explanatory diagram of moving image data to be masked by the moving image data editing apparatus 1 shown in FIG. 1, and
- FIG. 2A is an explanatory diagram of a plurality of frames constituting the moving image data.
- FIG. 2B is an explanatory diagram of a pixel block constituting each frame of FIG. 2A.
- FIG. 3 is an explanatory diagram of a data stream configuration of the moving image data of FIG.
- moving image data is composed of a plurality of images (frames) F1—F6 ′.
- Each frame F1-F6 ... consists of a number of pixels corresponding to the resolution specified in the image format of the moving image!
- the moving image data is a digital signal
- the moving image data is generally encoded and compressed in order to reduce the amount of data.
- the encoding of the moving image data is performed in accordance with the moving image code standard that the moving image data conforms to.
- the moving image data editing apparatus 1 is a moving image that complies with a moving image code standard in which each frame constituting the moving image data is encoded for each pixel block defined in advance.
- Target image data For example, in the example shown in FIG. 2B, each frame is encoded in units of pixel blocks BL1-BL4 ′ ′′ each having a size of M ⁇ N pixels.
- Such a data stream configuration of video data in accordance with the video code standard can be generally shown as having the configuration shown in FIG. As shown in the upper part of Fig. 3.
- the data stream has a configuration including a plurality of frames Fl—F5 ′ ”that are sequentially displayed over time.
- Each frame F1, F5,... Has a plurality of frames constituting the frame as shown in the lower part of FIG.
- Pixel blocks BL1 to BL5 '" are sequentially arranged in the order corresponding to the respective arrangement positions in the frame.
- the data stream further has a user data area for inserting user data at least in frame units.
- user data means any information that can be inserted into moving image data in addition to the original moving image information by the creator or editor who creates moving image data.
- the moving image data editing device 1 can edit moving image data according to the general moving image coding standard described above and perform mask processing on a part of the image.
- the moving image data editing apparatus 1 includes, as shown in FIG. 1, a pixel block extracting unit 11 that extracts a pixel block corresponding to a masking range from a data stream of input moving image data, A fixed pattern insertion unit 12 for inserting pre-encoded fixed pattern data at the original position in the data stream where the extracted pixel block is located, and the extracted pixel block, And a pixel block insertion unit 13 that is inserted into the user area of the data stream as user data.
- FIG. 4A is a diagram showing an original moving image before mask processing
- FIG. 4B is a diagram showing a moving image after mask processing.
- a region 72 surrounded by a broken line in the moving image 71 shown in FIG. 4A is covered with a fixed pattern (for example, a single color) and masked.
- the moving image 71 shown in FIG. 4A is edited like the masked moving image 71 shown in FIG. 4B.
- the pixel block extraction unit 11 shown in FIG. 1 detects pixel blocks BL2 and BL4 existing within the mask area 72 from the input data stream of the original moving image data. Take out.
- the fixed pattern insertion unit 12 shown in FIG. 1 extracts the pixel blocks BL2 and BL4.
- the fixed pattern data 73 is inserted into each of the original positions where the pixel blocks BL2 and BL4 are located! / In the obtained data stream.
- the fixed pattern data 73 may be obtained by intra-frame encoding of a fixed pattern having the same size as the pixel block, or by generating such encoded data by simulation and acquiring it in advance. Is possible.
- the pixel block insertion unit 13 inserts the extracted pixel blocks BL2 and BL4 into the user area of the data stream as user data.
- the moving image data editing apparatus 1 performs the mask process without decoding and re-encoding the moving image data, there is a problem of image quality degradation caused by the re-encoding of the moving image with less processing time. Nor.
- FIG. 6 is a basic configuration diagram of a moving image data reproducing apparatus according to the present invention.
- the moving image data reproduction device 2 is used to input the masked moving image data edited by the moving image data editing device 1 and restore and reproduce the moving image before the mask processing.
- the moving image data reproducing device 2 includes a pixel block extracting unit 21 that extracts an original pixel block inserted as user data from a data stream of input moving image data, and a mask area in the data stream.
- a moving image restoration means 22 for inserting the extracted original pixel block and restoring the moving image before the mask processing is provided.
- the pixel block extracting unit 21 shown in FIG. 6 is originally located in the mask area of the input moving image data, and converts the original pixel blocks BL2 and BL4 into each frame of the data stream. Extract user data area force.
