KR20050058641A - Method for editing a thumbnail picture in optical disc device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for editing a reduced image in an optical disc apparatus, wherein an optical disc apparatus such as a DVD-Recorder is used to read and reproduce data recorded on an optical disc such as a rewritable DVD-RW. After capturing a partial image of the original picture to be reproduced and output, zoom in on a predetermined size, and converting the zoomed partial image into a reduced image representing the original picture, and converting the reduced image. And by generating navigation information corresponding to the downscaled image and recording the same on the optical disc, during the reproduction or still operation of the optical disc, a part of the original picture desired by the user can be easily edited as a reduced size of a predetermined size. It is a very useful invention that allows storage management.

Description

{Method for editing a thumbnail picture in optical disc device}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for editing a reduced image in an optical disk device, and more particularly, to a part of a video in an original picture reproduced and output in an optical disk device such as a DVD-Recorder or the like. A method for editing a reduced image in an optical disk device for editing and recording in a picture.

In general, optical discs capable of recording and reproducing high-quality audio data and high-definition video data for a long time, for example, rewritable DVDs (DVD-RW), have been widely spread and commercialized, and also recorded on the rewritable DVDs Optical disc devices capable of reproducing or recording data, such as DVD-Recorders, have been developed and commercialized.

On the other hand, in the optical disc device, for example, a DVD recorder, when a rewritable DVD is inserted and seated in the device, the navigation information recorded in the lead in area (LIA) of the DVD is read and stored in the memory. Then, with reference to the navigation information, a series of data recording or reproducing operations requested by the user are performed.

In addition, the DVD recorder includes list information and a reduced image representative of each title or chapters to allow a user to quickly access titles or chapters recorded separately on the rewritable DVD. In this case, the menu graphic image is outputted and displayed on the screen of an external connection device such as a television.

When the user selects and designates any desired title or chapter by referring to the reduced image displayed on the menu graphic image, the DVD recorder searches for a start recording position of the corresponding title or chapter. Since the data reproducing operation or the recording operation for recording new data is performed, the user can easily search for the start recording position of the title or chapter desired by the user.

However, in the general optical disc device, when the reduced image is generated and recorded as described above, since the entire image of the original picture is reduced and converted to a predetermined size, only some characteristic images included in the original picture can be selectively converted to the reduced image. Since the entire picture of the original picture is reduced in size, there is a problem that only a part of the characteristic picture desired by the user cannot be accurately identified.

Accordingly, the present invention was created to solve the above problems, and in an optical disc device such as a DVD-Rocrder, a play operation or still operation of an optical disc such as a rewritable DVD-RW is performed. To provide a method of editing a reduced image in an optical disc device for easily editing and storing and managing only a portion of images in an original picture desired by a user while performing a still operation. It is.

In accordance with an aspect of the present invention, a method for editing a reduced image in an optical disk device includes: capturing a part of an image of an original picture and zooming in to a predetermined size; Converting the zoomed partial image into a reduced image representative of the original picture; And three steps of generating the converted reduced image and navigation information corresponding to the reduced image and recording the same on the optical disk.

Hereinafter, a preferred embodiment of a method for editing a reduced image in an optical disk device according to the present invention will be described in detail with reference to the accompanying drawings.

First, the reduced image editing method according to the present invention can be applied to various optical disc devices such as a DVD recorder. For example, the DVD recorder includes an optical pickup 11 and a VDR (Video) as shown in FIG. Disc Record) system 12, the microcomputer 13, the menu graphics generating unit 14, the zoom capture unit 15, the reduced image generating unit 16, and the memory 17 may be configured to include.

On the other hand, the microcomputer 13 operates the VDR system 12 to perform a reproducing operation of reproducing the data of the rewritable DVD 10 inserted and seated in the apparatus, or in a still operation state, the user When requesting the reduced image editing operation, as shown in FIG. 2, the original picture Original_Picture #k displayed on the screen is displayed as a still image.

In the micom 13, when the user sets a part of the image in the original picture displayed as the still image as a zoom area by using a remote controller or a mouse (Step1) The operation of controlling the zoom capturer 15 to capture only a part of the image in the zoom area and to perform a zoom capture operation to enlarge the image to a predetermined size (Step 2).

In addition, the microcomputer 13 operates the reduced image generating unit 16 to control a portion of the image zoomed in to the predetermined size to a predetermined size of the reduced image or a reduced image that the user arbitrarily designates. The size is reduced and converted to various sizes (Step 3).

Thereafter, the microcomputer 13 operates the VDR system 12 to control the VDR system 12 so as to separately record and allocate the reduced image in a specific area of the DVD, for example, a data area. In addition to recording, navigation information for controlling reproduction of the reduced image is recorded and managed in a lead-in area (Step 4).

Meanwhile, as illustrated in FIG. 3, navigation information for controlling reproduction of the reduced image may be recorded in program chain information (PGCi) defined by a rewritable DVD (RW-RW). For example, in the spare area (Reserved) of the first 1 byte of the program chain general information (PGC_GI: PGC General Information) recorded in the program chain information (PGCi), an update is made by using a zoom function in the disk. Identification information (eg, ZOOM_DET) indicating whether there is a reduced image may be recorded and managed.

