JPH10145726A - Still image and sound reproducing device and its method - Google PatentsStill image and sound reproducing device and its method
- Publication number
- JPH10145726A JPH10145726A JP8302879A JP30287996A JPH10145726A JP H10145726 A JPH10145726 A JP H10145726A JP 8302879 A JP8302879 A JP 8302879A JP 30287996 A JP30287996 A JP 30287996A JP H10145726 A JPH10145726 A JP H10145726A
- Prior art keywords
- still image
- audio data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- 230000001276 controlling effects Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 methods Methods 0.000 description 13
- 230000000051 modifying Effects 0.000 description 5
When the narration button is pressed, the presence or absence of the narration A file and the narration B file is checked (steps ST10, ST11, ST15). If there is no narration file, no sound is reproduced and a message to that effect is displayed. If there is one narration file, that narration is automatically played. Only when there are two narration files, the narration file is selected and displayed (step ST12), and the selected narration file is reproduced.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic still camera for recording / reproducing a still image digital video signal using a recording medium such as a magneto-optical disk, and a reproducing apparatus and a reproducing apparatus suitable for an electronic still album. About the method.
2. Description of the Related Art A subject image is picked up by a CCD image pickup device, a video signal based on the picked-up image signal is digitized, compressed by, for example, JPEG (Joint Photographic Experts Group) type image compression, and recorded on a recording medium. An electronic still camera of a digital recording system has been proposed. The JPEG method uses DCT (Discrete Cosine Transf
orm) and the variable-length code to compress the still image data.
It can be compressed to / 8 to 1/100.
As a recording medium used in such a digital recording type electronic still camera, the present applicant has proposed using a magneto-optical disk having a diameter of 64 mm housed in a cartridge. An electronic still camera of the digital recording system using such a magneto-optical disk is one of the following.
In addition to being able to record a large number of still image data on a single disc, since it is digital recording, the image quality does not deteriorate,
Editing is easy. Still image data can be copied on the screen of another application on a computer, and is expected to be widely used in the future.
An electronic still album can be realized by converting a photograph into a digital still image signal by a scanner and recording the digital still image signal on a magneto-optical disk. In the case of these electronic still cameras and electronic albums, it is also possible to store not only the still image data but also the situation at the time of shooting and the commentary of the photograph as audio data. By providing a plurality of types of audio data as the audio data, effective audio reproduction can be performed when reproducing a still image.
Generally, the user
Since it is not possible to know the presence or absence of audio data corresponding to the still image being reproduced, or the number of audio data, even if it is possible to have a plurality of audio data corresponding to each still image data, the advantage is sufficient. Difficult to demonstrate.
Accordingly, it is an object of the present invention to provide a still image and a still image capable of effectively reproducing audio data when it is possible to have a plurality of audio data corresponding to one still image. An object of the present invention is to provide an audio reproducing device and a reproducing method.
SUMMARY OF THE INVENTION The present invention relates to a reproducing apparatus capable of displaying a still image and reproducing a sound together with the still image, wherein a plurality of data are associated with the still image data and the still image data. A storage unit that stores audio data that can be held, management data for managing still image data and audio data, and reads predetermined data based on the management data; Image display means for displaying the read still image data, sound reproduction means for reproducing the sound data read from the storage means, and the presence or absence of the still image data to be displayed and the accompanying sound data are checked. When there is data, it is possible to select audio data, the selected audio data is reproduced by audio means, and when there is single audio data, a single audio A reproducing apparatus characterized by comprising a control means for controlling to reproduce the automatic voice means over data.
According to the present invention, in a reproducing method capable of displaying a still image and reproducing a sound together with the still image, it is possible to have a plurality of data in association with the still image data and the still image data. Reading predetermined data based on the management data from the storage medium storing the read audio data and the management data for managing the still image data and the audio data, and displaying the read still image data A step of reproducing the read audio data; a step of checking the presence / absence of audio data accompanying the displayed still image data; and a step of selecting audio data when there is a plurality of audio data as a result of the check. And reproducing the selected audio data, and if there is a single audio data as a result of the check, a single audio data A reproduction method characterized by comprising a step of automatically playing the data.
According to the present invention, each still image data can have a plurality of audio data. When playing back the selected still image, only when there are multiple audio data,
The voice data is selected and displayed. If there is only one audio data, the audio data is automatically reproduced. Therefore, the user can reproduce the sound by a simple operation without knowing the presence or absence or the number of the sound data accompanying the still image data to be reproduced.
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an external configuration of a digital electronic still camera to which the present invention is applied. FIG. 1A shows a configuration of a front surface thereof, and FIG. 1B shows a configuration of a rear surface thereof. This electronic still camera compresses a digital still image video signal by the JPEG method and
(Mini disk) is recorded on the same magneto-optical disk.
1A and 1B, reference numeral 1 denotes an electronic still camera main body. A lens 2 is attached to a front surface 1A of the electronic still camera body 1.
The subject image light is taken in through the lens 2. A microphone 11 is provided on the front surface 1A of the electronic still camera body 1. With this microphone 11,
External sound is picked up.
A liquid crystal display 3 is mounted on the back 1B of the electronic still camera 1. On the liquid crystal display 3, a screen being photographed is displayed. The liquid crystal display 3 can be used as a finder. A reproduction screen is displayed on the liquid crystal display 3.
On the upper surface 1C of the electronic still camera body 1,
The shutter 4 is attached, and various switches 5 are attached. A video output terminal 6 and audio output terminals 10A and 10B are attached to a side surface 1D of the electronic still camera body 1. The side 1E of the electronic still camera body 1 is provided with a disc insertion slot 8. As shown in FIG. 1C, a cartridge 9 containing a magneto-optical disk 51 having a diameter of 64 mm is mounted in the disk insertion slot 8. The cartridge 9 may be the same as a music MD (mini-disc).
