JPH0720213B2 - Camera integrated VTR and video camera - Google Patents

Description

TECHNICAL FIELD The present invention relates to a camera-integrated VTR and a video camera,
In particular, the present invention relates to a camera-integrated VTR and video camera capable of recording a predetermined title when shooting a subject.

BACKGROUND ART In a camera-integrated VTR (camcorder), at the same time as a subject is photographed, a title corresponding to the scene is overlaid and recorded on a screen.

As this type of device, for example, a device having a so-called superimpose function has been proposed in which a photographer shoots a title with a camera in advance and inserts the title when necessary while shooting a subject.

In this device, a title created or prepared by the photographer is photographed in advance, and the screen of the photographed title is digitized and stored in the memory in the device.
The photographer was able to call the title stored in the memory, insert it into the scene, and record it when a scene in which a title was desired to be inserted was taken while shooting the subject.

However, in the conventional apparatus having the superimpose function, the title stored in the memory in advance is inserted into the screen being shot in the same size. Therefore, if the title manuscript is small, such as a train ticket or an amusement park entrance ticket,
Could not be used as a title.

Further, since the title stored in the memory is inserted as it is, it is not possible to perform an applied operation such as zooming out the title or erasing while defocusing the focus of the title portion.

Aim of the Invention The object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide a camera-integrated VTR and a video camera capable of recording a title in a desired format when photographing a subject.

DISCLOSURE OF THE INVENTION According to the present invention, a camera-integrated VTR having image pickup means for converting an input optical image into a video signal and recording means for recording the video signal on a recording medium is provided with a title converted by the image pickup means. Storage means for storing the video signal, control means having at least one transformation control data for transforming the video signal of the title into a predetermined shape, selection means for selecting the transformation control data, and modification control data by the selection means. And a calculation means for performing a calculation for transforming the video signal of the title into a predetermined shape when is selected, the title stored in the storage means when the transformation control data is selected by the selection means by the operator. The video signal of is transformed according to the calculation result of the calculation means, and together with the video signal obtained by the image pickup means,
It is possible to record on a recording medium.

Further, according to the present invention, the video camera having the image pickup means for converting the input optical image into a video signal and the output means for outputting the video signal is a storage means for storing the video signal of the title converted by the image pickup means. A control unit having at least one transformation control data for transforming the video signal of the title into a predetermined shape; a selection unit for selecting the transformation control data; and a selection of the transformation control data by the selection unit. A transformation means for performing transformation for transforming the video signal into a predetermined shape, and when the transformation control data is selected by the selection means by the operator, the video signal of the title stored in the storage means is operated by the computation means. It is deformable according to the calculation result and can be output together with the video signal obtained by the image pickup means.

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

FIG. 1 shows a schematic configuration diagram of an embodiment in which the present invention is applied to a camera-integrated VTR. The camera-integrated VTR 100 according to the present embodiment has a recording function and a reproducing function in addition to the imaging function. The camera-integrated VTR 100 is a camera equipped with a so-called superimpose function, and has a title memory 64 and an arithmetic unit 66 as shown in FIG. 2, and the titles stored in advance in the tile memory 64 are photographers. Is converted into a selected format such as enlargement, reduction, or zoom-out, and is inserted into the shooting screen.

The imaging unit 10 has an optical system lens (not shown) and a solid-state imaging device such as a CCD, and converts an optical image of a subject formed through the lens according to an instruction of the system control unit 20 into a video signal, a luminance signal, and a color difference. Signal and a standard color television format composite video signal including a sync signal, and the composite video signal is converted to a digital titler section.
It is sent to the recording unit 14 via 12.

The digital titler unit 12 is connected to the imaging unit 10, the recording unit 14, and the system control unit 20. As will be described later, the control signal sent from the system control unit 20 converts the title data stored in the title memory 64 into the format selected in the arithmetic unit 66, and the converted data stored in the video memory (VRAM) 68. Data is read out and sent to the recording unit 14 so that these signals are mixed in order to display the converted title read out on the image represented by the video signal input from the imaging unit 10 in a superimposed manner. .

