KR20140128838A - Image-processing Apparatus for Car and Method of Processing Data Using The Same - Google Patents

Abstract

The present invention relates to an image processing apparatus for a vehicle and a data processing method using the same. The present invention provides an image processing apparatus for a vehicle, which stores moving pictures taken by a camera in a photograph file format in order to prevent manipulation on the moving pictures, adds an arbitrary regular code (encryption key) and a stamp to a photograph file to encrypt the photograph file, and encodes the encrypted photograph file, such that distortion or manipulation to the images taken by the black box are prevented. The present also provides a data processing method using the image processing apparatus for a vehicle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus,

[0001] The present invention relates to a video processing apparatus for a vehicle, and in order to prevent a video file photographed by a vehicle black box, a moving picture photographed through a camera is stored in the form of a picture file, And encrypting an encrypted picture file by adding a stamp to a black-box photographing image, thereby preventing distortion or manipulation of the black-box photographing image, and a data processing method using the same.

Currently, many car owners are finding that the causes of traffic accidents are easy to identify, and the proportion of installing black boxes for vehicles is minimized to minimize disputes between the parties due to traffic accidents. It is a tendency to recommend mounting black boxes.

Accordingly, by using the image data stored in the black box installed in each vehicle for use in traffic flow management, the utilization of data stored in the black box is increasing to prevent efficient traffic control and traffic accidents.

In this way, since the situation at the time of the accident (video, vehicle speed, collision angle, post-processing process, etc.) is stored as images, disputes between the parties are minimized and used as legal data. It is used as an important data in the identification of the cause. In addition, the crime scene also plays a role as CCTV, so black box demand is increasing. However, damage to privacy and image manipulation caused by unreasonable image leakage is also occurring. It manipulates images to manipulate or destroy evidence of accidents so that they can not be used. Therefore, it is necessary to add encryption technology to prevent the management and operation and to reproduce the corresponding image through a dedicated player.

An object of the present invention is to provide a video recording apparatus and a video recording method in which a movie file photographed by a vehicle black box is stored in the form of a picture file, The present invention provides a vehicle image processing apparatus and a data processing method using the same that can prevent distortion or manipulation of a black box photographed image by encrypting and encrypting an encrypted image file by adding the encrypted image file.

An image processing apparatus for a vehicle according to one aspect of the present invention includes: a memory; A camera module for acquiring an external image; And a controller for acquiring a plurality of still images through the camera module, storing image information photographed for each exchange image file format (EXIF) of the still image, combining a specific stamp image, and encoding the combined image information to generate image data .

A data processing method for a vehicle image processing apparatus according to another aspect of the present invention is a data processing method for an image processing apparatus for a vehicle that can be mounted on a vehicle and includes a plurality of external still images through a camera module provided in the vehicle image processing apparatus Obtaining; And a step of storing image information photographed for each of the exchange image file format (EXIF) of the still image, combining a specific stamp image, and encoding the image information to generate image data.

The vehicle image processing apparatus and the data processing method using the same according to the present invention have the following effects.

According to the present invention, an event-generated image can be managed in an integrated manner. Encryption of recorded data can prevent illegal circulation of the individual and make it possible to replace the traffic violation reward system.

Further, according to the present invention, unnecessary conflicts can be prevented by using images as means for adopting evidence by preventing manipulation or distortion of images and increasing reliability of stored images.