- the moving image restoration means 22 shown in FIG. Figure 7 shows the extracted original pixel blocks BL2 and BL4.
- the moving image before the mask processing by the moving image data editing apparatus 1 is restored.
- the moving image data reproducing apparatus can be used only for a specific facility, person, place, etc. (a medical site where the personal information part does not need to be masked according to the above-described diagnostic moving image). If the reproduction of image data is permitted, the mask processing is invalidated only when the image data is reproduced by these specific facilities and humans. In the case of playback, the mask process remains effective. In this way, it is possible to change the playback mode of one moving image data according to the difference in playback conditions.
- FIG. 8 is an overall configuration diagram of an embodiment of a moving image data editing apparatus according to the present invention.
- the moving image data editing apparatus 1 relates to a mask process while an operator views this moving image by inputting and displaying the decoded moving image data by a decoder 14 that decodes the input encoded moving image original data.
- a mask information generating unit 15 which is an insertion position information generating unit according to the present invention, which is capable of issuing an instruction, and generates mask information 62 relating to mask processing based on the parenthesis instruction.
- the input encoded video source data is analyzed, and the masked video source data is subjected to mask processing based on the mask information 62 generated by the mask information generation unit 15 to obtain masked video data.
- an analysis Z editing unit 16 that outputs 61.
- the encoded moving image original data input to the moving image data editing device 1 is, for example, an analog video signal picked up by a video power camera 51 and input to a generally available encoder 52, and is encoded in a digital format.
- the moving image data obtained by encoding the converted moving image data may be used.
- Such encoded video source data is stored in a video source data storage unit 53 that can be realized by a storage device such as a hard disk drive device or a memory device, or a removable recording medium such as a CD-ROM or DVD disk. Store this video source data storage unit 53 is input to the video data editing device 1.
- the moving image data editing apparatus 1 performs mask processing on encoded moving image data compliant with the MPEG format, which is one of moving image encoding standards, will be described.
- FIG. 9A is an explanatory diagram of a plurality of pictures constituting MPEG moving image data.
- MPEG video data is composed of a plurality of frames II, B1—B3, Pl, B4— ⁇ 6, ⁇ 2,.
- Each picture is divided into three types according to its code type: I picture II, 12, which is the intra-frame code screen, and forward prediction code screen, ⁇ picture ⁇ 1, ⁇ 2.
- each picture that is composed of moving image data and is sequentially displayed over time is referred to as a “picture”.
- This picture is the present invention described with reference to FIG. 1 and FIG. It is used in the same meaning as “frame” in the video data structure related to
- each picture is divided into 16 x 16 pixel sections as shown in Fig. 9B.
- Block MB1 — ⁇ 4 ⁇ is configured, and block matching is performed using this macroblock as a unit to perform prediction code input.
- the code of the DC component of the DCT coefficient (DC component) is coded in units of the macroblock. Is done
- FIG. 10 is an explanatory diagram of a data stream configuration of MPEG moving image data.
- the data stream configuration of MPEG moving image data includes a sequence layer, a GOP layer, a picture layer, a slice layer, and a macroblock layer.
- the sequence layer is a layer that contains the encoded signal of one entire video program, and starts with a sequence header and includes one or more GOPs (Group of Picture).
- the GOP layer is a group of pictures that can be used as a point for performing random access from MPEG data by being composed of I pictures and / or P pictures and / or B pictures. For this reason, the first picture of each GOP is always configured with an I picture inserted. At the beginning of each GOP, the time is synchronized with the sound when restoring the image. A GOP header containing the time stamp information is inserted.
- the picture layer corresponds to each screen of each moving image signal, and is composed of any one of I, P, and B pictures in principle.
- a picture header including information for identifying one of the I, P, and B pictures and information specifying the display order of each picture is inserted at the head of each picture.
- the picture layer contains one or more slices that indicate a horizontally long area in the screen. Further, a user data area for inserting user data can be inserted into each picture layer.
- the slice layer is configured to include one or more macroblocks. By configuring the screen with multiple slices, even if an error occurs in one slice layer, it is provided to enable error recovery in the next slice layer.
- slice information including information indicating quantization characteristics used in the slice is inserted at the head of the slice layer.
- the macro block layer is composed of a plurality of 8 ⁇ 8 pixel block powers constituting the macro block.
- the macroblock information inserted at the head of the macroblock layer includes, for example, information such as an encoding type indicating whether the macroblock is intra-frame encoded or motion compensation encoded.
