JP2001211427A - Optical disk reproduction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk reproduction device with excellent user- friendliness, which can attain zoom reproduction without the need for repeating the same operation. SOLUTION: The optical disk reproduction device can automatically conduct zoom processing based on a production time and zoom information in the case of recording the zoom information denoting contents of zooming set by a user on the basis of a reproduction time of an optical disk and reproducing the recorded information again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk reproducing apparatus for reproducing data recorded on an optical disk.

[0002]

2. Description of the Related Art In recent years, an optical disk reproducing apparatus for a moving image, which reproduces an optical disk on which data such as video and audio data is recorded, has been developed. Widespread.

[0003] Among them, currently, MPEG standardized internationally
2 (Moving Image Coding Exp
A DVD (Digital Video Disc) standard that uses an AC3 audio compression method using an ert Group (ert Group) method has been proposed.

This standard supports MPEG2 as a moving picture compression system, AC3 audio and MPEG audio as audio in accordance with the MPEG2 system layer, and further performs sub-length data obtained by run-length-compressing bitmap data for subtitles, fast forward rewind, etc. Special play control data (Navi Pack) is added.

An optical disk reproducing apparatus for reproducing data from an optical disk based on such a standard has been put to practical use.

In this optical disc reproducing apparatus, when using a zoom function for enlarging and reproducing a screen being reproduced, a user needs to input a screen position to be zoomed and a screen size to be displayed from an input device such as a remote controller. There is.

In addition, when it is desired to zoom a plurality of points on the screen, it is necessary to repeat this operation as many times as the number of the points, which is very troublesome.

In addition, when performing zoom reproduction of the same position as the position where zoom reproduction was performed in the past with the same size, exactly the same operation had to be repeated.

Further, when performing multi-angle playback which is a function unique to DVD, even if the angle is changed from one angle to another angle, if the zoom playback is performed in the scene before the angle change, the angle after the angle change is changed. In the scene, zoom playback is performed in the same way as the scene before the angle change,
An operation for returning to the normal playback and an operation for resetting the zoom setting again were required.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical disk reproducing apparatus which eliminates the above-mentioned drawbacks, is easy to use, and enables zoom reproduction without repeating the same operation.

[0011]

An optical disc reproducing apparatus according to the present invention comprises a reproducing means for reproducing an image recorded on an optical disk, and an instruction for instructing a predetermined area of an image reproduced by the reproducing means to zoom up. Means, zoom-up means for zooming up a predetermined area of an image reproduced by the reproducing means in accordance with an instruction from the instruction means, output means for outputting an image enlarged by the zoom-in means, and zoom-in means Recording means for recording the contents of the zoom-up by the means on the basis of the reproduction time by the reproducing means from the optical disk; and, when the image recorded on the optical disk is reproduced by the reproducing means, Based on the playback time of the optical disc, the zoom-up content stored in the recording Reading means for outputting, and processing means for zooming up the image reproduced by the reproducing means using the zoom-up means and outputting by the output means based on the contents of the zoom-up read by the reading means. Consists of

An optical disk reproducing apparatus according to the present invention reproduces data recorded on an optical disk.
When reproducing data recorded on the optical disc, first processing means for reproducing an image by enlarging an arbitrary screen position to an arbitrary size, and reproducing the content of the processing by the first processing means. Recording means for recording based on time; and when reproducing data recorded on the optical disk again, an arbitrary screen position can be set by processing contents based on the reproduction time of the data recorded on the recording means. And second processing means for reproducing the image after expanding it to an arbitrary size.

An optical disk reproducing apparatus according to the present invention reproduces data recorded on an optical disk and selectively reproduces data for a plurality of angles. Selecting means for selecting reproduction of one of the data for a plurality of angles; and reproducing data with an arbitrary screen position enlarged to an arbitrary size when the data for the angle selected by the selecting means is reproduced. A first processing means for recording, a recording means for recording the processing contents of the first processing means and an angle selected by the selection means based on a reproduction time of the data, and a recording means for recording the data on the optical disc. When reproducing the data again, the data for the angle based on the reproduction time of the data recorded in the recording means is read. Data is reproduced, and the processing content based on the playback time of the data, and a second processing means for reproducing an enlarged any screen position into an arbitrary size.

