KR20030038852A - Apparatus for recoding and displaying of book-mark information using the capture of image, and its methods - Google Patents

Abstract

PURPOSE: A system and method for recording/displaying bookmark information by capturing a still picture are provided to capture and compress a still picture to record the still picture as bookmark information when a video tape is played and previously confirm a picture to be reproduced through the recorded bookmark information. CONSTITUTION: A bookmark recording and display setting unit inputs a signal for recording bookmark information of a video tape being played and a signal for displaying the bookmark information. A bookmark controller controls operations of storing the bookmark information and displaying the stored bookmark information through extraction of a still picture, and controls movement of play position of the video tape. A bookmark recording and displaying unit(160) extracts a still picture from video and audio signals of the video tape to compress the still picture, synthesizes the compressed still picture with auxiliary information of bookmark to generate and store bookmark information, extracts the stored bookmark information, and converts the extracted bookmark information into an analog form to display the bookmark information. A bookmark information storage unit stores the bookmark information. A bookmark display displays the compressed still picture and the bookmark information stored in the bookmark information storage unit.

Description

Apparatus for recoding and displaying of book-mark information using the capture of image, and its methods}

The present invention relates to a device for recording / displaying book mark information using a capture of a still picture and a method thereof, and more particularly, to a book mark information together with auxiliary information inputted by capturing and compressing a still picture during playback of a videotape. A device for recording / displaying book mark information using a capture of a still image for retrieving and retrieving a screen to be reproduced through the recorded book mark information in advance, and a method thereof and a program for realizing the method. A computer readable recording medium for recording thereon.

In general, a VCR (Video Cassette Recorder) is a device used for recording and playing back a television signal, playing back a recorded video tape, and so on. In recent years, a user may repeatedly watch a specific section of a video tape for language learning. Is being released. That is, in order to retrieve the image information recorded on the video tape as quickly as possible, the position of the tape is determined by the control pulse signal during playback, and in particular, when the section is repeated, the repeated playback section is set by moving to the position identified by the control pulse signal. The method of counting the control pulse signal in the inside is used.

In addition, the BookMark function used to search for a specific recording portion in the playback tape records the index number of the bookmarked portion together with the position information of the tape by the control signal.

However, the conventional book mark can only be identified by the user by the index number set for the search. Therefore, if a large portion of the book mark is placed, the book mark is not classified by the image content. Since all the search must be performed, there is a problem that the function of the book mark for the purpose of quick search is reduced.

Accordingly, the present invention has been made in order to solve the above problems, and captures and reduces still images at the time of playing the videotape and records them by contents, and checks the bookmarked still images on the screen to search for the contents of the tapes. It is an object of the present invention to provide a recording / display device for book mark information using a capture of a still image, and a computer readable recording medium having recorded thereon a method and a program for realizing the method.

1 is a configuration diagram of an apparatus for recording and displaying book mark information using a still image capture according to an embodiment of the present invention.

FIG. 2 is a detailed configuration diagram of an embodiment of a book mark recording and display module shown in FIG.

FIG. 3 is a detailed configuration diagram of one embodiment of the book mark recording processing unit shown in FIG. 2; FIG.

4A and 4B show on a OSD screen the recording and display of book mark information according to the invention;

5 is a flow chart of an embodiment of a method for recording book mark information using the capture of a still image according to the present invention;

6 is a flowchart illustrating a method for displaying book mark information using a capture of a still image according to the present invention.

※ Explanation of code for main part of drawing

100: V-al main body 110: system controller

120: control head 130: deck drive unit

140: playback head 150: playback signal processing unit

160: book mark recording and display module 170: OSD unit

180: memory 190: remote control

An apparatus of the present invention for achieving the above object is a recording and display device for book mark information in a V-Cell system, the device for displaying a signal and book mark information for recording the book mark information of the video tape being played back. Book mark recording and display setting means for inputting a signal; Controlling the display operation of the book mark information and the display of the stored book mark information through the extraction of the still picture by the signal provided from the book mark recording and display setting means, and the playback position of the video tape by the selection of the displayed book mark information Book mark control means for controlling movement; A still picture is extracted from a video and audio signal of a video tape being reproduced by a control signal for recording provided from the book mark control means, and digitally compressed, and the compressed still picture is synthesized with auxiliary information of an input book mark. To generate and temporarily store book mark information, extract the stored book mark information by a control signal for display provided from the book mark control means, and convert the extracted book mark information into an analog form for display. Book mark recording and displaying means; Book mark information storage means for storing book mark information synthesized in the book mark recording and display means by a control signal provided from the book mark control means; And book mark display means for displaying a compressed still picture for inputting auxiliary information from said book mark recording and display means and book mark information stored in said book mark information storage means.

