KR20130105246A - System and method of processing image for preserving private life - Google Patents

Abstract

PURPOSE: A privacy protecting image mask processing system and a method thereof are provided to exactly perform a privacy mask process about a subject, to stereoscopically grasp information of a monitoring area which is an actual 3D space, to continuously perform monitoring, and to secure a mask released image before the subject enters the monitoring area. CONSTITUTION: An image photographing unit generates first image data (S120). An image setting unit sets privacy information of the first image data (S110). An image editing unit edits the first image data based on the privacy information and generates second image data by generating or releasing a mask area which blocks identification of a subject. The image editing unit generates or releases the mask area about the subject corresponding to an event when the event occurs (S150). [Reference numerals] (S110) Set privacy information; (S120) Generate first image data; (S130) Load the privacy information; (S140) Decide whether there is a subject corresponding to the privacy information; (S150) Generate a mask area for the subject

Description

Privacy image processing system and method {SYSTEM AND METHOD OF PROCESSING IMAGE FOR PRESERVING PRIVATE LIFE}

The present invention relates to a privacy protection image processing system and method, and more particularly, to a privacy protection image processing system and method capable of precisely performing a privacy mask process on a protected area in an acquired image.

The surveillance camera used for the purpose of security or security is attached to a specific area or place to be monitored, and the camera images photographed by the surveillance camera are output to a digital video recorder (DVR) or the like, and the monitor screen. Is recorded on the recording medium such as a hard disk or the like.

The surveillance camera can be rotated in the horizontal direction or rotated in the vertical direction to change the surveillance region to another direction and the zoom object or the like provided in the surveillance camera can be adjusted to enlarge or reduce the object have.

In the surveillance camera, a mask function is provided to generate and display a privacy mask having a predetermined size on a specific object for which privacy protection or the like is required, so that the specific subject is not exposed and displayed in the surveillance image.

That is, when the mask generation mode is set to prevent an object displayed on a specific portion of the camera image from being exposed to unauthorized exposure, the surveillance camera has a start position coordinate (Xs, Ys) and an end position corresponding to the specific portion. A mask having a size corresponding to the coordinates Xe and Ye is generated.

Domestic Patent Publication No. 2009-0040620 Japanese Patent Publication No. 2010-278548 Korean Patent Publication No. 2007-0048841

As described above, since the conventional mask technique for protecting the privacy of the subject treats the acquired image as a two-dimensional plane, the mask is disposed so that the subject is exposed by overlapping the mask at the position of the subject to protect the subject. Will be blocked.

Such a planar mask technique does not consider the concept of space and distance on an actual three-dimensional image captured in an acquired image, and thus mask processing of a dynamic object is not smooth.

In addition, there are aspects that are difficult to use in three dimensions such as creating a mask on a subject in some areas by dividing a specific area among the areas photographed by the surveillance camera, and setting a mask so as not to create a mask on the subject in other areas. Even if the zone is divided into two-dimensional planes, when the surveillance camera changes the view angle, the axis of the boundary divided into two-dimensional planes is changed, which causes inconvenience to be newly set up every time.

In particular, the main subject to be monitored once entered the surveillance area needs to be monitored continuously even if it exits from the surveillance area, and the video before entering the surveillance area is monitored together to enable more systematic surveillance. Needs to be.

SUMMARY OF THE INVENTION The present invention has been conceived from this point, and a problem to be solved by the present invention is a privacy protection image processing system and method capable of precisely performing a privacy mask processing on a subject photographed on image data obtained by a surveillance camera. Is to provide.

Another problem to be solved by the present invention is to determine the position of the subject by using the coordinates in consideration of the reference axis changed by the actual photographing angle of the image data acquired by the surveillance camera to three-dimensional information of the surveillance region of the actual three-dimensional space It is an object of the present invention to provide a privacy protection image processing system and method.

Another problem to be solved by the present invention is that the main subject to be monitored once entered a certain surveillance area, even if it is out of the surveillance area to be monitored continuously by releasing the mask, without the mask By further providing a buffer unit for storing raw data, the present invention provides a privacy protection image processing system and method that can secure an unmasked image before a main subject to be monitored, such as an offender, enters a surveillance area. I would like to.

Problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a privacy protection image processing system including an image photographing unit generating first image data, an information setting unit setting privacy information of the first image data, and the privacy. And an image editing unit for generating second image data by generating or releasing a mask area that blocks identification of a subject by editing the first image data based on the information, wherein the image editing unit, when a predetermined event occurs Correspondingly, the mask area for the subject is generated or released.

