JP2012049840A - Video editing device, video editing method, video editing program, and computer readable storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to conduct editing efficiently while reproducing video continuously, by improving operationality in extraction of clips from video.SOLUTION: A video reproduction control area and a clip specification area are provided in a screen to display video content. A video reproduction control part 16 determines the reproduction method of video based on the position pointed in the video reproduction control area. A clip selection part 17 sets a start point or an end point of the clip by the judgment of the pointed position inside and outside the clip specification area. Thus, based on the one-time instruction by a user received by a user request reception part 15, the determination of the video reproduction method and the setting of the start point or the end point of the clip are achieved.

Description

  The present invention relates to a video editing technique for specifying a clip to be imported from an image as a material into an edited video by manual operation and editing the video by connecting the specified clips.

Video editing is divided into two main processes: the process of selecting clips that are specific time intervals to be imported from the material video into the edited video, and the process of determining the playback order of the selected clips and adding telop, audio, and music. Become. The general operation procedure for the process of selecting the first clip is as follows.
-Step 1: Open the material video file.
Step 2: Play the material video, check the content, search for the start point of the clip that is the section you want to adopt for the edited video, and pause the video playback.
-Step 3: Set the start point of the clip.
• Step 4: Play the material video, search the end point of the clip while checking the contents, and pause the video playback.
-Step 5: Set the end point of the clip.
Step 6: Repeat steps 1 to 5 above to create as many clips as necessary.

  When selecting a clip in a conventional video editing apparatus, it is essential to actually reproduce the video and check the contents. Video playback control that performs high-speed playback and slow playback is important to perform this work efficiently. In Non-Patent Document 1, four video editing software are introduced. In all of these softwares, previews are made by clicking buttons such as fast-forward, rewind, and slow playback of the selected material video, and a slider bar. Thus, a user interface for registering the start point and end point of a clip while checking the content of the video is provided.

Video salon, Genkosha, vol.56, July issue, pp.32-39, 2008

  In the conventional video editing apparatus, since it is necessary to perform video playback control and clip designation by separate operations, the number of operations increases. In addition, it is necessary to pause video playback when moving from video playback to clip designation operation, and it is not possible to efficiently perform editing while continuously playing back video.

  In particular, as a video editing method, instead of collecting the necessary material video after pre-determining the composition of the edited video, it is necessary to obtain the video that will be the material and then check the contents of the acquired video. When considering whether to create an edited video, it is necessary to grasp the content of the video while controlling the video playback and to specify the clip by trial and error. In such a case, the conventional technique has a problem that the number of operations is increased, and a problem that the editing operation cannot be performed efficiently while continuously reproducing the video.

  SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems, improve the operability when extracting clips from video, and enable efficient editing work while continuously playing back the video. .

In order to solve the above-described problems, the present invention provides a conventional operation procedure.
(1) Procedure 2 and procedure 3 can be performed with the same operation.
(2) Procedure 4 and procedure 5 can be performed with the same operation.
(3) The operations from step 2 to step 6 can be performed without pausing the video.
A means for realizing this is provided.

  That is, when a clip is extracted from a video, generally, the playback position is confirmed while the video is played (including fast forward and rewind), and the start and end points of the clip are determined. The present invention is intended to improve this operability. The playback method such as changing the playback speed, stopping, rewinding, etc. is determined according to the pointing position on the screen. The present invention is characterized in that the start point and the end point of a clip are determined when they are within a predetermined specific area.

  Specifically, the video editing apparatus according to the present invention relates to video playback control means for controlling a video playback method, clip selection means for selecting a clip that is a specific time section of video, video playback method, and clip setting. User request receiving means for receiving an instruction from the user is provided, and the video playback control means determines a video playback method and selects a clip based on a single instruction from the user received by the user request receiving means. The means is configured to set the start point or end point of the clip.

  The present invention provides a video playback control area that performs pointing for designating a video playback control method and a clip designation area that performs pointing for clip selection within the video playback control area on a screen that presents video content. The video playback control means determines in advance the video playback method based on the position pointed within the video playback control area, and the clip selection means immediately after pointing outside the clip designation area When the position within the clip specification area is pointed to, the playback time when the position outside the clip specification area is pointed immediately after pointing to the position within the clip specification area is set as the start time of the clip. The current video time is the end point of the clip.

  According to the present invention, it is possible to specify the video playback method and to instruct from the user regarding the setting of the clip start point or end point by a single operation, thereby reducing the number of operations in video editing. In particular, since it becomes possible to work continuously without stopping video reproduction, video editing can be performed efficiently.

It is a figure which shows the structural example of the video editing apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of the screen which performs video editing operation. It is a figure which shows the example of a setting of a video reproduction method. It is a flowchart of a video editing process. It is a figure for demonstrating the example of operation | movement of the whole.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a video editing apparatus according to an embodiment of the present invention. The video editing apparatus 10 includes hardware such as a CPU and a memory and a software program, and includes a video reception unit 11, a data storage management unit 12, a data storage device 120, a user presentation information creation unit 13, a display control unit 14, A user request receiving unit 15, a video reproduction control unit 16, and a clip selection unit 17 are provided. A display device 20 and a pointing device 30 such as a mouse, a touch panel or the like are connected to the video editing device 10.