On the other hand, the method of the present invention includes a book mark information recording method using capture of a still image applied to a book mark information recording apparatus, comprising: a first step of setting a book mark recording mode during reproduction of a video tape; A second step of storing position information of a video tape being played back by the set book mark recording mode and extracting a still picture corresponding to the stored position information; A third step of pausing the playback operation of the videotape, converting, compressing, and temporarily storing the still picture extracted in the second step into a digital form; A fourth step of requesting input of book mark assistance information by outputting the temporarily stored still picture of the compressed form on a screen; A fifth step of generating and storing book mark information by synthesizing the temporarily stored still picture and the inputted auxiliary information in step 3 when auxiliary information corresponding to the compressed still picture output on the screen is input; And a sixth step of releasing pause of playback in step 3 to perform playback of the video tape.

Another method of the present invention is a display method of book mark information using capture of a still image applied to a display device of book mark information, comprising: a first step of setting a book mark display mode during playback of a videotape; A second step of pausing the playback operation of the videotape and requesting to input auxiliary information of the book mark when the previously stored book mark information is confirmed by the set book mark display mode; A third step of extracting and displaying the stored book mark information according to whether the auxiliary information of the requested book mark is input; And if the displayed book mark information is selected, checking the position information corresponding to the selected book mark information, and moving the video tape to the identified position information to perform a playback operation. .

On the other hand, the present invention provides a first function of setting a book mark recording mode during playback of a videotape in a recording medium readable by VSI having a processor for recording book mark information using capture of still images. ; A second function of storing position information of a video tape being played back by the set book mark recording mode and extracting a still picture corresponding to the stored position information; A third function of temporarily reproducing the video tape, converting and compressing the still picture extracted by the second function into a digital form, and temporarily storing the video; A fourth function of requesting input of book mark assistance information by outputting the temporarily stored still picture of the compressed form on a screen; A fifth function of generating and storing book mark information by synthesizing the temporarily stored still picture and the inputted auxiliary information in the third function when auxiliary information corresponding to the compressed still picture output on the screen is input; And a computer-readable recording medium having recorded thereon a program for realizing a sixth function of releasing pause of playback in the third function to perform playback of a videotape.

In addition, the present invention provides a first function of setting a book mark display mode during playback of a video tape in a recording medium readable by a VSI equipped with a processor for displaying book mark information using capture of a still image. ; A second function of pausing the playback operation of the videotape and requesting input of the auxiliary information of the book mark when the previously stored book mark information is confirmed by the set book mark display mode; A third function of extracting and displaying the stored book mark information according to whether the auxiliary information of the requested book mark is input; And when the displayed book mark information is selected, confirming the position information corresponding to the selected book mark information, and recording a program for realizing a fourth function of performing a playback operation by moving the video tape to the checked position information. Provide a computer readable recording medium.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a preferred embodiment of a recording / displaying apparatus for recording book mark information and a method thereof using a still image capture according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an apparatus for recording / displaying book mark information using capture of a still image.

As shown in FIG. 1, the recording and display apparatus of the book mark information includes a system controller 100, a control head 120, a deck driver 130, a play head 140, a play signal processor 150, and a book mark. And a recording and display module 160, an OSD unit 170, and a memory 180.

In addition, the book mark recording and display apparatus is provided with a remote controller 190 for transmitting a setting signal for the book mark. The remote controller 190 includes a book mark recording button B1 and a book mark display button B2.

The system controller 110 recognizes the playback video tape inserted in the tech, controls the drive of the deck driver 130, and processes the video and audio signals of the video tape read out from the playhead 140. Control the operation of 150. The playback signal processor 150 processes the video and audio signals read out from the playback head 140 by the control signal of the system controller 110 to the book mark recording and display module 160 and the OSD unit 170. send.

That is, when the record signal of the book mark by the book mark recording button B1 is input from the remote controller 190, the system controller 110 may select one of the video and audio signals processed by the reproduction signal processor 150. Control is performed so that the still picture of the frame is transmitted to the book mark recording and display module 160. In addition, the system controller 110 reads out and stores a control pulse signal corresponding to a still image transmitted to the book mark recording and display module 160 through the control head 120.