1 is a view for explaining a configuration of a vehicle image processing apparatus according to an embodiment of the present invention.
2 is a diagram showing a format structure of a JPEG file.
3 is a diagram showing an EXIF file format of a JPEG image.
4 is a flowchart of a data processing method according to the first embodiment of the present invention.
5 is a diagram showing an example of time information stored in an image file photographed according to an embodiment of the present invention.
6 is a diagram showing an example of attribute information for an image file photographed according to an embodiment of the present invention.
7 is a flowchart of a data processing method according to the second embodiment of the present invention.
8 is a diagram illustrating an example of storing an image file according to an embodiment of the present invention.
9 is a diagram illustrating another example of image file storage according to an embodiment of the present invention.
FIG. 10 is a flowchart showing an image reproduction apparatus reproducing an image according to the third embodiment of the present invention.
11 is a flowchart showing an image reproduction apparatus reproducing an image according to the fourth embodiment of the present invention.
12 shows an example in which a stamp image is removed and reproduced as an original image according to an embodiment of the present invention.
13 is a diagram for explaining a process of comparing pixel values for each block in steps S460 and S470.
Fig. 14 shows an example of a vehicle image processing apparatus for implementing the operational flow chart of Fig.
Fig. 15 shows an example of a vehicle image processing apparatus for implementing the operational flow chart of Fig.
Fig. 16 shows an example of an image reproducing apparatus for implementing the operation flow chart of Fig.
FIG. 17 shows an example of an image reproducing apparatus for implementing the operation flow chart of FIG.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

<Figure 1> Black box configuration

1 is a view for explaining a configuration of a vehicle image processing apparatus according to an embodiment of the present invention.

The vehicle image processing apparatus 100 may also be referred to as a vehicle black box apparatus.

1, the vehicle image processing apparatus includes a camera module 101, a microphone 102, a signal processing unit 103, a storage unit 104, a communication unit 105, a power supply unit 106, a control unit 107, And may include an impact detection unit 108, a position information module 109, a display 110, an audio output module 111, an external display 112, an interface 113 and an input unit 120.

The camera module 101 can photograph an image of the front, rear, side, and inside of the vehicle and transmit it to the signal processing unit 103. The photographed image may be stored in the storage unit 104 after being compressed in the signal processing unit 103 or may be stored in the storage unit 104 without compression. The camera module 101 is constituted by one camera according to the configuration of the system so that only the front side is photographed or when the camera module 101 is composed of a plurality of cameras, Can be set.

The microphone 102 may record voice or sound from outside or inside the vehicle and transmit the voice or sound to the signal processing unit 103. The recorded voice or sound may be transmitted to the signal processing unit 103, compressed and stored in the storage unit 104 or may be stored in the storage unit 104 without compression. The recorded voice or sound is related to a sound caused by an external shock or a situation inside / outside the vehicle, and can help to recognize the situation at the time together with the image.

The signal processing unit 103 compresses the image data taken from the camera module 101 to reduce the capacity of the image data. The image data has a form in which each frame is gathered in a plurality of time axes. That is, it can be seen as a photograph taken continuously for a given time. The capacity of such an image is very large if it is not compressed, and it is very inefficient when it is stored in the memory as it is, so the digital converted image must be compressed. For moving picture compression, a method using correlation between frames, spatial correlation, and characteristics of time sensitive to low frequency components is used. Since the original data is lost due to compression, it should be compressed at a rate sufficient to identify the traffic accident situation of the vehicle. One of various video codecs such as H.264, MPEG4, H.263, and H. 265 / HEVC may be used as the compression method of the moving picture, and the image data is compressed in a manner supported by the vehicle image processing apparatus 100.

The signal processing unit 103 can compress the recorded data from the microphone 102. [ The signal processor 103 not only compresses the recorded video and audio data, but also encrypts and restricts access to the data.

The storage unit 104 may store video and audio data in one file or two files in a storage cycle unit by a storage period of the recorded video and audio data. For example, if the storage period is 30 seconds, the video and audio recorded during the first 30 seconds are compressed and stored in the form of a video file, and the video and audio for 30 seconds are compressed and stored repeatedly.

The storage unit 104 may store different data in a storage area according to a recording mode. For example, the data recorded during driving and the data recorded during parking can be divided and stored, and the recorded data and the data recorded by the event can be divided and stored.