An optical disk reproducing apparatus according to the present invention reproduces data recorded on an optical disk and selectively reproduces data for a plurality of angles. Selecting means for selecting reproduction of one of the data for a plurality of angles; and reproducing data with an arbitrary screen position enlarged to an arbitrary size when the data for the angle selected by the selecting means is reproduced. The first processing means, and the processing contents of the first processing means and the angle selected by the selecting means are recorded based on the reproduction time of the data, and the processing contents for the same reproduction time at the same angle are recorded. Recording means for recording a plurality of data, and recording on the recording means when reproducing data recorded on the optical disc again. Selecting one of a plurality of processing contents for angle based on the reproduction time of the data being,
A second processing means for reproducing an image by expanding an arbitrary screen position of the data with respect to the angle to an arbitrary size with the selected processing content.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an optical disc reproducing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic configuration of an optical disk reproducing apparatus according to the present invention.

The optical disk reproducing apparatus 1 is a reproduction-only device for reproducing data stored on an optical disk 10 such as a DVD.

The data structure recorded on the optical disk 10 will be briefly described.

FIG. 2 shows an information area of the optical disk 10. In the information area, a lead-out area is provided on the outer peripheral side, and a lead-in area is provided on the inner peripheral side. A volume space is provided between the lead-out area and the lead-in area. The lead-in area has a control data area in which control data such as a serial number is recorded. The optical disk 10 can distinguish zoom information described later, for example, by the serial number.

The volume space includes a volume and file configuration zone, a DVD video zone, and the like. UDF (Universal)
DiskFormat Specification Revision 1.02) A bridge configuration is described, and the data can be read even by a computer of a predetermined standard. The DVD video zone has a video manager (VMG) and a video title set (VTS). The video manager (VMG) and the video title set (VTS) are each composed of a plurality of files. The video manager (VMG) is information for controlling a video title set (VTS).

FIG. 3 shows a video manager (VMG).
And the structure of a video title set (VTS).

The video manager (VMG) includes video manager information (VMGI) as control data and a video object set (VMGM) as data for menu display. VOBS). Also, backup video manager information (VMG) having the same contents as the VMGI
I).

The video title set (VTS) includes video title set information (VTSI) as control data and a video object set (VTSM) as data for menu display. VOBS)
And a video object set (VTSTT) for a title of a video title set which is a video object set for displaying video. VOBS).
It also has backup video title set information (VTSI) having the same contents as the VMGI.

Further, a video object set for displaying images (VTSTT) VOBS) is composed of a plurality of cells. Each cell (Cel)
1) is assigned a cell ID number.

FIG. 4 hierarchically shows the relationship between the video object set (VOBS) and the cell (Cell) and the contents of the cell (Cell). When DVD playback processing is performed, for video breaks (scene change, angle change, story change, etc.) and special playback, a video object unit (VOBU) which is a cell (Cell) unit or a lower layer thereof
Units and even interleaved units (ILVU)
It is now handled in units.

Video Object Set (VOBS)
Is a multiple video object (VOB) IDN1 to V
OB IDNi). Further, one video object includes a plurality of cells (C IDN1 to C I
DNj). One more cell (C
ell) includes a plurality of video object units (VOs).
BU) or an interleaved unit described later. One video object unit (VOBU) is composed of one navigation pack (NV PCK, NV pack), multiple audio packs (A PCK), multiple video packs (V PC
K), multiple sub-picture packs (SP PCK).

Navigation Pack (NV PCK)
Are mainly used as control data for controlling the reproduction and display of data in the video object unit to which it belongs, and control data for performing data search of the video object unit.

The video pack (V PCK) is main video information and is compressed according to a standard such as MPEG. Sub picture pack (SP PCK) is sub-picture information having auxiliary contents with respect to the main picture. Audio Pack (A PCK) is audio information.