In more detail, the book mark recording and display module 160 receiving the still picture of one frame from the reproduction signal processor 150 performs the following operation for recording the book mark information including the still picture.

First, the book mark recording and display module 160 converts a still picture received from the reproduction signal processing unit 150 into digital data, compresses still picture information that is the converted digital data, and stores the compressed still picture. Temporarily store data. At this time, the compression ratio of the still image is preferably about 1/64 of the existing output screen. In addition, the book mark recording and display module 160 converts the temporarily stored still picture in the compressed form into an analog form and outputs the converted still image to the OSD unit 170.

In this case, the user may check the compressed still image output through the OSD unit 170. Accordingly, the user checks the compressed still picture and inputs a classification name and title according to the still picture through the remote controller 190.

Then, the system controller 110 transmits the information according to the classification name and title input through the remote controller 190 to the book mark recording and display module 160.

Then, the book mark recording and display module 160 generates the data, that is, the book mark information appended with the classification name and the title information received from the system controller 110 to the temporarily stored still picture data, and the generated book mark information. To the memory 180.

At this time, the system controller 110 stores the position information on the video tape on which the still picture is recorded among the book mark information stored in the memory 180.

Here, the book mark information stored in the memory 180 is classified and stored in the order of setting the classification name and the book mark input by the user. On the other hand, the system controller 110 controls the deck drive unit 130 and the playback signal processing unit 150 during the process of recording the book mark information to stop the playback of the video tape.

Now, the display operation of the book mark information will be described in detail.

First, when a signal provided from the book mark display button B2 of the remote controller 190 is input to the system controller 110, the system controller 110 checks the presence or absence of bookmark information previously stored in the memory 180. When the book mark information is confirmed, the OSD unit 170 displays characters for requesting the user to input the classification name of the bookmark information.

When the classification name is input through the remote controller 190 or the input means within the set time, the system controller 110 transmits the book mark information including the classification name to the book mark recording and display module 160.

Accordingly, the book mark recording and display module 160 reads and signals only the book mark information including the classification name input from the book mark information stored in the memory 180 by the book mark information including the received classification name. Output through the OSD unit 170.

The book mark recording and display module 160 reads and signals the book mark information stored in the memory 180 in an index order by a book mark signal that does not include the received classification name and outputs the signal through the OSD unit 170. do.

Therefore, when the user who confirms the book mark information displayed on the OSD unit 170 requests execution of a specific book mark through the remote controller 190, the system controller 110 may transmit a video tape corresponding to the currently selected book mark information. Check the position information of the, and controls the deck drive unit 130 to move the video tape inserted in the deck to the section of the position information.

FIG. 2 is a detailed block diagram of an embodiment of a book mark recording and display module shown in FIG.

As shown in FIG. 2, the book mark recording and display module 160 includes a still image extracting unit 210, an A / D converter 220, a book mark recording processing unit 230, and a book mark display processing unit 240. And a D / A converter 250.

The still image extracting unit 210 operates under the control of the system controller 110 to extract the image screen reproduced by the reproduction signal processing unit 150, that is, the still image information, and extracts the extracted still image information into A / A. Transfer to D converter 220. The A / D converter 220 converts the still picture information received through the still picture extractor 210 into digital information, and transfers the digitized still picture information to the book mark recording processor 230.

The book mark recording processor 230 compresses and temporarily stores still picture information received from the A / D converter 220. In addition, the temporarily stored compressed still picture is transmitted to the D / A converter 250.

The book mark recording processor 230 generates book mark information by combining the auxiliary information input from the system controller 110 and the temporarily stored still picture information, and stores the generated book mark information in the memory 180.

The book mark display processor 240 extracts book mark information having a classification name or book mark information having no classification name (auxiliary information + still picture information) from the memory 180 under the control of the system controller 110. Signal processing for displaying the extracted book mark information is transmitted to the D / A converter 250.

That is, the book mark display processor 240 classifies to display the still picture information and the auxiliary information from the book mark information previously stored in the memory 180, and classifies the classified still picture information and the auxiliary information into a D / A converter ( 250). The D / A converter 250 converts the book mark information input from the book mark display processing unit 240 or the still picture information received from the book mark recording processing unit 230 into an analog form and transmits the analog image to the OSD unit 170. do.

3 is a detailed configuration diagram of an embodiment of a book mark recording processing unit shown in FIG.