The privacy protection image processing method according to the embodiment of the present invention may include generating first image data, setting privacy information of the first image data, and generating the first image data based on the privacy information. Generating second image data by generating or releasing a mask area to block identification of the subject by editing, wherein generating the second image data corresponds to the subject when a predetermined event occurs. Generating or releasing the mask area for.

Other specific details of the invention are included in the detailed description and drawings.

1 is a block diagram illustrating a privacy protection image processing system according to an exemplary embodiment.
FIG. 2 is a diagram illustrating an example of image data acquired by the system of FIG. 1.
3 is a diagram illustrating a state in which coordinate data is applied to the image data of FIG. 2.
FIG. 4 is a diagram illustrating a state in which a privacy mask is set for a subject present in a predetermined range of coordinates based on the coordinate data of FIG. 3.
FIG. 5 is a diagram illustrating the image data of FIG. 2 divided into a plurality of zones.
FIG. 6 is a diagram illustrating PIP data of a subject existing in a first region of the image data of FIG. 5.
FIG. 7 is a diagram illustrating a state in which a privacy mask is set for a subject existing in a third region of the image data of FIG. 5.
8A and 8B illustrate a state in which a privacy mask is set on a subject existing within a predetermined range of the second zone among the image data of FIG. 5.
9 is a flowchart illustrating a privacy protection image processing method according to an embodiment of the present invention.
FIG. 10 is a flowchart illustrating a privacy setting process of FIG. 9.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. The dimensions and relative sizes of layers and regions in the figures may be exaggerated for clarity of illustration.

In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms "comprises" and / or "made of" means that a component, step, operation, and / or element may be embodied in one or more other components, steps, operations, and / And does not exclude the presence or addition thereof.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" and the like, Lt; / RTI > can be used to easily describe the correlation between the two. Like reference numerals refer to like elements throughout.

Hereinafter, a privacy protection image processing system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. 1 is a block diagram illustrating a privacy protection image processing system according to an exemplary embodiment of the present invention, FIG. 2 is a diagram illustrating an example of image data acquired by the system of FIG. 1, and FIG. 3 is a diagram of FIG. 2. FIG. 4 is a diagram illustrating a state in which coordinate data is applied to image data, and FIG. 4 is a diagram illustrating a state in which a privacy mask is set for a subject existing at a predetermined range of coordinates based on the coordinate data of FIG. 3.

Referring to FIG. 1, the privacy protection image processing system according to an exemplary embodiment of the present invention includes an image capturing unit 110 generating image data, an information setting unit 120 setting privacy information of the image data, and And an image editor 130 for editing the image data based on the privacy information to generate a mask area for blocking identification of the subject.

In some other embodiments, the privacy information may include coordinate data set as a range on the image data, and the coordinate data may include coordinate information or distance information on 3D of a subject present on the image data.

The image capturing unit 110 acquires an image of an interior or an exterior of a building or a specific area and converts the image into image data. The image capturing unit 110 may include a camera unit for photographing an actual image, an encoder unit connected to the camera unit to generate analog or digital image data, and a transmission / reception unit for transmitting the image data to a detection monitor or the like. have.

For example, the image capturing unit 110 may be a closed-circuit television (CCTV), but is not limited thereto. The concept may include all known camera units including a plurality of optical lenses, imaging devices such as CCDs, and the like. Can be.

As shown in FIG. 2, the image capturing unit 110 may generate the image data 200 of a predetermined region at a predetermined angle at the installed point. The image data 200 may include various subjects, and the subject may include various objects in addition to humans. In addition, the image capturing unit 110 may include a driving means such as an actuator, and may rotate to acquire images of different angles along a predetermined rotation axis.

In general, the image capturing unit 110 is installed at a predetermined position for the purpose of crime prevention or security, and secures an image of an intruder or a behavior winner who illegally invades a private land or a private area, and prepares for an intrusion or escapes an intruder. Can be used to identify personal information.

However, according to the photographing angle of the image capturing unit 110, an image of another person's privacy area may be obtained. In such a case, there may be a problem such as invasion of privacy. For example, when the image capturing unit 110 is installed at a predetermined position in order to acquire an image of the inside of the house and the vicinity of the wall boundary of the user, an image of the outside of the house beyond the wall boundary may be obtained together. When the angle between the unit 110 and the ground is low, images of a long distance are captured together, so that an image of another person's house may also be acquired.