The storage unit 104 may be built in the vehicle image processing apparatus 100 or may be detachable through a port provided in the vehicle image processing apparatus 100 or may exist outside the image processing apparatus 100 for a vehicle. When the storage unit 104 is configured inside the vehicle image processing apparatus 100, it may exist in the form of a hard disk drive or a flash memory. When the storage unit 104 is detachable to the image processing apparatus 100 for a vehicle, it may exist in the form of an SD card, a Micro SD card, a USB memory, or the like. If the storage unit 105 is configured outside the vehicle image processing apparatus 100, the storage unit 105 may exist in a storage space in another device or a server via the communication unit 105. [

The communication unit 105 constitutes a connection for allowing the vehicle image processing apparatus 100 to exchange recorded video or audio with a server, another vehicle, or another device. Further, the communication unit 105 allows the vehicle information and peripheral information to be transmitted and received between the server and other vehicles or other devices. The communication unit 105 can support wireless networks such as WIFI, Bluetooth, 3G, LTE, WIMAX, WIGI, and wired networks such as EtherNet and MODEM.

The power supply unit 106 receives power from the external power supply or receives power from the internal battery, and supplies power to the image processing apparatus 100 for driving the vehicle. When the vehicle is in the starting state, the power source of the vehicle is supplied to the image processing apparatus 100 for the vehicle to charge the rechargeable battery, and the power source of the rechargeable battery is supplied to the image processing apparatus 100 for the vehicle.

The control unit 107 typically controls the overall operation of the image processing apparatus 100 for a vehicle. The control unit 107 may include a multimedia module for multimedia playback. The multimedia module may be implemented in the control unit 107 or may be implemented separately from the control unit 107.

The control unit 107 can set the operation mode of the vehicle image processing apparatus 100 based on whether the vehicle is traveling or the signal from the impact sensing unit 108. [ The control unit 107 may perform the video recording function when the vehicle is running or may perform the event recording by the impact event detected by the impact detection unit 108. [ The control unit 107 determines the impact event detected by the impact detection unit 108 or the motion of an object recorded in the camera module 101 when the vehicle is parked and performs the parking recording function so that the vehicle image processing apparatus 100 Can be controlled.

The impact sensing unit 108 generates an event when the impact applied to the vehicle is sensed or when the amount of change in the acceleration exceeds a predetermined level, and transmits the event to the control unit 107. The impact sensing unit 108 may include an acceleration sensor, a geomagnetic sensor, or the like to sense an impact or an acceleration.

The position information module 109 is a module for confirming or obtaining the position of the image processing apparatus 100 for a vehicle. A typical example of the location information module is a GPS (Global Position System) module.

The position information module 109 continuously calculates the current position of the vehicle in real time, and calculates the speed information of the vehicle using the continuously calculated position.

The display unit 110 displays and outputs information processed in the vehicle image processing apparatus 100. [

For example, the display unit 110 can display images and voices recorded by the camera module 101 in real time or later, and can display on the screen so as to facilitate the recording setting in the control unit 107, The user can easily select and set the desired function.

The display unit 110 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display).

In a case where a display unit 110 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') have a mutual layer structure (hereinafter referred to as 'touch screen' It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The sound output module 111 can output audio data received in the communication unit 105 or stored in the storage unit 104. [ The sound output module 111 outputs sound signals related to functions performed in the vehicle image processing apparatus 100.

The sound output module 111 may include a receiver, a speaker, a buzzer, and the like. Also, the sound output module 111 can output sound through the earphone jack. The user can connect the earphone to the earphone jack and hear the sound output.

The external display device 112 may be a light emitting device such as an LED or a light to inform the operation status of the image processing apparatus 100 for a vehicle or to provide light for facilitating operation of the image processing apparatus 100 such as a button or a touch. have.

The interface 113 serves as a path for communication with all the external devices connected to the vehicle image processing apparatus 100. The interface 113 receives data from an external device or receives power from the external device so as to transmit the data to each component in the vehicle image processing apparatus 100 or to transmit data in the vehicle image processing apparatus 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The input unit 120 generates input data for controlling the operation of the vehicle image processing apparatus 100 by the user. The input unit 120 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

&Lt; 2 > Format structure of JPEG file

2 is a diagram showing a format structure of a JPEG file.

