JP3214036B2 - Image recording apparatus, image reproducing apparatus, and image recording / reproducing apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called electronic zoom system for enlarging an image by an electronic circuit in an image recording / reproducing apparatus.

[0002]

2. Description of the Related Art FIG. 10 is a diagram showing a configuration of a conventional electronic zoom system. In the figure, 1 is a CCD, 2 is an analog signal processing circuit, 3 is an A / D conversion circuit, 4 is a digital signal processing circuit, 5 is an image enlargement interpolation circuit, 6 is a D / A conversion circuit, and 7 is a video signal output. Terminal. Reference numeral 8 denotes a zoom switch T for enlarging an image, and reference numeral 9 denotes a zoom switch W for reducing an image. Reference numeral 10 denotes a memory included in the digital signal processing circuit. Reference numeral 11 denotes a video unit for recording a video signal.

Next, the operation will be described. The video signal photoelectrically converted by the CCD 1 is converted into an analog signal processing circuit 2
Performs signal processing such as correlated double sampling, AGC, and the like, and is converted into a digital signal by the A / D conversion circuit 3. As the digital signal, data for each field or frame is stored in a memory 10 included in the digital signal processing circuit 4, and video data is called from the memory 10 by the image enlargement interpolation circuit 5 in accordance with the zoom switches 8 and 9, and the pixels, The line-to-line correction is performed, the signal is converted into an analog signal by the D / A conversion circuit 6, and is output to the video signal output terminal 7.

[0004]

In the electronic zoom according to the prior art, since a part of the image signal obtained from the CCD 1 is recorded in the video section 11 after being enlarged, the image signal obtained from the CCD 1 is enlarged. However, there is a problem that information other than the part which cannot be recorded cannot be recorded. Further, when the magnification of enlargement is large, there is a problem that an image becomes coarse.

The present invention has been made in order to solve the above-described problem. In order to record information other than the enlarged portion of the image signal obtained from the CCD 1 at the time of electronic zoom, a video reproducing circuit is provided. It is an object of the present invention to provide an image recording / reproducing apparatus which can enlarge an obtained signal.

[0006]

In an image recording apparatus according to the present invention, an image pickup means for picking up an image, a magnification setting means for setting a magnification for the image picked up by the image pickup means, and some of the captured image, selection means for outputting to said magnification setting means is selected according to the set magnification display device, the image pickup means including a <br/> images that are not selected in the selecting means has captured Recording means for recording the image and the magnification set by the magnification setting means on a recording medium.

Further, in the image reproducing apparatus according to the present invention, a reading means for reading an image and a magnification associated with the image at the time of capturing the image from a recording medium, and temporarily storing the image read by the reading means. An image memory for temporarily storing the image, and a selection unit for selecting a part of the image stored in the image memory according to the magnification read by the reading unit and outputting the selected portion to a display device.

Further, in the image reproducing apparatus according to the present invention, reading means for reading an image and a magnification associated with the image at the time of capturing the image from a recording medium, and outputting the image read by the reading means A first image output unit, an image memory for temporarily storing the image read by the reading unit, and a part of the image stored in the image memory according to the magnification read by the reading unit. Selecting means for selecting the selected image, a second image outputting means for outputting the image selected by the selecting means as a partially enlarged image of the output image of the image outputting means, and the first and second image outputting means And an image switching means for switching the output image to output to the display device.

Still further, an image recording / reproduction according to the present invention
The device temporarily stores the input image.
An image memory and a part of an image stored in the image memory
Is selected according to the input magnification and output to the display device.
Selection means, imaging means for imaging an image, and the imaging means
Setting means for setting a magnification for an image captured by the user
Output the image captured by the image capturing means to the image memory.
The first output means for inputting the power and the magnification setting means.
Second output means for outputting the selected magnification to the selection means;
The imaging hand including an image not selected by the selection means;
Input image from the column and the magnification set in the magnification setting means
A recording means for recording the image on a recording medium, an image,
The magnification associated with the image when the image was captured
Reading means for reading from the first output means, wherein the first output means
Indicates that the image captured by the imaging unit and the reading unit
Output to the image memory by switching between the output image and the
A second output unit configured to output the magnification set by the magnification setting unit;
And the magnification read by the reading means, and
Output to the means .

[0010]

The image recording apparatus according to the present invention records on a recording medium a portion of a captured image that is not enlarged and displayed, so that the captured image can be recorded without waste. In addition, since it is recorded including the display magnification at the time of imaging,
The captured image can be recorded without waste.