Referring back to FIG. 1, in order to prevent such an unintended invasion of privacy, the information setting unit 120 may set privacy information in advance, and the image capturing unit may be configured by the image editing unit 130 based on the set privacy information. The image data acquired by 110 may be modified to provide the user with image data in which a privacy mask is set.

For example, as shown in FIG. 4, in consideration of the privacy of the subjects P1, P2, and P3 existing outside the region to be monitored, the image editing unit 130 may modify the image data 200 to display the image. The privacy masks M1, M2, and M3 may be overlapped at predetermined positions on the data 200. Due to such a privacy mask, identification of the subjects P1, P2, and P3 may be blocked, thereby preventing unintended invasion of privacy.

The subject to be masked may not be limited to a person, and may be an object such as a window of another house captured in the image data 200, for example, a predetermined area where privacy infringement is concerned. In addition, when the subject is a human, the face region may be extracted through a predetermined algorithm for extracting the face region, and a privacy mask may be set only on the face region based on the predetermined algorithm.

As the face region extraction algorithm, various known techniques may be used. For example, using a solid background image on a plane or using a predefined fixed background image to detect a face under a controlled background image, using a typical skin color to detect a face based on the face color, image data Techniques for simple extraction of facial regions moving on the network, and neural network access techniques using statistical cluster information may be used, but are not limited thereto.

In addition, the privacy mask may color a predetermined area with an opaque color or a color in which the subject cannot be identified. However, the privacy mask is not limited thereto, and the mask area may be generated by applying a mosaic effect to the mass.

The image editing unit 130 may employ an event driven marking system, and when a predetermined event occurs, the image editing unit 130 may select the mask regions M1, M2, and M3 of the subjects P1, P2, and P3 in response to the occurrence of a predetermined event. Can be created or released.

For example, the event may occur when the photographing time of the image capturing unit 110 is night, and in this case, the image editing unit 130 may release the mask area of the subject. For example, in an image taken from 10 pm to 4 am, which is an emergency time zone, the mask area of all subjects may be released regardless of the area or position, and the mask area of the subject in some areas may be released.

As another example, the event may occur when a time for which the subject is exposed to the image capturing unit 110 is greater than or equal to a predetermined time unit. In this case, the image editing unit 130 may release the mask area of the subject. That is, a subject exposed to a predetermined time or more may be recognized as having an increased probability of performing a specific dangerous action, and may obtain information on the subject by releasing the mask of the subject.

As another example, the privacy information may include information of the zone to be monitored and information of the privacy protection zone, an event occurs when the subject enters the zone to be monitored, and the image editing unit 130 may include a mask area of the subject. Can be released. That is, when a subject enters a specific zone by dividing the zone in the image as shown in FIG. 5 to be described later, the mask area of the subject may be set or released.

In this case, when the subject entering the surveillance region moves to the privacy protection region, the image editing unit 130 may maintain a state in which the mask region of the subject is released on the masked second image data. That is, even after explicitly leaving the monitoring target area, the subject can be continuously monitored by maintaining the mask release state.

Separately, a data buffer unit (not shown) for temporarily storing first image data corresponding to raw data before mask processing generated from the image capturing unit 110 may be further included. The editing unit 130 may replace the masked second image data before entering the surveillance target region with respect to the subject with the unmasked first image data of the same time interval. That is, when the manager or the like later monitors the second image data, the mask before entering the surveillance zone for the subject entering the surveillance zone so that the entire path and behavior of the subject that has already been determined to be dangerous may be tracked. Raw data in the released state may be generated.

In addition, the privacy information may further include information on the selective monitoring target zone, and the mask area of the monitoring target zone and the mask area of the selective monitoring target zone may be different from each other. For example, as described above, when an event occurs when the photographing time is night, the mask may be set for the subject in the surveillance region and the mask may be released for the subject in the selective surveillance region.

In addition, the image editing unit 130 may set different concentrations of the mask area with respect to the subject according to the type of the generated event. For example, in the case of an event occurring when the recording time is night, the brightness of the image data that has already been taken is low, so that the density of the mask area may be reduced accordingly. For example, when the exposure is performed for 5 minutes or more, the density of the mask area formed on the subject may be set to decrease by a predetermined ratio, for example, 30%. As the time for which the subject is exposed to the image capturing unit 110 increases, the density of the mask area may be gradually decreased.

As shown in FIG. 3, the privacy information set by the information setting unit 120 may include coordinate data set to a predetermined range on the image data 200, and such coordinate data may be included on the image data 200. It may include coordinate information or distance information on the three-dimensional image of the subject existing in the.

