JPH1098669A - Editing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously perform scene dividing processing to a video transmitted in real time and to perform an editing work while a scene is divided by constituting an editing system of three computers, that is, a computer for control and edition (controller/editor) and two computers for scene division (scene dividing machine). SOLUTION: Two scene dividing machines 2, 3 to detect a scene change point of an inputted video and the controller/editor 1 to control the scene deviding machines and to perform editing work as rearranging, coupling, etc., of each scene are used as a system to perform editing work to a video input 5 transmitted in real time. A video input board and an interface 6 to input/ output a control signal and a LAN interface 7 for file transfer are connected to each machine. Furthermore, a storing device 4 as a hard disk, etc., is connected to the contorller/editor 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to video editing, and enables continuous scene detection of a series of input images transmitted in real time. It is intended to enable editing work even during execution of processing.

[0002]

2. Description of the Related Art FIG. 4 shows a current editing system. The system includes an editing computer (hereinafter referred to as an editing machine) 10
And a video input / output device (for example, a VTR) 9 and a storage device 4. By reproducing the VTR, a video signal obtained from the VTR is input to an editing machine.
The editing machine and the VTR are connected by, for example, an interface such as RS-232C, so that the VTR can be controlled.

In an actual editing operation, an editing machine detects a change in color of an input image from a previous frame for each frame, and when a change is remarkable, determines a scene change point (scene division point). ), The frame at the change point is set as a representative screen, and the time code at the change point is loaded into the storage device 4. As a result, information on the IN point and OUT point of each scene and the length of the scene for performing the editing operation can be obtained. As shown in FIG. 5, the representative screen 50 and the like are displayed on a display and used as icons for editing work. After performing this detection process on the input video to be edited, the editing operation for each scene is started. More specifically, editing is performed by performing operations such as rearranging or combining arbitrary icons based on the representative screen that has been previously captured and output as icons on the display and the length of each scene.

[0004]

In the editing system shown in FIG. 4, while the editing machine is executing a process of extracting a scene division point from an input video (hereinafter referred to as scene division), There is a problem that the editing operation cannot be performed due to the limitation of the processing capacity of the CPU of the device. Further, when performing an editing operation during video input (that is, during execution of the scene division processing), it is necessary to determine (close processing) once the information captured immediately before and to create a file. In this case, even if another editing machine substitutes the editing work via the network, the scene dividing process cannot be performed on the own machine due to the finalizing process and the file transfer process. For this reason, in the case of a broadcast in which video is transmitted without interruption in real time, for example, in sports broadcasting, editing work while performing scene detection processing is not possible, and processing of scene division of all video once is performed. After that, editing work must be performed, which requires a great deal of time.

[0005]

According to the above-mentioned problem, it is difficult to perform an editing operation during video input with a single editing machine, and it is difficult to edit a video transmitted in real time. Time is needed. In order to solve this problem, as shown in FIG. 3, a computer for control / editing (hereinafter referred to as a control / editing machine) and two computers for dividing a scene (hereinafter referred to as a scene dividing machine) are used in total of three. Construct an editing system, operate two scene splitters alternately under the control of the control / editing machine, perform the scene splitting process,
The file subjected to the scene division processing is transferred to a control / editing machine, and the editing is performed in the machine.

According to the operation of the present invention, two scene splitters alternately execute a scene splitting operation according to a command from the control / editing machine. This makes it possible to divide the real-time video at certain intervals, and the file created at this stage can be used as an editing target.
When the scene division processing is completed, the file is transferred to the control / editing machine at any time, where the file is edited.
As a result, an editing operation can be realized during video input. That is, the scene division processing and the editing work can be performed in parallel.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In FIG. 1, as a system configuration for performing editing work on a video input 5 transmitted in real time, two scene splitters 2, 3 for detecting a scene change point of an input video, and , A control / editing machine 1 that performs editing work such as rearrangement and combination of scenes. Each device has a board for video input and an interface for input / output of control signals (for example, RS
232C) 6 and a LAN interface (for example, 10 BASE T) 7 for file transfer. Further, a storage device 4 such as a hard disk is connected to the control / editing machine 1.

Hereinafter, as a system configuration, an interface for input / output of control signals includes RS-232C, LAN
The operation of the interface using 10 BASE T will be described with reference to FIG.

