JP2008244657A - Moving image recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving image recorder for automatically recording the program search signal of an important scene to recorded moving images. <P>SOLUTION: A character string and a weight coefficient for the time of calculating an importance degree determined corresponding to the appearing frequency of the character string are acquired, the recording of moving images is started from the prescribed time, and also, a heading signal for heading the moving image from an optional timing within the recorded moving images can be recorded in the recorded moving images. Write information written by characters to an electronic bulletin board is continuously acquired after the prescribed time comes, the acquired character string is retrieved from the write information written within a prescribed time period in the acquired write information, and the importance degree of the character string is calculated on the basis of the number of retrieved character strings and the weight coefficient. When the calculated importance degree exceeds a prescribed threshold, control is executed so as to record the heading signal to the moving image recorded at the time corresponding to within the prescribed time period. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a moving image recording apparatus, and more particularly to a moving image recording apparatus that automatically records a cue signal in an important scene.

  In recent years, the act of writing an impression on a bulletin board on the Internet in real time while watching a television program has generally taken root. There is a live commentary board for each TV station, but when it becomes a popular program, a dedicated thread is set up, and many writings are often made at the moment of an important scene.

  Against this background, various technologies that combine network technology and moving image recording technology have been proposed. In relation to this technique, Patent Document 1 discloses a technique for automatically searching for the start time of a specific scene that a user particularly pays attention to.

  Further, Patent Document 2 receives only an index file placed to manage a large amount of stored messages, not a message itself, from a group of message storage servers already operated on a network, A technique is disclosed that reads a change in the number of posted messages per hour to a thread formed by, detects an abnormal increase in the number of posted messages for a program estimated from a topic name, and recommends the program.

  Furthermore, in Patent Document 3, when a moving image recorded on a hard disk recorder or the like is viewed on a portable viewing terminal, a function that can reach a target scene with a small number of operations at the same time while minimizing the processing on the portable viewing terminal side. Techniques to provide are disclosed.

Patent Document 4 discloses a technique for selectively browsing posts related to a broadcast program being viewed.
JP 2006-19875 A JP 2006-11896 A JP 2004-173120 A JP 2006-53729 A

  In relation to the above-described technology, conventionally, the popularity (viewing rate) is converted using the number of posts by thread corresponding to the program on the Internet bulletin board, or the specific scene is detected by the keyword of the posted article (writing). Although there was a technique to do, there was no technique to automatically add a cue mark of an important scene to a recorded program. In particular, recently, a large number of secret words unique to the Internet have been used.

  As described above, conventionally, there has been a problem that there is no automatic recording of a cue signal of an important scene for a recorded moving image.

  In view of the above problems, an object of the present invention is to provide a moving image recording apparatus that automatically records a cue signal of an important scene for a recorded moving image.

  In order to achieve the above object, the invention of claim 1 includes a character string and a character string information acquisition means for acquiring a weighting factor for calculating an importance determined according to the appearance frequency of the character string, Recording means capable of recording a moving image from an arbitrary timing in the recorded moving image and recording a cueing signal for cuing the moving image from an arbitrary timing in the recorded moving image, Write information acquisition means for continuously acquiring write information written in characters on a bulletin board after the predetermined time has arrived, and written information within a predetermined time in the write information acquired by the write information acquisition means The character string acquired by the character string information acquisition means is searched from the write information, and the importance of the character string is determined based on the number of the character strings searched and the weighting factor. And a calculating means for outputting, and when the degree of importance calculated by the calculating means exceeds a predetermined threshold, the recording means includes a head of a moving image recorded at a time corresponding to the predetermined time. Control means for controlling to record the output signal.

  According to the invention of claim 1, the character string information acquisition means acquires the character string and the weighting coefficient for calculating the importance determined according to the appearance frequency of the character string, and the recording means acquires the moving image from a predetermined time. In addition to starting image recording, a cueing signal for cueing a moving image from an arbitrary timing within the recorded moving image can be recorded on the recorded moving image. Write information written on the bulletin board by letters after the predetermined time has arrived, and the calculation means writes the write information written within the predetermined time in the write information acquired by the write information acquisition means Then, the character string acquired by the character string information acquiring means is searched, the importance of the character string is calculated based on the number of the character strings searched and the weighting factor, and the control is performed. When the importance calculated by the calculating unit exceeds a predetermined threshold, the recording unit records a cueing signal in a moving image recorded at a time corresponding to the predetermined time. Therefore, the cue signal of the important scene can be automatically recorded for the recorded moving image.

