JP2011097173A - Camera with luminance-responsive imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-substantial system for preventing generation of video noise due to light shot noise when sensitivity is increased by an electron multiplication function of a CCD by suppressing afterimage occurrence when an exposure time is increased in a low-illuminance environment. <P>SOLUTION: A moving speed signal and a luminance level signal of an object are calculated, in a data processing part, from a digital signal obtained by converting an analog moving image signal obtained by a charge multiplication-type CCD imaging element; a charge storage time of the CCD imaging element, and an electron multiplication factor of the CCD imaging element are determined, by a microprocessor, from a speed signal and a luminance level signal, respectively; a CCD drive circuit calculates an exposure time of the CCD imaging element from the charge storage time; and the CCD drive circuit controls the exposure time and the electron multiplication factor of the CCD imaging element. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a moving image processing camera that captures a moving image of a moving body, etc., and relates to a technique for obtaining an image that is free from an afterimage of a moving body and has excellent subject visibility even in a low illumination environment.

As a conventional technique for improving the visibility of a subject by linking a motion detection (moving object detection) function and imaging control of the camera in a camera for monitoring or the like, for example, Japanese Patent Laid-Open No. 2001-358984 (Patent Document 1) ) Is provided with speed detection means for detecting the moving speed of the moving object included in the moving image from the image sensor, and usually performs imaging at a frame rate generally used in video cameras such as 1/30 second, An image is disclosed in which when a moving object moving at high speed is detected, imaging is performed at a high frame rate to improve the visibility of the high-speed moving object.
Further, for example, in Japanese Patent Application Laid-Open No. 2009-5095 (Patent Document 2), in a surveillance camera system using a CCD (Charge-Coupled Device) having an electron multiplication function, a motion amount detection result detected by an infrared camera and A controller that switches between imaging control by electron multiplication and imaging control by electronic sensitization (slow shutter) based on subject illumination information calculated from camera images, and improved visibility in low-light environments It is disclosed.

JP 2001-358984 A JP 2009-5095 A

  Since the conventional camera is configured as described above, there are the following problems. In the camera of Patent Document 1, there is an advantage that a moving object that moves at high speed can be taken without an afterimage under an imaging environment with sufficient illuminance. There was a problem that the video would be dark. If the exposure time is increased in order to capture a clear image, an afterimage is generated, and the subject cannot be recognized well.

Further, in the surveillance camera system of Patent Document 2, it is possible to obtain an image having no afterimage even in a low illumination environment by increasing the sensitivity by the electronic multiplication function of the CCD. Since a lot of video noise is generated due to shot noise, the appearance (image quality) is greatly different from a video whose sensitivity has been increased by electronic sensitization. Furthermore, since the surveillance camera system of Patent Document 2 uses another camera (infrared camera) for detecting the amount of motion, the system becomes large.
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a video with no afterimage and excellent visibility of a subject with a camera for monitoring or the like. Another object is to obtain a camera system with low power consumption.

The camera with a luminance-compatible imaging device according to the present invention is
A lens for imaging incident light;
An image sensor using a charge-multiplied CCD for imaging an image formed by a lens;
An A / D converter that converts an analog moving image signal obtained by the image sensor into a digital moving image signal;
A video signal processing unit for performing various image processing on the digital signal input from the A / D converter;
A video signal output unit that converts a signal output from the video signal processing unit into a predetermined video format and outputs a video signal;
Information indicating whether or not there is a moving object at the shooting angle of view, information indicating the moving speed of the moving object, and the luminance level of the moving image as an index value representing the state of movement of the subject from the moving image from the video signal processing unit A data processing unit for calculating an index value to be indicated;
From the index value indicating the state of movement of the subject from the data processing unit, the accumulation time of the image sensor is determined based on a correspondence table between a predetermined index value indicating the moving speed of the moving object and the accumulation time of the CCD, Similarly, a microprocessor that determines the electronic multiplication factor of the image sensor from the index value indicating the luminance level from the data processing unit,
A timing generator that controls the exposure time of the image sensor based on the accumulation time from the microprocessor;
Similarly, an electron multiplication control circuit that controls the electron multiplication factor of the image pickup device by the electron multiplication factor of the image pickup device from the microprocessor, and a predetermined drive pulse to the image pickup device based on signals from the electron multiplication control circuit and the timing generator And a CCD driving circuit to be supplied.