- the mask information generation unit 15 displays the moving image data decoded by the decoder 14 to the operator, such as a display unit such as a CRT or a liquid crystal display, and the operator operates the moving image data.
- the operator such as a display unit such as a CRT or a liquid crystal display
- the flexible disk drive device and removable disk drive device that can be output in a format that can be distributed simultaneously with the masked moving image data 61 edited by the analysis Z editing unit 16 It may be realized.
- FIG. 11A is a diagram showing an original ultrasonic diagnostic moving image before performing mask processing
- FIG. 11B is a diagram showing an ultrasonic diagnostic moving image after mask processing.
- a case is assumed where, in the moving image 81 shown in FIG. 11A, a region 82 surrounded by a broken line is subjected to a masking process with a fixed pattern (for example, a single red color) and concealed. like this
- a fixed pattern for example, a single red color
- this moving image is displayed.
- 81 designates a mask area 82 to be masked.
- the operator may apply to the mask area 82 by inputting from the keyboard or by operating a GUI (graphical user interface) displayed on the display unit by an application operating on the mask information generation unit 15 with the mouse.
- the type of mask to be specified is indicated.
- the mask information generation unit 15 When the mask information generation unit 15 receives an instruction related to the mask processing as described above by the operator, the mask information generation unit 15 creates the mask information 62 based on these instructions.
- Table 1 shows a first example of mask information 62.
- the mask information generation unit 15 designates a macroblock corresponding to the position of the mask area 82 in the screen for each picture to be masked based on an instruction from the operator. To do.
- the 10th to 12th macroblocks from the top left of the screen to the right in the horizontal direction and the 40th to 41st macroblocks in the vertical direction are specified.
- the type of mask to be applied to the mask area 82 is instructed.
- an attribute value (“red- ⁇ ) indicating a mask type may be used as shown in the example of Table 1.
- FIG. 12 is a block diagram of the first embodiment of the analysis Z editing unit 16 shown in FIG. Analysis Z edit Based on the information on the position of the mask area 82 included in the mask information 62 generated by the mask information generating section 15 (in the example of Table 1, the macroblock designation information corresponding to the position of the mask area 82), A macroblock extraction unit 11 that extracts a macroblock corresponding to a range to be masked from the input data stream of the original data of the moving image, and the data stream in which the extracted macroblock is located Based on the information on the mask type included in the mask information 62, the fixed pattern insertion unit 12 for inserting the corresponding fixed pattern data and the extracted macro block into the data stream as user data at the original position. And a macroblock insertion unit 13 to be inserted into the user area.
- the analysis Z editing unit 16 further includes a fixed pattern storage unit 17 that stores fixed pattern data inserted by the fixed pattern insertion unit 12.
- Fixed pattern storage unit 17 stores fixed pattern data for each mask type, and analysis / editing unit 16 selects mask information 62 from a plurality of types of fixed pattern data stored in fixed pattern storage unit 17.
- the fixed pattern data to be inserted into the mask amount area 82 is selected according to the instruction indicating the type of the mask.
- the fixed pattern that is the basis of each fixed pattern data is image data that has the same size (that is, 16 X 16 pixels) as the macro block described above, and the fixed pattern data stored in the fixed pattern storage unit 17. Is code image data obtained by encoding these fixed patterns in the frame.
- the fixed pattern data 73 may be generated by actually encoding a fixed pattern in the frame, or may be generated in a simulated manner.
- the analysis Z editing unit 16 can be realized by a calculation means configured by a workstation, a personal computer, or the like. It may be realized by a software module that realizes the function, or may be realized by a dedicated hardware circuit.
- the macroblock extraction unit 11 shown in FIG. 12 is based on the mask information 62, and the range of the mask area 82 included in the slice layer of the input original moving image data stream.
- the position of the macro block (indicated as “MB” in FIG. 13) existing in the box is specified, and the macro blocks 93 and 95 at that position are taken out (see FIG. 13).
- the fixed pattern insertion unit 12 shown in FIG. 12 corresponds to the mask type specified in the mask information 62 out of a plurality of types of fixed pattern data stored in advance in the fixed pattern storage unit 17. Select the fixed pattern data 73 to be used. Then, the selected fixed pattern data 73 is inserted into each of the original positions where the macro blocks 93 and 95 were located in the slice layer of the data stream.
- the macroblock insertion unit 13 inserts the extracted macroblocks 93 and 95 as user data into a user area provided for each picture layer in the data stream, and masks the edited data stream. Output as completed moving image data 61.