For example, when privacy information is a coordinate data for which a privacy mask is to be set, and a moving subject is set as a privacy protection target when a moving subject exists on one quadrant of the X-axis and the Y-axis, the first subject to the first quadrant present in the first quadrant. 3 The subjects P1, P2, and P3 may be recognized as privacy protection objects. The image editing unit 130 analyzes each frame constituting the image data 200 and detects a moving subject, and privacy at a position where the subjects P1, P2, and P3 exist in one quadrant of the moving subject among the moving subjects. You can set a mask.

To this end, the image editing unit 130 may define an XY plane based on the ground on the Z axis (not shown), and set the X and Y axes of the image data by receiving the shooting angle information of the image capturing unit 110. Can be.

Coordinates of each subject extracted based on this may be determined based on a center point on the ground of the subject. However, the present invention is not limited thereto, and height information on the Z axis may be considered when the end portion of the subject is higher than the ground. For example, since the second subject P2 is in contact with the ground, the height information of the Z axis may be omitted, whereas in the case of the first subject P1 located inside a predetermined building, the height of the second subject P2 may be lower than the ground. In this case, privacy information may be set in consideration of the height on the Z axis.

In some embodiments, the location of the first subject P1 may be collectively projected onto the XY plane where Z = 0 to include only coordinate information on the XY plane without considering height.

In this way, the coordinate information on the 3D, which constitutes the coordinate data included in the set privacy information, is mapped by the image editing unit 130 to the image data in the form of a two-dimensional plane, thereby enabling a precise privacy mask operation.

In addition, when the photographing angle of the image capturing unit 110 changes, each axis of the 3D coordinates may be rotated based on the image capturing angle of the image data 200.

Therefore, even when the composition or the focus of the image data 200 is changed around the reference line, the axis forming the coordinate data is correspondingly rotated so that privacy mask setting can be precisely performed on the various image data 200.

Next, a privacy protection image processing system according to an embodiment of the present invention will be described with reference to FIGS. 5 to 8B. 5 is a diagram illustrating a state in which the image data of FIG. 2 is divided into a plurality of zones, and FIG. 6 is a diagram illustrating PIP (Picture In Picture) data of a subject existing in a first zone among the image data of FIG. 5. FIG. 7 is a diagram illustrating a privacy mask set for a subject in a third zone of the image data of FIG. 5, and FIGS. 8A and 8B are within a predetermined range of the second zone of the image data of FIG. 5. FIG. 1 shows a state in which a privacy mask is set for a subject.

The privacy information on the image data 200 may further include zone information that divides a screen shot on the image data 200 into a plurality of zones.

For example, as shown in FIG. 5, on the image data 200 acquired by the image capturing unit 110, the residential area of the user is set as the first zone 200a based on the boundary surface (fence). After setting the public road area existing outside the living space and used by pedestrians as the second zone 200b, and setting the building area of the other side of the public road as the third zone 200c, You can set the privacy level.

Referring to FIG. 6, in the case of the first zone 200a which is a residential area of the user, the first zone 200a is a main target area that an actual user wants to monitor, and the first zone is a zone where no pedestrians are captured when not intruded. For the subject P4 in the 200a, picture in picture (PIP) data 210 in which the detected face area is enlarged is added to the image data 200 so that the user acquires information on the subject in the first zone 200a. can do. According to the user's setting, the PIP data 210 may be limitedly displayed only when the subject P4 is detected for a predetermined time unit in the first zone 200a.

On the other hand, in the case of the second area 200b, which is a common road area used by pedestrians in general, privacy mask processing may not be performed on the subjects P2 and P3 depending on the setting. Such setting items may be arbitrarily set by the user through the information setting unit 120.

Referring to FIG. 7, since the third zone 200c, which is the building area of another person, may have an image of the inside of the building, there is a high possibility of a privacy infringement problem. Therefore, the third zone 200c may be set as the privacy protection target. In addition, mask processing may be performed so that all subjects in the third zone 200c may not be identified, or mask processing may be limited to moving subjects.

As described above, the detection area may be previously divided into predetermined units to set different privacy levels for each zone, and the privacy mask setting may be differently applied by dividing the predetermined zone even in one zone.

For example, referring to FIGS. 8A and 8B, a privacy mask may be applied only to a subject in the range Y1 <Y <Y2 among the subjects in the second area 200b on the coordinate data mapped to the image data 200 based on the Y axis. M2) can be set to apply. Therefore, even if the subject is in the same second area 200b, the privacy mask may not be set for the subject that is outside the corresponding Y-axis range.