  According to the camera with luminance-capable imaging device according to the present invention, when the data processing unit detects that a moving object such as an intruder has entered the imaging field of view, the microprocessor calculates the accumulation time of the imaging element. Switching to an optimal storage time so that no afterimage occurs in the image, and the microprocessor variably controls the electron multiplication factor of the charge multiplying CCD so that the luminance level of the image becomes a predetermined level. Even in an illuminance environment, there is no afterimage, and an image with excellent subject visibility can be obtained.

It is a block diagram which shows the structure of the camera in Embodiment 1 of this invention. It is a transition diagram of luminance control of a conventional camera using a charge multiplying CCD image sensor. 4 is a flowchart illustrating an operation when a moving object is detected in the first embodiment. It is a figure which shows the table which memorize | stored the relationship between the index value which shows the moving speed of a moving object, and accumulation | storage time. 10 is a flowchart illustrating an operation when a moving object is detected in the second embodiment. It is a figure which shows the example to which the moving object and the photometry frame were changed. 6 is a block diagram illustrating a configuration of a camera according to Embodiment 3. FIG. 14 is a flowchart illustrating an operation when a moving object is detected in the third embodiment. FIG. 10 is a block diagram illustrating a configuration of a camera according to a fifth embodiment. 14 is a flowchart illustrating an operation when a moving object is detected in the fifth embodiment.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described with reference to FIG.
FIG. 1 is a block diagram illustrating a configuration of the camera according to the first embodiment. In FIG. 1, 1 is a lens for imaging incident light, 2 is an image pickup device (hereinafter referred to as a CCD) using a CCD that photoelectrically converts light incident from the lens 1, and in Embodiment 1 of the present invention, photoelectric conversion is performed. A charge multiplying CCD capable of increasing the sensitivity by multiplying the charge inside the CCD is used. 3 is a CDS (Correlated Double Sampling) that removes noise from the signal output from the CCD 2, 4 is an amplifier that amplifies the output signal of the CDS 3, and 5 is an A / D that converts the analog signal output from the amplifier 4 into a digital signal. A converter 6 is a video signal processing unit that performs various image processing on the digital signal input from the A / D converter 5, and has functions for correcting gradation, correcting colors, correcting image sharpness, and the like. ing. A video signal output unit 7 converts a signal output from the video signal processing unit 6 into a predetermined video format such as NTSC or motion JPEG and outputs a video signal. Reference numeral 8 denotes a memory circuit for storing video data for one field, and when there is a period during which there is no video output at the time of slow shutter, the video signal processing unit 6 replaces the video data stored in the memory circuit 8 with complementary video data. To the video signal output unit 7.

  9 is a data processing unit for calculating an index value indicating the state of movement of the subject from the moving image and an index value indicating the luminance level of the moving image, 10 is a microprocessor that controls various controls of the camera, and 11 is a command interface with the outside. The microprocessor 10 is an I / F unit for realizing, and determines a command input from the I / F unit 11, controls each block in the camera, and determines the operation of the camera. 12 is an electron multiplication control circuit for controlling the electron multiplication factor based on an instruction from the microprocessor 10, 13 is a timing generator for controlling the exposure time based on an instruction from the microprocessor 10, and 14 is an electron multiplication control circuit. 12 and a CCD driving circuit for supplying a predetermined driving pulse to the CCD 2 based on signals from the timing generator 13. Note that the data processing unit 9 is information indicating whether or not there is a moving object at the shooting angle of view as an index value representing the state of movement of the subject, information on which area within the shooting angle of view of the moving object, Information indicating the moving speed of the moving object is detected. The information can be detected by a conventionally known method of observing the correlation between frames of video data.