- the mask information is created as in the first example shown in Table 1, in which picture user area the extracted macroblock as included in the second example of the mask information shown in Table 2 described later is included. Since the information specifying the force to be inserted is not included in the mask information, the macroblock insertion unit 13 inserts the macroblocks 93 and 95 into the user area of the picture itself from which these macroblocks have been extracted. At this time, in addition to the extracted macroblocks 93 and 95, position information indicating where these macroblocks are arranged in the image may be inserted into the user area.
- FIG. 14 is a basic configuration diagram of a moving image data reproducing apparatus according to the present invention.
- the moving image data reproduction device 2 is a masked moving image data edited by the moving image data editing device 1. 1 and mask information 62 are input, and the moving image before the mask processing is restored, reproduced, and displayed on the display unit 54.
- the moving image data reproducing device 2 extracts the original macroblock inserted as user data in the user area of each picture layer from the data stream of the input moving image data 61 based on the mask information 62. By inserting the extracted original macroblock in place of the fixed pattern data inserted at the position of the macroblock corresponding to the mask area of each picture in the data stream, And moving image restoration means 22 for restoring the moving image before the mask processing.
- the macroblock extraction unit 21 shown in FIG. 14 performs mask processing on any picture of the input moving image data 61 based on the mask information 62. Judgment is made.
- the mask area 82 is specified for each of the pictures subjected to the mask process, and the original macroblocks 93 and 95 located in the mask area 82 are assigned to the user of each picture. Extract from the data area (see Figure 15).
- the moving image restoration shown in FIG. 14 is performed.
- the means 22 restores the moving image before the mask processing by inserting the extracted original macro blocks 93 and 95 in place of the fixed pattern data 73.
- the moving image data editing device 1 inserts position information indicating where the macro blocks 93 and 95 are arranged in the image into the user data area of each picture,
- the moving image data reproduction device 2 can restore the moving image before the mask processing without inputting the mask information 62.
- the macroblock extraction unit 21 of the moving image data reproduction device 2 first determines whether or not the macroblock information is included in the user data area for each picture inserted in the input moving image data 61. to decide. If the macro block information is included, the position information of the macro block inserted in the user data area is extracted. The mask region 82 is specified. That is, it is specified which position in the moving image data 61 is the insertion position where the extracted macroblocks 93 and 95 are to be returned. Then, the moving image restoration means 22 inserts the extracted original macroblocks 93 and 95 into the original position in the moving image data based on this position information.
- the mask information generating unit 15 outputs the mask information 62 in a format that can be distributed simultaneously with the masked moving image data 61, the mask information is not easily deciphered. You can also encrypt it and output it!
- the mask information generation unit 15 selects a picture to be inserted into a macroblock corresponding to the position of each mask area 82 of the picture to be masked. Then, create mask information 62 as shown in Table 2 below. A second example of the mask information 62 is shown in Table 2.
- the second example of the mask information 62 includes information regarding the location where the macroblock corresponding to the position of the mask region 82 is accommodated.
- Table 2 for example,
- the top left force of picture II specified in the first row is the 10th macroblock in the horizontal direction and the 40th macroblock in the vertical direction is the area of the first macroblock in the user data area included in the picture layer of picture P2.
- the top left edge of picture II specified in the second row is inserted in the second row.
- the 11th macroblock in the horizontal direction and the 40th macroblock in the vertical direction are the 3rd user data area included in the picture layer of picture P1.
- Table 2 shows the power of an example of inserting each macroblock taken out from one picture mask area 82 as user data of a different picture.
- the macroblock extracted from the mask area 82 may be inserted as user data of one picture different from the extracted picture.
- a mask process based on the second example of the mask information 62 will be described with reference to FIG.
- the macroblock extraction unit 11 shown in FIG. 12 exists within the range of the mask area 82 included in the picture 91 included in the data stream of the original moving image data input based on the mask information 62. Locate the macro block (denoted “MB” in Figure 16) Then, the macroblocks 93 and 95 at the positions are taken out (see FIG. 16).
- the fixed pattern insertion unit 12 shown in FIG. 12 inserts the selected fixed pattern data 73 into each of the original positions where the macro blocks 93 and 95 were located in the picture 91 of the data stream.
- the macroblock insertion unit 13 inserts the extracted macroblocks 93 and 95 into the user data area of the picture 97 different from the picture 91 specified as the macroblock accommodation destination in the mask information 62. .