That is, when the identification information ZOOM_DET is recorded with a value of '0', it indicates that there is no reduced image updated by using the zoom function in the rewritable DVD, and the identification information ZOOM_DET is '1'. If the value is recorded as, the rewritable DVD indicates that there is a reduced image updated by using the zoom function.

In the program information (PGi: PG Information) recorded in the program chain information PGCi, zoom information on a reduced image updated by using a zoom function is stored in a reserved area of the first 1 byte. Records are maintained.

For example, zoom magnification information of a reduced image is recorded in the first and second bits b0 and b1. When the first and second bits b0 and b1 are '00', the entire screen is displayed. Represents a maximum zoom factor corresponding to 2, and when the first and second bits b0 and b1 are '01', the zoom factor is twice (x2) and the first and second bits b0 and b1. Is 10, a zoom factor of 4x (x4) is shown.

In addition, horizontal position information (Horizontal_Position) of the reduced image is recorded in the third to fifth bits b2, b3 and b4, and sixth to eighth bits b5, b6 and b7 are recorded in the third to fifth bits b2, b3 and b4. Vertical position information (Vertical_Position) can be recorded and managed.

On the other hand, the navigation information for controlling the reproduction of the reduced image is included in a Play List Search Pointer Table (PL_SRPT) defined in a rewritable DVD (RW-RW) as shown in FIG. It may be recorded, for example, the first 1 byte of the play list search pointer table information (PL_SRPTI: Play List Search Pointer Table Information) recorded in the play list search pointer table (PL_SRPT), the reserved area (Reserved) In the disc, identification information (eg, ZOOM_DET) indicating whether there is an updated reduced image using the zoom function in the disc may be recorded and managed.

That is, when the identification information ZOOM_DET is recorded with a value of '0', as described above, the rewritable DVD indicates that there is no reduced image updated using the zoom function, and the identification information ZOOM_DET ) Is recorded as a value of '1', it indicates that the rewritable DVD has a reduced image updated by using the zoom function.

In the play list search pointer (PL_SRP: Play List Search Pointer) recorded in the play list search pointer table PL_SRPT, the first 1 byte of reserved area is reduced by using the zoom function. Zoom information for the image is recorded and managed.

For example, as described above, zoom magnification information for the reduced image is recorded in the first and second bits b0 and b1, and the first and second bits b0 and b1 are '00'. , The maximum zoom factor corresponding to the entire screen, and when the first and second bits b0 and b1 are '01', the zoom factor is twice (x2), and the first and second bits. When (b0, b1) is '10', the zoom magnification is 4 times (x4).

In addition, horizontal position information (Horizontal_Position) of the reduced image is recorded in the third to fifth bits b2, b3 and b4, and sixth to eighth bits b5, b6 and b7 are recorded in the third to fifth bits b2, b3 and b4. Vertical position information (Vertical_Position) can be recorded and managed.

Accordingly, the user having the above-described DVD recorder can select and edit only a part of the videos in the original picture desired by the user as a reduced image and record and manage the recorded image on the rewritable DVD.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The reduced image editing method of the optical disk device according to the present invention constructed and constructed as described above reads data recorded on an optical disk such as a rewritable DVD-RW in an optical disk device such as a DVD-Recorder. During playback, after capturing a partial image of the original picture to be reproduced and output, zooming in to a predetermined size, and converting the enlarged partial image to a reduced image representing the original picture, By generating the converted reduced image and navigation information corresponding to the reduced image and recording the same on the optical disk, a part of the image in the original picture desired by the user during the playback operation or the still operation of the optical disk is reduced. It is a very useful invention that can be easily edited and stored and managed.

1 illustrates a configuration of an optical disk device applied to a method of editing a reduced image according to the present invention.

2 illustrates a process of editing a reduced image in an optical disk device according to the present invention;

3 illustrates navigation information generated and recorded in a reduced image editing process according to a first embodiment of the present invention;

4 illustrates navigation information generated and recorded in a reduced image editing process according to a second embodiment of the present invention.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: VDR system 13: micom

14: menu graphics generating unit 15: zoom capture unit

16: thumbnail generation unit 17: memory

Claims (6)

Capturing a partial image of the original picture and zooming in to a predetermined size; Converting the zoomed partial image into a reduced image representative of the original picture; And And converting the converted reduced image and the navigation information corresponding to the reduced image and recording the same on the optical disk. 3. The method of claim 1, And the navigation information is recorded in the program chain information (PGCi) recorded and managed on the optical disc. The method of claim 2, Among the program chain information, the program chain general information PGC_GI includes identification information for identifying whether a reduced image updated by the zoom function is recorded in the disc, and the reduced information is included in the program information PGI. And zoom position information and size information of the reduced image. The method of claim 1, And the navigation information is recorded in a play list search point table (PL_SRPT) recorded and managed on the optical disk. The method of claim 4, wherein Among the playlist search point tables, the playlist search point table information PLSRPTI includes identification information for identifying whether a reduced image updated by the zoom function is recorded in the disk, and the playlist search point PL_SRP is recorded. ) Is recorded including the zoom position information and the size information of the reduced image. The method of claim 1, The optical disc is a rewritable DVD (DVD-RW), and the optical disc device is a DVD recorder (DVD-Recorder).