FIG. 5 shows a video object unit (V
OBU) and a video pack in this unit. The video data in the VOBU contains one or more G
It is composed of OP. The encoded video data conforms to, for example, ISO / IEC13818-2. A VOBU GOP is composed of an I picture and a B picture, and this data sequence is divided into a video pack.

Next, a data unit when the multi-angle information is reproduced will be described. When a plurality of scenes having different viewpoints with respect to a subject are recorded on a disc, an interleaved block is constructed on a recording track to realize seamless reproduction. In the interleave block portion, a plurality of video objects (VOBs) having different angles are respectively divided into a plurality of interleave units. As described above, they are arranged and recorded so that seamless reproduction is possible.

FIG. 6 shows an example of the arrangement of interleaved blocks. This example shows an example in which 1 to m video objects (VOBs) are each divided into n interleave units (ILVUs) and arranged. Each video object (VOB) is divided into the same number of interleave units. In the figure, (1, 1) is the first division unit of scene 1,
(2, 1) means that it is the first division unit of scene 1.

FIG. 7 shows a configuration example of one pack and one packet. One pack includes a pack header and a packet. A pack start code, a system clock reference (SCR), and the like are described in the pack header. The pack start code is a code indicating the start of a pack, and the system clock reference (SCR) is information indicating the location of the entire playback apparatus in the elapsed playback time. The length of one pack is 2048
A byte is defined and recorded as one logical block on the optical disk.

One packet is composed of a packet header and video data, audio data, sub-picture data, or navigation data. The packet header of the packet may be provided with stuffing. Padding may be provided in the data portion of the packet.

FIG. 8 shows the NV The PCK is extracted and shown.

NV The PCK basically has a picture control information (PCI) pack for controlling a display image and a data search information (DSI) pack existing in the same video object. In each pack, a packet header and a substream ID are described, followed by data. A stream ID is described in each pack header, and the NV It indicates that it is PCK, and the substream ID identifies PCI and DSI. In each pack header, a packet start code, a stream ID, and a packet length are described, followed by each data. By determining these pieces of information, a navigation pack can be detected.

The PCI packet is navigation data for changing the display content in synchronization with the reproduction of the video data in the video object unit (VOBU) to which the NV packet belongs.

[0038] The PCI packet includes PC which is general information.
I General Information (PCI GI),
Non-seamless angle information (NSML
ANGLI) and highlight information (H
LI), and recording information (RECI), which is recording information.

PCI The GI has a general description of this PCI.
It is information and the following information is described. This na
Logical block number that is the address of the navigation pack
Bar (NV PCK LBN), managed by this PCI
Indicates the attributes of the video object unit (VOBU)
Video object unit category (VOBU C
AT), a video object unit managed by this PCI.
Prohibition or permission of user operation during the display period of the knit
User operation control as information indicating
(VOBU UOP CTL), video object
Start time of unit display (VOBU S PT
M), at the end time of the display of the video object unit
Yes (VOBU E PTM). VOBU S
The first video specified by the PTM is an MPEG standard.
This is an I picture in a case. Furthermore, video
A video showing the duration of the last video in the object unit.
Video object unit sequence end pre
Presentation time (VOBU SE E PTM)
Or relative display progress since the first video frame in the cell
Cell Elapse Time (C ElTM) etc.
Is also described.

Also, NSML ANGLI indicates the address of the destination at the time of an angle change. That is, the video object unit also has images captured from different angles. Then, when the user specifies to display an image at an angle different from the currently displayed angle, the address of the VOBU to be shifted to the next reproduction is described.

The HLI is information for designating a specific area in the screen in a rectangular shape, and changing the luminance of this area, the color of the sub-picture displayed here, and the like. This information includes the Highlights General Information (HL G
I) A button color information table (BTN) for allowing the user to select a button for color selection COLIT), and a button information table (BTNIT) for the selection button.

RECI is video, audio, and sub-picture information recorded in the video object unit, and describes what data is to be decoded. For example, the information includes a country code, a copyright holder code, and a recording date.

The DSI packet is navigation data for executing a search for a video object unit.

