KR20150097090A - Video Event Data Recorder having improved visibility and image processing method of the same - Google Patents

Abstract

The present invention relates to a video recorder with improved visibility and a video processing method thereof. A video recorder with improved visibility according to an embodiment of the present invention includes a camera unit recording videos of ambient environments around a vehicle and acquiring video data; a filtering unit filtering data of the videos recorded by the camera to adjust the brightness of the video data; a controller detecting objects based on characteristics and brightness preset in the video data and controlling the filtering unit to filter the objects; and a storing unit storing the video data acquired by the camera unit. Accordingly, the camera unit is capable of acquiring the video data with relatively uniform brightness through filtering lowering the brightness of the objects with a light source in the ambient environment so that the video data with excellent visibility may be provided. Therefore, the present invention is capable of accurately and easily acquiring information of license plates, signboards and the like by acquiring the video data.

Description

TECHNICAL FIELD [0001] The present invention relates to an image recording apparatus for a vehicle having improved visibility and an image processing method therefor,

The present invention relates to an image recording apparatus for a vehicle having improved visibility for providing clear image data and an image processing method therefor.

In general, video event data recorders (VEDRs) record the accidents before and after a collision to provide information necessary for the identification of an accident situation.

The vehicle image recording apparatus includes a camera section for capturing an image of a surrounding environment of the vehicle and acquiring image data, a controller for analyzing and processing the image data acquired by the camera section, a sensor section for sensing the state of the vehicle, And a storage unit for storing the processed image data, and can be used as information for storing the image data of the surrounding environment of the vehicle using the camera in the recording and storing unit to grasp the state of the accident.

On the other hand, when the vehicle is operated at night, the vehicles turn on and operate the headlights for safety.

At this time, when the rear part of the camera which photographs the rear part of the vehicle is photographed, the light of the rear part of the vehicle has spread to the license plate, so that the photographing information of the license plate can not be clearly confirmed.

In this way, when the vehicle is operated at night, when the camera part photographs a part emitting a brighter light than the surrounding area, such as a headlight, the light spreads to the surroundings, thereby providing image data that can not clearly identify the surrounding environment of the vehicle .

Korean Patent Publication No. 10-2012-0109700 (Published date October 9, 2012)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an image display apparatus, An image recording apparatus for a vehicle, and an image processing method therefor.

According to an aspect of the present invention, there is provided an image recording apparatus for a vehicle having an improved visibility, including a camera unit for photographing a surrounding environment of the vehicle and acquiring image data, A controller for filtering the image data input to the camera unit, a controller for detecting the object based on the preset characteristics and brightness in the image data, and controlling the filtering unit to filter the object, And a storage unit for storing data.

The filtering unit may be a transparent display panel that displays a filter image to adjust the transmittance of the object at a position corresponding to the position of the object.

The transparent display panel may further include a projection plate disposed in front of the camera unit to receive image data and reflecting the filtered image displayed on the display panel.

The filtering unit may include a polymer dispersed liquid crystal (PDLC), which is electrically transparent and opaque selectively.

The filtering unit may include a driving mechanism for driving the filtering unit.

The controller may control the driving mechanism such that the filtering unit is located at a position corresponding to the object.

The controller can operate the driving mechanism to repeatedly acquire image data captured by the camera when the filtering unit is ON and image data captured by the camera when the filtering unit is OFF.

The filtering unit may include a polarizing plate to transmit only light corresponding to the polarization axis of the light entering the camera unit to adjust the brightness of the image data.

According to another aspect of the present invention, there is provided an image processing method for an image recording apparatus for a vehicle having improved visibility, comprising the steps of: capturing an image of a surrounding environment of a vehicle to acquire image data; A feature extraction step of extracting a part corresponding to a predetermined feature in the data, an object detection step of detecting the object by determining that the part extracted at the feature extraction step has a brightness brighter than a predetermined brightness, And a filtering processing step of filtering a part of the object to be photographed in a filtering unit that adjusts the transparency so that the brightness of the object detected in the object detecting step is adjusted.

When the filtering unit is a transparent display panel, the filtering process may display a filter image that adjusts the transmittance so that the brightness of the object is adjusted at a portion where the object is photographed.

If the filtering unit is a polarizing plate, the filtering process may control the driving mechanism to move the filtering unit to a portion where the object is photographed.