FIG. 2 is a diagram showing a transition of luminance control of a conventional camera using a charge multiplying CCD as an image sensor. The brightness control mode transitions in the order of aperture control mode, electron multiplication control mode, and slow shutter control mode as the imaging environment changes from a bright state to a low illuminance. The aperture control mode is a mode in which the brightness level is controlled by the open / closed state of an aperture (not shown) built in the lens 1. At this time, the electronic multiplication factor is the minimum value and the exposure time is fixed (usually 1/60 seconds). Fixed). The electron multiplication control mode is a mode in which the brightness level is controlled by varying the sensitivity of the charge multiplication type CCD. At this time, the aperture is opened and the exposure time is fixed.
Charge multiplying CCDs can amplify the accumulated charge up to several thousand times. However, if the electron multiplication factor increases, image noise due to light shot noise is generated as a quadratic function. A control method is adopted in which the gain is increased to a level where a visually acceptable signal-to-noise ratio (Signal to Noise ratio) can be maintained without increasing the gain, and the mode is changed to the slow shutter control mode. The slow shutter control mode is a mode in which the exposure time is varied to control the luminance level. Normally, the exposure time is changed by a value such as 2 times, 4 times, or 6 times. At this time, the aperture is in an open state, and the electron multiplication factor is a fixed value.

  In the transition control of the brightness control mode as described above, for example, when shooting in an extremely low illuminance environment of 1 lux or less, the shooting is performed in the slow shutter control mode. In the slow shutter control mode, since the exposure time of the image sensor is lengthened for shooting, there is a situation in which when there is a moving subject (for example, an intruder), an afterimage is generated and the subject cannot be accurately recognized. The afterimage generated in the video increases as the moving speed of the moving object to be photographed increases, or as the accumulation time during imaging increases. The camera according to the first embodiment operates as follows when a moving object is detected by the data processing unit 9 when the imaging environment is extremely low illuminance and shooting is performed in the slow shutter control mode.

  FIG. 3 is a flowchart showing the operation of the camera when a moving object is detected by the data processing unit 9 while shooting in the slow shutter control mode. When a moving object is detected by the data processing unit 9 in step ST101, the microprocessor 10 acquires speed information of the moving object from the data processing unit 9 (step ST102). Next, the microprocessor 10 refers to the table shown in FIG. 4, determines the accumulation time according to the moving speed of the moving object, and changes the accumulation time via the timing generator 13 (step ST103). The table shown in FIG. 4 is a table that stores the relationship between the index value indicating the moving speed of the moving object and the accumulation time. Since the afterimage generated in the video increases as the speed of the moving object increases, the table is such that the accumulation time decreases as the speed increases.

  Next, the microprocessor 10 makes the fixed electronic multiplication factor variable, and based on the index value indicating the luminance level of the moving image that can be acquired from the data processing unit 9, the electronic multiplication factor is set so that the luminance level becomes constant. Is controlled (step ST104). Further, the microprocessor 10 confirms whether or not the moving object remains within the angle of view (presence / absence of the moving object) at predetermined time intervals (step ST105), and when there is no moving object, the slow shutter described in FIG. The control mode is entered (step ST106). Note that if the transition to the slow shutter control mode is performed when the same state continues for a predetermined period, it is possible to prevent the control from becoming sensitive. If it is determined in step ST105 that there is a moving object within the angle of view, the process proceeds to step ST102 again, and control is performed so that an accumulation time that is always adapted to the moving speed of the moving object is set.

  As described above, in the imaging control method of the camera according to the first embodiment, when it is detected that a moving object such as an intruder has entered the imaging angle of view, an afterimage does not occur in the image of the moving object for the accumulation time of the imaging element. Switching to the optimum storage time, and further, the electronic multiplication factor of the charge multiplying CCD is variably controlled so that the luminance level of the image becomes a predetermined level, so there is no afterimage even in a low illumination environment. It is possible to obtain an image with excellent visibility of the subject.

