JPH07244920A - Video editing device - Google Patents

Abstract

PURPOSE:To facilitate program searching of an optional position and to prevent the occurrence of a time lag when reproduction and stoppage are operated by different buttons in a video editing device using a random accessible recording medium such as a disk and a semiconductor memory. CONSTITUTION:A pressure sensor 106 detecting its operation pressure is attached to a pointing device 105. An area of a reproducing button of a right direction or a left direction on an operation picture is specified temporarily by the pointing device 105. The pressure sensor 106 detects the pressure that the pointing device 105 press-operates the area, and controls so that the larger the detected pressure is the quiker a reproducing speed of the video data read out from a recording medium 103 and the smaller the detected pressure is the later the reproducing speed becomes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video editing apparatus using a randomly accessible recording medium such as a disk or a semiconductor memory.

[0002]

2. Description of the Related Art A conventional edit control device, particularly a home edit control device, basically controls a tape deck to perform editing, and it takes a considerable time to find a position at an arbitrary position. It was a requirement.

In order to solve this inconvenience, a method has been proposed in which a video signal is digitized and recorded on a disk (magnetic disk, magneto-optical disk) or semiconductor memory, and the signal is handled. By using such a randomly accessible recording medium, a desired position can be quickly searched.

[0004]

Although such a technique has come to be used in a personal computer, its user interface is as shown in FIG. 7, for example.

In FIG. 7, 800 is an operation screen of the display device, 801 is a video screen, and 802 is a control button for performing basic operations such as reproduction, stop, fast forward, and rewind.

When a user wants to play a video and stop it at a desired position, it is necessary to press a button at a position different from that at the time of starting the playback, and moreover, the button is touched only by being displayed on the screen. No clue is given.

Therefore, the editor once moves the line of sight from the video screen 801 to the control button 802,
So make sure you are pointing to the stop button,
After that, it is necessary to return the line of sight to the video screen 801 to check the moving image and press the stop button to stop the image.

Therefore, there is a time lag between the time when the user wants to stop the vehicle and the time when the actual stopping operation is performed.

Another conventional example is shown in FIG. In FIG. 8, 900 is an operation screen of the display device,
Reference numeral 901 is a video screen, 902 is a control button for performing basic reproduction and stop operations, and 903 is a slide bar for displaying an arbitrary position in a certain cut in a moving image.

However, since the range in which the slide bar 903 can be moved is constant, when a long time is cut, the time elapses in the moving image for the same moving distance of the slide bar 903 becomes longer, and the slide bar 903 moves arbitrarily. It is difficult to adjust the position.

The present invention was devised in view of such circumstances, and facilitates cueing at an arbitrary position in a video editing apparatus using a randomly accessible recording medium such as a disk or a semiconductor memory. , It is intended to prevent the occurrence of a time lag when operating the play and stop with different buttons.

[0012]

[Means for Solving the Problems]

(1) The video editing apparatus according to claim 1 of the present invention is a video editing apparatus that uses a randomly accessible recording medium such as a disk or a semiconductor memory, and a pointing device for instructing various operations and a pointing device for the pointing device. A pressure sensor that is attached to detect the operating pressure of the pointing device, and controls the playback speed of the video data read from the recording medium according to the pressure detected after designating a predetermined area on the operating screen with the pointing device And means.

(2) A video editing apparatus according to a second aspect of the present invention is a video editing apparatus using a randomly accessible recording medium such as a disk or a semiconductor memory,
Pointing device for instructing various operations, means for detecting the distance of the pointing device moved after designating a predetermined area on the operation screen with the pointing device, and video data read from the recording medium according to the detected distance And a means for controlling the playback speed of the.

[0014]

[Action]

(1) In the video editing apparatus according to claim 1, once a predetermined area of the operation screen is designated by the pointing device, thereafter, the pressure sensor detects the pressure applied to the pointing device, and the pressure is reproduced as a moving image. It is possible to operate so as to stop the moving image at an arbitrary position by reflecting on the speed.

(2) In the video editing apparatus according to the second aspect, once a predetermined area of the operation screen is designated by the pointing device, thereafter, the distance at which the pointing device is moved is detected, and the distance is detected as a moving image. The moving image can be operated to be stopped at an arbitrary position by reflecting it on the reproduction speed.

[0016]

Embodiments of a video editing apparatus according to the present invention will be described below in detail with reference to the drawings.

[First Embodiment] The first embodiment is claim 1
2 is an embodiment of a video editing device according to the present invention. FIG. 1 is a block diagram showing a schematic configuration of the video editing apparatus of the first embodiment.