In FIG. 3, the control / editing machine 1 and the two scene splitters are in an initial state 20 in which the power is turned on.
It is assumed that the apparatus waits while intermittently shifting to an input waiting state 22 in which an instruction from 2C is detected. It should be noted that the control / editing machine 1 also transmits the RS-232C
Is waiting in a state 21 for detecting a message (instruction) by. Furthermore, real-time video signals such as sports broadcasts are sent to each device. When starting the editing work, the control / editing machine 1
Instruction 23 to start scene division through RS-232C line
Is sent. After receiving the command, the scene division machine 2 starts the scene division processing 24 on the input video. Here, for scene division, the number of scene division points (the number of representative screens) which is a unit of one editing operation and which should be continuously detected by one scene division machine, and the other scene division The number of representative screens for determining the timing of sending a command for operating the machine is set as a specified number. In the process of performing the process, the scene division machine 2 sends the scene division machine 3 to the control / editing machine 1 after a predetermined number of detected scene division machine changes, that is, a state 25 in which the number of representative screens is detected. To send the message of request for activation
6 and sends the message. The control / editing machine 1 that has received the message enters a state 27 of sending a scene division start command to the scene division machine 3 that is currently in a command input waiting state, and sends that command. After receiving the command, the scene divider 3 enters a state 28 in which scene division processing is started for the input video, and the processing is started.
At this time, the scene division machine 2 has not yet completed the division work, and there is a portion that is detected redundantly between the two machines. Due to the existence of the overlapping portion, a scene division process can be continuously performed on a series of input images.

[0010] Further, in the scene division machine 2, the number of scene divisions reaches a predetermined number, which is a previously determined editing unit. At this stage, a state of sending a processing end message to the control / editing machine 1 is entered, and the message is sent out.
Further, the scene division machine 2 terminates the scene division processing, determines the file (close processing), and waits for an instruction input again. On the other hand, in the control / editing machine 1, after receiving the message, the file from the scene dividing machine 2 is stored in the LA
Then, the state becomes the receiving state 31 via N, and the file is received. It should be noted that the received file names are given unique names so that identification is possible. The control / editing machine 1
Then, the representative screens are rearranged, scenes are combined, and editing work is performed. With the above processing, editing work during video input becomes possible. In addition, during the editing operation, a search for a message from the scene division machine via the RS-232C is performed at any time, and the above processing is repeated in response to the search. This enables editing work during scene division.

The files for which the scene division work has been completed during the execution of the editing work are to be stored in a storage device 4 such as a hard disk mounted on the control / editing machine 1, for example. Enters a state 32 of outputting a message on a screen (monitor) to call attention of an operator. The stored files are read from the hard disk 4 as needed to be edited.

Next, when the scene division work is to be terminated halfway, a state 40 is reached in which an end command is sent to both scene splitters, and that command is sent. At this time, if the scene division has been performed, the process is stopped, the result up to that point is determined as a file, and the state 41 is awaited for inputting an instruction. If the state is the instruction input waiting state 42, the state is kept as it is.

It is needless to say that this method can be applied to a video recorded in a VTR or the like in advance.

[0014] In addition, for the editing target whose editing is completed, it is realized by controlling a medium such as a VTR as in the related art.

[0015]

By using three editing machines, scene division processing can be continuously performed on a video transmitted in real time. In addition, editing work can be performed during scene division.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a block configuration of an example of an editing system according to the present invention.

FIG. 2 is a flowchart showing processing at the time of halfway termination according to the present invention.

FIG. 3 is a flowchart showing an editing process according to the present invention.

FIG. 4 is a diagram showing an example of a block configuration of a conventional editing system.

FIG. 5 is a diagram schematically showing an operation screen for performing an editing operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control / editing machine 2 Scene division machine 3 Storage device 5 Input video 6 LAN network 7 RS-232C network 9 VTR

Claims (3)

[Claims] 1. By constructing a network (for example, LAN, RS-232C, etc.) using three computers, scene division can be continuously performed on a video transmitted in real time, An editing system characterized in that editing can be performed even while scene division is being performed. 2. A network (for example, LAN, RS-232C, etc.) constructed by using three computers, so that continuous scene division can be performed on a video transmitted in real time. And editing system. 3. An editing system characterized in that a network (for example, LAN, RS-232C, etc.) is constructed using three computers, so that editing can be performed even during scene division.