Wherein when the filtering section is operated as a driving mechanism, the filtering processing step controls the driving mechanism to selectively repeat shooting the object in a state in which the object is filtered by the filtering section or not in the filtering processing .

According to the present invention, It is possible to acquire image data having a relatively uniform brightness by performing a filtering process of lowering the brightness of an object having a light source in the surrounding environment so that the camera unit can provide the image data secured with visibility.

By obtaining such image data, license plates, peripheral names, and the like can be acquired accurately and easily.

FIG. 1 is a schematic view showing a configuration of a vehicle image recording apparatus with improved visibility according to a first embodiment of the present invention.
FIG. 2 is a diagram schematically illustrating a filtering process of a vehicle image recording apparatus with improved visibility according to a first embodiment of the present invention.
3 is a flowchart schematically showing an image processing method of a vehicle image recording apparatus with improved visibility according to the first embodiment of the present invention.
4 is a schematic view of a video image recording apparatus for a vehicle having improved visibility according to a second embodiment of the present invention.
5 is a flowchart schematically showing an image processing method of a vehicle image recording apparatus with improved visibility according to a second embodiment of the present invention.
FIG. 6 is a diagram showing a schematic configuration of a vehicle image recording apparatus with improved visibility according to a third embodiment of the present invention.
7 is a flowchart schematically showing an image processing method of a vehicle image recording apparatus with improved visibility according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, a video event data recorder (VEDR) is installed in the vicinity of a vehicle such as a front, a rear, a left side, and a right side of the vehicle to photograph the surrounding environment of the vehicle.

For example, when the vehicle image recording apparatus is installed in front of the vehicle, the environment surrounding the front of the vehicle is photographed. When the vehicle is installed in the rear of the vehicle, the environment surrounding the rear of the vehicle is photographed. The context can be grasped.

On the other hand, when the driver driving the vehicle drives the vehicle in the nighttime, the headlight is turned on to secure the driver's view. At this time, the light of the headlight spreads around the camera, The information can not be clearly identified.

In this case, the vehicle image recording apparatuses 100, 200, and 300 having enhanced visibility of the present invention are used so as to provide image data that can clearly confirm headlamp peripheral information by performing a filtering process to lower the brightness of the headlamp portion.

In the embodiment of the present invention, it is described that the vehicle image recording apparatus photographs the surrounding environment behind the vehicle in a state in which the running time of the vehicle is at night.

However, by using the present invention, it is possible to perform a filtering process for lowering the brightness of a light source that emits brighter light than the surroundings such as the sun, even in a state in which the running time of the vehicle is a week.

Also, in the embodiment of the present invention, the headlight is described as being filtered, but it may be a light source such as a sunlight or a streetlight that emits bright light in addition to the headlight.

[ Example 1 ]

As shown in FIG. 1, the vehicle image recording apparatus 100 with improved visibility according to the first embodiment of the present invention may include a camera unit 120.

The camera unit 120 can acquire image data by photographing the surrounding environment by a method of detecting light reflected from the surrounding environment of the vehicle.

The camera unit 120 may include a CIS (CMOS Image Sensor), and an ISP (Image Signal Processing).

The CIS can detect light coming through the lens and convert the intensity of the light into electrical signals.

Meanwhile, the CIS may be configured by replacing a CCD image sensor (Charge-coupled Device Image Sensor) among the types of image sensors that convert light coming from a lens into an electrical signal.

The ISP acquires the image data by converting the electrical signal received from the CIS into a video signal.

On the other hand, an ISP can be implemented with a CIS and a single semiconductor chip.

As described above, the camera unit 120 detects light reflected from a person passing through the surroundings of the vehicle, such as a vehicle, a signboard, a milestone, a road, a streetlight, or the like, and converts the sensed light into image data And may provide image data to the controller 130 to be described.

The vehicle image recording apparatus 100 with improved visibility according to the first embodiment of the present invention may include a controller 130. [

As shown in FIG. 2, the controller 130 may analyze image data captured by the camera unit 120 according to a feature extraction algorithm stored in advance in a memory.

That is, the controller 130 may analyze the image data using the feature detection algorithm so as to extract a part of the object having the light source from the image data, and extract the part corresponding to the preset feature information in the controller 130 (See Figs. 2 (a) and 2 (b)).