As shown in FIG. 3, the book mark recording processing unit includes a still picture compressor 332, a buffer 334, and a book mark information generator 336.

The still picture compressor 332 compresses the still picture information transmitted from the A / D converter 230 by a predetermined ratio and transfers the still picture information to the buffer 334.

The buffer 334 temporarily stores the compressed still picture and transfers the temporarily stored still picture to the D / A converter 250 by a control signal of the system controller 110, or the book mark information generator 336. To pass.

The book mark information generator 336 synthesizes the book mark auxiliary information provided from the system controller 110 and the compressed still picture information received through the buffer 334 into book mark information and delivers the book mark information to the memory 180. do.

4A and 4B illustrate embodiments of information output on an OSD screen for recording and displaying book mark information according to the present invention. FIG. 4A is displayed on the screen 400 in a process of recording book mark information. This is for displaying a classification name and title of the compressed still image 410 for the user to input.

Therefore, when the user checks the screen shown in FIG. 4A, inputs auxiliary information (classification name and title) by using the remote controller 190, and presses a predetermined input completion button through the remote controller 190, the book mark recording and The book mark recording processing unit 230 of the display module 160 generates a compressed still picture and auxiliary information (classification name and title) temporarily stored in the buffer 334 together in a database form to be stored in the memory 180.

Meanwhile, FIG. 4B is for displaying book mark information (compressed still picture and auxiliary information related to the compressed still picture) according to the classification name designated by the user in the display process of the book mark information. Therefore, when the user checks the information on the screen shown in FIG. 4B and selects a specific book mark using the remote controller 190, the system controller 110 moves the video to a position corresponding to the control pulse of the selected book mark information. The deck drive unit 130 is driven to move the tape.

Therefore, when the user inputs "movie" as the classification name, the book mark information corresponding to "movie" is displayed among the book mark information stored in the memory 180. That is, the compressed still picture 410 corresponding to the movie name "Escape City", the compressed still picture 420 for the movie name "Space vs. War 1", and the compressed still screen 430 for the movie name "Space vs. War 2" are respectively. Is displayed.

5 is a flowchart illustrating a method of recording book mark information using capture of a still image according to the present invention.

As shown in FIG. 5, the tape inserted into the deck of V-Cal is reproduced by the drive of the deck driver 130 under the control of the system controller 110, and the audio and video recorded on the video tape due to the reproducing operation. The signal is read through the play head 140, and the read video and audio signals are provided to the play signal processor 150 to perform a play operation (S501).

At this time, the system controller 100 determines whether the recording mode of the book mark is set while the video signal is being reproduced through the reproduction signal processor 150 (S502).

As a result of the determination in step S502, if the recording mode of the book mark is not set, the process returns to the step S501 of continuously performing the reproducing operation and repeats the loop, and in the step S502, the book If the recording mode of the mark is set, the position information of the video tape being reproduced is stored through the control pulse signal (S503), and the still image corresponding to the position information of the video tape is reproduced through the control of the system controller 110. The processor 150 extracts the data from the processor 150 and provides the book mark recording and display module 160 to pause the video tape playback operation (S504).

Thereafter, the still picture provided to the book mark recording and display module 160 is temporarily stored after being digitized and compressed at a predetermined rate, and the compressed still picture is output on the screen through the OSD unit 170 (S505). ).

The outputting of the compressed still picture is intended to induce a user to input auxiliary information of a book mark including a classification name and a title corresponding to the displayed still picture. Therefore, it is determined whether auxiliary information of the book mark is input after outputting the temporarily stored still picture to the outside (S506).

As a result of the determination in the step S506, when the auxiliary information of the book mark is not input, the process proceeds to the step S505 to continue displaying the compressed still picture, and as a result of the determination in the step S506, the auxiliary of the book mark. When the information is input, the book mark information is generated by synthesizing the temporarily stored still picture and the auxiliary information in step S505, storing the generated book mark information in the memory 180, and then temporarily stopping at step 504. The video recording is reproduced by releasing the stop (S507).

6 is a flowchart illustrating a method of displaying book mark information using a capture of a still image according to the present invention.

As shown in FIG. 6, the video tape inserted in the deck of V-Cal is reproduced by the drive of the deck drive unit 130 under the control of the system controller 110, and the audio and video recorded on the video tape by the reproducing operation. The signal is read through the play head 140, and the read video and audio signals are provided to the play signal processor 150 to perform a play operation (S601).

