JP2001197426A - Image reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate user's operation at editing an image. SOLUTION: At least one image is selected as a representative image for each of scenes consisting of temporally consecutive moving image data, time position information denoting a temporal position in each scene of the representative image is generated, thumbnail images 101 are displayed divided by each scene and a time position display image 102 generated by a time information generating means is displayed. By selecting a plurality of the representative images in advance, a representative image corresponding to time is displayed depending on the movement of a scroll bar 102b, even if the state is one where the thumbnail images 101 are displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image reproducing apparatus for displaying an image contained in moving image data recorded on a disk-shaped recording medium as a thumbnail image.

[0002]

2. Description of the Related Art A disk-shaped recording medium is capable of random access, and an image editing apparatus equipped with such a disk-shaped recording medium can easily perform editing work of data such as images because of a high seek speed. can do. Therefore, an image capturing apparatus that captures an image performs an editing operation by recording the captured image on a disk-shaped recording medium.

When an editing operation is performed by such an image pickup apparatus, a captured image is displayed on a display panel and an image to be edited is selected. At this time, the image capturing apparatus displays a plurality of small images as the heading of the image stream, the first image at the position where the scene change occurs in the series of image streams. A plurality of small images displayed as headlines of an image stream on the image capturing apparatus in this way are called thumbnail images. By displaying a plurality of thumbnail images in this way, the image capturing apparatus improves the operability of the user during editing work.

[0004]

However, in the conventional image pickup apparatus, a thumbnail image is displayed as a head of an image stream. However, in order to confirm an image next to an image extracted as a thumbnail image, , It was necessary to stop displaying the thumbnail images. That is, when a thumbnail image is displayed, other images included in the image stream cannot be confirmed.

Accordingly, the present invention has been proposed in view of the above situation, and has as its object to provide an image reproducing apparatus which can improve the operability of a user when editing an image. I do.

[0006]

In order to solve the above-mentioned problems, an image reproducing apparatus according to the present invention has a reproducing means for reproducing moving image data recorded on a recording medium; An image selecting means for selecting at least one image as a representative image for each scene composed of temporally continuous moving image data; and a temporal position in each scene of the representative image selected by the image selecting means. A time position information generating means for generating time position information indicating the image, and displaying the representative image selected by the image selecting means divided for each scene and displaying the time position information generated by the time information generating means. In a state where the representative image of each scene is displayed, the representative image of the designated scene is switched and displayed, and the time position information of the representative image in the scene is changed. And a control means for controlling said display means.

In such an image reproducing apparatus, when a plurality of scenes are recorded on a recording medium, a thumbnail image divided by a representative image for each scene is displayed, and a scene of the displayed representative image is displayed. The time position information indicating the time position of is displayed.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

The present invention is applied to, for example, a camera system as shown in FIG.

This camera system records image data obtained by imaging on an optical disk and reproduces the image data in accordance with the MDDATA2 standard as shown in Table 1 below.

[0011]

[Table 1]

The camera system includes an optical system including at least an objective lens 1 for generating an image signal, and a camera processing unit 2 for performing predetermined camera processing to generate image data.
An image data processing unit 3 for performing predetermined signal processing, a media drive unit 6 for converting image data into a data format for recording on the optical disk D, and a disk recording and reproducing unit 7 for recording and reproducing on the optical disk D. Prepare.

The optical system includes at least an objective lens 1, condenses incident light, and converts the light into a CCD (Charge Coupled Device) included in a camera processing unit 2.
e) The light enters the image sensor 11.

The camera processing unit 2 includes a CCD image sensor 11 to which the imaging light from the objective lens 1 is irradiated,
A sample hold and auto gain control amplifier (hereinafter, referred to as S / H-AGC) 1 that takes out an image pickup signal from the image sensor 11 and amplifies the signal to a predetermined level.
2 and a video-to-analog converter 1 for converting the imaging signal from the S / H-AGC 12 into a digital format.
3 and a timing generator 14 for generating a synchronization signal
And a control unit 15 for controlling each unit constituting the camera processing unit 2.

The CCD image sensor 11 is, for example, a two-dimensional color image sensor in which horizontal and vertical pixels are composed of 768 pixels and 494 pixels, and converts the imaging light into primary colors (R, G, B) or complementary colors (Ye). , Cy, and Mg) into color-coded imaging signals and output to the S / H-AGC 12.