When taking a picture with the electronic still camera main body 1, the lens 2 is turned to the subject image. The image captured via the lens 2 is photoelectrically converted by the CCD image pickup device 22 (FIG. 3) in the electronic still camera body 1 and captured into an image memory (video RAM) 31 as described later in detail. Then, this image is displayed on the liquid crystal display 3
Will be displayed. When the shutter 4 is pressed, a still image based on the image captured via the lens 2 is recorded on the magnetic disk 51 in the cartridge 9.
A still image recorded on the magneto-optical disk 51 can be reproduced on the liquid crystal display 3. If the video output terminal 6 of the electronic still camera body 1 is connected to the video input terminal of the television receiver, a still image recorded on the magneto-optical disk 5 is reproduced on the screen of the television receiver. be able to.
On the liquid crystal display 3, a screen to be photographed is displayed, and as shown in FIG. 2, characters 102 indicating an operation state, a photographing place, a date, etc., a display frame, a decorative pattern 101, etc. Can be displayed. The characters indicating the operation state, the shooting location, the date, etc., the display frame, the decoration pattern, and the like can be recorded on the magneto-optical disk 51 together with the video screen by operating the key input 29.
Still images recorded on the magneto-optical disk 51 can be reproduced by a personal computer.
The still image stored on the magneto-optical disk 51 can be edited on the personal computer using an image editing application program.
The sound collected by the microphone 11 can be recorded on the magneto-optical disk 51 in the cartridge 9. The reproduced audio signal from the magneto-optical disk 51 is output from audio output terminals 10A and 10B. Furthermore, 62 is a video input terminal,
The video signal input from this terminal 62 is
Can be captured and recorded on a magneto-optical disk. More specifically, a picture of a photograph is converted into a video signal by a scanner, and this video signal is input to an input terminal 6.
2 to create an electronic album.
FIG. 3 is a block diagram showing the configuration of one embodiment of the present invention. In FIG. 3, reference numeral 21 denotes a magneto-optical disk drive. A magneto-optical disk (or optical disk) 51 having a diameter of 64 mm mounted on the cartridge is mounted on the magneto-optical disk drive 21. A digital video signal or digital audio signal compressed by the JPEG system is recorded / reproduced on the magneto-optical disk 51.
Reference numeral 22 denotes a CCD image pickup device. The lens 2 is arranged on the front surface of the CCD image sensor 22. The subject image light that has passed through the lens 2 forms an image on the light receiving surface of the CCD image sensor 22. The subject image light is photoelectrically converted by the CCD image sensor 22.
Reference numeral 23 denotes a CPU. CPU 23
An electronic still such as a process for compressing a video signal captured by the CD image pickup device 22 and recording it on the magneto-optical disk 51 and a process for expanding and reproducing a signal reproduced from the magneto-optical disk 51. The recording / reproducing process of the entire camera body 1 is performed. From this CPU 23, the CP
A U bus 24 is derived. The CPU bus 24 has R
The OM 25, the RAM 26, the image compression / expansion circuit 27, the memory controller 28, the input key 29, the audio compression / expansion circuit 41, and the DRAM 42 are connected, and the magneto-optical disk drive 21 is connected via the interface 30. The input key 29 includes a key for the shutter 4, and the key input 29 includes a pointing device such as a mouse.
The magneto-optical disk drive 21 to which the magneto-optical disk 51 is mounted is configured as follows.
The magneto-optical disk 51 is rotated by a spindle motor 52. An optical pickup 53 and a magnetic head 54 are provided for the magneto-optical disk 51. Optical pickup 53 and magnetic head 54
Is movable in the radial direction of the disk by a thread mechanism 56.
The servo circuit 55 controls the two-axis device of the optical pickup 53 based on the focus and tracking tracking error signals from the RF circuit 69, and performs focus and tracking control.
The control of the thread mechanism 56 is performed. Further, the spindle motor 52 is controlled by the servo circuit 55.
The recording data captured via the interface 30 is encoded by the encoder 57 during recording. The output of the encoder 57 is supplied to the magnetic head 54 via the driver 58. Then, the laser beam from the optical pickup 53 is applied to the magneto-optical disk 5.
1 and a modulated magnetic field from the magnetic head 54 is applied to the magnetic disk 54.
At the time of reproduction, a laser beam is emitted from the optical pickup 53 to the magneto-optical disk 51. This return light is supplied to the RF circuit 59. From the output of the RF circuit 59, a reproduced signal is obtained. This reproduced signal is supplied to the decoder 60. The output of the decoder 60 is supplied to the interface 30.
In this magneto-optical disk 51, an address wobbles a groove for guiding a track.
The information is recorded by modulating the wobbling method by an address. This address is detected by the address decoder 61.
Next, the operation at the time of recording a still image in one embodiment of the present invention will be described. At the time of recording a still image, the subject image light passing through the lens 2 is formed on the light receiving surface of the CCD image sensor 22. The subject image light is photoelectrically converted by the CCD image sensor 22. The output of the CCD image pickup device 21 is supplied to the A / D
It is supplied to the converter 33. A / D converter 33
Then, the imaging signal is digitized.
The output of the A / D converter 33 is supplied to a camera signal processing circuit 34. The camera signal processing circuit 34 converts the luminance signal Y and the color difference signal R-
A component video signal composed of Y and BY is formed. The camera signal processing circuit 34 performs camera signal processing such as gamma correction, aperture correction, and shading processing.
The video signal from the camera signal processing circuit 34 is taken into the image memory 31 under the control of the memory controller 28. Then, the video signal taken into the image memory 31 is supplied to the D / A converter 35 under the control of the memory controller 28. D / A
The converter 35 converts the digital video signal into an analog video signal.
The output of the D / A converter 35 is supplied to a video signal processing circuit 36. The output of the video signal processing circuit 36 is supplied to the liquid crystal display 3 via the liquid crystal driver 37. The liquid crystal display 3 can be used as a finder for photographing. In the video signal processing circuit 36, for example, a composite video signal of the NTSC system is formed, and this composite video signal is output from an analog video signal output terminal 38.