An image reproducing apparatus according to the present invention can read an image and a magnification from a recording medium and display the image at a magnification set at the time of imaging.

An image reproducing apparatus according to the present invention can read out an image and a magnification from a recording medium, and switch and display an image enlarged at the magnification and an image not enlarged.

[0013]

[Embodiment 1] FIG. 1 shows a first embodiment of the present invention. In FIG. 1, 1 is a CCD, 2 is an analog signal processing circuit, 3 is an A / D conversion circuit, 4 is a digital signal processing circuit, 6 is a D / A conversion circuit, 21 is a video recording circuit, 22 is a video reproduction circuit,
5 is an A / D conversion circuit, 23 is a memory, 24 is a memory control circuit, 25 is an enlargement magnification setting switch, 26 is an image enlargement interpolation circuit, 16 is a D / A conversion circuit, and 27 is an output terminal.

The operation of the first embodiment will be described. The video recording circuit 21 records a video signal on a medium such as a magnetic tape. The video signal is reproduced by the video reproduction circuit 22 and A / D converted by the A / D conversion circuit 15. An image in an area corresponding to the magnification indicated by the magnification setting switch 25 is read from the memory 23 by the memory control circuit 24,
Enlargement interpolation is performed by the image enlargement interpolation circuit 26. A signal subjected to D / A conversion by the D / A conversion circuit 16 is output from an output terminal 27.

Embodiment 2 FIG. FIG. 2 shows a second embodiment of the present invention. In FIG. 2, 29
Is a zoom lens, 30 is a zoom position detection circuit, 31 is a zoom position reading circuit, 32 is a multiplication circuit, and 33 is an addition circuit.

The operation of the second embodiment will be described. The zoom position detection circuit 30 includes, for example, a potentiometer and detects the zoom position of the zoom lens 29. The detected zoom position information is superimposed, for example, during a blanking period of a video signal, and is recorded on a medium such as a magnetic tape by the video recording circuit 21. The video signal is reproduced by the video reproduction circuit, and the above-described superimposed zoom position information is read by the zoom position reading circuit. Multiplication circuit 3
2, the magnification set by the magnification setting switch 25 is multiplied by the magnification from the wide-angle end which is known from the zoom position information. The total enlargement magnification output from the multiplication circuit 32 is added to the video signal by the addition circuit 33 and output.

Embodiment 3 FIG. FIG. 3 shows a third embodiment of the present invention. In FIG. 3, 34
Is a display means for displaying an enlargement magnification. In this embodiment, a numeral display device is used.

The operation of the third embodiment will be described. The total enlargement magnification output from the multiplication circuit 32 is determined by using a liquid crystal or LED.
The number is displayed on the numeral display device 34.

Embodiment 4 FIG. FIG. 4 shows a fourth embodiment of the present invention. In FIG. 4, 35
Is an addition circuit, and 36 is a display means for displaying an enlargement magnification. In this embodiment, an electronic viewfinder is used.

The operation of the fourth embodiment will be described. The total enlargement magnification output from the multiplication circuit 32 is added to the addition circuit 35.
And the result is displayed on the electronic viewfinder 36.

Embodiment 5 FIG. FIG. 5 shows a fifth embodiment of the present invention. In the figure, 37,
Reference numeral 38 denotes an enlargement position selection switch. In this embodiment, reference numeral 37 denotes a horizontal position selection switch, and reference numeral 38 denotes a vertical position selection switch.

The operation of the fifth embodiment will be described. The horizontal position of the area to be enlarged in the screen is set by the horizontal position selection switch 37. The vertical position of the area to be enlarged in the screen is set by the vertical position selection switch 38.

Embodiment 6 FIG. FIG. 6 shows a sixth embodiment of the present invention. In this example,
A lever that freely moves in the vertical and horizontal directions is used as an enlargement position setting switch. The lever is provided with a movable part that moves in the vertical direction, so that one point in the horizontal and vertical directions on the screen can be selected during reproduction. In the figure, reference numeral 18 denotes a lever that moves vertically and horizontally, 39 denotes a potentiometer that generates a voltage corresponding to the vertical displacement of the lever 18, and 40 denotes a lever 1
Reference numeral 8 denotes a potentiometer that generates a voltage corresponding to the horizontal displacement, reference numeral 17 denotes a movable unit that moves up and down, and reference numeral 41 denotes a potentiometer that generates a voltage corresponding to the displacement of the movable unit 17.

