JPH04105475A - Image pickup device - Google Patents

Abstract

PURPOSE:To attain more effective image pickup by devising the device such that a fade area of pickup pattern is designated from the image pickup camera and applying fade-in/fade-out to the inside or the outside of the designated frame. CONSTITUTION:An in-frame out-frame fade image pickup mode changeover switch of a key operation panel 30 activates a switch 28 via a system control 29, an output signal from a memory 21 is inverted through an inverter 27 to change the in-frame fade mode into the out-frame fade mode. With a trigger button depressed, a level is directed gradually to a white or a black level from a reference luminance level according to the selection of a key operation panel switch and after the level reaches the white or the black level, the mode is set to the REC PAUSE mode. The mode transition and the level slope from the reference level are controlled by a command from the system control 29.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an imaging device for processing image signals from a photographing camera, and particularly to an imaging device capable of photographing in fade-in and fade-out modes. .

(Prior art) The fade-in and fade-out technique used in conventional 8mm cine or video cameras is as follows:
As is well known, this was done for screen merging. In other words, in the case of fade-in, the entire screen, white screen, or black screen gradually appears on the imaged screen over time.
When the fade-in moment is finished, the entire image appears and becomes a through (reference) screen. Conversely, in the case of fade-out mode, the entire screen would start out as a through screen, gradually change to a white screen or a black screen over time, and then become a white or black screen at the end of the fade-out mode.

FIG. 2 shows an example of screen transition in the conventional fate mode shooting as described above, using an example of a cartoon character. (1)
From (3) Wait, it fades out and the "Rabbit-san" image is taken through (1) and gradually becomes fainter as time passes.2)
, disappears at the end of Fate Mortout (3).

Next, step in from (4) to (5), and (4)
, according to (5), the overall image gradually becomes darker and becomes H1,
At the end of the fade-in motion, it returns to the through image, or the conventional fate technique is used.

[Invention or problem to be solved ■]

However, since the conventional method of Fate images as described above is simple and common, and lacks any freshness, the present invention does not improve this simple Fate Mort shooting technique to bring about changes. The purpose of this invention is to photograph the region where the fade changes with a camera, and to make it possible to fade in and out only within or outside the frame obtained from this shooting.

[Failure to solve the problem]

Therefore, in the present invention, first, a designated frame to be used during fade is photographed with a photographing camera, and this image signal is stored in a memory as a binary signal through analog-digital conversion. Next, among the video signals obtained by shooting a video with a camera, a control signal generator for gradually increasing or increasing the level of the luminance signal (or color signal) and a control signal generator for gradually boosting or boosting the level of the luminance signal (or color signal and a fixed data generator for fixing the data, the output signals from the two generators are switched in accordance with the output signal from the memory, and the gain of the luminance signal (or chrominance signal) amplifier is controlled by this output signal. By configuring it to be variable, it is possible to fade in black and white or color only within/outside a specific frame, without covering the entire screen.

It attempts to enable a fade-out mode.

(C) Effect) With the configuration of the present invention as described above, an effective change can be made to the conventional common fate mode.

〔Example〕

The present invention will be explained below based on examples.

(Fate Mortate Image) FIG. 3 shows an example of screen transition in an embodiment of in-frame fade mode photography according to the present invention from the side of a cartoon character. (
1) to (3) are the fade-out mode, and (4) to (6) are the fade-in mode.

That is, in the Feldaud photography from (1) to (3), only the area outside the designated frame is photographed in through view, and only the subject within the frame disappears over time. On the other hand, from (4) to (
In the fade-in shooting of 6), the image appears only within the designated frame over time. In addition, Fig. 4 shows a view equivalent to Fig. 2 in the case of out-of-frame fate photography, as opposed to the in-frame fate photography in Fig. 3.
to (3) or fade out mode, (4) to (
Up to 6), it is a fate-in-mortal. That is, (]
) to (3), the fade-out shooting involves shooting within the specified frame or through the scene, and the scenery outside the frame disappears over time.Fade-in shooting from (4) to (6) It's a landscape outside the frame that appears over time.

The area specification within/outside the above frame is shown in Fig. 5 (1).

As shown in (2), first take a picture of the pattern with the part where you want the fade effect filled in black, and then remove the stiffness.
It is stored in a memory shown in FIG. 1, which is a circuit block diagram of an embodiment of a photographing device according to the present invention, which will be described later. In the case of designation within the frame, the inside is made black as shown in (1), and in the case of designation outside the frame, the outside is made black as shown in (2). In the circuit block diagram of FIG. 1, which will be described later, the configuration is such that correspondence between inside and outside of the frame can be made depending on the pattern of the changeover switch.

(Fade Operation) An example of a time chart of each fade-out/in operation is shown in FIGS. 6(1) and (2). Figure (1) shows the fade-out photographing mode, the horizontal axis is the time axis, and the vertical axis represents the brightness level, which shows the white level, reference level (through), and black level. When the trigger is turned on at an arbitrary time, after a predetermined time,
The fade-out RFC (recording) mode is entered, and the level gradually changes to white (or black as shown by the chain line) over time. After the fade-out operation is completed and after a predetermined period of HA, RECPAUSE (recording pause) is selected. Exit the mote.