When the shutter 4 (FIG. 1) is pressed during recording, a video signal based on the screen at that time is taken into the image memory 31. The video signal fetched into the image memory 31 is subjected to image compression /
It is supplied to the expansion circuit 27. Image compression / decompression circuit 27
Is for compressing / expanding a digital video signal using the JPEG method. In the JPEG system, a digital video signal is subjected to DCT conversion and variable-length coding,
It compresses digital video signals.
The video signal from the image memory 39 is compressed by the image compression / decompression circuit 27 according to the JPEG system.
The compressed video signal is temporarily stored in the DRAM 42 via the CPU bus 24. And the DRAM 42
Is supplied to the encoder 57 of the magneto-optical disk drive 21 via the interface 30.
The encoder 57 performs an error correction encoding process, and further performs a modulation process. The output of the encoder 57 is supplied to the magnetic head 54 via the driver 58. A laser beam is emitted from the optical pickup 53, and a magnetic field modulated by the output of the encoder 57 is applied to the magnetic head 54. This allows
A compressed video signal is recorded on the magneto-optical disk 51.
At the time of recording, the video signal stored in the image memory 31 is supplied to a D / A converter 35. The output of the D / A converter 35 is supplied to a video signal processing circuit 36. The output of the video signal processing circuit 36 is supplied to the liquid crystal display 3 via the liquid crystal driver 37. As a result, the image being captured is displayed on the liquid crystal display 3.
As will be described later, the image memory 31 has an area for pattern data and an area for character data in addition to areas for luminance signal data and chroma signal data. The pattern data and the character data are assigned to the pattern data area and the character data area. The pattern data and the character data are combined with the luminance signal data and the chroma signal data using a microprogram. As described above, the video data in which the pattern data and the character data are combined can be displayed on the liquid crystal display 3, and the video data in which the pattern data and the character data are combined can be recorded on the magneto-optical disk 51. is there.
Next, the operation at the time of reproducing a still image will be described. At the time of still image reproduction, an image to be reproduced is designated by key input 29. The optical pickup 53 is moved to the address where the designated image is recorded, and the compressed video signal of the designated image is reproduced from the magneto-optical disk 51 by the optical pickup 53. This playback signal is
The signal is supplied to the decoder 60 via the RF amplifier 59. In the decoder 60, processes such as data demodulation and error correction are performed.
The output of the decoder 60 is the interface 3
0, temporarily stored in the DRAM 42 via the CPU bus 24. Then, the data from the DRAM 42 is supplied to the image compression / decompression circuit 27. Image compression / decompression circuit 2
At 7, the video signal compressed by the JPEG method is expanded. The expanded video signal is stored in the image memory 31 under the control of the memory controller 28.
The video signal stored in the image memory 31 is supplied to a D / A converter 35. The output of the D / A converter 35 is supplied to a video signal processing circuit 36. The output of the video signal processing circuit 36 is a liquid crystal driver 37
Is supplied to the liquid crystal display 3 via the.
The video signal processing circuit 36 forms a composite video signal of, for example, the NTSC system, and the composite video signal is output from an analog video signal output terminal 38.
Up to this point, processing of a video signal captured by the CCD image pickup device 22 through the lens 2 has been described, but the video signal can also be input from the video input terminal 62. The key input 29 includes an image input selection key.
Is selected, the video signal input from the video input terminal 62 is reproduced on the liquid crystal display 3. Then, when the image to be captured is displayed, the input key 2
9 is operated, a still image is taken into the frame memory 63. Frame memory 63
Is sent to the video signal input processing circuit 64, where the camera signal processing circuit 34
A signal similar to the output from is generated, and this signal is supplied to the memory controller 28. Subsequent processing is performed in the same manner as the imaging signal of the CCD imaging device 22.
In one embodiment of the present invention, audio data can be recorded / reproduced in addition to still image data. When recording audio data, an audio signal is supplied to the input terminal 45. This audio signal is supplied to the A / D converter 43. This audio signal is digitized by the A / D converter 43. The output of the A / D converter 43 is supplied to the audio compression / expansion circuit 41. The audio data is compressed by the audio compression / expansion circuit 41.
The compressed audio data is temporarily stored in a DRAM
42. The audio data is transmitted to the magneto-optical disk drive 21 via the interface 30.
Is supplied to the encoder 57. And the encoder 5
7, an error correction encoding process is performed, and further, a modulation process is performed, and the compressed audio signal is recorded on the magneto-optical disk 51.
When reproducing audio data, compressed audio data is reproduced from the magneto-optical disk 51. The reproduced data is supplied to a decoder 60 via an RF amplifier 59.
And the output of the decoder 60 is
0 on the CPU bus 24. The compressed audio data is temporarily stored in the DRAM 42. Then, the compressed audio signal is supplied to the DRAM 42
Is supplied to the audio compression / decompression circuit 41. The audio signal is expanded by the audio compression / expansion circuit 41. This audio signal is supplied to the D / A converter 24. The output of the D / A converter 24 is output from the output terminal 46.
The compression method of the audio signal is the same as that of a normal MD.
Is the same as Therefore, a music MD can be mounted on the electronic still camera as the magneto-optical disk 51 and used as a music MD player.
In one embodiment of the present invention, as described above, at the time of recording, the liquid crystal display 3 displays the screen being photographed, and also displays characters indicating the operation state, the photographing place, the date, and the like. A frame, a decorative pattern, and the like can be displayed. The characters indicating the operation state, the photographing place, the date, etc., the display frame, the pattern for decoration, etc.
By the operation described above, data can be recorded on the magneto-optical disk 51. Note that these patterns and characters are stored in an area on the image memory 31 other than the luminance data and the chroma data of the captured video. Therefore, it is also possible to record only the original image on the magneto-optical disk 51 excluding these patterns and characters.
In one embodiment of the present invention, a captured image can be recorded by being enlarged, reduced, or deformed. As described above, the DRAM 42 is provided, and when recording / reproducing a video signal or an audio signal, the DRAM 42 is used as a buffer memory. The DRAM 42 can also be used when recording an image by enlarging, reducing, or deforming the image.
