JP2885251B2 - Imaging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera, a TV
The present invention relates to an imaging device such as a camera.

[0002]

2. Description of the Related Art A digital camera provides a special effect such as a still effect or a strobe effect to a photographing apparatus having an image sensor for converting a subject image into an electric signal, for example, a camera section of a camera-integrated video tape recorder. There is known a configuration that can be applied.

FIG. 3 shows a schematic block diagram of a conventional example. The imaging device 10 outputs an electric signal of a subject image, and the camera signal processing circuit 12 converts an output signal of the imaging device 10 into a video signal. The A / D converter 14 digitizes the video signal output from the camera signal processing circuit 12, and the output is written to the memory 16 to perform the special effects described above. The image data stored in the memory 16 is read and returned to an analog signal by the D / A converter 18. The control circuit 20 supplies a sampling clock to the A / D converter 14 and the D / A converter 18 in response to the operation of the operation switch 21 for instructing the special effect, and also controls the special effect using the memory 16. Of digital signal processing. That is, the control circuit 20 captures the video signal output from the camera signal processing circuit 12 into the memory 16 according to the operation switch 21.

[0004] A switch 22 outputs an output of the camera signal processing circuit 12 or a D / A according to a control signal from the control circuit 20.
The output of the converter 18 is selected. That is, either a video signal not subjected to the special effect or a video signal subjected to the special effect is selected. The video signal selected by the switch 22 is applied to the recording circuit 24 and the monitor device 26. Recording circuit 24
Records a video signal on a recording medium such as a magnetic tape, and the monitor device 26 displays an image of the video signal.

By setting the switch 22 to a certain degree continuously, the D / A
By being connected to the converter 18 side, the display image of the monitor device 26 and the image recorded by the recording circuit 24 are in a stationary state. The output video signal of the camera signal processing circuit 12 is intermittently loaded into the memory 16, and the switch 22 is switched to the output side of the camera signal processing circuit 12 and the output side of the D / A converter 18 accordingly. ,
Strobe effect is obtained.

[0006]

In the above conventional example, the memory 1 of the video signal output from the camera signal processing circuit 12 is used.
6 is performed by the control circuit 20 in response to the operation of the operation switch 21 by the photographer. Therefore, when the operation switch 21 is operated, the image of the image shaken to the memory 16 due to a shock or camera shake is taken. There is a drawback that a signal is taken in and the image quality of a still image due to a still or strobe function is impaired.

[0007] An object of the present invention is to provide a photographing apparatus which has solved such a drawback.

[0008]

According to the present invention, there is provided a photographing apparatus comprising: an image pickup means for photoelectrically converting a subject image to output an image signal; a memory means for temporarily storing an output image signal of the image pickup means; Switching means for switching between the output of the imaging means and the output of the memory means; a shake detection means for detecting a shake of the apparatus ; and an output image signal of the imaging means when the shake detected by the shake detection means is equal to or less than a predetermined value. Is allowed to be loaded into the memory means, and the
If the set value is exceeded, the output image signal of the
Characterized by comprising the control means for inhibiting uptake into the memory means.

[0009]

According to the above-mentioned means, even if there is a device shake caused by an instruction operation of taking in the memory means, the influence is taken into the memory means when its adverse effect is reduced. Therefore, a high-quality still image free from shake can be obtained from the memory means.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic block diagram showing an embodiment of the present invention. The same components as those in FIG. 3 are denoted by the same reference numerals. 30 is a shake detection circuit for detecting camera shake, 3
Reference numeral 2 denotes a control circuit that controls writing and reading of the memory 16 and switching of the switch 22 according to the outputs of the operation switch 21 and the shake detection circuit 30. The shake detection circuit 30 outputs a vector signal A indicating the amount and direction of the shake to the control circuit 32.

The operation of the control circuit 32 will be described in detail with reference to FIG. First, when the operation switch 21 is operated (S1), a shake signal A output from the shake detection circuit 30 is output.
(S2). The magnitude of the captured shake signal A |
A | is compared with a predetermined value Ao (S3). If the magnitude | A | of the shake signal A exceeds the predetermined value Ao, the capture of the output of the shake detection circuit 30 is continued until the magnitude | A | S2, 3).

When the magnitude | A | of the shake signal A falls below a predetermined value Ao (S3), the A / D converter 14 and the memory 16
Is activated, and the output video signal of the camera signal processing circuit 12 is loaded into the memory 16 (S4). Then, the switch 22 is switched to the D / A converter 18 side, and the video signal stored in the memory 16 is repeatedly read and applied to the recording circuit 24 and the monitor 26 via the D / A converter 18 and the switch 22. As a result, the still image is displayed on the monitor device 26 and is recorded on the recording medium by the recording circuit 24.

By intermittently performing the special effects described here, a strobe effect can be obtained.

The shake detection circuit 30 may be a circuit comprising a sensor for detecting angular acceleration, angular velocity, angular displacement, etc., and a processing circuit for processing the output of the sensor and outputting a vector signal. Alternatively, the output signal of the camera signal processing circuit 12 may be digitally processed to obtain an image motion vector.

[0016]

As can be easily understood from the above description, according to the present invention, image data without shake can be taken into the memory for special effects.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of an embodiment of the present invention.

FIG. 2 is an operation flowchart of the embodiment.

FIG. 3 is a configuration block diagram of a conventional example.

[Explanation of symbols]

10: Image sensor 12: Camera signal processing circuit 14: A
/ D converter 16: Memory 18: D / A converter 18
20: Control circuit 21: Operation switch 22: Switch 24: Recording circuit 26: Monitor device

Claims (2)

(57) [Claims] 1. An image pickup means for photoelectrically converting a subject image to output an image signal, a memory means for temporarily storing an output image signal of the image pickup means, and switching between an output of the image pickup means and an output of the memory means. Switching means, shake detection means for detecting shake of the apparatus , and when the shake detected by the shake detection means is equal to or less than a predetermined value , permitting capture of the output image signal of the imaging means into the memory means ; When the runout exceeds the specified value
The output image signal of the imaging means to the memory means.
And characterized in that it consists of a control means for inhibiting the uptake
Imaging apparatus to be. 2. The switching means according to claim 1, wherein said switching means outputs the output of said imaging means.
And selectively outputs the output of the memory means to a recording circuit and a memory.
2. The method according to claim 1, wherein the apparatus is configured to supply the material to a computer.
Shooting equipment.