Embodiment 2. FIG.
In the second embodiment, the setting of the photometric frame for calculating the luminance level of the subject is changed based on information on which area within the shooting angle of view of the moving object obtained from the data processing unit 9. It is a thing. An example in which the visibility is further improved by such a configuration will be described.
Since the block diagram showing the configuration of the camera of the second embodiment is the same as that of the first embodiment, description thereof is omitted. The camera according to the second embodiment operates as follows when a moving object is detected by the data processing unit 9 when the imaging environment is extremely low illuminance and shooting is performed in the slow shutter control mode.
FIG. 5 is a flowchart showing the operation of the camera according to the second embodiment when a moving object is detected by the data processing unit 9 when shooting is performed in the slow shutter control mode. Before detecting the moving object, the data processing unit 9 calculates the luminance level index value based on the video data of the entire screen using the entire screen as a photometric frame.

When a moving object is detected by the data processing unit 9 in step ST201 in FIG. 5, the microprocessor 10 acquires speed information of the moving object from the data processing unit 9 (step ST202). Next, the microprocessor 10 refers to the table shown in FIG. 4 to determine the accumulation time of the image sensor, and changes the accumulation time via the timing generator 13 (step ST203). The operations from step ST201 to step ST203 are the same as the operations from step ST101 to step ST103 of the first embodiment.
Next, the microprocessor 10 acquires information indicating in which area within the shooting angle of view the moving object appears from the data processing unit 9 (step ST204). Next, the microprocessor 10 changes the photometric frame based on the information acquired in step ST204 (step ST205). An example of changing the moving object and the photometric frame is shown in FIG. In the example shown in FIG. 6, only the area surrounding the moving object is a photometric frame.
The data processing unit 9 obtains a new photometry frame from the microprocessor 10 and calculates the luminance level index value based on the video data of the entire screen using the entire screen as the photometry frame. The brightness level index value is calculated based on the video data.

  Next, the microprocessor 10 can change the fixed electronic multiplication factor so that the luminance level becomes constant based on the index value indicating the luminance level of the moving image in the new photometric frame from the data processing unit 9. The electron multiplication factor is controlled (step ST206). Further, the microprocessor 10 checks whether or not the moving object remains within the angle of view (presence / absence of the moving object) at predetermined time intervals (step ST207). If there is no moving object, the microprocessor 10 shifts to the slow shutter control mode. At the same time, the photometry frame is changed to the full screen (step ST208).

  Note that if the transition to the slow shutter control mode is performed when the same state continues for a predetermined period, it is possible to prevent the control from becoming sensitive. If it is determined in step ST207 that there is a moving object within the angle of view, the process proceeds to step ST202 again, and a photometric frame corresponding to the accumulation time and the moving object existing area always adapted to the moving speed of the moving object. Control to be set. The operations from step ST206 to step ST207 are the same as the operations from step ST104 to step ST105 of the first embodiment.

  As described above, in the imaging control device of the camera according to the second embodiment, when it is detected that a moving object such as an intruder has entered the imaging angle of view, an afterimage does not occur in the image of the moving object due to the accumulation time of the imaging element. The photometry frame is changed so that the image level of the moving object is optimized, and the electron multiplication factor of the charge multiplying CCD is variable so that the luminance level of the image becomes a predetermined level. Since the control is performed, it is possible to obtain an image that is free from an afterimage even in a low illumination environment and has excellent visibility of the subject.

Embodiment 3 FIG.
FIG. 7 is a block diagram illustrating a configuration of the camera according to the third embodiment. In FIG. 7, the same components as those of the first embodiment are denoted by the same reference numerals as those in FIG. Reference numeral 15 denotes an infrared cut filter, and 16 denotes an infrared cut filter driving unit. The infrared cut filter 15 normally exists on the optical path between the lens 1 and the CCD 2, and when an instruction is issued from the microprocessor 10, the infrared cut filter drive unit 16 drives a motor or the like (not shown) to emit infrared rays. The cut filter 15 is operated so as to be out of the optical path between the lens 1 and the CCD 2.
The infrared cut filter 15 is intended to block the light in the infrared region and the near infrared region, operate the white balance properly, and prevent the color of the image from becoming unnatural. By attaching it, the sensitivity decreases accordingly.
The camera according to the third embodiment operates as follows when a moving object is detected by the data processing unit 9 when shooting is performed in the slow shutter mode with extremely low illuminance.