For example, when an image is recorded in an enlarged manner, the photographed video signal is stored in the image memory 31. The video signal of the image memory 31 is compressed by the image compression / decompression circuit 27 and is temporarily stored in the DRAM 42. Here, when the enlargement command is sent, the DRAM 42
Are accessed, and the data in the DRAM 42 is expanded by the image compression / expansion circuit 27 and stored in the image memory 31.
Since the compressed image data is once stored in the DRAM 42, if the enlargement command is sent, the DRA is not accessed without accessing the magneto-optical disk 51.
M42 may be accessed, and high-speed processing can be realized.
As described above, the patterns and characters on the screen are stored in the image memory 31 in an area different from the luminance data and the chroma data of the photographed video. This will be described in detail below.
As the image memory 31, as shown in FIG. 4, a 4 Mbyte video RAM is used. That is, this video RAM has 512 bits in the horizontal direction, 512 bits in the vertical direction, and 16 bits in the depth direction. Therefore, the capacity of the image memory 31 is 512 × 512 × 16 = 4, 194, 304 bits.
The image memory 31 is allocated as shown in FIG. In FIG. 5, Y is an area for luminance signal data, C is an area for chroma signal data, CG is an area for character data, PA1 to PA8 and PB1 to PB.
4 is an area of pattern data, CP is an area of a color palette, and R is a reserve.
The area Y of the luminance data is 32 in the horizontal direction.
The area is 0 bits, 480 bits in the vertical direction, and 16 bits in the depth direction.
That is, the number of pixels in one screen is 640 in the horizontal direction and 480 in the vertical direction. this is,
This corresponds to the number of effective pixels of one screen of the NTSC system. In this case, the number of samples in one screen is 640 × 480 = 307,200 pixels.
Assuming that the luminance signal is quantized by 8 bits, the capacity required for the luminance signal data is 640 × 480 × 8 = 2,457,600 bits as shown in FIG. 6A. Since a video RAM having a depth of 16 bits is used as the image memory 16, when this is allocated on a video RAM having a depth of 16 bits, the area required as the area Y of the luminance signal data is as shown in FIG. 6B. Then, an area of 320 in the horizontal direction and 480 in the vertical direction becomes 320 × 480 × 16 = 2,457,600 bits. In FIG. 3, an area consisting of (320 × 480) is assigned as an area Y of luminance signal data.
The area C of the chroma data is 1 in the horizontal direction.
60 bits, 480 bits vertically, 16 depths
Has been a bit.
That is, the chroma signals C R and C B have an information amount of １ ／ of the luminance signal data. Therefore, space required for the chroma signal data as the chroma signal C R, (640 × 480 × 8) / 4 = 614,400 as bit chroma signal C R, (640 × 480 × 8) / 4 = 614,400 Bits, which is 1,228,800 bits in total.
A 16-bit deep video RAM
When allocated above, the area required as the area C of the chroma data is 160 areas in the horizontal direction and 480 areas in the vertical direction, as shown in FIG. 7, 160 × 480 × 16 = 1, 228, 800 bits. In FIG. 4, this (160 × 480) area is allocated as an area C of chroma signal data.
When the area Y of the luminance signal data is combined with the area C of the chroma signal data, (480 × 480)
Area. On the other hand, the capacity of the video RAM is (512 × 512). This leaves 32 L-shaped areas in the horizontal direction and 32 in the vertical direction.
The L-shaped upper surplus area is used as areas PA1 to PA8 and PB1 to PB4 of pattern data and an area CG of character data.
The character data area CG is an area of 32 bits in the horizontal direction, 256 bits in the vertical direction, and 16 bits in the depth direction.
That is, one screen for character display has 512 pixels in the horizontal direction and 480 pixels in the vertical direction as shown in FIG. 8A. In character display, four samples in the horizontal and vertical directions are treated as one sample, and are represented by two bits. In this case, the required capacity is (512/2) × (480/2) × 2 = 122,880 as shown in FIG. 8B.
This is stored in a video RAM having a depth of 16 bits.
When allocated above, the area required as the character data area CG is 3 in the horizontal direction as shown in FIG. 8C.
2, 256 areas in the vertical direction 32 × 256 × 16 = 131,072 bits. In FIG. 4, this (32 × 256) area is allocated as an area CG of character data.
The pattern data includes (64 × 32) pattern data areas PA1 to PA8 and (8 × 32)
128) PB1 to PB4.
That is, the screen of the pattern data is shown in FIG.
As shown in A, 640 pixels in the horizontal direction and 5 pixels in the vertical direction
There are 12 pixels. This is slightly larger than the character data screen. In the pattern display, four samples in the horizontal and vertical directions are treated as one sample, and are represented by four bits. in this case,
The required capacity is, as shown in FIG. 9B, (640/2) × (512/2) × 4 = 327,680
As shown in FIG. 9C, one screen of the pattern data includes areas A1, A2, A
3, ..., areas B1 and B2 divided in the vertical direction
And processed separately. Areas A1, A2, A3, ...
Is an (256 × 32) area as shown in FIG. 10A, and the areas B1 and B2 are (32 × 256) areas. Therefore, areas A1, A2, A
The size of each of 3,... Is 256 × 32 × 4 = 32,768 bits. The size of each of the areas B1 and B2 is 32 × 256 × 4 = 32,768 bits.
When areas A1, A2, A3,... Are allocated on a video RAM having a depth of 16 bits, area A
As shown in FIG. 10B, the areas required as 1, A2, A3,... Are 64 areas in the horizontal direction and 32 areas in the vertical direction (64 × 32 × 16 = 32,768 bits). When the areas B1 and B2 are allocated on a video RAM having a depth of 16 bits, the areas required as the areas B1 and B2 are, as shown in FIG. 10B, 8 in the horizontal direction and 128 in the vertical direction ( 8 × 128 × 16 = 1
6,348 bits) for two (16,348 = 32,7)
In FIG. 4, the pattern data of the areas A1, A2, A3,... Are assigned to the areas PA1, PA2, PA3,. (8 × 128) areas PB2 and PB4
Is allocated to the data in the area B1. (8 × 12
Data of area B2 is allocated to areas PB1 and PB3 of 8).