For example, the controller 130 may store feature information having a feature of the headlamp in advance in the controller 130 so that the controller 130 can extract the headlamp, and extract the portion where the headlamp is located in the image data using the feature extraction algorithm.

On the other hand, Harr like feature algorithm using AdaBoost can be used as feature extraction algorithm.

A Harr like feature consists of two or more adjacent rectangular areas whose values are defined by the difference in brightness between the areas.

 That is, a rectangular area is superimposed, and then a difference in average of pixel values belonging to a dark area is obtained from an average of pixel values belonging to a bright area.

Based on the feature information stored in the controller 130, if the difference of the average exceeds the preset boundary value in the controller 130, it is determined that the position is a portion having the feature of the headlight, and a portion having the feature of the headlight is extracted .

On the other hand, the controller 130 can detect the object in the image data by analyzing the brightness of the portion corresponding to the feature information stored in the controller 130 so that the object 130 can detect the object having the light source in the image data (C)).

That is, the controller 130 analyzes the brightness of the portion extracted by the controller 130, and determines that the object is bright if the brightness of the extracted portion is brighter than the predetermined brightness, based on the brightness set in the controller 130, Can be detected.

For example, if the controller 130 analyzes the brightness of a part determined as a feature of the headlight and compares the brightness with the brightness set in the controller 130, the controller 130 determines that the brightness of the object It is possible to detect the portion where the headlight is located.

As described above, the controller 130 extracts a portion of the image data, such as a headlight or a street lamp, which reduces the visibility of the vehicle environment information by using the feature extraction algorithm, and analyzes the brightness of the extracted portion, It is possible to accurately detect an object having an object.

In addition, the controller 130 may control the filtering unit 110 to be described below so as to process the detected object.

When the controller detects an object, the controller 110 may control the filtering unit 110 to display or move the position of the object to adjust the degree of transparency.

The vehicle image recording apparatus 100 with improved visibility according to the first embodiment of the present invention may include a filtering unit 110. [

The filtering unit 110 is located in front of the camera unit 120 and can adjust the brightness of image data captured by the camera unit 120.

That is, the filtering unit 110 adjusts the transmittance of light entering the filtering unit 110 so that the camera unit 120 can provide image data that can clearly identify the surrounding information, You can adjust the brightness of the image to be shot.

Meanwhile, the filtering unit 110 may include a transparent display panel.

The transparent display panel includes a transparent LCD, an LED, and a transparent organic light emitting diode (hereinafter, referred to as TOLED), which can transmit light or output an image. have.

The transparent display panel is preferably an LCD or TOLED that provides various colors and high quality video output.

That is, the filtering unit 110 may display the filter image on the transparent display panel to adjust the transmittance of the transparent display panel, thereby adjusting the brightness of the image data captured by the camera unit 120.

Here, the filter image refers to an image that can control the transmittance of light entering the camera unit 120 by adjusting the transmittance of the transparent display panel so that the brightness of image data captured by the camera unit 120 is lowered.

For example, when the controller 130 detects the headlight, the periphery of the license plate of the rear vehicle is blurred due to the bright light of the headlight.

At this time, the transparent display panel displays the filter image so that the brightness of the image data photographed by the camera unit 120 is lowered, so that the camera unit 120 can acquire image data capable of identifying license plate information of the rear vehicle .

In addition, since the transparent display panel is a part that does not require filtering in the image data captured by the camera unit 120, more specifically, a part that does not have the headlight display area of the rear vehicle, the filtering is unnecessary. The filter image can be displayed only at a position corresponding to the position of the object detected by the object detecting unit 130 (FIG. 2 (d)).

For example, when the controller 130 detects the headlamp, the periphery of the license plate of the rear vehicle is blurred due to the bright light of the headlamp. At this time, the transparent display panel displays only the filter image at the position corresponding to the position of the object detected by the controller 130 And controls the transmittance of light.

When the display panel displays the filter image at the position corresponding to the position of the object detected by the controller 130, the visibility of identifying the part of the image data that does not require filtering can be secured. At the same time, It is possible to acquire image data capable of identifying the rear vehicle license plate, for example.

On the other hand, the transparent display panel may further include a projection plate.

The projection plate can be disposed in front of the camera 120 in which the image is introduced.