  FIG. 8 is a flowchart showing the operation of the camera when a moving object is detected by the data processing unit 9 while shooting in the slow shutter mode. When a moving object is detected by the data processing unit 9 in step ST301, the microprocessor 10 acquires speed information of the moving object from the data processing unit 9 (step ST302). Next, the microprocessor 10 refers to the table shown in FIG. 4, determines the accumulation time according to the moving speed of the moving object, and changes the accumulation time via the timing generator 13 (step ST303). The operations from step ST301 to step ST303 are the same as the operations from step ST101 to step ST103 of the first embodiment.

  Next, the microprocessor 10 outputs an infrared cut filter moving instruction to the infrared cut filter driving unit 16 to move the infrared cut filter 15 out of the optical path (step ST304). Next, the microprocessor 10 switches the signal processing of the video signal processing unit 6 so that the video output becomes a black and white video (step ST305). If the infrared cut filter 15 is removed, light in the near infrared region is also imaged, so that the white balance does not operate properly. In order to avoid unnatural color of the video, the process in step ST305 is necessary. Next, the microprocessor 10 makes the fixed electronic multiplication factor variable, and based on the index value indicating the luminance level of the moving image that can be acquired from the data processing unit 9, the electronic multiplication factor is set so that the luminance level becomes constant. Is controlled (step ST306).

  Further, the microprocessor 10 confirms whether or not the moving object remains within the angle of view (presence / absence of the moving object) at predetermined time intervals (step ST307), and when there is no moving object, shifts to the slow shutter control mode. At the same time, an instruction to move the infrared cut filter on the optical path is output (step ST308). Note that if the transition to the slow shutter control mode is performed when the same state continues for a predetermined period, it is possible to prevent the control from becoming sensitive. If it is determined in step ST307 that there is a moving object within the angle of view, the process proceeds to step ST302 again, and control is performed so that an accumulation time that is always adapted to the moving speed of the moving object is set. The operations from step ST306 to step ST307 are the same as the operations from step ST104 to step ST105 of the first embodiment.

  As described above, in the imaging control method of the camera according to the third embodiment, when it is detected that a moving object such as an intruder has entered the imaging angle of view, an afterimage does not occur in the image of the moving object due to the accumulation time of the imaging element. In addition to switching to the optimum accumulation time, the sensitivity is increased by moving the infrared cut filter out of the optical path, and the electron multiplication factor of the charge multiplying CCD is variably controlled so that the luminance level of the image becomes a predetermined level. As a result, it is possible to obtain an image having no afterimage even in a low illumination environment and having a good S / N ratio and excellent subject visibility.

When the moving object is within the angle of view, if the infrared cut filter is controlled so as to be taken in and out at regular time intervals, the black and white image with a good S / N ratio and the color information are reduced although the S / N ratio falls. Since the included color image is output alternately, it is possible to increase the information for extracting the feature of the moving object.
In the third embodiment, the CCD 2 can be configured by a normal CCD without using a charge multiplying CCD. In this case, the same effect can be obtained if the electron multiplication control mode shown in FIG. 2 is set to a mode for controlling the amplification factor of the amplifier 4.

Embodiment 4 FIG.
In the fourth embodiment, in the camera configuration of the third embodiment, as in the second embodiment, the moving object obtained from the data processing unit 9 is set to the photometric frame for calculating the luminance level of the subject. Change based on information about which area in the corner. By doing so, it becomes possible to further improve the visibility.
A block diagram showing the configuration of the camera of the fourth embodiment is the same as that of the third embodiment. Regarding the operation of the camera according to the fourth embodiment, after step ST303 of the flowchart shown in FIG. 8, processing for acquiring information on which area within the shooting angle of view of the moving object is acquired from the data processing unit 9, and acquisition is performed. A process for changing the photometric frame based on the obtained information may be added.