In addition, the privacy mask M2 may be applied only to a subject in the range X1 <Y <Y2 and X1 <X <X2 among the subjects in the second area 200b on the coordinate data mapped to the image data 200 based on the X and Y axes. ) Can be set to apply. Therefore, even if the subject is in the same second area 200b, the privacy mask may not be set to the subject that is outside the X- and Y-axis ranges.

In some embodiments, when the subject moves between zones having different privacy levels, the image editing unit 130 may detect this and set or release the privacy mask set on the subject.

For example, when the first subject P1 illustrated in FIG. 7 is separated from the third zone 200c, which is the privacy protection zone, and enters the second zone 200b or the first zone 200a, the first subject P1 may be used. The privacy mask M1 masked on the subject P1 is released and the first subject P1 can be identified.

On the contrary, as shown in FIG. 6, when the fourth subject P4 stays in the first zone 200a, which is the concentrated monitoring zone, for more than a predetermined time, and enters the second zone 200b or the third zone 200c. In this case, the fourth subject P4 may be recognized as a person of interest, and the privacy mask may be released regardless of the moving position of the fourth subject P4. Therefore, even if the fourth subject P4 enters the third zone 200c which is the privacy protection zone, the mask may not be set for the fourth subject P4.

In addition, as shown in FIG. 8A, when the second subject P2 currently located in the predetermined area Y1 <Y <Y2 on the second area 200b moves, the Y-axis coordinates deviate between Y1 and Y2. The privacy mask M2 may be released.

As described above, since a subject, in particular, a person generally moves to a predetermined position on the image data 200 with time, the mask may be set or released in consideration of the position of the subject for each frame constituting the image data 200. By setting various options according to the situation, it is possible to set whether the privacy mask is set in each zone and whether or not to set or release the privacy mask when moving between the zones according to the user's convenience.

Hereinafter, a privacy guard image processing method according to an embodiment of the present invention will be described with reference to FIGS. 9 and 10. 9 is a flowchart illustrating a privacy protection image processing method according to an embodiment of the present invention, and FIG. 10 is a flowchart illustrating the privacy setting process of FIG. 9 in detail.

Referring to FIG. 9, in the privacy protection image processing method according to the exemplary embodiment of the present disclosure, the method may include capturing image data (S120), loading preset privacy information (S130), and based on the privacy information. The method may include determining whether a subject corresponding to the privacy information exists in the image data (S140), and generating a mask region that blocks identification of the determined subject (S150).

In some other embodiments, the privacy information may include coordinate data set to a range on the image data, and the coordinate data may include coordinate information on three-dimensional images of a subject present on the image data.

9 and 10, privacy information is set according to a user's situation (S110). The setting of the privacy information is illustrated as being performed before the imaging of the image data (S120), but is not limited thereto. The privacy information may be performed after the imaging of the image data, and the privacy information is not set. While operating the surveillance camera in use, privacy information may be newly set or changed.

As described above, the image data acquired by the surveillance camera may be divided into a plurality of zones in consideration of the installation location and surrounding conditions of the surveillance camera set by the user (S111), and coordinates within one zone The location may be set to generate a privacy mask only for a subject at the location. Each zone divided into a plurality of zones may be applied with different privacy levels, so that a privacy mask may be generated or PIP data may be generated.

In addition, the method may further include setting a type of coordinates applied to the image data (S112). For example, the coordinates applied to the image data may treat a subject existing in the image data as three-dimensional coordinates, in which case the height information from the ground (Z-axis coordinate) may be considered together. That is, three axes as a reference may be set by analyzing the ground state, the building arrangement state, and the like of the acquired image data, and the position information of the subject in the image data may be precisely extracted based on the three axes.

On the other hand, a subject existing in the image data may be treated as two-dimensional coordinates. In this case, each position information and distance information may be considered by projecting on a two-dimensional XY plane, for example, the ground, without considering height difference between subjects.

Coordinate data included in privacy information may be set based on the set coordinate type as described above (S113). That is, the coordinate data may be generated by masking a subject existing at the image data and determining which object is not masked at which point. Later, based on such coordinate data, it may be determined whether the subject has a privacy mask.

As described above, the coordinate data may be set to a specific position or may be set in a plurality of divided zone units.

In addition, the option for the zone included in the privacy information and / or the option for the subject may be variously set (S114). When the subject moves between the zones, or when the subject moves within one zone, the subject may detect and move to create or release a privacy mask set for the current subject. The generation range (face or entire body) of the mask may be set, and the time range staying in the corresponding area may be set, and the mask may be set or released when staying for a predetermined time or more.