At this time, if the display mode of the book mark is set during the video tape playback operation, the system controller 110 determines whether the book mark information previously stored in the memory 180 exists (S602 and S603).

As a result of the determination in step S603, when the stored book mark information does not exist, the mode for displaying the book mark information is terminated. When the determined result, the stored book mark information exists, the system controller 110. Pauses the playback operation of the videotape and displays a screen requesting input of auxiliary information of a book mark through the OSD unit 170 (S604). Then, it is determined whether auxiliary information of the book mark is input within the set time (S605).

As a result of the determination in step S605, when auxiliary information of a book mark is input within a set time, the book mark recording extracting auxiliary information input by the control of the system controller 110, that is, book mark information corresponding to a classification name. The display module 160 displays the book mark information on the screen through the OSD unit 170 after performing signal processing for display (S606), and selects a specific book mark from the displayed book mark information. The process of determining whether or not to proceed to (608).

When the auxiliary information of the book mark is not input within the set time as a result of the determination in step S605, the book mark recording and display of the book mark information, which has been previously stored, is stored in the stored order by the control of the system controller 110. The module 160 displays the corresponding book mark information on the screen through the OSD unit 170 after performing signal processing for display, and determines whether to select a specific book mark from the displayed book mark information. Proceed to step 608.

As a result of the determination in step 608, if the user does not select a specific book mark from the displayed book mark information, the display mode of the book mark is terminated. As a result of the determination in step S608, when a specific book mark is selected from the displayed book mark information, the system controller 110 checks the position information on the tape corresponding to the selected book mark information, and returns to the checked position. After moving the tape by rewinding and fast-forwarding, it is controlled to perform the playback mode (S609).

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

The apparatus for recording / displaying book mark information using the capture of a still picture according to the present invention as described above and a method thereof include a compressed still picture displayed on a screen when a book mark is to be recorded during playback of a videotape. When the user wants to check the book mark, the user can easily move to the position of the desired video tape through the pre-stored compressed still picture and perform the playback.

Claims (14)