Embodiment 5 FIG.
In the fifth embodiment, when a moving object is detected in an extremely low illuminance environment, the near-infrared illuminator is turned on to brighten the subject illuminance, thereby further improving the S / N and excellent visibility. A form in which an image can be obtained is shown. Near-infrared illuminators are illumination that is difficult to distinguish for human eyes and have been used for monitoring purposes. However, it is common to use them at all times when the illumination is low. .
FIG. 9 is a block diagram illustrating a configuration of the camera according to the fifth embodiment. In FIG. 9, the same members as those described in the first to fourth embodiments are denoted by the same reference numerals. Reference numeral 17 denotes a near-infrared illuminator, which irradiates near-infrared rays on the optical path on the front surface of the lens 1, that is, incident light of the lens 1. The near infrared illuminator 17 is turned on / off based on an output signal from the microprocessor 10.
The camera according to the fifth embodiment operates as follows when a moving object is detected by the data processing unit 9 when shooting is performed in the slow shutter mode with an extremely low illuminance.

  FIG. 10 is a flowchart showing the operation of the camera when a moving object is detected by the data processing unit 9 while shooting in the slow shutter mode. When a moving object is detected by the data processing unit 9 in step ST401, the microprocessor 10 acquires speed information of the moving object from the data processing unit 9 (step ST402). Next, the microprocessor 10 refers to the table shown in FIG. 4, determines the accumulation time according to the moving speed of the moving object, and changes the accumulation time via the timing generator 13 (step ST403). Next, the microprocessor 10 outputs an infrared cut filter moving instruction to the infrared cut filter driving unit 16 to move the infrared cut filter 15 out of the optical path (step ST404). Next, the microprocessor 10 switches the signal processing of the video signal processing unit 6 so that the video output becomes black and white video (step ST405). The operations from step ST401 to step ST405 are the same as the operations from step ST301 to step ST305 in the third embodiment.

  Next, the microprocessor 10 turns on the near-infrared illuminator 17 (step ST406). Next, the microprocessor 10 makes the fixed electronic multiplication factor variable, and based on the index value indicating the luminance level of the moving image that can be acquired from the data processing unit 9, the electronic multiplication factor is set so that the luminance level becomes constant. Is controlled (step ST407). Further, the microprocessor 10 confirms whether or not the moving object remains within the angle of view (presence / absence of the moving object) at predetermined time intervals (step ST408). If there is no moving object, the microprocessor 10 shifts to the slow shutter control mode. At the same time, an instruction to move the infrared cut filter on the optical path is output, and the near-infrared illuminator 17 is turned off (step ST409). Note that if the transition to the slow shutter control mode is performed when the same state continues for a predetermined period, it is possible to prevent the control from becoming sensitive. If it is determined in step ST408 that there is a moving object within the angle of view, the process proceeds to step ST402 again, and control is performed so that an accumulation time that is always adapted to the moving speed of the moving object is set.

  As described above, in the imaging control method of the camera according to the fifth embodiment, when it is detected that a moving object such as an intruder has entered the imaging angle of view, an afterimage does not occur in the moving object image due to the accumulation time of the imaging element. In addition to switching to the optimal accumulation time, the infrared cut filter is moved out of the optical path to increase sensitivity, the near-infrared illuminator is turned on to increase the illuminance of the subject, and the brightness level of the image is set to a predetermined level. The electron multiplication factor of the charge multiplying CCD is variably controlled so that there is no afterimage even in a low illumination environment, and an image with good S / N and excellent subject visibility can be obtained. It becomes possible. In addition, since the near infrared illuminator is turned on only when a moving object is detected, it consumes less power than a conventional camera system that always illuminates the near infrared illuminator at low illuminance. It is possible to obtain a long-life camera system.