In FIG. 1, reference numeral 101 denotes a recording medium 103 that digitizes and compresses an input video signal.
And a compression / expansion unit that expands the video data from the recording medium 103 and converts it into an analog video signal, 102 is a display device such as a TV (CRT) or LCD, 103 is a hard disk, a magneto-optical disk, or a semiconductor memory A recording medium such as a flash memory, a CPU for controlling the entire system, a 105
Is a pointing device for giving operating instructions,
A pressure sensor 106 is attached to the pointing device 105 and detects a pressure applied to the pointing device 105.

The input video signal is digitized and compressed by the compression / expansion unit 101 and then recorded on the recording medium 10.
It is recorded in 3.

When the video data recorded on the recording medium 103 is reproduced, the video data is read from the recording medium 103 to the compression / expansion unit 101, expanded, converted into an analog video signal, and output to the display device 102. To do.

In the above recording / reproducing, the CPU 10
4 controls the compression / decompression unit 101 and the recording medium 103. An instruction as to how to control is given by a keyboard or pointing device 105 (not shown).

An operation screen 400 as shown in FIG. 2 is prepared as a user interface for reproducing video data on the display device 102. In FIG. 2, 4
01 is a video screen, 402 is a slide bar for designating a rough position in a certain cut, 403 is a control button for basic operations such as play, stop, fast forward and rewind, and 404 is an arbitrary position. It is a play button that also has the function of cueing. In the play button 404, a right-pointing triangular button 404a is for performing forward reproduction,
The leftward triangular button 404b is for performing reproduction in the reverse direction.

The reproduction control is performed as follows.

When trying to play in the forward direction, if the pointing device 105 is a pen, the pen is pressed to the right-side play button 404a, and if the pointing device 105 is a mouse, to the right-side play button 404a. Place the cursor and press the mouse button. The pressure of the operation at that time is detected by the pressure sensor 106, and the reproduction speed is controlled according to the detected pressure.

In this case, the relationship between the pressure and the reproduction speed is set in advance as shown in FIG. The reproduction speed does not have a linear relationship with the pressure but has a characteristic that it changes stepwise. The pressure range for 1 × speed is relatively wide.

The higher the pressure for the 1 × speed, the faster the feed, and the lower the pressure for the 1 × speed, the slower the feed speed.

Therefore, a slight pressure change is not immediately reflected in the reproduction speed, and the reproduction speed can be changed only when the pressure is clearly changed. For this reason,
Good operability can be obtained.

In addition, it is possible to advance the frame by poking it with a pen for a short time, which allows an arbitrary position in the cut to be specified accurately.

When trying to play in the reverse direction, the playback button 404b pointing left with the pointing device 105 is used.
To operate. The relationship between the pressure and the reproduction speed is the same as above, and the same frame advance is possible.

As described above, the cueing at an arbitrary position can be accurately and easily performed. At the time of this cueing, the playback button 4 facing right with the pointing device 105.
04a or the play button 404b pointing to the left once, after that, since the playback speed can be skillfully controlled by the pressure applied to the pointing device 105, it is not necessary to keep an eye on the hand, so that the eyes can be read from the video screen 401. It is possible to accurately perform cueing at an arbitrary position with good operability without releasing. There is no need to create a time lag between the time you want to stop and the time you actually start the stop operation.

[Second Embodiment] This second embodiment is claimed in claim 2.
2 is an embodiment of a video editing device according to the present invention. FIG. 4 is a block diagram showing a schematic configuration of the video editing apparatus of the second embodiment.

In FIG. 4, reference numeral 301 denotes a recording medium 303 which digitizes and compresses an input video signal.
A compression / decompression unit for decompressing video data from the recording medium 303 and converting it into an analog video signal, 302 is a display device such as a TV (CRT) or LCD, and 303 is a hard disk, a magneto-optical disk, or a semiconductor memory. A recording medium such as a flash memory, a CPU for controlling the entire system, a 305
Is a pointing device for giving an operation instruction, and a mouse, a tablet, or the like can be used as the pointing device 305.

The input video signal is digitized and compressed by the compression / expansion unit 301 to be recorded on the recording medium 30.
It is recorded in 3.

When reproducing the video data recorded on the recording medium 303, the video data is read from the recording medium 303 to the compression / expansion unit 301, expanded, converted into an analog video signal, and output to the display device 302. To do.

In the above recording / reproducing, the CPU 30
4 controls the compression / decompression unit 301 and the recording medium 303. An instruction on how to control is given by a keyboard or pointing device 305 (not shown).

An operation screen 600 as shown in FIG. 5 is prepared as a user interface for reproducing video data on the display device 302. In FIG. 5, 6
01 is a video screen, 602 is a slide bar for designating a rough position in a certain cut, 603 is a control lever for performing a fine cue, 604 is a basic playback,
These are control buttons for operations such as stop, fast forward, and rewind.

The reproduction control is performed as follows.