As described above, the area of the pattern data is 640 pixels in the horizontal direction and 512 pixels in the vertical direction. This corresponds to a PAL screen. N
On the screen of the TSC system, the number of effective lines in the vertical direction is 48
0 and the pattern data areas PA1, PA2, P
If A3,... Are (32 × 64), the area is 7.5 areas. Therefore, the area PA8 is used only for half.
Since the character data is 2 bits, only four colors can be expressed. The pattern data is 4 bits, and can express only 16 colors. Therefore,
A color pallet area CP is provided, and a plurality of colors can be expressed using the color pallet.
The luminance data and the chroma data based on the imaging screen are temporarily stored in the luminance data area Y and the chroma data area C of the image memory 31, and are read out. When a character or pattern is synthesized on this screen, the character data or pattern data stored in the character data area CG or the pattern data areas PA1, PA2, PA3,... And PB1 to PB4 are synthesized by a microprogram. Is done.
Next, a recording format of still image data in one embodiment of the present invention will be described. Note that this format is basically based on the “still image data recording device, still image data reproducing device and printer device (International Publication No. W096 / 0)
There are a plurality of types of files, such as a management file, a comprehensive index file, an image data file, an audio data file, and other files.
These files are given a file name consisting of a maximum of eight characters and an extension of three characters, like the MS-DOS file. As the extension, an extension “PMF” indicating management information, an extension “PMP” indicating image data, an extension “PMX” indicating index image collection data, and indicating audio data There is an extension “PMA” and an extension “PMO” indicating other data files. The file type can be identified by these extensions.
The management file (file with the extension PMF) is a file for performing file management and the like.
The management file includes an overall information management file (OV_INF.PMF) for managing overall information, and an image data management file (PIC_IN) for managing a plurality of image data and a plurality of narration data in a subdirectory.
F. PMF), a split screen management file (PED_INF.PMF) for managing a group of split screens, a print data management file (PRT_INF.PMF) for managing a plurality of print data files, a plurality of playback control data files and BGM audio Playback control management file for managing data (PMF_INF.PMF)
The image data file (file with the extension PMP) is a file for storing image data compressed by JPEG or the like. As image data, there are various image sizes corresponding to a video screen having a normal aspect ratio (3: 4), a wide screen of a video having an aspect ratio (16: 9), and a photograph having an aspect ratio of (3: 2). Is used. That is, (PSNnnnnnn.PM
The file P) is a screen (SD-N plane) having (640 × 480) pixels and an aspect ratio of (4: 3).
The file of (PSWnnnnnn.PMP) is a screen (SD-W surface) having (848 × 480) pixels and an aspect ratio of (16: 9). (PHPnnnnnn.PM
The file P) has a pixel count of (1536 × 1024)
Is a screen (HD-P plane) having an aspect ratio of (3: 2). The file of (PHWnnnnnn.PMP) has a pixel count of (1920 × 1080) and an aspect ratio of (1).
6: 9) is the screen (HD-W) surface. (PUPnnn
nn. PMP) files have a pixel count of (3072 × 2)
048) and the screen (UD-
P) plane. The screen of (PEDnnnn.PMP) is a division management plane, and (PEXnnnn.PMP)
Files are reserved.
A comprehensive index file (with extension PM
X files), a comprehensive index file (OV_IDX.PMX) summarizing the representative index images of each image directory, and an image index file (PI) summarizing the index images of the image directories.
An audio data file (file with an extension of PMA) is a file for storing audio data compressed by ATRAC.
Narration file (NR * nnnnnn.PMA)
And a BGM audio data file (MSCnnnn.PM)
A). * Is A, B, C, D, E,
It is possible to have four narration files. Thereby, for example, it is possible to have a narration corresponding to multiple languages. Narration file (NR *
nnnnnn. PMA) is an audio signal that has a 1: 1 correspondence with an image. BGM audio data file (MS
Cnnn. PMA) is a BGM audio for a slide show and is a data file linked to a plurality of images.
As another data file (a file having an extension of PMO), a print data file (PRTnnn.
O), a telop data file (TEROP.PMO) which is a file of a telop data collection, a keyword search file (KW_DTBS.PMO) which collects search keywords and manages correspondence with images, a search time stamp, and a file A time stamp search data file (TS_DTBS.PMO) for grouping names and organizing correspondence with images, and a reproduction control data file (P) for controlling a sequence of images and audio.
FIG. 11 shows the structure of a file. As shown in FIG. 11A, the file includes a header and a data body. Between the header and the data body,
A blank can be provided. The start address of the data body is specified by the header. The data body starts from an address that is a multiple of 4, and for data of 2 bytes or more, the upper byte is prioritized. The data size is a multiple of 4 except for JPEG data. Strings are always terminated with a null.
As shown in FIG. 11B, the header includes a format table at the head thereof and a plurality of tables. As shown in FIG. 11C, the table is provided with a table ID that defines the table, and a next table pointer that points to the address of the next table pointer, followed by table data. A blank can be provided between the table data and the next table ID. The next table pointer is a pointer indicating the address of the next table ID, and the address of the next table is indicated by (table size−2).
As table IDs, format table (10h), name table (11h), comment table (12h), copyright information table (13h), disk ID table (14h), image parameter table (20h), recording information Table (21h), color management parameter table (22h), division management table (23
h), camera information table (24h), scanner information table (25h), appearance information table (26)
h), a narration table (30h), a BGM table (31h), a lab information table (40h), an option table (90h), and the like (the ID of each table is shown in parentheses). Regarding each table, the previously proposed “still image data recording device, still image data reproducing device, and printer device (International Publication No. WO96 / 09716)
No.)]. Here, a narration table (30h) for handling voice information and a BGM table (31h) will be described.