That is, the projection plate may be disposed at an angle to the front of the camera unit 120 and the display panel may be disposed below or above the projection plate to display the filter image on the projection plate in such a manner that the projection plate reflects the filter image output by the display panel.

At this time, the projection plate may be made of transparent glass or transparent plastic.

In addition, the projection plate may be replaced with glass provided in front, rear, left, and right of the vehicle in which the black box is installed.

The projection plate has a transparent display panel disposed obliquely to the front of the camera unit 120 and a projection plate disposed below or above the transparent display panel so that the projection plate reflects the filter image output by the display panel. Can be displayed.

For example, a transparent display panel including a projection plate is configured such that a display panel reflects a filter image on a glass of a vehicle, such as a head-up display (HUD) for projecting a virtual image in a visible region of a driver, The brightness of the image data photographed by the camera 120 can be lowered.

As such, the transparent display panel displays the filtered image so that the brightness of the image data captured by the camera unit 120 is lowered, so that the camera unit 120 can acquire image data that can identify license plate information of the rear vehicle .

In addition, the filtering unit 110 may be a polymer dispersed liquid crystal (PDLC), which is electrically transparent and opaque selectively.

The polymer dispersed liquid crystal has a pair of transparent electrode plates spaced apart from each other to face each other and electrically connected to each other and a polymer liquid crystal layer including liquid crystal molecules arranged regularly or irregularly according to selective supply of power between the pair of transparent electrode plates .

In the polymer dispersed liquid crystal having such a constitution, liquid crystal molecules of the polymer liquid crystal layer are regularly arranged to be transparent when supplied with power, and when the supply of power is interrupted, regular liquid crystal molecules are irregularly changed It may become opaque.

That is, the polymer dispersed liquid crystal becomes opaque only in a portion corresponding to the position of the object analyzed by the controller 130 in the image data so as to lower the brightness of the image data captured by the camera unit 120, It is possible to acquire image data having a relatively uniform brightness and to provide image data ensuring visibility.

For example, when the controller 130 detects the headlamp, the periphery of the license plate of the rear vehicle is blurred due to the bright light of the headlamp. At this time, the polymer dispersed liquid crystal has only the headlamp among the surrounding environment of the vehicle flowing into the camera unit 120 Only the position corresponding to the position of the object detected by the controller 130 can be made opaque so as to lower the transmittance of the object.

When the controller 130 controls the polymer dispersed liquid crystal so that only the portion corresponding to the position of the detected object is opaque, the visibility of identifying the portion of the image data that does not require filtering can be secured It is possible to acquire information about the object, for example, image data capable of identifying a rear license plate.

The vehicle image recording apparatus 100 with improved visibility according to the first embodiment of the present invention may include a storage unit 140. [

The storage unit 140 may temporarily or permanently store the image data processed by the controller 130. [

In this case, the storage unit 140 may be a separately provided memory for storing image data in the controller 130, an external server for storing in network communication, a separate network storage medium such as NAS, a removable memory card, An external storage medium such as an HDD, or a media storage medium such as a DVD, a BLUERAY, or the like.

Hereinafter, a video processing method of the video recording apparatus 100 for a vehicle having improved visibility according to the first embodiment of the present invention will be described (see FIG. 3).

First, the camera unit 120 captures the surrounding environment of the vehicle and acquires image data (S100).

That is, the CIS detects the light coming through the lens, converts the intensity of the light into an electrical signal, and the ISP acquires the image data by converting the electrical signal received from the CIS into a video signal.

The controller 130 receives the image data from the camera unit 120 and analyzes the image data.

That is, the controller 130 analyzes the image data using the feature detection algorithm stored in advance in the memory so that the part of the object having the light source can be extracted from the image data, The characteristic of the portion having the headlight light source can be extracted (S110).

For example, the controller 130 stores feature information having the feature of the headlamp in advance in the controller 130 so that the controller 130 can extract the headlamp, and extracts the portion where the headlamp is located in the image data using the feature extraction algorithm.

Then, the controller 130 analyzes the brightness of the extracted portion, and if it is a portion having brightness brighter than a preset brightness, it determines that the object is an object and detects the object (S120).

For example, if the controller 130 extracts a portion having a feature of the headlight, the brightness of the portion is extracted and if the brightness is higher than the brightness set in the controller 130, the extracted portion is determined to be the headlight and the headlight can be detected.