The CCD image sensor 11 generates an image signal in accordance with a synchronization signal supplied from the timing generator 14, thereby generating an image signal representing a plurality of images constituting a moving image.

The S / H-AGC 12 performs correlated double sample and hold on the image pickup signal from the CCD image sensor 11, removes reset noise and the like, controls gain, and outputs the signal to the video digital analog converter 13. .

Video / digital / analog converter 13
Converts the imaging signal from the S / H-AGC 12 into digital image data. Then, the digital / analog converter 13 supplies the image data to the image data processing unit 3.

The timing generator 14 uses the CC
A synchronization signal required for processing of the D image sensor 11, the S / H-AGC 12, and the video analog digital converter 13 is generated. For example, this synchronization signal indicates that the horizontal and vertical pixels of the CCD image sensor 11 are in the horizontal direction (H) 768.
X If generated in the vertical direction (V) 494, for example, it is generated based on a clock of 14.318 MHz (4 fsc).

The control unit 15 controls each unit constituting the camera processing unit 2 and the above-described optical system, and adjusts the amount of light incident on the CCD image sensor 11 and the like. At this time, the control unit 15 performs optical zoom by controlling and driving the objective lens 1.

The image data processing unit 3 shown in FIG.
A signal processing unit 16 that performs signal processing corresponding to color coding, a memory 17 that temporarily stores image data being processed in the signal processing unit 16, a motion compensation unit 18 that performs motion compensation on the image data, , Motion compensation unit 1
8 for temporarily storing the data of an MPEG (Moving Pic) for compressing and decompressing image data.
true Experts Group) processing unit 20
And a memory 21 for temporarily storing data of the MPEG processing unit 20, an audio processing unit 22 for performing audio signal processing, and a control unit 23 for controlling each unit constituting the video signal processing unit 3.

The signal processing unit 16 converts the image data from the video / analog
A decoding process or the like corresponding to color coding by the color coding filter of the D image sensor 11 is performed to generate luminance (Y) information and color difference (Cr / Cb) information from the image data.

The signal processing unit 16 detects image data for displaying a thumbnail image on the LCD 5 according to a control signal from the control unit 23 based on an operation input signal generated by the operation input unit 10 described later. The details of the processing performed by the signal processing unit 16 and the control unit 23 will be described later.

Using the memory 19 as a work area, the motion compensator 18 performs a process of extracting a motion vector in units of a predetermined pixel block from the image data processed by the signal processor 16 to perform motion compensation.

At the time of recording, the MPEG processing unit 20 uses the motion vector and the image data obtained by the motion compensation from the signal processing unit 16 to compress the data by the MPEG method and output it to the media drive unit 6. Also, the MPEG processing unit 20
At the time of reproduction, a process of expanding image data from the media drive unit 6 is performed.

The operation mode of the audio processing unit 22 is switched by the control unit 23. When the operation mode is the recording mode, the audio processing unit 22 functions as a data compression device for performing high-efficiency encoding compression (data compression) of the audio data. In this case, the compressed audio data supplied from the signal processing unit is expanded and then supplied to the interface unit 4.

The control section 23 controls each section constituting the image data processing section 3 based on an operation input signal from the operation input section 10.

The media drive unit 6 stores the image data in M
An MD data 2 conversion unit 24 that performs encoding / decoding according to the DDATA2 standard;
And a memory 25 for temporarily storing the image data.
MD data 1 conversion unit 26 that performs encoding / decoding according to the DDATA1 standard, and RF (radio frequency) amplifier 2 that extracts a reproduction signal reproduced from the optical disc D
7, an RF analog-to-digital converter 28 that converts a reproduction signal into digital image data, and a control unit 29 that controls each unit of the media drive unit 6.

The MD data 2 conversion unit 24 uses the memory 25 to encode the MPEG image data output from the signal processing unit 16 in accordance with the MDDATA2 standard, and supplies the encoded data to the disk recording / reproduction unit 7. The MD data 2 conversion unit 24 decodes the image data from the disk recording / playback unit 7 according to the MDDATA2 standard, and
Supply to 6.

The RF amplifier 27 includes a disk recording / reproducing unit 7
A reproduction signal is extracted from the analog signal supplied from the RF converter and output to the RF analog-to-digital converter.