FIG. 12 shows a narration table. As shown in FIG. 12, the narration table has a table ID (1 byte), a next table pointer (1 byte), a reserve (1 byte), a mode (1 byte), a copyright / editing right (1 byte), and a reserve ( 1 byte), total time (2 bytes), start time (2 bytes), valid time (2 bytes), reserve (3 bytes), character identification code (1 byte), and name (40 bytes). Except for the names, all are recorded in binary (B) data format. ASCII or other character codes can be used for the name.
The table ID is "30h" in the narration table. The next table pointer indicates the address of the next table ID. As the mode, a compression ratio at the time of compression by ATRAC and an audio mode such as stereo / monaural are designated. Copyright / editing rights are
Used to set copy prohibition and editing prohibition. The total time is the total time of the entire narration and is described in units of 1/2 second. The start time is the actual start time and is described in units of 1/2 second. The valid time is described in units of 1/2 second.
The character identification code is ASCII, ISO-8859-
1, shift JIS, binary, etc. are used to identify characters. The name is described in correspondence with the character identification code.
FIG. 13 shows a BGM table. The BGM table is basically configured in the same manner as the narration table. In the BGM table,
As shown in FIG. 13, a table ID (1 byte), a next table pointer (1 byte), a reserve (1 byte),
Mode (1 byte), Copyright / Editing right (1 byte), Reserve (1 byte), Total time (2 bytes), Start time (2 bytes), Effective time (2 bytes), Reserve (3 bytes), Character It consists of an identification code (1 byte) and a name (40 bytes). Except for the names, all are recorded in binary (B) data format. ASCII or other character codes can be used for the name.
The table ID is, in the BGM table,
"31h" is set. The next table pointer indicates the address of the next table ID. The mode is AT
A compression ratio at the time of RAC compression and an audio mode such as stereo / monaural are designated. The copyright / editing right is used to set copy prohibition and editing prohibition. The total time is B
The total time of GM, which is described in units of 1/2 second. The start time is the actual start time and is described in units of 1/2 second. The valid time is described in units of 1/2 second. The character identification code is
Used to identify characters such as ASCII, ISO-8859-1, shift JIS, and binary. The name is described in correspondence with the character identification code.
The files are managed in a hierarchical directory structure. The directory is an image directory (P
ICnnnn), a divided image directory (DPDnn)
nnn), a print directory (PRINT), and a playback control directory (PMSEQ).
A subdirectory (PIC_MD) is provided in the root directory. Files are managed in this directory (PIC_MD). It is essential to provide this directory (PIC_MD).
In this directory (PIC_MD),
Comprehensive information management file (OV) to manage the entire information
_INF. PMF) and a comprehensive index file (OV_IDX.PMF) which is a comprehensive image index collection of index images representative of each image directory.
Is placed. This comprehensive information management file (OV_IN
F. PMF) and comprehensive index file (OV_I)
DX. It is essential to have a PMF). Furthermore,
As an option, a telop data file (TELOP.PMO) which is a file of a telop data collection, a search data file (KW_DTBS.PMO) for collecting search keywords and managing correspondence with images, and a time stamp search data (TS_DTBS.PMO) ) Is placed.
It is essential to provide an image directory (PICnnnnnn) for managing image data and narration data under the directory (PIC_MD). Further, a print directory (PRINT) for managing print data and a playback control directory (PMSQ) for managing playback control data and BGM data are provided as options.
Image directory (PICnnnnnn)
Is created for each type of image, for example. In each image directory (PICnnnnnn), it is essential that a plurality of image data (data with the extension of PMP) be stored, and that an image data management file (PIC_INF.PMF) and an image index file (PIDXnnn.PMX) be stored. Is done. Image data management file (PIC
_INF. A plurality of image data and a plurality of narration data are managed based on the PMF). The image index file (PIDXnnn.PMX) is a collection of index images in an image directory. Furthermore,
When performing narration, an optional narration data file (NR * nnnnnn.PMA)
Is placed. In the case of a divided screen, a divided image directory (DPDnnnnnn) is provided under the image directory (PICnnnnnn).
The divided image directory (DPDnnnn)
In (n), an image file (PEDnnn.PMP) for a split screen is optionally placed. If there is an image file for split screens (PEDnnnn.PMP), a split screen management file (PE
D_INF. PMF) is mandatory.
The print directory (PRINT) optionally includes a print data file (PR).
Tnnn. PMO) is placed. If there is a print data file (PRTnnn.PMO), it is essential to store a print data management file (PMS_INF.PMF) for managing a plurality of print data files.
The playback control directory (PMSEQ) optionally includes BGM audio data (MS
CCnnn. PMA) and a reproduction control data file (PMSnnn.
PMO) is placed. BGM audio data (MSC
Cnnn. PMA) and playback control data file (P
MSnnn. PMO), a playback control management file PMS_INF. For managing a plurality of playback control data files and BGM audio data files. P
It is mandatory to place MF.
FIG. 14 shows an example of a hierarchical directory structure. As shown in FIG. 14, a subdirectory (PIC_MD) is provided in the root directory. In this directory (PIC_MD), a comprehensive information management file (OV_INF.PMF) and a comprehensive index file (OV_IDX.PMF) are placed.
Furthermore, a telop data file (TELOP.PM
O), search data file (KW_DTBS.PM)
O), time stamp search data (TS_DTBS.P)
MO) is placed.
Under the directory (PIC_MD),
Image directory (PIC0000, PIC0000)
1, PIC00002,...), A print directory (PRINT), and a reproduction control directory (PMSQ).
Is provided. Image directory (PIC0000,
PIC00001,...) Are classified, for example, for each image genre. In the case of an electronic still album,
One image directory corresponds to one album.
For example, 30 albums can be formed on one disc. Each album stores a photo taken from the video input terminal 62.
The image directory (PIC00000) contains an image data management file (PIC_INF.PM).
F) and an image index file (PIDX000.
PMX) is placed.
Then, the image directory (PIC000)
00) contains an image file (PSN00000.PM).