In the recording and display device of the book mark information in the VRC system, Book mark recording and display setting means for inputting a signal for recording book mark information of a video tape being reproduced and a signal for displaying book mark information; Controlling the display operation of the book mark information and the display of the stored book mark information through the extraction of the still picture by the signal provided from the book mark recording and display setting means, and the playback position of the video tape by the selection of the displayed book mark information Book mark control means for controlling movement; A still picture is extracted from a video and audio signal of a video tape being reproduced by a control signal for recording provided from the book mark control means, and digitally compressed, and the compressed still picture is synthesized with auxiliary information of an input book mark. To generate and temporarily store book mark information, extract the stored book mark information by a control signal for display provided from the book mark control means, and convert the extracted book mark information into an analog form for display. Book mark recording and displaying means; Book mark information storage means for storing book mark information synthesized in the book mark recording and display means by a control signal provided from the book mark control means; And Book mark display means for displaying a compressed still screen for inputting auxiliary information from the book mark recording and display means and book mark information stored in the book mark information storage means Book mark information recording / display device using the capture of a still image comprising a. The method of claim 1, The book mark recording and display means, Still picture extraction means for extracting a still picture from video and audio signals output by reproduction of a video tape by a control signal of a book mark control means; First data converting means for converting the extracted still picture into a digital form; Book mark recording processing means for compressing and temporarily storing the still picture converted into the digital form, and generating book mark information by synthesizing the temporarily stored still picture and book mark auxiliary information provided from the book mark control means; Book mark display processing means for extracting book mark information stored in the book mark information storage means by information provided from book mark control means and for signal processing for display of the extracted book mark information; And Second data converting means for converting the book mark information signaled and output from the book mark display processing means and the temporarily stored still picture output from the book mark recording processing means into an analog form and providing the book mark display means to the book mark display means; Book mark information recording / display device using the capture of a still image comprising a. The method of claim 2, The book mark recording processing means Still picture compression means for compressing a digital still picture inputted through said first data conversion means; Still picture storage means for temporarily storing a still picture compressed in said still picture compression means; And Book mark information generating means for generating book mark information by combining the still picture temporarily stored in the still picture storing means and auxiliary information of the book mark provided from the book mark control means; Book mark information recording / display device using the capture of a still image comprising a. The method according to any one of claims 1 to 3, The book mark information, Book mark information using the capture of a still picture, comprising a compressed still picture and a classification name and title which are book mark auxiliary information related to the still picture, and are classified by the classification name and stored in the book mark information storage means. Recording / display device. The method according to any one of claims 1 to 3, The book mark control means, Recording / bookmark information using the capture of a still picture, characterized in that the position information corresponding to the still picture stored in the book mark information storage means is extracted and stored using a control pulse signal generated by reproduction of a video tape. Display device. The method according to any one of claims 1 to 3, The still picture extracting means, A book mark information recording / display device using capture of a still picture, characterized by extracting a still picture of one frame from a video signal on a video tape to be reproduced. The method according to any one of claims 1 to 3, The still picture storage means, A still picture of a temporarily stored compressed form is first provided to the second data converting means, and a still picture of a compressed form temporarily stored by the control information provided by the book mark control means is provided to the book mark information generating means. And recording / display device of book mark information using capture of a still image. In the recording method of the book mark information using the capture of the still image applied to the recording device of the book mark information, A first step of setting a book mark recording mode during playback of the video tape; A second step of storing position information of a video tape being played back by the set book mark recording mode and extracting a still picture corresponding to the stored position information; A third step of pausing the playback operation of the videotape, converting, compressing, and temporarily storing the still picture extracted in the second step into a digital form; A fourth step of requesting input of book mark assistance information by outputting the temporarily stored still picture of the compressed form on a screen; A fifth step of generating and storing book mark information by synthesizing the temporarily stored still picture and the inputted auxiliary information in step 3 when auxiliary information corresponding to the compressed still picture output on the screen is input; And A sixth step of releasing playback pause in step 3 to perform playback of the videotape; Method of recording bookmark information using the capture of a still image comprising a. The method of claim 8, The book mark information, And a classification name and a title which are compressed still pictures and book mark auxiliary information related to the still pictures, and are classified and stored according to the classification names, wherein the book mark information is recorded. In the display method of the book mark information using the capture of a still image applied to the display device of the book mark information, A first step of setting a book mark display mode during playback of a videotape; A second step of pausing the playback operation of the videotape and requesting to input auxiliary information of the book mark when the previously stored book mark information is confirmed by the set book mark display mode; A third step of extracting and displaying the stored book mark information according to whether the auxiliary information of the requested book mark is input; And A fourth step of checking position information corresponding to the selected book mark information and moving the video tape to the checked position information to perform a playback operation when the displayed book mark information is selected; Display method of the book mark information using the capture of a still image comprising a. The method of claim 10, The third step, A fifth step of determining whether auxiliary information of the requested book mark is input within a set time; A sixth step of extracting all the stored book mark information and sequentially displaying the stored book mark information if the auxiliary information of the book mark is not input within a predetermined time as a result of the determination of the fifth step; And As a result of the determination in step 5, when the auxiliary information of the book mark is input within the set time, the seventh step of extracting only the book mark information related to the input auxiliary information and displaying it on the screen Display method of the book mark information using the capture of a still image comprising a. The method of claim 10 or 11, The book mark information, A method of displaying book mark information using a capture of a still image, comprising a compressed still image and a classification name and a title which are book mark auxiliary information related to the still image. In the recording medium readable by V-Cal having a processor for recording book mark information using the capture of a still image, A first function of setting a book mark recording mode during playback of a videotape; A second function of storing position information of a video tape being played back by the set book mark recording mode and extracting a still picture corresponding to the stored position information; A third function of temporarily reproducing the video tape, converting and compressing the still picture extracted by the second function into a digital form, and temporarily storing the video; A fourth function of requesting input of book mark assistance information by outputting the temporarily stored still picture of the compressed form on a screen; A fifth function of generating and storing book mark information by synthesizing the temporarily stored still picture and the inputted auxiliary information in the third function when auxiliary information corresponding to the compressed still picture output on the screen is input; And Sixth function for releasing playback pause in said third function to perform playback of video tape A computer-readable recording medium having recorded thereon a program for realizing this. In the recording medium readable by V-Cal having a processor for displaying book mark information using the capture of a still image, A first function of setting a book mark display mode during playback of a videotape; A second function of pausing the playback operation of the videotape and requesting input of the auxiliary information of the book mark when the previously stored book mark information is confirmed by the set book mark display mode; A third function of extracting and displaying stored book mark information according to whether the auxiliary information of the requested book mark is input; And A fourth function of checking position information corresponding to the selected book mark information and moving the video tape to the checked position information to perform a playback operation when the displayed book mark information is selected; A computer-readable recording medium having recorded thereon a program for realizing this.