  According to the present invention, as in the invention of claim 2, the write information includes user information indicating a user who has written the write information on the electronic bulletin board, and user write information indicating contents written by the user. And determining means for determining whether or not a plurality of the same set information exists in the write information written within a predetermined time, and the calculation information is included in one set. Means determines that the user-written information written by the user indicated by the user information included in the same set information is important You may make it not use for calculation of a degree.

  According to the second aspect of the present invention, it is possible to eliminate the cause of malfunction at the time of calculating the importance by not using the writing information written by the same user for a very short time for the calculation of the importance of the character string.

  According to the present invention, it is possible to provide a moving image recording apparatus that automatically records a cue signal of an important scene for a recorded moving image.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the configuration of the moving image recording apparatus 12 will be described with reference to FIG. The moving image recording device 12 includes a CPU (Central Processing Unit) 60, a ROM (Read Only Memory) 61, a RAM (Random Access Memory) 62, an HDD (Hard Disk Drive) 63, which are connected by a bus B, respectively. A display unit 64, an operation input unit 65, and a communication interface 66 are included.

  The CPU 60 controls the overall operation of the moving image recording apparatus 12, and the processing described later is executed by the CPU 60. The ROM 61 is a non-volatile recording device in which a boot program that operates when the moving image recording device 12 is activated is recorded. The RAM 62 is a volatile recording device in which an OS (Operating System), a program, and data are expanded. The HDD 63 is a non-volatile recording device that records an OS, a program, and the like and also records a moving image. In addition, a keyword database (hereinafter referred to as keyword DB) to be described later may be recorded in the HDD 63. Further, the HDD 63 can record a cueing signal for cueing a moving image from an arbitrary timing in the recorded moving image in the recorded moving image.

  The display unit 64 displays various predetermined information. The operation input unit 65 is used when a user operates the moving image recording apparatus 12 or when inputting information to the moving image recording apparatus 12. The communication interface 66 is an interface for performing communication by connecting to the Internet, and is a NIC (Network Interface Card) or the like for performing communication. With this communication interface 66, write information written in characters on the electronic bulletin board is continuously acquired after a predetermined time has arrived.

  Next, the keyword DB will be described with reference to FIG. As shown in the figure, the keyword DB includes an important scene category, a keyword, a regular expression, and a weighting coefficient. The important scene category indicates an important scene. The keyword (character string) is a keyword used when searching the written information written by characters on the electronic bulletin board.

  The regular expression is for searching for a keyword having the same meaning as the corresponding keyword. Further, “*” used in the regular expression is a wild card. For example, WW * indicates a keyword starting with WW. [Oo]? [ZzL] is a keyword in which the first character is O or o, the second character is an arbitrary character, and the third character is any one of Z, z, and L characters. Is shown. The weighting coefficient is used when calculating the importance determined according to the appearance frequency of the keyword.

  This keyword DB may be recorded in advance in the HDD 63 of the moving image recording apparatus 12, but may be acquired from another computer via the communication interface 66. In that case, the acquired keyword DB information is stored in the HDD 63 or the RAM 62.

  Hereinafter, processing of the moving image recording apparatus 12 according to the present embodiment will be described using a flowchart. The processing shown in each flowchart is executed by the CPU 60.

  First, processing for registering a keyword in the keyword DB will be described with reference to FIG. When a category (important scene category) is designated by the user in the first step 101, in a next step 102, editing processing of a keyword, a regular expression of the keyword, and a weighting factor is executed by the user in accordance with a user instruction. In the next step 103, the keyword edited by the user, the keyword regular expression, and the weighting coefficient are registered in the keyword DB described above, and the process is terminated.