The RF analog-to-digital converter 28
The reproduction signal from the RF amplifier 27 is converted into digital image data and supplied to the MD data 2 conversion unit 24 or the MD data 1 conversion unit 26.

The control section 29 controls each section constituting the media drive section 6.

The disk recording / reproducing unit 7 includes a magnetic head 30 for applying a magnetic field to the optical disk D, a spindle motor 31 on which the optical disk D is mounted and rotated, and a recording / reproducing of image data by irradiating the optical disk D with a laser beam. And a thread motor 33 for moving the optical pickup 32 in the radial direction of the optical disc D.

At the time of recording, the optical pickup 32
The optical disk D is disposed so as to face the optical disk D, and irradiates the optical disk D with a recording light amount of laser light, and heats the magneto-optical recording layer of the optical disk D to a Curie point or a compensation point or higher. At this time, the magnetic head 30 records image data by applying a magnetic field to the magneto-optical recording layer of the optical disk D that has been locally heated.

During reproduction, the optical pickup 32 irradiates the magneto-optical recording layer of the optical disc D with a reproduction light amount of laser light, detects the reflected light, generates a reproduction signal, and generates an RF amplifier. 27.

The optical pickup 32 complies with the MDDATA2 standard, and has a wavelength λ of light of 650 nm and a refractive index NA of the objective lens of 0.52.

The spindle motor 31 rotates the optical disk D at a predetermined rotation speed.

The thread motor 33 is provided for the optical pickup 3
2 is moved to the target track at high speed.

The optical disc D conforms to, for example, the MDDATA2 standard as shown in Table 1 above, and as shown in FIG. 2, a land 42 formed in a concave shape, a groove 43a formed with a wobble, and a wobble Is formed with a track pitch of about 0.95 μm. In the MDDATA2 standard, the land 42 has a recording bit having a bit length of 0.39.
It is recorded as μm / bit.

As shown in FIG. 3, this optical disc D
Grooves 43a in which wobbles are formed and grooves 43b in which wobbles are not formed are spirally formed.
As an address method of the optical disk D, an interlaced addressing method is adopted, in which the absolute address is encoded by FM modulation and biphase modulation when the groove 43a in which the wobble is formed is reproduced by the disk recording / reproducing unit 7. I have.

The camera system further includes an interface unit 4 for managing the input and output of signals to and from the outside, and a liquid crystal display (hereinafter, referred to as LCD (Liq)) for displaying images.
Uid Crystal Display). )
5 is provided.

The interface unit 4 is provided with a video / digital / analog converter 34 for converting image data into analog data.
A display control unit 35 that outputs an image signal to the LCD 5,
An output control unit 36 that outputs an image signal to an analog image output terminal 39, an analog-to-digital converter 37 that digitizes an analog audio signal, and a digital-to-analog converter 38 that converts digital audio data to analog are provided.

Video / digital / analog converter 34
Converts the digital image data from the signal processing unit 16 into an analog signal, and supplies the analog image data to the display control unit 35 and the output control unit 36.

The display controller 35 converts the analog image signal into a data string that the LCD 5 can display an image.
Output to LCD5.

The output control section 36 outputs an analog image signal to an output device such as a video deck via an analog image output terminal 39.

The analog-to-digital converter 37
It is input from a voice input device such as a microphone via a C (microphone) input terminal 40. The analog-to-digital converter 37 digitizes the analog audio signal and supplies it to the audio processing unit 22.

The digital / analog converter 38 converts the digital audio data supplied from the audio processing unit 22 and the MD data 1 conversion unit 26 into an analog signal, and outputs the analog audio data to an audio output device such as a speaker via an analog audio output terminal 41. I do.

The LCD 5 displays image data based on an output signal from the display control unit 35. In addition, LCD5
For example, a pointing device such as a touch panel including a touch sensor that detects that a user presses with a finger may be provided.

Further, the camera system is provided with an EXT-interface unit 8 for managing the mounting / removal of the optical disk D.
And a power supply 9 for supplying power to each unit, and an operation input unit 10 operated by a user.

The EXT-interface unit 8 has a sensor for detecting the attachment / detachment of the optical disk, and inputs a detection signal to the control unit 23 of the video signal processing unit 3.

The power supply 9 is composed of, for example, a battery pack, and supplies power to each unit constituting the camera system.