Referring to FIG. 2, the structure of the digital titler section 12 is shown in more detail. The digital titler section 12
As shown in FIG. 2, the A / D converter 62, the title memory 64,
It has a calculation unit 66, a video memory (VRAM) 68, and a D / A conversion unit 70.

The A / D conversion unit 62 converts the composite video signal of the title input from the imaging unit 10 into a digital signal and
Send to 64.

The title memory 64 stores the title data input from the A / D conversion unit 62.

The calculation unit 66 calculates the pixel pattern so that the title data stored in the title memory 64 is in the format selected by the operation unit 22 in accordance with the control signal sent from the system control unit 20. For example, when the selected format is enlargement, the calculation unit 66 obtains a pixel pattern for outputting title data according to the set enlargement ratio.

The VRAM 68 converts the title data according to the calculation result of the calculation unit 66 according to the instruction from the system control unit 20, and sends the converted title data to the D / A conversion unit 70. The D / A conversion unit 70 converts the digitized title data sent from the VRAM 68 into an analog signal, and the recording unit 14
Send to.

The timing generator 74 is connected to the A / D conversion unit 62, the title memory 64, the VRAM 68, and the D / A conversion unit 70, and sends a temporal timing signal in each process to each unit according to an instruction from the system control unit 20. .

The signal output from the digital titler unit 12 and mixed with the video signal from the imaging unit 10 is also sent to the electronic viewfinder (EVF) 32, and the image in which the title is superimposed on the captured image is displayed in the electronic viewfinder. Displayed on 32.

Returning to FIG. 1, the recording unit 14 modulates the video signal input from the imaging unit 10 and the digital titler unit 12 into a signal for recording a video tape, and outputs the signal to the tape recording mechanism 24. The tape recording mechanism 24 has a rotary head cylinder necessary for recording video and audio signals on a video tape, a tape drive mechanism such as a motor, and a tape loading section for loading a video cassette tape. It is driven according to the input control signal.

The recording unit 14 supplies to the tape recording mechanism 24 a video signal in which the titles formed by the imaging unit 10 and transformed into a predetermined shape by the digital titler unit 12 are mixed in accordance with a control signal input from the system control unit 20. To do. The tape recording mechanism 24 records the video signal on the video track of the video cassette tape loaded in the tape loading unit via the video head.

The system control unit 28 is advantageously composed of a microcomputer (CPU), and includes an imaging unit 10, an operation unit 22,
The recording unit 14, the digital titler unit 12, and the tape recording mechanism 24 are connected. System control unit 20
Sends a control signal to each unit of the VTR 100 according to the connection state of each switch arranged in the operation unit 22.

The operation unit 22 is a camera-integrated type as shown in FIG.
A recording switch 56, which is arranged on the outer surface of the casing of the VTR 100, for inputting the start and end of recording, a title memory switch 52 for storing a title in the title memory 64,
Title recording switch 53 for inserting a title into the shooting screen, title transformation mode selection switch for selecting the output format of the title stored in title memory 64
54, a title transformation execution switch 55 for transforming the title in the selected mode.

The title transformation mode selection switch 54 has a function of instructing two operations. The first function is to input a title stored in the title memory 64 and an instruction for causing the EVF 32 to output a mode menu for transforming the title. The second function is
This is for selecting and confirming a desired mode from the mode menu output to the EVF 32.

Each of these switches is operated by the photographer.

The electronic viewfinder (EVF) 32 has a small cathode ray tube, is formed by the image pickup unit 10, and has a digital titler unit 12.
The image based on the image pickup signal input via is displayed. Alternatively, a plurality of titles selected by the digital titler unit 12 are displayed, and a video signal in which titles in the format selected by the digital titler unit 12 are mixed is received and the image is output.