The DSI packet contains the general information DS.
I General Information (DSI GI) and Seamless Playback Information (SML) PBI), Seamless Angle Information (SML) AGLI),
Video Object Unit Search Information (VOBU SRI), synchronization information (SYNCI), and the like.

As shown in FIG. The GI describes the following information.

NV Indicates the PCK decoding start reference time
NV which is the system clock reference PCK
SCR, NV Indicates the PCK logical address (NV P
CK LBN), this NV Video object to which PCK belongs
Indicates the end address of the project unit (VOBU E
A) is described. Furthermore, decode first
Of the first reference picture (I-picture) for
Address (VOBU 1STREF EA) First deco
Second reference picture (P picture) for loading
End address (VOBU) 2NDREF EA)
A third reference picture (B picture) for decoding first
Char) end address (VOBU) 3RDREF E
A) is described. Furthermore, this DSI belongs to
ID number of the VOB (VOBU VOB IDN)
ID number (VOBU) of the cell to which this DSI belongs C
IDN), relative to the first video frame in the cell
Cell Elapse Time (C ElTM)
Is also described.

As shown in FIG. The following information is described in the PBI.

The VOBU to which this DSI belongs is
Unit (ILVU) or video unit
Indicates the connection of the object, that is, the next data
Pre-unit (PR
EU) video object unit sea
Muress category (VOBU SML CAT)
You. Also indicates the end address of the interleaved unit.
(ILVU EA), next interleaved unit
(ILVU) SA), next interface
-Indicates the size of the opened unit (ILVU S
Z), video display within a video object (VOB)
Indicates start time (VOB V S PTM), video
The video display end time in the object (VOB)
Show (VOB V E PTM), video objects
Indicates the audio stop time in (VOB) (VOB)
A STP PTM), Video Object (VO)
B) indicates the audio gap length in (VOB) A
GAP LEN).

The pre-unit (PREU) is the last unit of the BOVU immediately before the interleave unit.

The above video object unit seam
Less category (VOBU SML CAT)
The interleave unit is
Flag indicating whether or not it is a knit, and at the end point
A flag indicating whether the unit is
Have been.

FIG. 11 shows the seamless angle information (SM
L AGLI). C1 to C9 indicate the number of angles, and can indicate the address and size of the destination interleave unit even when information of up to nine angles exists. That is, the address and size (SML) of the next interleaving unit to be shifted in each angle AGL Cn DSTA) (n = 1 to
9) is described. If an angle change operation is performed by the user during viewing, this information is referred to,
The playback device can recognize the playback position of the next interleave unit.

As described above, the number of packs in the interlibrary unit can be determined based on the size.

The optical disk reproducing apparatus 1 shown in FIG.
When roughly divided, the following device operates on the optical disc 10 as a recording medium. First, a main microprocessor unit (hereinafter referred to as a main MPU unit) 11
This is a part for integrally managing the entire playback device.

The disk drive unit 12 has a function of controlling the rotation of the optical disk 10 and a function of reading data from the optical disk 10 according to a command from the main MPU unit 11. Optical disk 1
The rotation control of 0 is performed through the servo device of the disk motor. Writing of data to the optical disk 10 and reading of data from the optical disk 10 are realized through a pickup device using optical means for handling a laser beam.

During the reproducing operation, the data processing section 13 receives the reproduced signal from the disk drive section 12, performs demodulation, performs error correction processing, and outputs the demodulated signal to the decoder section 1.
Send to 4.

The decoding section 14 receives a pack sequence as reproduction data from the data processing section 13. This pack row is provided to the separation unit 31. The separating unit 31 determines each pack, and transfers the video packet to the video decoding unit 32, the sub-picture packet to the sub-picture (SP) decoding unit 33, and the audio packet to the audio decoding unit 34, respectively.

Also, the NV pack is always ready for the main MP.
The data is sequentially stored in the internal memory 31a of the separation unit 31 so that the U unit 11 can access it.