The operation input unit 10 includes, for example, a keyboard,
It is composed of a mouse, a touch panel, etc., and generates an operation input signal when operated by a user. The operation input unit 10 generates an operation input signal indicating display of a thumbnail image, selection of an image, scrolling, and the like when operated by a user.

Next, a recording process for taking an image and recording it on the optical disk D by the camera system configured as described above will be described.

The camera system thus configured is
When recording an image on the optical disc D, the light incident on the objective lens 1 causes the CCD image sensor 11, S / S
H-AGC12, video digital analog converter 1
3, the image data is generated, the signal processing unit 16 and the MD data 2 conversion unit 24 convert the image data into image data conforming to the MDDATA2 standard, and the disk recording / reproducing unit 7 records the image data on the optical disk D.

Next, a reproduction process for reproducing the image data recorded on the optical disk D as described above and displaying it on the LCD 5 will be described.

When reproduction is performed by the above-described camera system, the image data recorded on the optical disc D by the above-described recording process is converted by the MD data 2 conversion unit 24 into an MDDA.
The signal is decoded in accordance with the TA2 standard, temporarily stored in the memory 17, is decoded in accordance with the MPEG standard in the signal processing unit 16 to obtain uncompressed image data, and is converted into an LCD through the video / digital-analog converter 34 and the display control unit 35.
5 is displayed.

This camera system reproduces the image data recorded on the optical disk D as described above and displays a thumbnail image 101 as shown in FIG. When displaying the thumbnail image 101 on the LCD 5, the control unit 23
A scene change point included in the image data input to the signal processing unit 16 via the disk recording / reproducing unit 7 is recognized. Thereby, the control unit 23 recognizes each scene composed of temporally continuous image data.

The control unit 23 selects one image included in the recognized scene. Here, the control unit 23 selects the image immediately after the scene change point, that is, the image located at the head in the scene. Further, the control unit 23 may select an image based on another selection criterion as well as selecting the image immediately after the scene change point. This control unit 23
Makes the selected image a representative image in one scene, and outputs image data indicating the representative image from the signal processing unit 16 to the interface unit 4. Further, the control unit 23 selects a representative image for each scene recorded on the optical disc D, and outputs a plurality of representative images to the interface unit 4.

In the interface section 4, the signal processing section 1
The image data representing the representative image from No. 6 is input to the display control unit 35 via the video / digital converter 34. The display control unit 35 converts the image data from the video / digital-analog converter 34 into a predetermined display size according to the control signal from the control unit 23 to generate a small image for each scene, and generates a small image for each scene. Generates image data obtained by dividing one screen. In the display control unit 35, the data indicating the generated thumbnail image is represented by L
By outputting the image data to the CD 5, as shown in FIG. 4, the image data representing the representative images 101 A to 101 I corresponding to the nine scenes is output from the signal processing unit 16 to the interface unit 4, and the representative image 101 A to the representative image The thumbnail image 101 divided into small images 101I is displayed.

In the camera system capable of displaying the thumbnail image 101 as described above, the thumbnail image 101 as shown in FIG.
Can be presented for each scene. In such a camera system, by displaying the thumbnail image 101, information for the user to perform the editing process can be provided. That is, the user refers to the thumbnail image 101 displayed on the LCD 5 and determines the reproduction of each scene, the insertion of another scene or image between the scenes, the search of the scene requiring the processing, the reproduction order, and the like. , The operation input unit 10 can be operated.

The control unit 23 generates time position information indicating the time position of the representative image in the scene, and outputs the time position information to the interface unit 4 via the signal processing unit 16. The display control unit 35 includes the video digital analog converter 3
The time position information is input via the LCD 4, and outputs data for displaying the time position information below the thumbnail image 101 to the LCD 5, for example. Thereby, in the camera system, as shown in FIG.
Scroll bar 102b and end time axis button 102c
The time position display image 102 composed of
1 is displayed at the bottom.

When such a time position display image 102 is displayed, the scroll bar 102b or the end time axis button 102c is operated to the end in response to the operation input signal from the operation input unit 10, so that the scene A Are displayed as the representative image 101A. At this time, the control unit 23 selects the last image in the scene A so as to display the last image in the scene A, generates time position information, and sends the time position information to the display control unit 35 from the signal processing unit 16. The signal processing unit 16 is controlled to output.
The display control unit 35 receives image data indicating the last image from the signal processing unit 16 and display position information on the image data, and uses the image data and the display position information to generate a thumbnail image as shown in FIG. 101 and a time position display image 102 are displayed.