The operation of the sixth embodiment will be described. By moving the lever 18 in the vertical and horizontal directions, voltages corresponding to the vertical and horizontal displacements are input from the potentiometers 39 and 40 to the memory control circuit 24. The horizontal and vertical positions of the area to be enlarged can be set by these voltages. Further, by moving the movable portion 17, a voltage corresponding to the vertical displacement of the movable portion 17 is input from the potentiometer 41 to the memory control circuit 24. The magnification can be set by this voltage. By manipulating the lever 18 and the movable part 17, the image can be enlarged to a desired magnification centering on an arbitrary position of the image.

Embodiment 7 FIG. FIG. 7 shows a seventh embodiment of the present invention. In the figure, reference numeral 42 denotes an enlargement position selection switch. In this embodiment, a light pen is used. The light pen is provided with a movable part that moves up and down, and the magnification is set by the movable part.

The operation of the seventh embodiment will be described. The light receiving unit 43 provided on the light pen 42 detects a scanning line of a television monitor or the like that displays an image output from the output terminal 27, and detects the horizontal and vertical positions of the light pen 42 on the screen. Is input to the memory control circuit 24. A voltage corresponding to the displacement of the movable section 44 is input to the memory control circuit 24. With this voltage, the magnification of the image can be set. By manipulating the light pen 42 and the movable part 44, the image can be enlarged to a desired magnification centering on an arbitrary position of the image.

Embodiment 8 FIG. FIG. 8 shows an eighth embodiment of the present invention. In the figure, 45
Is a recording / reproduction determination circuit for determining a recording mode / reproduction mode. 46 is a zoom switch T for moving the zoom position of the zoom lens 29 to the telephoto side, 47 is a zoom switch W for moving the zoom position of the zoom lens 29 to the wide angle side, and 48 and 49 are zoom switches T46 and W47. A changeover switch for switching a signal to one of the zoom lens 29 and the memory control circuit 24. In this embodiment, the zoom switches 46 and 47 are also provided with a function as a switch for setting a magnification, and are used as enlargement magnification setting switches for performing image enlargement during reproduction.

The operation of the eighth embodiment will be described. When a video signal is being recorded, the recording / reproduction determination circuit 45 controls the changeover switches 48 and 49 so that the zoom switch T4
6. The signal from the zoom switch W47 is transferred to the zoom lens 2
9 In this case, the zoom switch T46,
By operating the zoom switch W47, the zoom position of the zoom lens 29 can be changed. When the video signal is being reproduced, the recording / reproducing determination circuit 45 controls the changeover switches 48 and 49 to control the zoom switch T4.
6. Connect the signal from the zoom switch W47 to the memory control circuit 29. In this case, the zoom switch T4
6. The magnification of the reproduced image can be changed by operating the zoom switch W47.

Embodiment 9 FIG. FIG. 9 shows a ninth embodiment of the present invention. In the drawing, reference numeral 50 denotes an image enlargement magnification calculating circuit, 51 denotes an image enlargement magnification reading circuit, and 52 and 53 denote image enlargement magnification reading circuits 51 as signals for setting an image enlargement magnification to a memory control circuit.
A switch for switching between a signal from the electronic zoom switch T46 and a signal from the electronic zoom switch W47. Reference numeral 54 denotes a video reproduction circuit 22 in which an image is enlarged and a non-image is enlarged as a video signal obtained at the output terminal 27.
A changeover switch for selecting one of output and
Reference numeral 55 denotes a changeover switch for switching between the output of the digital signal processing circuit 4 and the output of the A / D conversion circuit 15 as an image input to the memory 23.

The operation of the ninth embodiment will be described. Changeover switches 52, 5 according to the output of the recording / reproduction determination circuit 45
Connections 3 and 55 are as follows during video signal recording.
The changeover switches 52 and 53 enable the memory control circuit 24
And electronic zoom switch T46, electronic zoom switch W4
7 is connected. The memory 2 is set by the changeover switch 55
The output of the digital signal processing circuit 4 is input to 3.
Further, during recording, a magnification for enlarging an image is calculated by an image enlargement magnification calculating circuit 50 based on information of the electronic zoom switch T46 and the electronic zoom switch W47, and is superimposed on a blanking period of a video signal, for example, by a magnetic tape or the like. The video recording circuit 21 records the magnification on the medium. A switch 52 according to the output of the recording / reproduction determination circuit 45;
The connections of 53 and 55 are as follows during reproduction of the video signal. The changeover switches 52 and 53 connect the memory control circuit 24 and the image magnification reading circuit 51. In the image magnification reading circuit, the image magnification recorded on the magnetic tape or the like is read. The output of the A / D conversion circuit 15 is input to the memory 23 by the changeover switch 55. During recording, the output of the D / A conversion circuit 16 may be connected to the output terminal by the changeover switch 54. During reproduction, by operating the changeover switch 54, an enlarged image can be obtained by connecting the output terminal 27 and the D / A conversion circuit 16.
On the other hand, by connecting the output terminal 27 and the video reproduction circuit 22, an image that is not enlarged can be obtained.