In the case of a digital camera, it is possible to store 3 to 10 frames of still images per second as a picture file (JPEG), and reproduce the picture files as a moving picture, so as to be photographed as moving pictures .

Accordingly, instead of storing the video image processing apparatus 100 capable of performing the black box function according to the embodiment of the present invention as a video file, the still image of about 15 to 30 frames per second is stored as a picture file (JPEG) , Manipulation prevention and discrimination by inserting additional information into the EXIF (Exchangeable image file format) format of the APP1 marker of FIG. 2 of the JPEG file, and comparing the before and after picture files to identify whether the operation is finally performed.

In addition, there is an advantage that a better picture quality can be realized in the case of storing a picture file than a video file.

In the JPEG file format, the APP1 marker EXIF data includes GPS information, time information, time information, photographing order (some of 1 / N photographs per second), photographing environment information, A manufacturer ID (maker ID, a production code, etc.), and a User ID (Password set by the user), so that the operation can be prevented primarily.

The EXIF metadata is included in the image file itself, but preserves information even if the file is changed.

&Lt; 3 > The process of storing a JPEG image file

3 is a diagram showing an EXIF file format of a JPEG image.

A process of storing a JPEG image file according to an embodiment of the present invention will be described below.

A file photographed through a camera provided in the vehicle image processing apparatus 100 (black box) is stored as 15 to 30 or more JPEG files per second.

In the case of a JPEG file, separate data such as EXIF as shown in FIG. 3 is also stored internally. In the embodiment of the present invention, information stored in the EXIF as shown in FIG. 3 is used or a cryptographic key is added to make it difficult to operate .

The JPEG format has APPn Maker, which is a maker that contains various application specific data. Of these, APP1 markers with n = 1 contain EXIF data.

The EXIF data contains basic information on the pictures, which includes the model name, date, lens type, and GPS of the device that took the picture. Most of the photographing information is related to the photographing. GPS information such as time, position, and speed, which are generally stored in the EXIF data, time information (file generation time, photographed time, (Information of a few photographs of 1 / N photographs per second), a manufacturer ID (information of a manufacturer ID, a production code, etc.), a user ID (user ID, Password) set by the user.

In addition to EXIF data, this information can also be stored in COM fields, which are makers for using APPn markers or for annotating. The information stored in the EXIF can be used for the purpose of prevention and discrimination of operation, limitation of a dedicated viewer, and the like as follows.

&Lt; Figs. 4, 5, 6 >

4 is a flowchart of a data processing method according to the first embodiment of the present invention. 5 is a diagram showing an example of time information stored in an image file photographed according to an embodiment of the present invention. 6 is a diagram showing an example of attribute information for an image file photographed according to an embodiment of the present invention.

The data processing method according to the first embodiment of the present invention can be implemented in the vehicle image processing apparatus 100 shown in FIG. 1 and FIG. 14 described later. Hereinafter, the data processing method according to the first embodiment of the present invention and the operation of the vehicle image processing apparatus 100 for implementing the same will be described in detail with reference to the necessary drawings.

Referring to FIG. 4, the vehicle image processing apparatus 100 according to the embodiment of the present invention photographs a moving image at N frames per second (S100), and stores image information photographed in EXIF included in each frame (S110) .

In step S110, the image information included in the EXIF may include time information, manufacturer ID, accident site reproducibility information, user ID, and the like.

The time information among the image information included in the EXIF in step S110 will now be described in detail.

In the EXIF file, three identical time information values are stored as shown below.