Next, a processing procedure for controlling the display of the thumbnail image 101 and the time position display image 102 in accordance with an operation input signal generated by operating the operation input unit 10 by the user will be described with reference to FIG. explain.

In the above-described camera system, when the user operates the operation input unit 10, an operation input signal for displaying a thumbnail image is input to the image data processing unit 3. In response, the control unit 2 of the image data processing unit 3
3, the thumbnail image 101 and the time position display image 1
02 is started.

First, in step S1, the control unit 23
Determines whether the thumbnail image 101 is displayed on the LCD 5 or not. The control unit 23 controls the thumbnail image 101
When it is determined that is displayed, the process proceeds to step S2, and when it is determined that the thumbnail image 101 is not displayed, the process proceeds to step S3. In step S3, when the power is turned off, the process ends. When the power is not turned off, the process returns to step S1 again and repeats the determination in step S1 until the thumbnail image 101 is displayed. At this time, the control unit 23, the signal processing unit 16 and the display control unit 35 select a representative image from each scene as described above in accordance with the operation input signal for displaying the thumbnail image from the operation input unit 10. Thumbnail image 10
1 is displayed.

In the next step S2, the control unit 23
In the state where the thumbnail image 101 is displayed, the user operates the operation input unit 10 to determine, for example, a scene specified as a target of the editing process.

In the next step S4, the control unit 23
Is designated by controlling the color of the frame area 111 of the representative image 101A of the scene A to be changed when the scene A is designated as shown in FIG. The user is informed that the current scene is scene A.

In the next step S5, the control unit 23
Determines the temporal position of the image displayed as the representative image of the scene specified in step S2 described above.
The control unit 23 controls the signal processing unit 16 to generate a temporal position of the representative image as time position information and output the generated time position information to the display control unit 35.

In the next step S6, the control unit 23
Controls the display control unit 35 to display the time position display image 102 using the time position information output from the signal processing unit 16 to the display control unit 35 in step S5 described above.

In the next step S7, the control unit 23
Determines whether to move the scroll bar 102b in response to an operation input signal from the operation input unit 10, and proceeds to step S8 when the scroll bar 102b is moved according to the operation input signal, and enters a standby state when not moved. .

In the next step S8, the control unit 23
Determines the amount of movement of the scroll bar 102b according to the operation input signal of the operation input unit 10,
A process of converting the position after the movement of b into a position on the time axis is performed.

In the next step S9, the control unit 23
Selects the image in the scene A closest to the position on the converted time axis as the representative image in accordance with the result converted in step S8 described above. The control unit 23 controls the signal processing unit 16 to output the image data indicating the selected representative image and the time position information about the representative image to the display control unit 35, and returns to step S1. Accordingly, even when the thumbnail image 101 is displayed, the control unit 23 responds to the input of the operation input signal for moving the position of the scroll bar 102b on the screen,
A representative image corresponding to the position of the scroll bar 102b after the movement is displayed.

In such a camera system, for example, a time position display image 102 of a representative image included in a designated scene is displayed together with a thumbnail image 101, and an operation for moving a scroll bar 102b from the operation input unit 10 is performed. Since the representative image of each scene can be changed according to the input signal, a plurality of images included in each scene can be displayed while the thumbnail image 101 is displayed.

In this camera system, for example, when performing an editing process for inserting another scene after the scene A, the editing process may be performed after confirming the image at the end of the scene A. In such a case, the camera system
By selecting both the image located at the beginning and the image located at the end of the scene A as the representative image and outputting the selected image from the signal processing unit 16 to the display control unit 35, it is easy to refer to the images at the beginning and end, Operability can be improved.

As described above, when the images located at the beginning and end of the scene are output to the display control unit 35 as the representative images, when the leading time axis button 102a of the time position display image 102 is pressed, The small image located at the head is displayed (FIG. 5), and the end time axis button 102c is displayed.
Is pressed, a small image located at the end of the scene is displayed (FIG. 6).