Here, if the controller 130 does not detect an object, the camera unit 120 stores the captured image data in the storage unit 140, and the camera unit 120 continuously captures the surroundings of the vehicle and acquires the image data .

When the controller 130 detects the object, the filtering unit 110 controls the filtering unit 110 to adjust the brightness of the image data captured by the camera unit 120 (S130).

In operation S140, the filtering unit 110 may display a filter image only in a portion corresponding to the position of the object analyzed by the controller 130, thereby adjusting the brightness of the image data captured by the camera unit 120.

In this case, when the filtering unit 110 is a transparent display panel, the transparent display panel displays an image only in a portion corresponding to the position of the object so that the brightness of only the object is lowered in the image captured by the camera, Can be prevented from being lowered.

As described above, the filtering unit 110 may display the filter image so that the camera unit 120 acquires image data having a relatively uniform brightness, so that the camera unit 120 can provide the image data having visibility.

The controller 130 stores the image data acquired by the camera unit 120 through the filtering unit 110 in the storage unit 140 (S150).

Accordingly, the camera unit 120 may acquire image data having a relatively uniform brightness by performing a filtering process to lower the brightness of the object having the light source in the surrounding environment, thereby providing the image data having the visibility.

By obtaining such image data, license plates, peripheral names, and the like can be acquired accurately and easily.

[ Example  2]

In the second embodiment, detailed description of the same components as those in the first embodiment will be omitted.

As shown in FIG. 4, it may include a filtering unit 210 of the video recording apparatus 200 for a vehicle having improved visibility according to the second embodiment of the present invention.

In addition, the filtering unit 210 may include a polarizing plate.

This polarizing plate can reduce the transmission of light by using the property that the optical isomer polarizes the transmitted light polarized along the direction. If the filtering unit 210 is made of a polarizing plate, the manufacturing cost of the black box can be reduced.

On the other hand, a driving mechanism 215 for driving the filtering unit 210 may be provided.

The drive mechanism 215 moves on the drive rail 216 when one side of the drive mechanism 215 is coupled to the filtering unit 210 and the other side of the drive mechanism 215 is gear- The filtering unit 210 coupled to the driving mechanism 215 can be freely moved in front of the camera unit 220.

That is, when the position information of the object detected from the controller 230 is inputted, the drive mechanism 215 controls the filtering unit 210 such as a polarizing plate to lower the brightness of only the portion corresponding to the position of the object detected by the control channel 230, .

Thus, the camera unit 220 can obtain more accurate image data by positioning the filtering unit 210 more precisely at the position where the driving mechanism 215 is gear-coupled with the motor so that the power is transmitted and filtered.

An image processing method of the vehicle image recording apparatus 200 with improved visibility according to the second embodiment of the present invention will be described below (see FIG. 5).

The steps of image acquisition (S200), feature extraction (S210), object detection (S220), filtering (S230), and storing the acquired image (S250) are the same as those in the first embodiment.

The difference from the first embodiment is that the driving mechanism 315 controls the driving mechanism to move the filtering unit 210 along the driving rail 316 to the object detecting position in the filtering processing step S230, And a filtering unit moving step (S240) in which the filtering unit moves.

That is, the driving mechanism 215 receives the power of the motor, and the filtering unit 210 is positioned more accurately on the portion corresponding to the position of the object, so that the camera unit 220 can acquire more accurate image data.

For example , when the controller 230 detects the headlight, the filtering unit 210 controls the driving unit 215 so that the controller 230 lowers the brightness of the image data only in the portion corresponding to the position of the object analyzed by the controller 230. [ And moves the filtering unit 210 such as a polarizing plate to a position corresponding to the object analyzed by the controller 230.

[ Example  3]

In the third embodiment, detailed description of the same configuration as the first embodiment and the second embodiment will be omitted.

As shown in FIG. 6, the apparatus may include a filtering unit 310 of the video recording apparatus 300 for a vehicle having improved visibility according to the third embodiment of the present invention.