- the macro block is inserted according to the position or order.
- the edited data stream is output as the masked moving image data 61.
- the macroblock extraction unit 21 shown in FIG. 14 determines, based on the mask information 62, which picture of the input moving image data 61 has been subjected to the mask processing (here, the picture 91 is displayed). (It is determined that the mask processing has been performed.) Then, based on the mask information 62, the mask area 82 of the picture 91 on which the mask process is performed is specified.
- the macroblock extraction unit 21 uses the original macroblocks 93 and 95 located in the mask area 82 as the user data of the picture 97 designated as the mask block accommodation destination in the mask information 62. Extract from the region (see Figure 17).
- the moving image restoration means 22 shown in FIG. 14 inserts the extracted original macroblocks 93 and 95 in place of the fixed pattern data 73 inserted in the picture 91, so that the pre-mask processing is performed. Restore video.
- the moving image data may include a portion where the image moves and a portion where the image is almost static in one screen, for example, medical diagnostic moving image data shown in FIG. 11A.
- medical diagnostic moving image data shown in FIG. 11A.
- an area 82 indicated by a dotted line in the figure is a completely stationary part that displays personal identification information and the like, while the other areas indicate the operation of the organ for diagnosis. This is the video part that represents.
- a static part in this case, a personal identification information part
- the I picture which is an intra-frame code key picture
- the P picture and B picture which are intra-frame coded pictures (motion compensation code key pictures)
- Little information is included.
- the moving image data editing apparatus 1 may perform the masking process only on the intra-frame code / picture I picture.
- the macroblock extraction unit 11 of the moving image data editing apparatus 1 extracts the macroblock corresponding to the mask area 82 from only the intraframe code picture I picture. Then, the fixed pattern insertion unit 12 inserts fixed pattern data at each of the original positions where the macroblock of the I picture in the data stream is located.
- the macroblock insertion unit 13 inserts the extracted macroblock into the user data area of the picture in the data stream.
- the moving image data reproducing apparatus 2 may restore the original image by using only the intra-frame code / picture I picture.
- the macroblock extraction unit 21 of the moving image data reproduction device 2 determines whether any of the I pictures has been masked. Then, a mask area 82 is specified for each I picture that has been subjected to mask processing.
- the macroblock extracting unit 21 extracts the macroblock located in the mask area 82 from the user data area of the picture in the data stream.
- the moving image restoration means 22 may restore the moving image before the mask processing by inserting the extracted original macroblock in place of the fixed pattern data inserted in the I picture. .
- the original image signal in the mask region 82 may be used for the motion compensation code of the surrounding macroblock.
- the moving image data reproducing apparatus 1 replaces the macro block corresponding to the mask area 82 in the moving image data with the fixed pattern data and leaves the surrounding macro blocks as they are, The macro block image may be disturbed.
- the moving image data reproducing device 1 corresponds to the mask area 82 in the moving image data.
- a macroblock to be replaced is replaced with fixed pattern data, it is desirable to perform an intraframe code around the area where the image signal of the macroblock is used as a motion compensation code.
- the analysis Z editing unit 16 corresponding to the operation of the moving image data reproducing apparatus 1 will be described with reference to FIG.
- FIG. 18 is a configuration diagram of the second embodiment of the analysis Z editing unit 16 shown in FIG.
- the analysis Z editing unit 16 includes a surrounding block re-encoding unit 18 that performs intra-frame coding of macro blocks around the macro block corresponding to the mask region 82.
- the surrounding block re-encoding unit 18 uses the macroblock corresponding to the mask area 82 among the input moving image data as the motion compensation code key. After the macroblock is extracted, this macroblock is decoded, and then the intraframe code is input in units of macroblocks and inserted again at the original position of the moving image data.
- the surrounding block re-encoding unit 18 may use a macroblock corresponding to the mask area 82 for the motion compensation code ⁇ , and the surrounding macroblocks corresponding to the mask area 82 may be used.
- Are extracted for example, all the macroblocks within the motion compensation range around the mask area 82 are extracted), and after decoding these macroblocks, the intraframe coding is performed in units of macroblocks, and the moving image is again recorded. Insert at the original position of the data.
- the surrounding block re-encoding unit 18 performs intra-frame coding on the surrounding macro blocks of the mask area 82, so that the macro block corresponding to the mask area 82 in the moving image data is fixed pattern. Even if the data is replaced, the surrounding macroblock image is prevented from being disturbed.