At this time, the display control unit 35
When the leading representative image shown in FIG. 8A is switched to the last representative image shown in FIG. 8B, a mark 121 indicating the last representative image may be displayed. Therefore, in this camera system, the first image and the last image in the scene can be instantaneously switched and displayed.

Further, in this camera system, when only the first and last images in the scene are not enough, an appropriate number of intermediate images included in the scene are selected, and the signal processing unit 16 controls the display control unit 35. , A plurality of images in the scene can be displayed together with the time position display image 102 of the designated scene while the thumbnail image 101 is displayed. As described above, when a plurality of images in the scene are output to the display control unit 35 as the representative images, the temporal position of the top time axis button 102a, the scroll bar 102b, or the end time axis button 102c of the time position display image 102 is changed. Is moved, the representative images can be sequentially displayed as small images. Therefore, in this camera system, the whole image of one scene can be easily displayed, and the operability for the user can be improved by displaying the images in the scene while the thumbnail image 101 is displayed.

Furthermore, in this camera system, when a certain scene is processed or edited, a representative image of the processed and edited scene is newly selected and output from the signal processing unit 16 to the display control unit 35. Thumbnail image 10
1 is displayed.

In this camera system, the case where the thumbnail image 101 is displayed and the time position display image 102 is displayed for the representative image selected from the representative images of the scenes constituting the thumbnail image 101 has been described. Time position display image 10 for each scene
2 may be displayed. At this time, the control unit 23 controls the signal processing unit 16 to output the time position information on the representative image of each scene to the display control unit 35.

The present invention is not limited to the above-described camera system, but may also be applied to an optical disk recording / reproducing apparatus which receives image data from the outside and records and reproduces the data on the optical disk D as shown in FIG. Applicable.

The processing at the time of reproduction in this optical disk recording / reproducing apparatus will be described.

When a signal recorded on the optical disk D is reproduced, image data is read out by the optical pickup 51, photoelectrically converted, and then converted to digital image data by the analog / digital converter 53 via the RF amplifier 52. Next, AGC (Automatic Ga)
in Control) 54 and EQPLL 55,
A sampling clock is generated, and reproduced data is generated through a Viterbi decoder 56, and RLL (1, 7) is generated by a decoding unit 57.
Decrypt by the method. The decoded signal is expanded to a memory 58 via a data bus, and is subjected to an ECC (Error Coding).
error code) The decoding / encoding unit 59 corrects the error in units of error correction blocks, and further performs a descrambling process and an EDC decoding in a reproduction processing unit 60. As a reproduced image data, a clock signal generated in a clock generation unit 61 The information is displayed on an external display device or the like in synchronization.

Next, the recording process of the optical disk recording / reproducing apparatus will be described.

In this optical disk recording / reproducing apparatus, when image data to be recorded on the optical disk D is input from the outside, the recording processing section 62 performs scramble processing and EDC encoding processing, and writes the data into the memory 58 via the data bus. . Next, the ECC decoding / encoding unit 59 adds an error correction parity, performs RLL (1, 7) modulation in the modulation unit 63, and supplies the modulated data to the magnetic head 65 via the head driver 64. Further, a clock signal is supplied from the modulation unit 63 to the laser driver 66. The laser driver 66 uses the optical disk D
A signal for controlling the amount of light given to the optical pickup 51
Supply to

Next, the signal processing of the servo system for controlling the drive of the optical pickup 51 and the optical disk D when performing the recording and reproduction as described above will be described.

In this optical disk recording / reproducing apparatus, when performing recording / reproducing, a matrix amplifier 67 extracts a servo error signal based on a signal from the optical pickup 51,
The digital servo processor 68 performs phase compensation and gain / target value setting. Next, the digital servo processor 68
Outputs a control signal for controlling the light irradiation position to the pickup driver 69 based on the servo error signal from the matrix amplifier 67. Pickup driver 69
Outputs a pickup drive signal to the optical pickup 51, and performs fine adjustment of tracking of the optical pickup 51.

The matrix amplifier 67 converts the signal from the optical pickup 51 into a band-pass filter 70.
To extract the wobble signal. ADIP (Ad
dress In Pregroove decoder 71
Decodes the wobble signal and supplies an address signal to the system controller 72. The track determination 73 is
Based on the wobble signal, a track discrimination signal, which is a result of track discrimination as to whether a wobble has been formed or not, is supplied to the system controller 72.