The operation of the camera-integrated VTR 100 as described above will be described.

Referring to FIG. 4, there is shown an example in which a desired title is enlarged and inserted in the shooting screen. In this example, the character title “Wedding” that has been recorded in advance is enlarged and inserted into the imaging screen.

First, the operator uses the camera 100 to record the title.
Turn on the main power source (not shown). When the main power is turned on,
The system control unit 20 outputs a control signal to the image pickup unit 10 to enable recording. This state continues until the main power is turned off, regardless of whether or not recording is being performed.

Next, the operator looks into the EVF 32 as shown in FIG. 4A, brings the word "wedding" written in small characters to the upper left corner of the screen, and operates the title memory switch 52. When the title memory switch 52 is connected,
Reference numeral 10 converts an optical image of “wedding”, which is the title characters formed through the lens, into a video signal, and outputs the video signal to the digital titler unit 12. The input analog video signal of the character “wedding” is digitized by the A / D converter 62 and stored in the title memory 64.

In this way, the title to be inserted in the shooting screen is VTR
Stored in 100 title memories 64.

The operator operates the recording switch 56 to record a subject. When the recording switch 56 is connected, the system control unit 20 controls the recording unit 14 to start recording a captured image on the video cassette tape loaded in the tape recording mechanism 24.

The operator operates the title transformation mode selection switch 54 in order to enlarge the characters of the recorded title and insert them into the shooting screen. As shown in FIG. 4B, when the title transformation mode selection switch 54 is connected, the system control unit 20 displays the title stored in the title memory 64.
A mode menu for calling the DA converter 70 and transforming the title is similarly called from the title memory 64 to the DA converter 70 and output to the EVF 32. This makes the 4B
The title and mode menus are displayed on the EVF 32 as shown. At this time, the EVF 32 displays a cursor 82 for the operator to confirm the mode in any mode.

The operator selects a desired mode from the mode menu displayed on the EVF 32. In the case of this example, the operator operates the title transformation mode selection switch 54 to move the cursor 82 to "Kakudai". After confirming one of the cursors 82,
The title transformation execution switch 55 is operated. When the title transformation execution switch 55 is connected, the system control unit 20 sends the title data stored in the title memory 64 to the calculation unit 66. Further, the arithmetic unit 66 is controlled to perform an arithmetic operation for enlarging the title data of the character "wedding" sent from the title memory at a predetermined enlargement ratio. After the calculation, the calculation result is stored in the VRAM 68, is sent to the recording unit 14 and the EVF 32 through the DA conversion unit 70, and the title data is enlarged as shown in FIG. 4C.

Further, the operator operates the title recording switch 53 in order to insert the title converted into the desired format into the imaging screen. When the title recording switch 53 is connected, the system control unit 20 calls the enlarged digital title data stored in the VRAM 68, and the D / A conversion unit 70
After being converted to analog by, the mixed with the video signal input from the imaging unit 10 and sent to the recording unit 14. The recording unit 14 supplies the mixed video signal to the tape recording mechanism 24, and records it on the video track of the video cassette tape loaded in the tape loading unit via the video head. It should be noted that the mixing of the title data and the video signal in the mixing section, that is, the recording of the title, is set to end after a predetermined time has elapsed.

In this way, the enlarged title as shown in FIG. 4C is recorded on the video cassette tape 40 together with the video signal being shot.

FIGS. 5A to 5C and FIGS. 6A to 6C show states when a title is inserted when another mode is selected by the title transformation mode selection switch 54 and executed.

FIG. 5A to FIG. 5C are examples when “Pinout” is selected from the mode menu shown in FIG. 4B. “Pinout” means to gradually shift the focus of the displayed title. In this case, the calculation unit 66 performs a calculation for thinning out the characters "wedding" stored in the title memory 64 at a predetermined thinning rate. The title data is thinned out in a stepwise manner at a thinning rate set to 20% or 40%, for example.