The privacy information generated as described above is stored (S115), and if the image data is secured later, the privacy information may be loaded by applying the corresponding privacy information.

Subsequently, the image capturing unit is operated to capture image data (S120), and when the image data is secured, the stored privacy information is read (S130). Privacy information may be changed, modified or deleted according to the user at any time.

After analyzing the image data to determine whether there is a subject corresponding to the privacy information (S140), a privacy mask is generated for the subject corresponding thereto to protect the subject from being identified (S150).

As described above, the first image data corresponding to the raw data initially acquired by the image capturing unit may be separately stored and managed by a buffer unit or the like separately provided.

Although not mentioned above, the privacy protection image processing method according to the present embodiment may be substantially the same as the configuration and operation principle of the privacy protection image processing system described above, and a redundant description thereof will be omitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

110: image pickup unit
120: information setting unit
130: image editing unit

Claims (20)

An image photographing unit generating first image data;
An information setting unit for setting privacy information of the first image data; And
And an image editing unit configured to generate second image data by generating or releasing a mask area that blocks identification of a subject by editing the first image data based on the privacy information.
And the image editing unit generates or releases the mask area for the subject when a predetermined event occurs. The method of claim 1,
The event occurs when the shooting time of the image pickup unit is night,
And the image editing unit releases the mask area of the subject. The method of claim 1,
The event occurs when the time that the subject is exposed to the image capturing unit is more than a predetermined time unit,
And the image editing unit releases the mask area of the subject. The method of claim 1,
The privacy information,
Includes information in the first zone being monitored and information in the second zone being privacy protected,
The event occurs when the subject enters the first zone,
And the image editing unit releases the mask area of the subject. 5. The method of claim 4,
The image editing unit maintains a state in which the mask area for the subject is released on the second image data when the subject entering the first region moves to the second region. . 5. The method of claim 4,
And a data buffer unit for temporarily storing the first image data generated from the image capturing unit. The method according to claim 6,
The image editing unit,
And replacing the second image data before entering the first zone with respect to the subject with the first image data in the same time interval. 5. The method of claim 4,
The image editing unit,
And when the subject having the face area is detected in the first area for a predetermined time unit, adding the PIP data in which the face area is enlarged to the second image data. The method of claim 1,
The privacy information,
Information of the first zone to be monitored, information of the second zone to be privacy protected, and information of the third zone to be selectively monitored,
And the image editing unit sets the mask area of the subject entering the second zone differently from the mask area of the subject entering the third zone. The method of claim 1,
And the image editing unit sets different concentrations of the mask area for the subject according to the type of the event. Generating first image data;
Setting privacy information of the first image data; And
And generating second image data by generating or releasing a mask area that blocks identification of a subject by editing the first image data based on the privacy information.
The generating of the second image data may further include generating or releasing the mask area for the subject when a predetermined event occurs. 12. The method of claim 11,
The event occurs when the shooting time of the image pickup unit is night,
And in the generating of the second image data, the mask area of the subject is released. 12. The method of claim 11,
The event occurs when the time that the subject is exposed to the image capturing unit is more than a predetermined time unit,
And in the generating of the second image data, the mask area of the subject is released. 12. The method of claim 11,
The privacy information,
Includes information in the first zone being monitored and information in the second zone being privacy protected,
The event occurs when the subject enters the first zone,
And in the generating of the second image data, the mask area of the subject is released. 15. The method of claim 14,
In the generating of the second image data, when the subject entering the first zone moves to the second zone, the mask area for the subject is released on the second image data. , Privacy image processing method. 15. The method of claim 14,
And temporarily storing the first image data generated from the image capturing unit. 17. The method of claim 16,
In generating the second image data,
And replacing the second image data before entering the first zone with respect to the subject with the first image data in the same time interval. 15. The method of claim 14,
In generating the second image data,
And detecting the subject having the face area in the first area for a predetermined time unit, adding the PIP data in which the face area is enlarged to the second image data. 12. The method of claim 11,
The privacy information,
Information of the first zone to be monitored, information of the second zone to be privacy protected, and information of the third zone to be selectively monitored,
And generating the second image data, differently setting the mask area of the subject entering the second zone and the mask area of the subject entering the third zone. 12. The method of claim 11,
In the generating of the second image data, the concentration of the mask area for the subject is set differently according to the type of the event.

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