JPH0437846A - Production of movie by 24 frames/sec video system - Google Patents

Abstract

PURPOSE:To easily, surely and rapidly execute the working process of movie production by matching photographing, picture recording and editing based upon the video system with the reference reproducing speed of a movie film. CONSTITUTION:When a video camera, a video recorder and a video display are modified and the synchronism and phase coupling of these modified units with a film projector is set up, film images are converted into video images at the speed of 24 frames/sec after telecine processing the film and the film can be held at the same state as film reproduction. Thus, problems such as a real time difference between a movie film and video images and the movement, flow and flickers of pictures can be resolved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for recording and reproducing video, and includes two
In addition to shooting, recording, and editing using a 4-frame/second video system, by matching the standard playback speed of movie film, 24 frames/second, the creative work process (mainly editing and dubbing) involved in film production is improved. Easy/
The purpose is to ensure reliability and speed, and to protect the copyright of works.

Conventional video recording and playback requires 2 in color.
It is 9.97 frames/second (generally 30 frames/second), and telecine is mainly seen in the 2-3 pulldown method, and the projection rate is 111! 1 has been modified to the extent that it does not look visually strange, but the following problems remain in principle.

■ Problems with the difference in real time corresponding to each frame of a movie film played at 24 frames/second and a video image played at 30 frames/second.

■ The use of video during the film production process remains problematic in principle due to the problems of actual picture movement, flow, and flicker.

The purpose of the present invention is to produce a movie without the above-mentioned drawbacks (1) and (2), and solves these problems by the method described below.

That is, when telecinening film, the standard projection speed of 2
The problem was solved by setting the rate to 4 frames/second.

24 frames/second video method 0 New and modified standard oscillation for video cameras.

○ Modification of the recording/playback circuit of the video recorder.

○Remodeling of video displays (cathode ray tubes, video projectors).

Setting of synchronization and phase coupling with O-film projector.

Due to these factors, the film image is
It is converted into a video at 4 frames per second and can maintain the same conditions as film playback.

Therefore, the above-mentioned problem (2) is eliminated, and the following effects in movie production are brought about.

First, at the shooting site, by extracting video images from a film camera using this method, the actual images can be recorded and simultaneously played back at 24 frames/second without flickering.
In addition, by appropriately setting the imaging phase between the film camera and video camera, it is useful for recording, playing back, and confirming ``gimmicks'' that cannot normally be captured.

Of course, it is also useful for checking and organizing directors and screenwriters without flickering.

In O-editing, the video editing of this system is easier and faster than the conventional positive editing of film dramas, and there are no errors in film frames or video frames, so it is possible to edit hundreds of films and process them. This will demonstrate enduring accuracy. From so-called preliminary editing,
With this system, the process up to rough deception and all-rush editing will be handled by video. They will also be able to perform acts of expression that include full-fledged video processing, and will be able to express their thoughts in the film process. In particular, stamps can be presented in various versions. These things bring about the involvement of the image of the production staff in the various production formats of Japanese films, starting with the one-camera style, and result in enhanced mutual communication among staff, related parties, advisors, etc. Performing video editing, processing, special effects, etc. in this process makes the system even more effective by: This 24 frame/second video system combines timecode addressing, which is becoming common in today's 30 frames/second video world, with film timecode, which is not yet actively used. If so, you can easily, accurately, and repeatedly perform any task, and self-confirmation becomes easy. *If you combine it with related equipment, you can easily create editing sheets and cut out positives and negatives.

In the field of music creation, due to the features of video, such as its monthly format, simplicity, and ease of adapting to the development of music equipment, presentations that include special processing will expand the time for images and the creation of sonic and electronic images.

○When dubbing, it can be viewed on a large screen using a video projector, etc., and a video recorder can start, stop, and repeat more easily than a conventional film projector, and has high workability. Also, by using them together, you can enhance the expression of even the smallest details.

○In educational research, especially research on movie masterpieces, etc.
In analysis, using this method, it is possible to accurately analyze -pieces, -pieces.

Also, it goes without saying that the film is less likely to be damaged.

O Software services and copyright protection If you look at this method broadly in today's video world, it is a closed system that has the simplicity of video. If this point is kept in mind, it will be useful for preserving private company research materials in video form. Also,
Starting with film libraries in various countries, museums, public institutions, and other so-called membership-based services that are based on the premise of preservation but also make the software available to specific people and institutions, preservation and copyright protection of originals is a necessity. We believe this is a promising method from the perspective of protecting the environment. (By using a card with a PIN code, you can achieve double copyright protection and service improvement.) ○With this system, 2
Even beginners can accurately and quickly check videos of 4-frame rooster animation and cell drawings.

As mentioned above, if we return to today's film production, by using this inexpensive system method, staff work and communication will be expanded, even in areas that had to be closed in a negative sense and craftsmanship due to lack of capital. This is a new method of film production that is rational, scientific, creative, and educational.

Claims (1)

[Claims] 1. A film production method in which film images shot during film production are telecineged at 24 frames per second, video edited, and then conventional positive or negative editing is performed based on the video editing.