Each decoding unit refers to a system time clock which is a reference for the time of the entire file, and according to the value, a presentation time stamp (PTS) and a decoded time stamp (DT) of each packet.
The decoding timing (reproduction time) is determined based on S). The system time clock is generated by a system time clock (STC) unit 15.

The video data decoded by the video decoding section 32 and the sub-picture data decoded by the sub-picture decoding section 33 are input to a video processing section 35 and synthesized.

The output of the video processor 35 is converted by a digital / analog (D / A) converter 36 and output as an A / V output. This output is displayed on a screen by a display (not shown).

The output of the audio decode processing unit 34 is
The signal is corrected by a sound correction unit (not shown), converted by a digital / analog (D / A) conversion unit 37, and output as an A / V output. This output is output as sound by a speaker (not shown).

The main MPU section 11 has an input section 16 such as a remote controller capable of inputting playback, stop, zoom position, zoom size, angle, etc., a display section 17, and a zoom information recording section 18 for recording zoom information. Is connected.

[0062] The zoom information recording unit 18
As shown in FIG. 12, the zoom position (center position), the zoom size, and the angle position are recorded with respect to the reproduction time based on the serial number specifying the optical disk 10, as shown in FIG. It has become so. The zoom position (center position) and the zoom size with respect to the reproduction time correspond to zoom-up processing for enlarging an arbitrary screen position to an arbitrary size.

In the above-described configuration, an example of storage of zoom information and zoom playback at the time of playback will be described with reference to the flowchart of FIG. 13 and screen display examples shown in FIGS.

That is, if the user has not previously stored the zoom information (ST1), first, the position and size (size) to be zoomed are set by the input unit 16 (S1).
T2). Then, the main CPU unit 11 stores the set zoom information in the zoom information recording unit 18 based on the manufacturing number of the optical disc 10 and the time during which the information is being reproduced (S).
T3). Then, the main CPU 11 performs zoom reproduction according to the zoom information (ST4).

If another zoom reproduction is desired, the user sets a new zoom position and size (ST2),
These are stored in the zoom information recording unit 18 (ST3).
Then, zoom reproduction is performed according to the information (ST4).

Thereafter, when the reproduction end time comes, the reproduction processing is terminated (ST6).

When the zoom reproduction of a new position and size is performed as described above, the information is saved. At this time, the zoom information set and recorded before that is not overwritten, and the zoom information recording unit 18 Will be saved.

When reproducing and reproducing one or more stored zoom information, the main CPU 11 first reads a plurality of pieces of zoom information corresponding to the current reproduction time from the zoom information recording unit 18 (ST1). It is displayed on the display unit 17. Based on this display, the user specifies the zoom information to be reproduced by the input unit 16 (ST7). Next, the main CPU section 11 reads the designated information from the zoom information recording section 18 (ST8), and performs zoom reproduction according to the information (ST4). If another zoom information is specified by the user during zoom reproduction (ST5, ST7, ST8), switching to the specified zoom reproduction is performed according to the specified zoom information (ST4).

For example, FIG. 14 (a), (b),
In the state where the standard images are reproduced in the order of (c) and (d), zoom # 1 is set as the zoom information for the image of FIG. 14B, and the image of FIG. On the other hand, when the zoom designation is released, the set contents are recorded in the zoom information recording unit 18.

As a result, an image without zoom designation in FIG. 15A, an image with zoom # 1 designation in FIG.
Images are displayed in the order of the image designated with zoom # 1 in FIG. 15C and the image without designated zoom in FIG. 15D.

When the image is reproduced from the optical disk 10 again, the set contents of the zoom are read from the zoom information recording unit 18, so that the image without zoom designation shown in FIG. An image designated with zoom # 1 in FIG. 15B, an image designated with zoom # 1 in FIG. 15C, and an image without zoom designation in FIG. 15D are displayed in this order.

Further, FIGS. 14 (a), (b), (c),
FIG. 1 shows a state in which standard images are reproduced in the order of (d).
Zoom # 1 for the image of FIG. 4A as zoom information
Are set, zoom # 2 is set as the zoom information for the image of FIG. 14B, and zoom # 1 is set as the zoom information for the image of FIG. 14C.
By canceling the zoom designation for the image (d), the setting contents are recorded in the zoom information recording unit 18.