Basically, the rectangular frame of the control lever 603 is designated by the pointing device 305, and the pointing device 305 is moved rightward or leftward from there, and the moved distance is reflected in the reproduction speed. . First, if it is within the rectangular frame of the control lever 603, regardless of the position specified by the pointing device 305, depending on the direction and the distance from which it is moved to the left or right,
Control the playback direction and speed. Designating with the pointing device 305 means touching the operation screen 600 with a pen and pressing a button with a mouse. When the pointing device 305 is moved to the right, normal reproduction is performed, and when it is moved to the left, reverse reproduction is performed. Or vice versa.

In the above case, the relationship between the moving distance of the pointing device 305 and the reproduction speed is set in advance as shown in FIG. The playback speed does not have a linear relationship with the distance moved, but has the characteristic of changing stepwise. The range for 1x speed is relatively wide. The standard for measuring distance is 0 in the center
, And the distance increases in the rightward and leftward directions as the distance from 0 increases. The distance becomes larger than the distance with respect to the 1 × speed, the fast-forwarding is performed, and the distance becomes smaller than the distance with respect to the 1 × speed, the speed becomes slower, but both of them change stepwise. Therefore, a subtle change in distance is not immediately reflected in the reproduction speed, and the reproduction speed can be changed only when the distance clearly changes.
Therefore, good operability can be obtained.

Further, it is possible to advance the frame by moving the pointing device 305 closer to 0. By returning the moving distance to 0, the pointing device 305 can be stopped and an arbitrary position in the cut can be accurately specified. it can.

As described above, the cueing at an arbitrary position can be accurately and easily performed. In this cueing, once the pointing device 305 points within the rectangular frame of the control lever 603, after that, the playback speed can be skillfully controlled by the distance that the pointing device 305 moves, so it is necessary to keep your eyes on the hand. Therefore, it is possible to accurately perform cueing at an arbitrary position with good operability without taking the eye off the video screen 601. There is no need to create a time lag between the time you want to stop and the time you actually start the stop operation.

[0042]

【The invention's effect】

(1) According to the video editing apparatus of claim 1, once the predetermined area of the operation screen is designated by the pointing device, the pressure sensor detects the pressure applied to the pointing device, and the pressure is detected as a moving image. It is reflected in the playback speed. In other words, since the playback speed is skillfully controlled by the pressure, once the editor designates it with the pointing device, he does not actually take his eyes off the video screen, and he thinks it should stop at the beginning and then actually stops. It does not cause a time lag until it wakes up, and it is possible to accurately perform cueing at any position with good operability.

(2) According to the video editing apparatus of the second aspect, once a predetermined area of the operation screen is designated by the pointing device, thereafter, the distance moved by the pointing device is detected, and the distance is detected as a moving image. Reflected in the playback speed of. In other words, the playback speed is skillfully controlled by the distance the pointing device is moved, so once the editor has specified the pointing device, he / she will not stop his eyes from the video screen and then stop at the beginning. A time lag does not occur until the actual stop operation is performed, and it is possible to accurately perform cueing at an arbitrary position with good operability.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a video editing apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an operation screen for a user interface in the first embodiment.

FIG. 3 is a characteristic diagram showing the relationship between the pressure detected in the first embodiment and the reproduction speed.

FIG. 4 is a block diagram showing a configuration of a video editing apparatus according to a second embodiment of the present invention.

FIG. 5 is a diagram showing an operation screen for a user interface in the second embodiment.

FIG. 6 is a characteristic diagram showing the relationship between the pressure detected in the second embodiment and the reproduction speed.

FIG. 7 is a diagram showing an operation screen for a conventional user interface.

FIG. 8 is a diagram showing an operation screen for another conventional user interface.

[Explanation of symbols]

 101, 301 ... Compression / expansion section 102, 302 ... Display device 103, 303 ... Recording medium 104, 304 ... CPU 105, 305 ... Pointing device 106 ... Pressure sensor 400, 600 ... Operation screen 401, 601 ... Video screen 402, 602 ... Slide bar 403, 604 ... Control button 603 ... Control lever

Claims (2)

[Claims] 1. A video editing apparatus using a randomly accessible recording medium such as a disk or a semiconductor memory, and a pointing device for instructing various operations and an operation pressure of the pointing device attached to the pointing device. A video comprising a pressure sensor and means for controlling the reproduction speed of the video data read from the recording medium according to the pressure detected after a predetermined area on the operation screen is designated by a pointing device. Editing device. 2. A video editing apparatus using a randomly accessible recording medium such as a disk or a semiconductor memory, wherein a pointing device for instructing various operations and a predetermined area on the operation screen are designated by the pointing device. A video editing apparatus comprising: a unit that detects a distance of a pointing device that has moved and a unit that controls a reproduction speed of video data read from the recording medium according to the detected distance.