P), (PHP0000.PMP), a narration data file (NRA0000.PMA), and a narration data file (NRB0000.PMA). Each of these image files corresponds to one still image, and the narration data file is audio data accompanying the image. In the case of an electronic still album, an image data file corresponds to a photograph. 1
In a book album, for example, a maximum of 1000 photos (however, a maximum of 2000 photos per disk) can be stored.
The image file (PSN00000.PM)
P) and the image file (PHP00000.PMP)
The same image but different sizes. The image file (PSN00000.PMP) has an aspect ratio (4:
3) is a normal screen (SD-N plane), and the image file (PHP0000.PMP) has an aspect ratio of (3:
It is a screen (HD-P surface) of the photograph size of 2). Narration data file (NRA00000.PMA),
(NRB00000.PMA) is an image file (PS
N00000. PMP) and (PHP00000.P
MP) is a file of narration audio data. In one embodiment of the present invention, each image can have two types of audio data files.
The image directory (PIC00)
000) has a divided image directory (DPD0000).
2) is provided, and the divided image directory (DPS0
00002) includes an image file (PED) for a split screen.
000. PMP), (PED001.PMP), ...
Is placed. Then, a divided screen management file (PED_INF.PMF) for managing the divided screen group is placed.
Further, the image directory (PIC00)
000) contains an image file (PSN00003.PM).
P) is placed. This image file (PSN0000
3. PMP) is a screen (S :) with an aspect ratio of (4: 3).
Other image directories (PIC0000)
1) includes an image data management file (PIC_INF.
PMF) and an image index file (PIDX00)
0. PMX) and (PIDX001.PMX). The image directory (PIC00001) contains image files (PSN0000.PMP), (P
SN00001. PMP) is placed. Image files (PSN0000.PMP), (PSN00001.PMP)
PMP) is a screen having an aspect ratio of (4: 3).
Still another image directory (PIC000)
02), an image data management file (PIC_IN)
F. PFM) and an image index file (PIDX)
000. PMX) is placed.
The print directory (PRINT) contains a print data file (PRT000.PMO).
And a print data management file (PMS_INF.PMF) for managing the print data file.
The playback control directory (PMSEQ) contains a playback control management file PMS_INF. PMF,
Playback control data file (PMS000.PMO),
(PMS001.PMO) and BGM audio data (MSC000.PMA), (MSC0.PMO).
01. PMA) is placed.
In the embodiment of the present invention described above, when reproducing a still image and a sound, first, the U-TOC
Is reproduced, and based on the U-TOC data, a subdirectory (PIC MD) information is extracted. According to this subdirectory, an image (still image) data file (PSNnnnnnn.PMP) and a narration data file (NR
Annnnnn. PMA) and the narration data file (NRAnnnnn.PMA). When the image data file (PSNnnnn.PMP) is taken out, the PMP table is referred to, and based on the data of this table, the image data file (PSNnnnn.
n. PMP) is accessed and the image data file is decoded.
The narration data files (NRAnnnnn.PMA) corresponding to the image data files, (N
RAnnnn. The narration table of the narration data file (NRAnnnnn.PM) is referred to based on the data of the narration table.
A), (NRAnnnnn. PMB) are accessed. This narration data file is decrypted.
As described above, the narration corresponding to this image can be reproduced while reproducing the image. The reason why the image data file is decoded before the narration data file is that the image decoding time is longer than the audio decoding time. Further, in one embodiment of the present invention, when there are two narration data files corresponding to one image data file, as described later, the user performs a narration selection operation, and the narration specified by this operation is performed. Will be played.
When the reproduction of the still image and the narration is completed, the file number nnnnnn is incremented. If the file number does not overflow, the reproduction of the next image file and its narration file are reproduced in the same manner.
For example, the hierarchical file structure shown in FIG.
To save the images in the image directory (PIC0000).
If you play the narration, use the subdirectory
(PIC MD) and extract the image directory (PIC)
00. PMP) and corresponding to this image data file
Narration data file (NRA00000.PM
A), (NRB00000.PMA) is taken out. Soshi
The image data file and the narration specified by the user.
The application data file is decrypted.
Next, the file number is incremented from (00000) to (00001) and the image data file (PS) in the image directory (PIC0000) is incremented.
N00001. PMP) and a narration data file (NRA0000) corresponding to this image data file.
1. PMA) is retrieved. Then, as described above, these files are accessed and decrypted.
In one embodiment of the present invention, as described above, when reproducing an image data file and an audio data file, a plurality of (for example, two) types of narration data files correspond to one image data file. (NRA0000.PMA), (NRB00000.PMA).
PMA). As an example,
One narration data file (NRA0000
0. PMA) is used for after recording after creating a plurality of image files. The other narration data file (NRB00000.PMA)
Is used to record environmental sounds and the like when the image file was created. The user can select the narration when reproducing the still image and the narration. FIG. 15 is a flowchart showing a process of selecting audio data at the time of reproduction in one embodiment of the present invention. FIG. 15 shows processing in the case of reproducing an electronic still album.
First, when the disc is loaded into the drive in step ST1, the file management data is reproduced, stored in the DRAM 42, and further stored in the RAM 26 of the CPU (step ST1).
2). The file management data includes U-TOC and directory information. It is checked from the file management data whether the mounted disc is of the Picture MD standard.
In step ST3, the directory (PIC) is read from the read file management data. MD) is checked. If the directory does not exist, the process ends. If there is a directory, a list of albums is displayed (step ST4). The album is
Up to 30 books can be stored in one disc. A cover image (index image) is set for each album. The cover image of the recorded album is divided and displayed on the screen of the liquid crystal display 3. For example, 15 cover images can be divided and displayed on the screen.
The user looks at the album list display and selects a desired album. In step ST5, it is determined whether an album selection input has been made. When an album is selected and input, a list of photos in the album is displayed (step ST6). Similarly to the album list display, for example, 15 pictures are divided and displayed on the screen. A photo is selected by a process such as clicking a photo switching button or clicking a desired photo (step ST7). The image of the selected photo is displayed on the screen. In this manner, operations such as execution of a menu and selection operation are performed using the GUI including the key input 29, the display 3, and the memory controller 28.