As a result, the zoom # 1 shown in FIG.
The designated image, the image designated with zoom # 2 in FIG.
Images are displayed in the order of the image designated with zoom # 1 in FIG. 16C and the image without designated zoom in FIG. 16D.

When the image is reproduced from the optical disk 10 again, the zoom setting contents are read out from the zoom information recording unit 18, whereby the image designated by the zoom # 1 shown in FIG. The image designated with zoom # 2 in FIG. 16B, the image designated with zoom # 1 in FIG. 16C, and the image without designated zoom in FIG. 16D are displayed in this order.

Therefore, it is possible to perform zoom reproduction in which an arbitrary screen position is enlarged and reproduced to an arbitrary size, and a plurality of pieces of information relating to the zoom can be held.

As described above, the zoom information indicating the contents of the zoom set by the user is recorded based on the reproduction time of the optical disk, and when the reproduction is performed again, the zoom processing is performed based on the reproduction time and the zoom information. This is done automatically.

As a result, it is possible to perform zoom reproduction without repetition of the same operation with good usability.

Next, an example of saving zoom information and performing zoom playback during multi-angle playback will be described with reference to the flowchart of FIG. 17 and screen display examples shown in FIGS.

That is, when the user has not previously stored the zoom information (ST11), the user first specifies an angle to be zoomed by the input unit 16 (ST1).
2) Play the angle. And the zoom position
The size is set by the user (ST13). Then, the main CPU unit 11 stores the set zoom information and the angle information to be reproduced in the zoom information recording unit 18 based on the serial number of the optical disc 10 and the reproduction time (ST14). Then, the main CPU 11 performs zoom reproduction of the angle (ST15).

When the user wants to zoom at another angle, the user designates and reproduces the angle (ST11), and newly sets and stores the zoom position / size and angle information (ST12, 13).

Thereafter, when the reproduction end time comes, the main CPU section 11 ends the reproduction processing (ST17).

As described above, when performing zoom reproduction of a new position / size at another angle, the information is stored in the zoom information recording unit 18, and at that time, another angle set / recorded before that is recorded. Are not overwritten but are stored in the zoom information recording unit 18.

To reproduce and reproduce the stored zoom information at one or more angles, first, the main CPU 1
Numeral 1 reads a plurality of pieces of zoom information corresponding to the current reproduction time from the zoom information recording unit 18 (ST11), and displays the zoom information.
7 is displayed. Based on this display, the user specifies the zoom to be reproduced using the input unit 16 (ST18).
2). Next, the main CPU unit 11 reads information on the angle from the designated information from the zoom information recording unit 18 (ST19), and switches to the angle (ST2).
0).

Then, information relating to zoom is read out of the designated information, and zoom reproduction is performed according to the information (ST15). If zoom information at another angle is specified during zoom playback (ST16, 18, 19, 20),
According to the specified zoom information, zoom reproduction is performed at the specified angle (ST15).

For example, from the screen of FIG. 18A, as shown in FIG. 18B, angles # 1, # 2, and #
In a state where three types of images 3 can be reproduced, first, there is no zoom designation of angle # 1, designation of zoom # 1 of angle # 1, designation of zoom # 3 of angle # 3, designation of zoom # 2 of angle # 2 The zoom # 1 designation of the angle # 1 is set, and the set contents are recorded in the zoom information recording unit 18.

As a result, the image shown in FIG.
An image for which angle # 1 is not designated for zooming in FIG. 19B, an image for which zoom # 1 is designated for angle # 1 in FIG. 19C, and a zooming # 3 designation for angle # 3 in FIG. 19D. 19, an image designated with a zoom # 2 of angle # 2 in (e) of FIG. 19, and a zoom # 1 of angle # 1 in (f) of FIG.
The images are displayed in the order of the specified images.