According to the first embodiment of the present invention, it is possible to enlarge the image as needed at the time of reproduction and to set the magnification of the image at the time of reproduction.

According to the second and third embodiments of the present invention, there is an effect that the image magnification at the time of reproduction can be known on the reproduction screen, and the picture creation at the time of editing or the like becomes easy.

According to the fourth embodiment of the present invention, there is an effect that the image magnification at the time of reproduction can be confirmed by the electronic viewfinder, and the picture creation at the time of editing or the like is facilitated.

According to the fifth embodiment of the present invention, it is possible to enlarge an image at an arbitrary position on the screen at the time of reproduction and to set the magnification of the image at the time of reproduction. .

According to the sixth and seventh embodiments of the present invention, it is possible to enlarge an image at an arbitrary position on the screen at the time of reproduction by a simple operation and to set the magnification of the image at the time of reproduction. There is an effect that can be done.

According to the eighth embodiment of the present invention, it is possible to enlarge the image as needed at the time of reproduction without increasing the number of switches so much, and to set the magnification of the image at the time of reproduction. There is an effect.

According to the ninth embodiment of the present invention, during recording, it is possible to take an image while checking an enlarged image, so that operations such as following an object can be performed in the same manner as a normal zoom mechanism. At the same time, the signal obtained from the video reproduction circuit is used in the image enlargement.
An image signal obtained from a CD is recorded without waste, and there is an effect that an image can be enlarged as necessary.

In the above-described camera-integrated video tape recorder, a case where a CCD is used as an image pickup device has been described, but a case where another image pickup device such as an image pickup tube is used may be used.

[0039]

Since the present invention is configured as described above, it has the following effects. In the image recording apparatus according to the present invention, an image capturing unit that captures an image, a magnification setting unit that sets a magnification for the image captured by the image capturing unit, and an image capturing unit that captures an image captured by the image capturing unit.
The parts, and selection means for outputting to said magnification setting means is selected according to the set magnification display device, the selection means smell
Image the imaging means has captured including images not selected Te, and the set magnification in the magnification setting means, since a recording means for recording the recording medium, to record without waste captured image it can.

Further, in the image reproducing apparatus according to the present invention, the reading means for reading out the image and the magnification associated with the image at the time of capturing the image from the recording medium, and temporarily storing the image read out by the reading means. An image memory for temporarily storing the image and a selection unit for selecting a part of the image stored in the image memory in accordance with the magnification read by the reading unit and outputting the selected image to a display device. The image read from the recording medium can be displayed at the specified magnification.

Further, in the image reproducing apparatus according to the present invention, a reading means for reading out an image and a magnification associated with the image at the time of capturing the image from a recording medium, and outputting the image read out by the reading means. A first image output unit, an image memory for temporarily storing the image read by the reading unit, and a part of the image stored in the image memory according to the magnification read by the reading unit. Selecting means for selecting the selected image, a second image outputting means for outputting the image selected by the selecting means as a partially enlarged image of the output image of the image outputting means, and the first and second image outputting means Image switching means for switching the output image and outputting the image to the display device, so that an image can be displayed by switching between a magnification set at the time of image recording and a magnification different from the magnification.

Further, in the image recording / reproducing apparatus according to the present invention, an image for temporarily storing an input image is provided.
An image memory and a part of an image stored in the image memory
Is selected according to the input magnification and output to the display device.
Selection means, imaging means for imaging an image, and the imaging means
Setting means for setting a magnification for an image captured by the user
Output the image captured by the image capturing means to the image memory.
The first output means for inputting the power and the magnification setting means.
Second output means for outputting the selected magnification to the selection means;
The imaging hand including an image not selected by the selection means;
Input image from the column and the magnification set in the magnification setting means
A recording means for recording the image on a recording medium, an image,
The magnification associated with the image when the image was captured
Reading means for reading from the first output means, wherein the first output means
Indicates that the image captured by the imaging unit and the reading unit
Output to the image memory by switching between the output image and the
A second output unit configured to output the magnification set by the magnification setting unit;
And the magnification read by the reading means, and
Output to the means, so that the captured image can be recorded without waste.
Can be

[Brief description of the drawings]

FIG. 1 is a diagram showing a camera-integrated video tape recorder according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a video tape recorder integrated with a camera according to a second embodiment of the present invention;

FIG. 3 is a diagram showing a video tape recorder integrated with a camera according to a third embodiment of the present invention.