Figure (2) shows the fade-in shooting mode, and when the trigger is turned on, after a predetermined time has elapsed, the fade-in REC mode is entered, and as time passes, the level gradually changes from white (or black indicated by a dotted line) to through shooting. After the fade-in operation is completed and a predetermined period of time has elapsed, the RECPAUSE lever mode is terminated.

(Circuit Configuration) At the same time, details of one embodiment of the circuit configuration of the imaging device according to the present invention will be described based on the block diagram of FIG.

The subject image is captured by CC through a photographic lens 4 and a color filter 5.
The image is formed on a photoelectric conversion element 6 such as D.

The video signal of the CCD 6 is amplified by an amplifier 7, and among the amplified video signals, a color (chroma) signal (hereinafter referred to as C signal) is processed by a color signal processing circuit 8, and a luminance signal (hereinafter referred to as Y4: No. 3) is subjected to signal processing by the luminance signal processing circuit 9. The Y signal from the Y signal processing circuit 9 is analog/
Digital (A/D) conversion #2 o “0” and “1” 2
The memory 21 is configured to store the binary signal which is converted into a digitized signal.

The key operation panel 3o includes a felt switch for setting the fade-in or fade-out operation mode, a memory inverter switch for inverting the output signal from the memory 21, and an operation (PLAY) switch for specifying the recording/playback operation mode. , record (RFC), pause (PAUSE
), fast forward (FF), fast reverse (FR), stop button, etc. The system control 29 receives instructions from the key operation panel 3o and sends control signals to each circuit according to each mode.

On the other hand, the A control signal generator 13 outputs audio (audio, A control signal generator 13).
) is for controlling the signal level. Further, the C control signal generator 14 controls the level of the color signal and Yf!
7J control signal generation signal generator 16 Controls the level of the signal. Each of these signal generators 13, 14, 16 level changes are:
It is designed to change over time. The C fixed data generator 15 is used to fix the color signal level, and the Y fixed data generator 17 is used to fix the luminance signal level.

The C control signal switching circuit 18 is connected to the C control signal generator 14.
is for switching the output signal from the C fixed data generator 15 in accordance with the output from the memory 21,
The Y control signal switching circuit 19 is connected to the Y control signal generator 16.
The output signals from the Y fixed data generator 17 and the memory 2
Switch according to the output from 1.

Next, the A variable gain amplifier 10 is an amplifier that can vary the gain of the audio signal 43 from the preceding audio processing 3 in accordance with the output signal from the control signal generator 13. The C variable gain amplifier 11 is an amplifier capable of varying the gain of the color signal output from the color signal processing 8 in accordance with the output signal from the C control signal switching circuit 18, and the Y variable gain amplifier 12 is an amplifier capable of varying the gain of the color signal output from the color signal processing 8 in accordance with the output signal from the C control signal switching circuit 18. This amplifier is capable of varying the gain of the luminance signal output from the signal processing 9 in accordance with the output No. 43 from the Y control signal switching circuit 19.

Microphone 1 is a microphone for recording audio, amplifier 2 is an amplifier for amplifying this recording, audio processing 3 is an audio signal processing circuit, and adder 24 is a C variable gain amplifier 11 and a Y variable gain amplifier 12. It is used to synthesize signals from. A sync generator 22 generates a horizontal sync or vertical sync signal. Adder 25 adds the synchronization signal from synchronization generator 22 and the output signal from adder 24 . Further, the adder 23 is for adding the output signals from the A variable gain amplifier 10 and the adder 25.

Meanwhile, a video table recorder (VTR) 32 records the output signal from the adder 23, that is, a video signal in which an audio signal, a color signal, a luminance signal, and a synchronization signal are mixed. Further, the inverter 27 is for inverting the output signal of the memory 21, and the switch 28 switches between the output of the memory 21 and the output of the inverter 27 in accordance with the output from the system control 29.
It is output to the control signal switching circuit 18 and the Y control signal switching circuit 19.

The display signal generator 31 displays the mote in accordance with the control signal from the system control 29, and the adder 26 is for adding the output signals from the adder 25 and the display signal generator 31. Electronic viewfinder (E
VF) 33 is a monitor means that displays images and each mote.

(Fate movement sequence) First, in step S1, FIG. 5(1).

(2) Photograph the white and P pattern images inside or outside the frame, respectively. The video signal of the object passes through a lens 4, a color filter 5, a CCD 6, and an amplifier 7, and a Y signal is extracted by a luminance signal processor 9. ) Binary conversion is performed, and step S
2 and stored in the memory 21. At the same time, the switch 28 is switched via the system control 29 using the frame/outside frame fate shooting mode changeover switch (not shown) on the key operation panel 30 on the step S3, and the output from the memory 21 is outputted through the inverter 27. The signal is reversed and in-frame fate mode switches to out-of-frame fate mode.