  This keyword registration process allows you to appropriately register a list of keywords for searching electronic bulletin boards by category, so you can register secret words and idioms (words specific to the Internet) on the Internet that change with the times. An important scene can be detected regardless of a keyword.

  The keyword registration process is executed by a computer when the keyword DB is acquired from another computer.

  Next, the cue signal recording process will be described with reference to the flowchart of FIG. In this processing, it is assumed that the keyword DB information is already stored in the HDD 63 or the RAM 62. Each keyword is stored in the two-dimensional array K [i] [j]. In K [i] [j], i represents a category number, and j represents a keyword number in the category.

  In the first step 201, keywords, regular expressions, and weighting factors are acquired from the keyword DB. Note that only the regular expression and the weight coefficient may be acquired without acquiring the keyword. The next step 202 is waiting for the recording start time to arrive. When the recording start time comes, in step 203, recording of a moving image to the HDD 63 is started.

  The next step 204 is waiting for the passage of X minutes from the start of recording. This X minute is a time that takes into account the time until the user's writing on the electronic bulletin board is actually reflected on the electronic bulletin board.

  In the next step 205, counters i and j are initialized with 1. Among them, the counter i is used as a category counter, and the counter j is used as a keyword counter in the category.

  Next, in step 206, importance calculation processing for K [i] [j], which is a keyword, is performed. In this process, when a keyword is input, the importance of the keyword in the written information written on the electronic bulletin board is calculated.

  In the next step 207, it is determined whether or not the importance calculated by the importance calculation processing has exceeded a predetermined threshold Y. The threshold value Y may be a predetermined fixed value or may be determined by the user, but may be increased or decreased depending on the amount written within a predetermined time.

  If an affirmative determination is made in step 207, control is performed in step 214 so as to record a cue signal in a moving image recorded at a corresponding time within a predetermined time, and the process proceeds to step 208. Here, the time corresponding to the predetermined time may be, for example, a time obtained by matching the time when the elapsed time is added to the recording start time using the built-in clock of the moving image recording apparatus 12 and the writing time on the bulletin board. .

  Alternatively, it may be a written time or may be a time taking into account the time until it is actually reflected on the electronic bulletin board described above. In addition, it takes into account the time from the occurrence of some scene in the actual moving image until the user writes it, and the time until the content written on it is actually reflected on the electronic bulletin board. Also good.

  If a negative determination is made in step 207, and after the processing of step 214 is completed, i is incremented by one in step 208, that is, the keyword is set as the next keyword. In the next step 209, it is determined whether i is larger than A (j). Here, A (j) indicates the total number of keywords belonging to the jth category.

  If a negative determination is made in step 209, the process returns to step 206 again. On the other hand, if an affirmative determination is made in step 209, j is incremented by one in step 210, that is, the category is set as the next category.

  In the next step 211, it is determined whether or not j is larger than B. Here, B indicates the total number of categories.

  If a negative determination is made in step 211, the process returns to step 206 again. On the other hand, if an affirmative determination is made in step 211, it is determined in step 212 whether the recording end time has come. If a negative determination is made in step 212, the process returns to step 206 again. On the other hand, if an affirmative determination is made in step 212, recording is terminated in step 213.

  This cue signal recording process makes it easy to determine the importance of the scene in real time using the status and keywords of the live electronic bulletin board on the Internet, and to record the cue signal in the moving image during recording. It is possible to search important scenes.

  Next, the importance calculation processing will be described with reference to the flowchart of FIG. First, in step 301, the weighting coefficient p of the keyword K [i, j] is set. In the next step 302, the number m of writing written in the electronic bulletin board within a predetermined time from time a to time b, ID, and writing information f (k) are acquired. Here, k takes a value from 0 to less than m.

  The ID is user information indicating a user. Further, the user write information indicating the content written by the user indicated by the ID is f (k). Information that forms one set of these IDs and write information f (k) written by the user indicated by the IDs is set information.

  In this process, information on the electronic bulletin board is acquired. For example, the electronic bulletin board corresponding to the program being recorded can be obtained by using a method described in Japanese Patent Laid-Open No. 2006-11896. I can find it.