Further, when the image is reproduced from the optical disk 10 again, the setting contents of the angle and the zoom are read from the zoom information recording unit 18, whereby the image shown in FIG.
From the image of FIG. 19A, an image without zoom designation of angle # 1 in FIG. 19B, and the angle # 1 of FIG. 19C.
Image designated by zoom # 1, angle # in FIG. 19 (d)
19, the image designated by the zoom # 3 designated by the angle # 2 in FIG. 19E, and the image designated by the zoom # 1 designated by the angle # 1 in FIG. 19F. .

Therefore, in multi-angle reproduction, zoom reproduction in which an arbitrary screen position is enlarged to an arbitrary size at each angle and reproduced is possible, and a plurality of pieces of information relating to the zoom can be held.

Further, in zoom reproduction including multi-angle reproduction, it is possible to switch to zoom reproduction in accordance with the specified zoom information by designating one piece of information from the plurality of held zoom information. .

Next, an example of reproduction when the angle is changed during multi-angle reproduction will be described with reference to the flowchart of FIG.
This will be described with reference to a screen display example shown in FIG. In this case, when zoom playback is not performed in the multi-angle scene, normal playback is performed as it is in the related art when the angle is switched. Also, when performing zoom playback in a multi-angle scene, when switching angles, the current zoom playback is canceled, and the angles are switched to perform normal playback.

First, when the angle is not changed (ST21), the main CPU 11 reproduces an image corresponding to the currently set angle (ST22).

Thereafter, when the reproduction end time comes, the main CPU section 11 ends the reproduction processing (ST23).

When the angle is to be changed (ST21), the main CPU 11 determines whether or not zoom reproduction is being performed (ST24). As a result of this judgment, the main C
When performing the zoom reproduction, the PU unit 11 switches the reproduction to the reproduction of the image of the designated angle after releasing the zoom (ST25, 26, 22).

As a result of the above determination, the main CPU 1
When the zoom playback is not performed (ST25), the switch 1 switches to playback of an image at a specified angle (ST26, ST2).
2).

For example, from the screen of FIG. 18A, as shown in FIG. 18B, angles # 1, # 2,
In a state where three types of images 3 can be reproduced, first, no zoom designation of angle # 1, no designation of zoom # 1 of angle # 1, no designation of zoom of angle # 2, designation of zoom # 2 of angle # 2, Angle # 1 without zoom designation is set, and the setting contents are recorded in the zoom information recording unit 18.

As a result, the image shown in FIG.
An image for which angle # 1 is not designated for zooming in FIG. 21B, an image for which zoom # 1 is designated for angle # 1 in FIG. 21C, and no zooming for angle # 2 shown in FIG. 21D. The image is displayed in the order of the image of FIG. 21 (e) designated by the zoom # 2 of angle # 2, and the image of FIG. 21 (f) designated by the angle # 1 without the designated zoom.

Therefore, in the multi-angle reproduction, when the angle is switched, the zoom reproduction specified by the user is switched to the reproduction of the size specified by the default value.

[0098]

As described in detail above, according to the present invention, it is possible to provide an optical disk reproducing apparatus which is easy to use and which can perform zoom reproduction without repeating the same operation.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic block configuration of an optical disc reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a data structure of an optical disk.

FIG. 3 is an explanatory diagram of a data structure of an optical disk.

FIG. 4 is a diagram hierarchically showing a data structure of a video object set.

FIG. 5 is a view showing a video pack of a video object unit.

FIG. 6 is an explanatory diagram of an interleave unit and an interleave block.

FIG. 7 is an explanatory view showing a pack structure.

FIG. 8 is a diagram showing a data configuration of a navigation pack (NV_PCK).

FIG. 9 is an explanatory diagram illustrating DSI general information.

FIG. 10 is an explanatory diagram for explaining seamless reproduction information.

FIG. 11 is an explanatory diagram for explaining seamless angle information.

FIG. 12 is a diagram for explaining the recorded contents of a zoom information recording unit.

FIG. 13 is a flowchart illustrating an example of storage of zoom information and zoom playback during playback.

FIG. 14 is a view for explaining the flow of reproduction.

FIG. 15 is a view for explaining the flow of reproduction.