At the same time, the designation of the fade-out/fade-in shooting mode in step S4 is performed using a group of switches (not shown) on the key operation panel 30, and when the trigger button is pressed in step S5, the designation of the fade-out/fade-in shooting mode is performed according to the time chart illustrated in FIG. A fade motion is performed (step S6). That is,
After a predetermined period of time, when the REC mode is entered, for example, in the case of Fade Out 1, the brightness level gradually changes from the standard brightness level (the captured image appears as it is, i.e., the through state) to white or black according to the selection of the forward tilt operation panel switch. After reaching the white or black level, RECP AU S
It becomes E mode. Control of this mote transition and level ramp from the reference level is commanded by system control 29. A fixed level for white or black is set by a Y fixed data generator 17, and level ramping is performed by a Y control signal generator 16.

Selection between these two is made by 'o' from the memory 21.
", "1°" is performed by the Y control signal switching circuit 19 in response to the 1°" signal. The output signal is “1”
If it is "0", the output signal from the Y control signal generator 16 is input to the Y variable gain amplifier 12. By varying the gain of this amplifier 12, the level of the luminance signal is changed. is varied, resulting in a fade-out image change.

The luminance signal from the Y variable gain amplifier 12 and the chrominance signal from the C variable gain amplifier 11 are added by an adder 24, and a synchronization signal from the synchronization generator 22 is added by an adder 25 to create a video signal. This is mixed with the audio signal from the A'oJ variable gain amplifier 10 in an adder 23,
The video is recorded on the VTR 32 (step S6). On the other hand, the EVF 33 can monitor the mode information from the display signal generator 31 as well.

On the other hand, in the fade-in photography as well, the Y control signal switching circuit 19 switches between the white (or black) level and the through photography in accordance with the output signal from the memory 21. The sequence of getting drunk is substantially the same as that in the @Jself sphate out mode, so a redundant explanation will be omitted.

(Other Fate Morts) The present invention allows not only the above-described fade motes of white and black brightness, but also various selections regarding color (chroma).

This is a C fixed data generator 15 and a C control signal generator 14.
Accordingly, the C control signal switching circuit 18 is switched in response to the output signal from the memory 21, and the C variable gain amplifier 1 is switched.
This is possible by varying the gain of 1. These colors fade in.

The fade-out mode is a system in which luminance signal processing is changed to chrominance signal processing in accordance with the explanation for the luminance signal described above, so a redundant explanation will be omitted.

Note that one feature of the system of the present invention is that it does not perform fade-in or fade-out of the audio level.

(Effects of the Invention) As described above, according to the present invention, it is possible to specify the fade area on the shooting screen from the imaging camera, and it is possible to fade in or out within or outside this specified frame. Because of this structure, it is possible to change the conventional and simple fatemort to make it more effective.

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram of an embodiment of an imaging device according to the present invention, FIG. 2 is an example of a conventional image transition in a fade mode, and FIG. 3 is an example of an in-frame fate mode image transition of the present invention. Figure 4 shows an example of transition of the out-of-frame fade function of the present invention, and Figure 5 (1
), (2) is an example of a diagram specifying each area inside/outside the frame, and FIG. 6 (1). (2) is a time chart of each phase-out/in operation, and FIG. 7 is a sequence flowchart of the fade operation. 6... CCD (imaging device) 8... Color signal IA embedded circuit 9... Brightness processing circuit 11... Color variable gain amplifier 12... ... Brightness variable gain amplifier 14 ... Color fixed data generator 15 ... Color fixed data generator 16 ... Brightness control signal generator 17 ... Brightness Fixed data generator 18...
・Color fixed data switching circuit 19...Brightness signal switching circuit 20----, ・A/D converter 21...Memory ↑ ↑

Claims (2)

[Claims] (1) A memory for separating the video signal from the image sensor into a color signal and a luminance signal, binarizing the separated luminance signal by analog-digital conversion, and storing the binarized luminance signal. a brightness control signal generator for gradually increasing or decreasing the brightness signal level of the video signal from the subject; a brightness fixing data generator for fixing the brightness signal level to black or white; a brightness control signal switching circuit for switching the output signals from both generators in accordance with the output signal of the memory means; and a brightness control signal switching circuit for controlling the gain of the brightness signal in response to the output signal of the brightness control signal switching circuit. An imaging device capable of photographing in fade-in and fade-out modes, characterized by comprising a brightness variable gain amplifier. (2) A memory for separating the video signal from the image sensor into a color signal and a luminance signal, binarizing the separated luminance signal by analog-digital conversion, and storing the binarized luminance signal. a color control signal generator for gradually increasing or decreasing the color signal level of the video signal from the subject; a color fixing data generator for fixing the color signal to a predetermined color; a color control signal switching circuit for switching the output signal of the generator in response to the output signal of the memory means; and a variable gain for controlling the gain of the color signal in response to the output signal of the color control signal switching circuit. An imaging device capable of photographing in fade-in and fade-out modes, characterized by comprising an amplifier.