The controller 330 turns on the operation of the filtering unit 310 to move the filtering unit 310 to the front of the camera unit 320 at a predetermined time interval and then turns the operation of the filtering unit 310 backward It is possible to control the driving mechanism 315 to turn off the operation of the filtering part in such a manner as to move to a part other than the front part of the camera part 320. [

The camera unit 320 moves the filtering unit 310 so that the filtering unit 310 is positioned at a predetermined time interval in front of the camera unit 320. The camera unit 320 converts the brightness of the image data and the normal image The data is selectively stored repeatedly so that it can be prepared.

For example, if the preset time is 1 second, the driving mechanism 315 moves the filtering unit 310 to the front of the camera unit 320 so that the camera unit 320 acquires the image data whose brightness is decreased, The driving mechanism 315 can move the filtering unit 310 back to the top of the camera unit 320 so that the camera unit 320 can acquire image data without filtering.

As described above, when the filtered image data and the unfiltered general image data are alternately photographed and prepared, it is possible to receive the image data with the visibility secured in the judgment of the accident situation.

Hereinafter, an image processing method of the video recording apparatus 300 for a vehicle having improved visibility according to another embodiment of the present invention will be described (refer to FIG. 7).

The steps of image acquisition (S300), feature extraction (S310), object detection (S320), filtering processing (330), and storage of acquired images (S350) are the same as those of the first embodiment.

The difference from the first embodiment is that the driving mechanism 315 in the filtering processing step 330 moves forward and backward through the driving rail 316 to the object detection position, (S340). ≪ / RTI >

That is, it is possible to control the driving mechanism to selectively repeat shooting the object in a state in which the object is filtered by the filtering unit or not filtered.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but variations and modifications may be made without departing from the scope of the present invention. Will be possible.

100, 200, 300: Vehicle image recording device with improved visibility
110, 210, 310:
120, 220,
130, 230,
140, 240,
215,
216,

Claims (12)

A camera unit for photographing the surroundings of the vehicle and acquiring image data,
A filtering unit for filtering image data input to the camera unit so that the brightness of the image data photographed by the camera unit is adjusted,
A controller that detects an object based on a predetermined feature and brightness in the image data and controls the filtering unit to filter the object;
And a storage unit for storing the image data acquired by the camera unit. The method according to claim 1,
The filtering unit
Wherein the transparent display panel displays a filter image to adjust the transmittance of the object at a position corresponding to the position of the object. 3. The method of claim 2,
The transparent display panel
Further comprising a projection plate disposed in front of the camera unit to receive image data and reflecting the filter image displayed on the display panel to project the filtered image. The method according to claim 1,
The filtering unit
And a polymer dispersed liquid crystal (PDLC) which is electrically transparent and opaque selectively. The method according to claim 1,
The filtering unit
And a driving mechanism for driving the filtering unit. 6. The method of claim 5,
The controller
And controls the driving mechanism such that the filtering unit is located at a position corresponding to the object. 6. The method of claim 5,
The controller
Wherein the driving mechanism repeatedly acquires image data captured by the camera when the filtering unit is ON and image data captured by the camera when the filtering unit is OFF. The method according to claim 1,
The filtering unit
Wherein the polarizer is configured to transmit only light corresponding to the polarization axis of the light incident on the camera unit to adjust the brightness of the image data. An image capturing step of capturing image data of a surrounding environment of the vehicle,
A feature extraction step of extracting a part corresponding to a predetermined feature from the image data acquired in the image acquisition step,
An object detecting step of detecting a portion of the extracted portion extracted by the feature extracting step and having a brightness lower than a predetermined brightness as an object and detecting the object;
And a filtering processing step of filtering a part of the object to be photographed in a filtering unit for adjusting the transparency so that the brightness of the object detected in the object detecting step is adjusted in a state in which the brightness of the object is adjusted. A method of image processing of a recording apparatus. 10. The method of claim 9,
When the filtering unit is a transparent display panel,
The filtering processing step
And displaying a filter image for adjusting the transmittance so that the brightness of the object is adjusted at a portion where the object is photographed. 10. The method of claim 9,
When the filtering section includes a driving mechanism for driving the filtering section, the filtering processing step
And a filter moving step of operating the driving mechanism to position the filtering unit as a part where the object is photographed. 10. The method of claim 9,
When the filtering section includes a driving mechanism for driving the filtering section, the filtering processing step
Further comprising a drive control step of controlling the drive mechanism such that the object is photographed by the filtering unit to be photographed or photographed without the filtering process.

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