When the picture is displayed, the narration button is pressed, and a voice reproduction is instructed (step ST9).
For example, as shown in FIG. 17A, “narration playback” displayed on the screen displaying the selected photo
The cursor is moved to the narration button K1 by the cursor feed key, and clicking this button K1 (or another button for determination) instructs voice reproduction. The buttons K2 and K3 are used to switch the displayed photo.
When the narration button K1 is pressed, the presence or absence of a narration A file (corresponding to the narration data file (NRA0000.PMA)) is checked (step ST10). If there is a narration A file, it is checked whether there is a narration B file (corresponding to the narration data file (NRB0000.PMA)) (step ST1).
If there are narration A and narration B files, a narration file selection display is performed in step ST12. In FIG. 17B, K4 is a narration file selection display. In the selection display K4, the user can select a narration by moving the cursor to the narration on the side to be selected and clicking this display (or another button for determination).
In step ST13, it is checked whether or not there is a narration A selection input. If narration A is selected, narration A is reproduced (step ST14). As shown in FIG. 17B, in the selection display K4, a bar is added to the display on the side of the selected narration, indicating that narration A has been selected.
Of course, the display indicating this selected item is inverted,
Blink etc. can be used.
If only the file of the narration A exists, the step ST is performed without selection display.
The process proceeds from step 11 to step ST14, and narration A
Is played. Also, when the narration B is selected and input (step ST16) while the selection display (step ST12) is performed, the narration B is reproduced.
The file of narration A is stored in step ST
If it is determined in step 10 that there is no narration B file, the presence or absence of a file of narration B is checked (step ST15).
If there is a file of narration B, narration B is reproduced (step ST17). If there are no files for narrations A and B, the process ends. In this case, "No narration" is displayed on the screen to notify the user that there is no voice data. Not only the display but also a buzzer or the like may be used.
As described above, in one embodiment of the present invention, it is possible to have a plurality of, for example, two pieces of audio data for one still image. When only one audio data file exists without playing back the audio data file, the audio data file is automatically reproduced, and the audio data is selected only when there are two audio data files. . Therefore, the operation for reproducing the audio data can be simplified.
According to the present invention, each still image data can have a plurality of audio data. When reproducing the selected still image, only when there are a plurality of audio data, the audio data is selectively displayed. If there is only one audio data, the audio data is automatically reproduced. Further, when there is no voice data, a message to that effect is displayed. Therefore, even if the user does not know the presence or absence of the audio data accompanying the still image data to be reproduced, or the number of the audio data, effective audio reproduction can be performed by a simple operation.
FIG. 1 is a perspective view showing an external configuration of an embodiment of an electronic still camera to which the present invention is applied.
FIG. 2 is a schematic diagram used for explaining patterns and character display.
FIG. 3 is a block diagram of one embodiment of the present invention.
FIG. 4 is a schematic diagram used for describing a memory according to an embodiment of the present invention.
FIG. 5 is a schematic diagram used for describing a memory according to an embodiment of the present invention.
FIG. 6 is a schematic diagram used for describing a memory according to an embodiment of the present invention.
FIG. 7 is a schematic diagram used for describing a memory according to an embodiment of the present invention.
FIG. 8 is a schematic diagram used for describing a memory in one embodiment of the present invention.
FIG. 9 is a schematic diagram used for describing a memory according to an embodiment of the present invention.
FIG. 10 is a schematic diagram used for describing a memory according to an embodiment of the present invention.
FIG. 11 is a schematic diagram used for describing a recording format in one embodiment of the present invention.
FIG. 12 is a schematic diagram used for describing a recording format in one embodiment of the present invention.
FIG. 13 is a schematic diagram used for describing a recording format in one embodiment of the present invention.
FIG. 14 is a schematic diagram used for describing a recording format in one embodiment of the present invention.
FIG. 15 is a flowchart for explaining the operation of one embodiment of the present invention.
FIG. 16 is a flowchart for explaining the operation of one embodiment of the present invention.
FIG. 17 is a schematic diagram showing a display during a narration reproduction operation according to an embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Electronic still camera main body 2 Lens 21 Magneto-optical disk drive 27 Image compression / expansion circuit 31 Image memory 41 Audio compression / expansion circuit
A reproducing apparatus comprising: control means for controlling a single sound data to be automatically reproduced by the sound means.
A reproducing apparatus characterized by indicating that there is no audio data.
A step of enabling selection of audio data and reproducing the selected audio data; and, as a result of the above check, when there is a single audio data,
Automatically reproducing a single piece of audio data.
Priority Applications (1)
|Application Number||Priority Date||Filing Date||Title|
|JP8302879A JPH10145726A (en)||1996-11-14||1996-11-14||Still image and sound reproducing device and its method|
Applications Claiming Priority (1)
|Application Number||Priority Date||Filing Date||Title|
|JP8302879A JPH10145726A (en)||1996-11-14||1996-11-14||Still image and sound reproducing device and its method|
|Publication Number||Publication Date|
|JPH10145726A true JPH10145726A (en)||1998-05-29|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|JP8302879A Pending JPH10145726A (en)||1996-11-14||1996-11-14||Still image and sound reproducing device and its method|
Country Status (1)
|JP (1)||JPH10145726A (en)|
Cited By (3)
|Publication number||Priority date||Publication date||Assignee||Title|
|US7031597B2 (en)||1998-08-07||2006-04-18||Hitachi, Ltd.||Method for recording still picture group management information|
|US7747136B2 (en)||1998-06-24||2010-06-29||Samsung Electronics Co., Ltd.||Recording medium for storing information for still picture, recording and/or reproducing method and apparatus therefor|
|CN102073208A (en) *||2009-11-23||2011-05-25||奥林巴斯映像株式会社||Photographic device and photographic device system|
- 1996-11-14 JP JP8302879A patent/JPH10145726A/en active Pending
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|US7031597B2 (en)||1998-08-07||2006-04-18||Hitachi, Ltd.||Method for recording still picture group management information|
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