FIG. 4 is a diagram showing a video tape recorder integrated with a camera according to a fourth embodiment of the present invention.

FIG. 5 is a diagram showing a video tape recorder integrated with a camera according to a fifth embodiment of the present invention.

FIG. 6 is a diagram showing a video tape recorder integrated with a camera according to a sixth embodiment of the present invention.

FIG. 7 is a diagram showing a video tape recorder with an integrated camera according to a seventh embodiment of the present invention;

FIG. 8 is a diagram showing a video tape recorder integrated with a camera according to an eighth embodiment of the present invention.

FIG. 9 is a diagram showing a video tape recorder integrated with a camera according to a ninth embodiment of the present invention.

FIG. 10 is a diagram showing a camera-integrated video tape recorder according to the related art.

[Explanation of symbols]

 1. CCD 2. 2. Analog signal processing circuit A / D conversion circuit 4. Digital signal processing circuit 5. 5. Image enlargement interpolation circuit 6. D / A conversion circuit 7. Video signal output terminal Zoom switch T9. Zoom switch W10. Memory 11. Video recording section 15. A / D conversion circuit 16. D / A conversion circuit 17. Moving part 18. Lever 21. Video recording circuit 22. Video reproduction circuit 23. Memory 24. Memory control circuit 25. Enlargement magnification setting switch 26. Image enlargement interpolation circuit 27. Output terminal 29. Zoom lens 30. Zoom position detection circuit 31. Zoom position reading circuit 32. Multiplication circuit 33. Adder circuit 34. Numeric display device 35. Adder circuit 36. Electronic viewfinder 37. Horizontal position selection switch 38. Vertical position selection switch 39. Potentiometer 40. Potentiometer 41. Potentiometer 42. Light pen 43. Light receiving section 44. Movable part 45. Recording / reproduction determination circuit 46. Zoom switch T 47. Zoom switch W 48. Changeover switch 49. Changeover switch 50. Image magnification calculation circuit 51. Image magnification reading circuit 52. Selector switch 53. Changeover switch 54. Changeover switch 55. Switch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/228 H04N 5/765 H04N 5/91-5/956

Claims (4)

(57) [Claims] An image capturing unit that captures an image; a magnification setting unit configured to set a magnification for the image captured by the image capturing unit; and a part of the image captured by the image capturing unit is set in the magnification setting unit. selection means for outputting to the selected display device in accordance with the magnification, the image the imaging means has captured including the image that is not selected in the selecting means, and the set magnification in the magnification setting means, recorded on the recording medium An image recording apparatus comprising: 2. A reading means for reading from a recording medium an image and a magnification associated with the image at the time of capturing the image, an image memory for temporarily storing the image read by the reading means, and the image An image reproducing apparatus, comprising: selecting means for selecting a part of an image stored in a memory according to the magnification read by the reading means and outputting the selected part to a display device. 3. A reading means for reading, from a recording medium, an image and a magnification associated with the image when the image is captured, a first image output means for outputting the image read by the reading means, An image memory for temporarily storing the image read by the reading unit; a selection unit for selecting a part of the image stored in the image memory according to the magnification read by the reading unit; Outputting the selected image as a partially enlarged image of the output image of the image output means, and switching the output images of the first and second image output means to output to the display device An image reproducing apparatus comprising: 4. An image for temporarily storing an input image
Memory and a part of the image stored in the image memory,
Times to set a selection means for outputting to the selected display device in accordance with the magnification, an imaging unit for capturing an image, the magnification for an image the imaging means has captured
Rate setting means for outputting an image taken by the imaging means to the image memory.
The first output means and the magnification set in the magnification setting means are output to the selection means.
Second output means for inputting, and the imaging including an image not selected by the selection means
Image input from the means and the magnification set in the magnification setting means
A rate, a recording means for recording on a recording medium, an image, and the image associated with the image when the image is captured.
Reading means for reading a magnification from a recording medium, wherein the first output means includes an image picked up by the image pickup means,
Switching between the image read by the reading means and the image
Output to the memory, and the second output means is set in the magnification setting means.
Switching between the magnification and the magnification read by the reading means,
An image recording / reproducing device for outputting to a selecting means
Place .