The system controller 72 generates an address control signal based on the address signal and the track discrimination signal, and outputs the generated signal to the digital servo processor 68. The digital servo processor 68 generates a driver control signal based on the address control signal and outputs it to the pickup driver 69. Pickup driver 69
Outputs a drive signal for adjusting the tracking of the optical pickup 51 to the actuator and the sled motor 74 to drive the actuator and the sled motor 74.

The optical disk recording / reproducing apparatus converts the wobble signal generated from the band pass filter 70 into a CLV (Constant Linear Vel).
(Ocity) A rotation control signal for controlling the linear velocity of the optical disk D by the processor 75 is output to the digital servo processor 68. The digital servo processor 68 outputs a driver control signal to the pickup driver 69 based on the rotation control signal. Pickup driver 69
Outputs a signal to the spindle motor 76 for keeping the linear velocity of the optical disk D at a predetermined velocity.

In the above-described optical disk recording / reproducing apparatus, when a thumbnail image is displayed by operating the operation input section 77, the representative image of each scene is selected by the reproduction processing section 60 and the time position of the representative image is selected. Generates information and outputs it to an external display device. Thereby, similarly to the above-described camera system, the thumbnail image 101 and the time position display image 102 can be displayed.

[0091]

As described in detail above, when a plurality of scenes are recorded on a recording medium, the image reproducing apparatus according to the present invention displays a thumbnail image divided by a representative image for each scene. In addition, time position information indicating the temporal position of the displayed representative image in the scene is displayed, so that an outline of each scene can be presented to the user, and the operability of the user when editing an image or the like. Can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a camera system to which the present invention has been applied.

FIG. 2 is an enlarged plan view of an optical disc compliant with the MDDATA2 standard.

FIG. 3 is an enlarged plan view illustrating an address method of an optical disk conforming to the MDDATA2 standard.

FIG. 4 is a diagram illustrating an L included in a camera system to which the present invention is applied.
FIG. 3 is a diagram showing thumbnail images displayed on a CD.

FIG. 5 is a diagram illustrating an L included in a camera system to which the present invention is applied.
It is a figure showing a time position display picture about a thumbnail picture and a representative picture displayed on CD.

FIG. 6 is a diagram illustrating an L included in a camera system to which the present invention is applied.
It is a figure showing other examples of a time position display picture about a thumbnail picture and a representative picture displayed on CD.

FIG. 7 is a diagram for describing a processing procedure when controlling display of a thumbnail image and a time position display image by a camera system to which the present invention has been applied.

FIG. 8A is a diagram showing a representative image located at the beginning of a scene, and FIG. 8B is a diagram showing a representative image located at the end of the scene.

FIG. 9 is a block diagram illustrating a configuration of an optical disk recording / reproducing apparatus to which the present invention has been applied.

[Explanation of symbols]

1 camera processing unit, 3 image data processing unit, 5 LC
D, 6 media drive unit, 7 disk recording / playback unit, 10 operation input unit, 16 signal processing unit, 101 thumbnail image, 102 time position display image

Continued on the front page F-term (reference) 5C052 AA03 AB06 AC08 BB02 BB03 CC03 CC06 CC11 CC12 CC20 DD06 DD08 EE02 EE03 EE06 5C053 FA05 FA06 FA14 FA23 GA01 GB09 GB11 GB15 GB19 GB37 HA29 HA30 HA33 JA12 JA26 KA01 KA08 KA14 KA18 LA36 KK38 LA01 LB18 MA00 NN01 NN28 PP04 PP16 RC02 RC32 RF04 RF21 SS14 SS19 SS30 UA02 UA05 UA08 UA33

Claims (1)

[Claims] 1. A reproducing means for reproducing moving image data recorded on a recording medium, and at least one image is represented by a representative image for each scene composed of temporally continuous moving image data reproduced by the reproducing means. An image selection unit that selects the image as the first image, a time position information generation unit that generates time position information indicating a time position in each scene of the representative image selected by the image selection unit, and a time position information generation unit that is selected by the image selection unit. Display means for displaying the representative image divided by each scene, and displaying the time position information generated by the time information generating means, and displaying the representative image of each scene while displaying the representative image of each scene. Control means for controlling the display means so as to switch and display the image and change the time position information of the representative image in the scene. .