- the moving image data editing apparatus, moving image data reproducing apparatus, moving image data editing method, and moving image data reproducing method according to the present invention described with reference to the preferred embodiments are encoded. It can be widely used for technologies that apply special viewing effects to moving image data, and technologies that enable such special viewing effects during playback.
- the present invention relates to a technique for applying special viewing effects to moving image data compliant with MPEG, which is an encoding standard for moving image data, and for enabling special viewing effects during playback and disabling Z.
- Such moving image data editing device As a specific application example of the law and moving image data reproduction method, in addition to the secondary use of the medical video described above for medical education, etc., it is specified in fields such as digital broadcasting services. This is used when a certain viewer is masked and should be able to play a movie, and a general viewer can only play a limited movie that has been masked. It is possible.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Television Signal Processing For Recording (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Studio Circuits (AREA)
Abstract
Description
Claims
Priority Applications (3)
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JP2007509090A JP4312246B2 (ja) | 2005-03-18 | 2005-03-18 | 動画像データ編集装置、動画像データ再生装置、動画像データ編集方法及び動画像データ再生方法 |
PCT/JP2005/005013 WO2006100736A1 (ja) | 2005-03-18 | 2005-03-18 | 動画像データ編集装置、動画像データ再生装置、動画像データ編集方法及び動画像データ再生方法 |
US11/896,905 US8532468B2 (en) | 2005-03-18 | 2007-09-06 | Moving image data editing apparatus, moving image data reproducing apparatus, moving image data editing method, and moving image data reproducing method |
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PCT/JP2005/005013 WO2006100736A1 (ja) | 2005-03-18 | 2005-03-18 | 動画像データ編集装置、動画像データ再生装置、動画像データ編集方法及び動画像データ再生方法 |
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US11/896,905 Continuation US8532468B2 (en) | 2005-03-18 | 2007-09-06 | Moving image data editing apparatus, moving image data reproducing apparatus, moving image data editing method, and moving image data reproducing method |
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WO2006100736A1 true WO2006100736A1 (ja) | 2006-09-28 |
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PCT/JP2005/005013 WO2006100736A1 (ja) | 2005-03-18 | 2005-03-18 | 動画像データ編集装置、動画像データ再生装置、動画像データ編集方法及び動画像データ再生方法 |
Country Status (3)
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US (1) | US8532468B2 (ja) |
JP (1) | JP4312246B2 (ja) |
WO (1) | WO2006100736A1 (ja) |
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WO2009066677A1 (ja) * | 2007-11-22 | 2009-05-28 | Nec Corporation | 画像処理装置 |
JP2010232754A (ja) * | 2009-03-26 | 2010-10-14 | Sony Corp | データマスク装置およびマスクデータ復元システム |
KR101271461B1 (ko) | 2009-10-09 | 2013-06-05 | 한국전자통신연구원 | 감시영상의 프라이버시 정보 보호 장치 및 방법 |
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JP5688279B2 (ja) | 2010-12-08 | 2015-03-25 | ニュアンス コミュニケーションズ,インコーポレイテッド | 秘匿情報をフィルタリングする情報処理装置、方法およびプログラム |
WO2014034463A1 (ja) * | 2012-08-27 | 2014-03-06 | ソニー株式会社 | 送信装置、送信方法、受信装置および受信方法 |
DE102013226802A1 (de) * | 2013-12-20 | 2015-06-25 | Siemens Aktiengesellschaft | Schutz von Privatsphäre in einem Videostrom mittels einer redundanten Slice |
KR101641646B1 (ko) * | 2014-11-28 | 2016-07-21 | 전자부품연구원 | 동영상 마스킹 처리방법 및 장치 |
US9454675B2 (en) * | 2015-01-26 | 2016-09-27 | Idis Co., Ltd. | Apparatus and method for protecting personal information of recorded image, and computer-readable recording medium having computer program recorded therein |
KR102464575B1 (ko) * | 2016-09-20 | 2022-11-09 | 삼성전자주식회사 | 디스플레이 장치 및 그 입력 방법 |
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Also Published As
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US20080063378A1 (en) | 2008-03-13 |
JPWO2006100736A1 (ja) | 2008-08-28 |
JP4312246B2 (ja) | 2009-08-12 |
US8532468B2 (en) | 2013-09-10 |
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