FIGS. 6A to 6C are examples in the case where “zoom out” is selected from the mode menu shown in FIG. 4B. "Zoom out" means to gradually expand the displayed title. In this case, the calculation unit 66 performs a calculation for gradually enlarging the characters of "wedding" stored in the title memory 64 at the set enlargement ratio.

As shown in FIG. 4B, the title mode selection by the title transformation mode selection switch 54 may be "Shushou" or "Ido", and in these cases, calculation is also performed by the control of the system control unit 20. Part 66
Calculation is performed by the reduction ratio set in step 1, and calculation such as coordinate conversion is also performed.

As described above, the camera-integrated VTR 100 according to the present embodiment is equipped with the title memory 64, the arithmetic unit 66, and the VRAM 68. Therefore, the photographer operates the title transformation mode selection switch 54, the title transformation execution switch 55, and the title recording switch 53 when it comes to the shooting scene to be displayed while recording the subject while looking into the EVF 32. The title stored in advance in the title memory 64 can be easily inserted into the shooting screen in a desired format.

In the present embodiment, the present invention has been described by taking the video camera integrated VTR having the recording function and the playback function as an example, but the present invention is not limited to the integrated video camera, but may be a separate type video camera, a disc camera, or the like. It can also be applied to other camera devices.

Effect According to the present invention, a VTR or a video camera with a built-in camera is provided with storage means for storing a video signal of a captured title and control having deformation control data for deforming the video signal of the title into a predetermined shape. The photographer can easily insert the pre-photographed title in a desired format because it has a means and a calculation means for performing a calculation for transforming the video signal of the title into a predetermined shape.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a camera-integrated VTR according to the present invention, FIG. 2 is a block diagram showing in detail a part of the apparatus shown in FIG. 1, and FIG. 3 is a diagram showing the apparatus shown in FIG. FIG. 4A to FIG. 4C are external perspective views, and FIG. 4A to FIG. 4C are views showing an example of the display of the electronic viewfinder during the operation of the apparatus in FIG. 1. FIGS. FIGS. 6A to 6C are diagrams showing another example of the viewfinder display, and FIGS. 6A to 6C are diagrams showing another example of the electronic viewfinder display during the operation of the apparatus of FIG. Explanation of the symbols of the main parts 10 …… Imaging section 12 …… Digital titler section 14 …… Recording section 20 …… System control section 22 …… Operating section 24 …… Tape recording mechanism 32 …… Electronic view finder 64 …… Title memory 66 …… Calculator 68 …… VRAM 74 …… Timing generator

Claims (2)

[Claims] 1. A camera-integrated VTR having image pickup means for converting an input optical image into a video signal, and recording means for recording the video signal on a recording medium, wherein the VTR is converted by the image pickup means. Storage means for storing the video signal of the title, control means having at least one transformation control data for transforming the video signal of the title into a predetermined shape, selection means for selecting the transformation control data, and the selection Means for performing transformation for transforming the video signal of the title into a predetermined shape when the transformation control data is selected by the means, and the transformation control data is selected by the operator by the selection means. The recording medium is transformed together with the video signal obtained by the image pickup means by modifying the video signal of the title stored in the storage means according to the calculation result of the calculation means. Camera integrated VTR, characterized in that the recordable on. 2. A video camera having an image pickup means for converting an input optical image into a video signal, and an output means for outputting the video signal, wherein the camera converts the video signal of the title converted by the image pickup means. Storage means for storing, control means having at least one transformation control data for transforming the video signal of the title into a predetermined shape, selection means for selecting the transformation control data, and the deformation control by the selection means. And a calculation means for performing a calculation for transforming the video signal of the title into a predetermined shape when the data is selected. When the transformation control data is selected by the selection means by the operator, the data is stored in the storage means. The stored video signal of the title can be transformed according to the calculation result of the calculation means, and can be output together with the video signal obtained by the image pickup means. Video camera camera which is characterized.