  The video reception unit 11 receives a video to be edited from a user and outputs the received video to the data accumulation management unit 12.

  The data storage management unit 12 stores the video data received from the video reception unit 11 and the clip data received from the clip selection unit 17 in the data storage device 120, in response to a request from the user presentation information creation unit 13. Video data and clip data are output to the user presentation information creation unit 13.

  The user presentation information creation unit 13 requests the data storage management unit 12 for video data and clip data to be presented to the user, reads the data from the data storage device 120, and creates information to be presented to the user. At this time, when a video playback method is received from the video playback control unit 16, presentation information to the user is created so as to execute necessary video playback. The created information is output to the display control unit 14. The display control unit 14 displays the information received from the user presentation information creation unit 13 on the display device 20 and presents it to the user.

  The user request receiving unit 15 receives a request from the user regarding video editing from the pointing device 30 and outputs the received request to the video reproduction control unit 16 and the clip selection unit 17.

  Upon receiving a user request from the user request receiving unit 15, the video playback control unit 16 determines a video playback method according to the received user request and uses the determined video playback method as a user presentation information creation unit. 13 is output.

  When the clip selection unit 17 receives a user request from the user request reception unit 15, the clip selection unit 17 selects a clip according to the received user request, and outputs the selected clip data to the data accumulation management unit 12. The data accumulation management unit 12 stores the received clip data in the data storage device 120 and manages it.

  Next, a processing procedure for selecting a clip necessary for video editing in response to a request from the user will be described. In the present embodiment, a case will be described in which the position data pointed by the user with the pointing device 30 on the screen of the display device 20 is used as a request from the user.

  In the present embodiment, a method for determining the video playback control method from the position data pointed by the user in the video playback control unit 16 will be described with reference to FIGS.

  FIG. 2 shows an example of a video playback control area and a clip designation area set based on the video playback screen. In FIG. 2, reference numeral 40 denotes an entire screen for video editing operation, 41 denotes a video playback screen for playing back video to be edited, 42 denotes a video playback control area, and 43 denotes a clip designation area.

  The video playback screen 41 is an area for video playback where video content is played back and displayed. The area expanded vertically including the video playback screen 41 is the video playback control area 42, and the user can change the video playback method by pointing by clicking with the mouse or touching the touch panel.

  FIG. 3 shows an example in which the video playback control unit 16 determines the playback speed based on the pointing position. In this example, the video playback control area 42 is divided into two equal parts to the left and right, and when it is pointed to the right side, it is played back sequentially. Furthermore, the playback speed is increased as the distance from the left and right ends of the video playback control area 42 is approached. Further, when the video playback control area 42 is divided into two equal parts in the vertical direction and is pointed upward, as shown in FIG. 3 (B), the video playback control area 42 is shown in FIG. 3 (C). Change the playback speed in the slow playback range.

  When pointing outside the area where the video playback method can be changed, video playback is stopped.

  Next, a method of selecting a clip from the position data pointed by the user in the clip selection unit 17 will be described below. In this example, in FIG. 2, the video playback screen 41 in the video playback control area 42 is set as a clip designation area 43. The clip selection unit 17 sets the reproduction time as the start point of the clip when the inside of the clip designation area 43 is pointed immediately after the position outside the clip designation area 43 is pointed. Further, when the outside of the clip designation area 43 is pointed immediately after the inside of the clip designation area 43 is pointed, the playback time is set as the end point of the clip. In clip setting, if the end point of a clip is set at a time before the start point, this clip setting is invalidated.

  FIG. 4 shows the entire processing procedure when video playback control and clip setting are performed from the position pointed on the screen by the above method.

  First, in step S101, the video receiving unit 11 reads a video to be edited. The read video is stored in the data storage device 120 by the data storage management unit 12.

  In step S102, the user presentation information creation unit 13 reads the video stored in the data storage device 120 via the data storage management unit 12, creates information to be presented to the user, and displays the information via the display control unit 14. An image is presented to the device 20.

  In step S <b> 103, the user request accepting unit 15 accepts pointing by the pointing device 30 from the user.

  In step S104, whether or not the video playback control unit 16 performs video playback control is determined based on the pointing position data. If the video reproduction control is to be performed, the process proceeds to step S105, and if not, the process proceeds to step S106.

  In step S105, the video playback control unit 16 determines the video playback method, and instructs the user presentation information creation unit 13 of the playback method. The user presentation information creation unit 13 creates video playback data in accordance with the instructed playback method and outputs the video playback data to the display control unit 14.

  In step S106, whether or not clip setting is performed by the clip selection unit 17 is determined based on the pointing position data. If clip setting is to be performed, the process proceeds to step S107, and if not, the process proceeds to step S108.

  In step S <b> 107, the clip selection unit 17 sets a clip start point or end point, notifies the data storage management unit 12 of clip data indicating the start point and end point, and stores the clip data in the data storage device 120. The user presentation information creation unit 13 creates a screen on which necessary clips are presented and presents the screen to the display device 20 via the display control unit 14.

  In step S108, it is determined whether or not a request to end the process has been input. If no request to end the process has been input, the process returns to step S103 and the process is repeated in the same manner. When a request to end the process is input, the process ends.

Next, an overall operation example will be described with reference to FIG. When an image is presented as shown in FIG. 5 in step S102 of FIG. 4 and the user's pointing in step S103 is sequentially pointed to the positions P1 to P7 shown in FIG. 5, the screen of the display device 20 is displayed. The reflected operations are as follows.
P1: Video playback is stopped because P1 in the area corresponding to the background is touched.
P2: When the lower / right side P2 in the video playback control area 42A is touched outside the clip designation area 43A, only the video A is played back. Playback in the time direction with slow playback.
P3: When the upper / right side P3 in the video playback control area 42A is touched outside the clip designation area 43A, only the video A is changed to high speed playback.
P4: When the upper / right side P4 in the clip designation area 43A is touched, the time is managed as the start time of the clip of the video A.
P5: When P5 on the upper / left side in the clip designation area 43A is touched, rewind playback is performed.
P6: When the lower / right side P6 in the clip designation area 43A is touched, the playback mode is changed to slow playback.
P7: When P7 in the area corresponding to the background is touched, that time is managed as the end time of the clip of video A, and video playback is stopped. If the end point of the clip is set without stopping the video reproduction, a position outside the clip designation area 43A (for example, the position of P2) may be touched in the video reproduction control area 42A.

  As described above, since video playback control and clip selection can be performed with a single touch on the screen, efficient video editing can be performed.

  It is also effective to read the clip data stored in the data storage device 120 managed by the data storage management unit 12 and present it to the user together with the already selected clip when the clip is set. The selected clip 45 at the bottom of the screen 40 shows an example in which the selected clip is listed in the selected time order and presented to the user.

  In the menu bar at the top of the screen 40 shown in FIG. 5, “Video file selection” is a menu for selecting a file storing the video to be edited. “Load video editing result” is a menu for designating reading clip data of the video editing result. “Edited video creation” is a menu for designating creation of an edited video by selecting a clip while playing back the video. The “video selection result recording mode” is a menu for designating recording of selected clip data during video editing. “Synchronous / asynchronous playback” is a menu for designating whether a plurality of videos are to be played back synchronously or not. “Save editing result” is a menu for designating that the editing result of the video up to that point is saved in the data storage device 120 managed by the data storage management unit 12.

  The above-described video editing process can be realized by a computer and a software program, and the program can be recorded on a computer-readable recording medium or provided through a network.

DESCRIPTION OF SYMBOLS 10 Video editing apparatus 11 Video | video reception part 12 Data storage management part 120 Data storage device 13 User presentation information preparation part 14 Display control part 15 User request reception part 16 Video | video reproduction | regeneration control part 17 Clip selection part 20 Display apparatus 30 Pointing device

Claims (5)

In a video editing device that presents the video content to be edited by playback, selects a clip that is a specific time interval in the presented video, and edits the video.
A user request accepting means for accepting an instruction from a user regarding a video playback method and clip setting according to a pointed position on a video editing screen;
Video playback control means for controlling a video playback method according to the pointed position;
Clip selecting means for selecting a clip that is a specific time section of the video according to the pointed position and the time of the video being played back;
In response to a single instruction from the user received by the user request receiving means, the video playback control means determines the video playback method and the clip selection means sets the start or end point of the clip. A video editing apparatus characterized in that a pointing target area to be performed together is provided in the video editing screen. The video editing apparatus according to claim 1,
In the video editing screen, a video playback control area in which pointing for specifying a video playback method and a clip specification area in which pointing for clip selection is performed are preset in the video playback control area. And
The video playback control means determines a video playback method based on the position pointed in the video playback control area;
The clip selection means uses the video time being played as a clip start point when a position in the clip designation area is pointed immediately after a position outside the clip designation area is pointed, and the clip designation area A video editing apparatus, wherein a video time being played when a position outside the clip designation area is pointed immediately after the position inside is pointed is set as an end point of the clip. Executed by a video editing apparatus comprising user request receiving means for receiving instructions from a user, video playback control means for controlling a video playback method, and clip selection means for selecting a clip that is a specific time interval of the video A video editing method,
A step in which the user request accepting means accepts an instruction from a user regarding a video playback method and clip setting according to a pointed position on a video editing screen;
The video playback control means controlling a video playback method according to the pointed position;
The clip selection means includes a step of selecting a clip that is a specific time interval of the video according to the pointed position and the time of the video being played back;
In addition, when the pointed position is within a specific area set in advance in the video editing screen, in response to a single instruction from the user received by the user request receiving means. The video editing method, wherein the video playback control means determines a video playback method, and the clip selection means sets a start point or an end point of the clip.   A video editing program for causing a computer to function as means included in the video editing apparatus according to claim 1.   A computer-readable recording medium on which a video editing program for causing a computer to function as means included in the video editing apparatus according to claim 1 or 2 is recorded.

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