  In the next step 303, ID determination processing is performed. This ID determination process is a process of determining whether or not a plurality of the same set information exists in the write information f (k) written within a predetermined time.

  In this ID determination process, when there are a plurality of the same set information, the ID included in the same set information is set as an NGID indicating an ID not used for calculating the importance.

  In the next step 304, the counter k and the importance s are each initialized to 0. In the next step 305, it is determined whether or not the ID paired with the write information f (k) is NGID. If an affirmative determination is made in step 305, the process proceeds to step 309, and f (k) is not used for calculating the importance of the keyword.

  On the other hand, if a negative determination is made in step 305, the keyword K [i, j] is searched in the write information f (k) in step 306, and in step 307, it is determined whether or not there is a keyword. If a negative determination is made in step 307, the process proceeds to step 309. On the other hand, if an affirmative determination is made in step 307, a value obtained by adding p to s is again set to s in step 308. Therefore, s is calculated based on the number of searched keywords and the weighting factor.

  In the next step 309, k is incremented by one. In step 310, it is determined whether k ≧ m. If a negative determination is made, there is write information f (k) that has not been searched yet, and the process returns to step 305. On the other hand, if an affirmative determination is made, in step 311, s is returned to the cue signal recording process as the importance level, and the process is terminated.

  The importance calculation processing described above is not executed by the moving image recording apparatus 12, but is executed by, for example, the manufacturer that manufactured the moving image recording apparatus 12, and the moving image recording apparatus 12 receives only the importance calculation result. good. In addition, since the importance level calculation process is executed many times by the cue signal recording process, the writing information written in characters on the electronic bulletin board is continuously acquired.

  Next, the ID determination process will be described with reference to FIG. Multiple writing by the same user may occur in a very short time using a script language or the like. In this ID determination process, if the user with the same ID has written exactly the same (one letter and one phrase) on the electronic bulletin board a plurality of times, it is regarded as an electronic bulletin board vandalism and the ID is not used for the importance calculation. And Accordingly, in this ID determination process, in step 401, an ID having a plurality of identical pairs of f (k) and ID is defined as NGID.

  By this ID determination processing, importance calculation errors due to multiple writings by the same user can be eliminated.

  The flow of the processing of each flowchart described above is an example, and it is possible to change the processing order, add a new step, or delete an unnecessary step without departing from the gist of the present invention. Needless to say.

It is a figure which shows the structure of a moving image recording device. It is a figure which shows a keyword database. It is a flowchart which shows a keyword registration process. It is a flowchart which shows a cueing signal recording process. It is a flowchart which shows importance calculation processing. It is a flowchart which shows ID determination processing.

Explanation of symbols

12 moving image recording device 60 CPU
62 RAM
63 HDD
65 Operation Input Unit 66 Communication Interface

Claims (2)

A character string and a character string information acquisition means for acquiring a weighting factor for calculating the importance determined according to the appearance frequency of the character string;
Recording means capable of recording a moving image at a predetermined timing and recording a cueing signal for cueing a moving image from an arbitrary timing in the recorded moving image in the recorded moving image; ,
Write information acquisition means for continuously acquiring write information written in characters on an electronic bulletin board after the predetermined time has arrived;
From the write information written within a predetermined time in the write information acquired by the write information acquisition means, search for the character string acquired by the character string information acquisition means, the number of times the character string was searched, And calculating means for calculating the importance of the character string based on the weighting factor,
When the importance calculated by the calculating unit exceeds a predetermined threshold, the cueing signal is recorded on the moving image recorded at the time corresponding to the recording unit with respect to the recording unit. Control means to control,
A moving image recording apparatus. The write information includes set information that is a set of user information indicating a user who has written the write information on the electronic bulletin board and user write information indicating the content written by the user,
A determination means for determining whether or not a plurality of the same set information exists in the write information written within a predetermined time;
When the determination unit determines that a plurality of the same set information exists, the calculation unit calculates the user-written information written by the user indicated by the user information included in the same set information as the character string. The moving image recording apparatus according to claim 1, wherein the moving image recording apparatus is not used for calculating the importance of the video.

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