FIG. 16 is a view for explaining the flow of reproduction.

FIG. 17 is a flowchart illustrating an example of storage of zoom information and zoom playback during multi-angle playback.

FIG. 18 is a view for explaining the flow of reproduction.

FIG. 19 is a view for explaining the flow of reproduction.

FIG. 20 is a flowchart for explaining an example of reproduction at the time of angle change during multi-angle reproduction.

FIG. 21 is a view for explaining the flow of reproduction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Optical disk reproducing apparatus 10 ... Optical disk 11 ... Main MPU section 12 ... Disk drive section 13 ... Data processing section 14 ... Decoder section 15 ... STC section 16 ... Input section 17 ... Display section 18 ... Zoom information recording section

Continued on the front page F term (reference) 5C053 FA05 FA24 GB02 GB06 GB11 GB12 GB38 HA21 JA12 KA08 KA24 5C059 KK38 LA01 MA00 ME01 PP05 PP06 PP07 RB09 RC12 RC24 SS13 SS16 SS30 UA05 5C068 HB06

Claims (4)

[Claims] A reproducing means for reproducing an image recorded on an optical disk; an instruction means for instructing a predetermined area of the image reproduced by the reproducing means to be zoomed in; Zoom-up means for zooming up a predetermined area of the image reproduced by the zoom-in means; output means for outputting an image zoomed up by the zoom-up means; and reproduction of the contents of the zoom-up by the zoom-up means from the optical disk. Recording means for recording based on the reproduction time of the means, and when the image recorded on the optical disc is reproduced by the reproduction means, the recording means based on the reproduction time of the optical disc by the reproduction means. Reading means for reading the stored zoom-up contents; Processing means for zooming up the image reproduced by the reproducing means based on the contents of the zooming up using the zooming up means and outputting the image by the output means. apparatus. 2. An optical disk reproducing apparatus for reproducing data recorded on an optical disk, wherein, when reproducing the data recorded on the optical disk, an arbitrary screen position is enlarged to an arbitrary size and reproduced. 1 processing means, recording means for recording the processing contents of the first processing means based on the reproduction time of the data, and when reproducing the data recorded on the optical disk again, the recording means An optical disc reproducing apparatus, comprising: a second processing means for reproducing an image by enlarging an arbitrary screen position to an arbitrary size with processing contents based on a reproduction time of the recorded data. 3. An optical disc reproducing apparatus for reproducing data recorded on an optical disc and selectively reproducing data for a plurality of angles, wherein when reproducing data recorded on the optical disc, a plurality of angles for the plurality of angles are reproduced. Selecting means for selecting reproduction of one of the data; and first reproducing the data by enlarging an arbitrary screen position to an arbitrary size when the data corresponding to the angle selected by the selecting means is reproduced. Processing means; recording means for recording the processing content of the first processing means and the angle selected by the selection means based on the reproduction time of the data; and data recorded on the optical disk again. At the time of reproduction, data for an angle based on the reproduction time of the data recorded in the recording means is reproduced. And an optical disc reproducing apparatus being characterized in that provided in the processing content based on the reproduction time of the data, a second processing means for reproducing an enlarged any screen position into an arbitrary size, a. 4. An optical disc reproducing apparatus for reproducing data recorded on an optical disc and selectively reproducing data for a plurality of angles, when reproducing data recorded on the optical disc, Selecting means for selecting reproduction of one of the data; and first reproducing the data by enlarging an arbitrary screen position to an arbitrary size when the data corresponding to the angle selected by the selecting means is reproduced. Recording means for recording the processing contents of the first processing means and the angle selected by the selecting means based on the reproduction time of the data, and recording a plurality of processing contents for the same reproduction time at the same angle Means for reproducing the data recorded on the optical disc again when reproducing the data recorded on the optical disc. And selecting one of a plurality of processing contents for the angle based on the reproduction time of the data, and reproducing the data by expanding an arbitrary screen position of the data for the angle to an arbitrary size with the selected processing content. An optical disc reproducing apparatus, comprising: