JPH05183862A - Moving picture editing device - Google Patents

Abstract

PURPOSE:To obtain the image editing device improved in the efficiency of editing operation. CONSTITUTION:Video image data which are inputted from a video image generation device 1 through an A/D converter 2 are stored in a 1st image memory 31 and an image which is (n) frames precedent to the image stored in the 1st image memory 31 is stored in a 2nd image memory 32. A scene switching frame detection part 33 detects a scene switching frame according to the storage contents of both memories 31 and 32. A scene switching frame time measurement part 34 measures the time interval between scene switching frames detected by the detection part 33. A moving picture index information generation part 35 generate a multiple image from plural images where scene switching is done according to the detection result of the detection part 33 and the measurement result of the measurement part 34, adds time information to the multiple image to generate moving picture index information, and displays the moving picture index information on an image monitor 5 through a D/A converter 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a video camera and a VTR.
The present invention relates to a moving image editing apparatus that performs various types of editing based on moving image materials of video images.

[0002]

2. Description of the Related Art In recent years, predetermined scene cuts, moving picture time order changes, partial image processing conversions, and other media such as still images, graphics, text information, etc., based on video materials of video images from video cameras, VTRs, etc. Editing such as integration has been strongly desired.

Editing in a conventional moving image editing apparatus has been performed by actually executing the above-mentioned functions of the apparatus and performing a trial-and-error confirmation evaluation of the process simulation process. Therefore, if there is a change / addition, the process is executed again, and it takes a considerable time to obtain the desired new moving image information.

In particular, when moving picture material is recorded on a VTR, in order to search for a desired image from a tape that has been recorded once, while looking at the image by pressing the search button with a human hand for an appropriate time, Since the address number of the image was written down each time, it took a lot of labor and time to do this with a tape for a long time.

[0005]

As described above, the moving image editing method in the conventional moving image editing apparatus has a problem that it takes a great amount of time and a heavy burden on humans.

Therefore, the present invention has been made in consideration of the above circumstances, and an object thereof is to provide an image editing apparatus which improves the efficiency of editing work.

[0007]

In order to achieve the above object, the invention according to claim 1 uses a storage means for storing a plurality of sequentially input moving images and a plurality of moving images stored by the storage means. The present invention is characterized by having a detecting means for detecting an image in which scenes are switched and a moving image index information creating means for creating an image detected by the detecting means as moving image index information.

According to a second aspect of the invention, in the first aspect of the invention, there is provided a measuring means for measuring the time interval between the images detected by the detecting means, and the moving image index information creating means is the The time information based on the time interval measured by the measuring means is created as the moving image index information together with the image detected by the detecting means.

[0009]

According to the invention described in claim 1, when the detecting means detects an image in which scenes are switched using a plurality of moving images stored in the storing means, the moving image index information creating means detects the image detected by the detecting means. Create as video index information. This saves the trouble of the editor in searching for an image whose scene has been switched, and facilitates searching for another moving image based on the image.

According to the second aspect of the present invention, the detecting means detects the image in which the scene is switched using the plurality of moving images stored in the storing means, and the measuring means detects the time interval between the images detected by the detecting means. When the measurement is performed, the moving image index information creating unit creates, as moving image index information, the time information based on the time interval measured by the measuring unit together with the image detected by the detecting unit. This saves the trouble of the editor to search for an image whose scene has been switched, and makes it easier to search for another moving image based on the image and time information.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic block diagram showing an embodiment of a moving image editing apparatus of the present invention.

The present apparatus takes in a video image generating device 1 such as a video camera, a VTR, a laser disk, and a video image generated by this video image generating device 1 via an A / D converter 2, and obtains moving image index information. The moving image index information creating unit 3 to be created and the image monitor 5 for displaying the moving image index information created by the moving image index information creating unit 3 via the D / A converter 4 are roughly configured.

The moving image index information creation unit 3 stores a first image memory 31 for storing an input image from the video image generating device 1, and an image n frames before the image stored in the first image memory 31. And a second scene memory 32 for storing scenes, a scene change frame detection section 33 for detecting scene change frames based on the contents stored in the first and second image memories 31, 32, and this detection section 33.
The scene switching frame time measuring unit 34 for measuring the time interval between the scene switching frame detected by the scene switching unit, the detection result of the scene switching frame detecting unit 33, and the measurement result of the scene switching frame time measuring unit 34. A moving image index information creation unit 35 that creates a multi-image as moving image index information from a plurality of images that have been switched.

The moving picture index information creating section 3 is also provided.
Is a video signal of the standard NTSC system when the video image input from the video image generation device 1 is sampled at a sampling frequency of 10 MHz and captured, the video signal from the video image generation device 1 The horizontal 5
It is taken in as a signal having a resolution of 12 pixels and 512 vertical lines.

The scene switching frame detection unit 33
Where Va is the content of the first image memory 31 and Vb is the content of the second image memory 32, for example, E = | Va−Vb
When the calculation of | is executed and E ≧ eth, it means that the image has changed greatly, it is judged that “scene switching” exists between these frames, and the scene switching frame is detected.

The moving picture index information creating section 35 is
For example, as shown in FIG. 2, a scene switching frame image detected by the scene switching frame detection unit 33 is geometrically compressed vertically and horizontally by a known technique to create a multi-image without changing the temporal order. To do. In the figure, v _{11 to} v ₄₄ indicate reduced images multi-displayed on the same screen, which are index images of scene switching frame images. Further, the moving image index information creation unit 35, in each of the reduced images v _{11 to} v _{44 of the} multi-screen, the time interval (tnn + 1, i) of the scene switching frame measured by the scene switching frame time measuring unit 34. I am trying to synthesize. Note that the moving image index information creating unit 35 may create the moving image index information by combining only the scene switching frame image and the time information thereof, instead of creating the multi-image as described above.

Next, the operation of the moving picture editing apparatus having the above-mentioned structure will be described.

When the moving image index information creating unit 3 digitally encodes the video image from the video image generating device 1 by the A / D converter 2 and takes in the image data, the image data is stored in the first image memory 31, 2 image memory 3
2 indicates that the image stored in the first image memory 31 has n
Images before the frame are stored. The scene switching frame detection unit 33 uses the first and second image memories 31, 3
The scene switching frame is detected based on the contents stored in 2, and the detection result is output to the moving image index information creating unit 35. The scene switching frame time measuring unit 34
The time interval between scene switching frames detected by the scene switching frame detection unit 33 is measured, and the measurement result is output to the moving image index information creation unit 35. The moving image index information creation unit 35 creates a multi-image from a plurality of images in which scene switching has occurred based on the detection result of the scene switching frame detection unit 33, and the scene switching frame time measurement unit 34 in each reduced image. The time information measured by is also combined and output as moving image index information.
The moving image index information is converted into an analog signal by the D / A converter 4, displayed on the image monitor 5, and used as an index for moving image editing.

According to the moving picture editing apparatus of the above-described embodiment, the scene switching frame detection section 33 changes the image frame significantly from the series of moving pictures of the video images fetched from the video image generating apparatus 1. Is automatically detected and the time-series image of the changed frame is reduced to a predetermined ratio by the moving image index information creation unit 35 to form a single multi-image, so that only the scene switching frame,
Alternatively, it is possible to view reduced images of scene switching frames in multi-display, and the contents of a series of moving images can be roughly understood without looking at all moving images as in the conventional case. As a result, the efficiency of work such as moving image cutting, processing conversion processing, and indexing is significantly improved.

Further, the contents of the index image for scene switching and its time interval can be grasped on the same screen, which is very efficient when editing a moving image. In other words, in any editing operation such as partial cutting of moving image material, change of time sequence, and moving image editing of a specific scene, it is necessary to plan not only the target image information but also the time information. Since the scene time change time shown in the present invention is displayed comprehensively, it can greatly contribute to the efficiency of the planned time.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. For example, the reduced image may be displayed at a predetermined speed, instead of fixedly / statically displaying the reduced image multi-screen display and the inter-image change time shown in FIG. At that time, it is displayed at a speed corresponding to the change time tnn + 1, i. Further, the change time tnn + 1, i simultaneously displayed with the image may be displayed not only as a numerical value but also as combined marker information that moves with time.

[0023]

According to the invention described in claim 1, which has been described in detail above, an image in which scenes are switched is automatically detected.
Eliminates the trouble of searching for images whose editor's scenes have been switched,
Further, since the image is created as moving image index information, it is possible to easily search for another moving image based on the image in which the scene is switched, and it is possible to provide an image editing apparatus that improves the efficiency of editing work.

According to the second aspect of the invention, since the time information of the image in which the scenes are switched is created as the moving image index information, the efficiency of editing work is improved as compared with the first aspect. Can be further improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a moving image editing apparatus of the present invention.

2 is a display example of moving image index information by the device shown in FIG. 1. FIG.

[Explanation of symbols]

 1 Video Image Generator 2 A / D Converter 3 Video Index Information Creation Unit 4 D / A Converter 5 Image Monitor 31 First Image Memory 32 Second Image Memory 33 Scene Switching Frame Detection Unit 34 Scene Switching Frame Time measurement section 35 Video index information creation section

Claims (2)

[Claims] 1. A storage unit for storing a plurality of sequentially input moving images, a detection unit for detecting an image in which scenes are switched using the plurality of moving images stored by the storage unit, and the detection unit for detecting the images. A moving image editing apparatus comprising: moving image index information creating means for creating an image as moving image index information. 2. A measuring means for measuring a time interval between the images detected by the detecting means, wherein the moving image index information creating means sets the time interval measured by the measuring means together with the image detected by the detecting means. The moving picture editing apparatus according to claim 1, wherein the time information based on the moving picture information is also created as moving picture index information.