  The camera with luminance-capable imaging device according to the present invention is highly likely to be used in a device that captures moving images such as a moving object in a low illumination environment, and is particularly suitable when applied to a surveillance camera system.

  DESCRIPTION OF SYMBOLS 1; Lens, 2; CCD, 3; CDS, 4; Amplifier, 5; A / D converter, 6; Video signal processing part, 7: Video signal output part, 8; Memory circuit, 9; ; Microprocessor, 11; I / F section, 12; Electron multiplication control circuit, 13; Timing generator, 14; CCD drive circuit, 15; Infrared cut filter, 16; Infrared cut filter drive section, 17; vessel.

Claims (5)

A lens for imaging incident light;
An image sensor using a charge multiplying CCD for imaging an image formed by a lens;
An A / D converter that converts an analog moving image signal obtained by the image sensor into a digital moving image signal;
A video signal processing unit for performing various image processing on the digital signal input from the A / D converter;
A video signal output unit that converts a signal output from the video signal processing unit into a predetermined video format and outputs a video signal;
Information indicating whether or not there is a moving object at the shooting angle of view, information indicating the moving speed of the moving object, and the luminance level of the moving image as an index value representing the state of movement of the subject from the moving image from the video signal processing unit A data processing unit for calculating an index value to be indicated;
From the index value indicating the state of movement of the subject from the data processing unit, the accumulation time of the image sensor is determined based on a correspondence table between a predetermined index value indicating the moving speed of the moving object and the accumulation time of the CCD, Similarly, a microprocessor that determines the electronic multiplication factor of the image sensor from the index value indicating the luminance level from the data processing unit,
A timing generator that controls the exposure time of the image sensor based on the accumulation time from the microprocessor;
Similarly, an electron multiplication control circuit that controls the electron multiplication factor of the image pickup device by the electron multiplication factor of the image pickup device from the microprocessor, and a predetermined drive pulse to the image pickup device based on signals from the electron multiplication control circuit and the timing generator A luminance-equipped camera equipped with a CCD drive circuit for supplying. The data processing unit outputs information on which area within the shooting angle of view of the moving object is being shot,
The microprocessor is a new photometric frame for calculating an index value indicating a luminance level in a range surrounding the moving object based on information on an area within the shooting angle of view of the moving object from the data processing unit. Decide
The data processing unit calculates an index value indicating a luminance level of a moving image in a new photometric frame from the microprocessor;
The camera with a luminance-compatible imaging device according to claim 1, wherein the microprocessor is configured to determine an electronic multiplication factor of the imaging element from an index value indicating a luminance level from the data processing unit. An infrared cut filter arranged in a detachable configuration on the optical path in front of the image sensor;
An infrared cut filter driving unit for performing an attaching / detaching operation to the optical path of the infrared cut filter,
When the microprocessor inputs an index value indicating the moving speed of a predetermined moving object of the moving object from the data processing unit, the microprocessor removes the infrared cut filter from the optical path, and moves the moving object from the data processing unit. When there is no longer an input of an index value indicating the moving speed of a predetermined moving object, the infrared cut filter driving unit is caused to perform the operation of mounting the infrared cut filter on the optical path, and the video output of the video signal processing unit is monochrome The camera with luminance imaging device according to claim 1 or 2, wherein a signal for switching the signal processing of the video signal processing unit so as to be an image is output.   The microprocessor alternately attaches and detaches the infrared cut filter to and from the optical path while inputting an index value indicating a predetermined moving speed of the moving object from the data processing unit. The camera with a luminance-capable imaging device according to claim 3, wherein the infrared cut filter driving unit is caused to repeat. Equipped with a near-infrared illuminator that emits near-infrared light to the light incident on the lens
The microprocessor turns on the near-infrared illuminator when driving the infrared cut filter driving unit to detach the infrared cut filter from the optical path, and turns on the near infrared when mounting the infrared cut filter on the optical path. The camera with a luminance-compatible imaging device according to claim 3 or 4, wherein the illuminator is turned off.

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