- DataTime (TagID: 132): The time when the photo file was created in the device

- DataTimeOriginal (TagID: 9003): The time when the subject

- DataTimeDigitized (TagID: 9004): The time when the photographed subject was processed as a digital image

Generally, in order to view or manipulate an image file photographed through a black box or a digital camera, a user moves the photographed image file to a PC and opens the image file. At this time, the DataTime (TagID) 132, DataTimeOriginal ) And DataTimeDigitized (TagID: 9004) are changed.

6, only the modified date is stored as a time value stored in the EXIF as shown in FIG. 5, and the creation date (creation time), which is the remaining date information in FIG. 6, And the access date (access time) are stored with reference to the time the photographed image file was copied or moved to the PC.

In other words, if a user attempts to open an image file photographed in a black box, if the image has not been distorted or manipulated, the modification date contained in the image property information must be at least a few minutes before the creation date and access date, Time and access time should be the same.

If the operation has been performed, the modification date is updated and stored as the time at which the operation is performed. When the image is reproduced, the image reproduction apparatus can notify the user of the operation by comparing the manipulated information with the EXIF time information.

Unmodified image files have visual information under the following conditions, and can confirm whether they are manipulated by comparing them.

- The three field time values of EXIF are the same

- The file creation date of the file system property information is the same as the access date, and the modification date is the same as the EXIF time value.

- File creation and access dates in the file system are slower than the modification date.

The manufacturer ID of the image information included in the EXIF in step S110 will be described in detail as follows.

It is possible to determine whether or not an accident site using the manufacturer ID is available. Among the information stored in the EXIF, in the case of the manufacturer ID, the value inputted by the manufacturer in the production process and the barcode attached to the product have the same value as the specific value for each product. By confirming that the product ID at the scene of the accident and the manufacturer ID of the JPEG file are the same, the image reproducing apparatus can judge that the stored image file is a file photographed at the actual site.

The accident scene reproducibility information of the image information included in the EXIF in step S110 will be described in detail as follows.

Using the GPS position information at the time of shooting, I can grasp the exact position and perform the reproduction experiment under the same conditions as the shooting information (iris state, exposure mode, shutter speed, flash use, etc.) It is possible to determine whether or not the operation is performed.

In step S110, the user ID information among the image information included in the EXIF will be described in detail.

According to the embodiment of the present invention, when the image reproducing apparatus attempts to reproduce an image photographed through the camera of the black box as a moving image, only when the preset User ID information matches the ID of the image reproducing apparatus set in the image reproducing apparatus, In the case of an image which is manipulated or distorted by a third party, reproduction is disabled, or an image of an operation or a distorted image is output through the display unit.

In step S110, various information stored in the EXIF may be used to determine whether or not the operation is performed. The process of determining whether the operation is performed can be confirmed through a transmission confirmation program or a video reproducer.

<Fig. 7> Using stamp image

7 is a flowchart of a data processing method according to the second embodiment of the present invention. 8 is a diagram illustrating an example of storing an image file according to an embodiment of the present invention. 9 is a diagram illustrating another example of image file storage according to an embodiment of the present invention.

The data processing method according to the second embodiment of the present invention can be implemented in the vehicle image processing apparatus 100 shown in FIG. 1 and FIG. 15 described later. Hereinafter, the data processing method according to the first embodiment of the present invention and the operation of the vehicle image processing apparatus 100 for implementing the same will be described in detail with reference to the necessary drawings.

As described above for preventing image distortion or manipulation by using EXIF information, an expert who is well-versed in the EXIF file has the possibility of manipulating even such information. Therefore, in addition to the EXIF information as an embodiment of the present invention, We propose a method to prevent distortion or manipulation by using a standardized stamp image.

A complicated yet standardized stamp image file can be overlapped with a JPEG file, which is an image file captured with one or more images, or N stamps can be repeatedly superimposed every 1 / N seconds, finally storing the stamp image as a superimposed JPEG file. have.

Therefore, when a third party manipulates or distorts the file that is finally stored, the manipulation of the stamp image file must be performed at the same time. However, when the third party operates the stamp image even in the absence of information on the stamp image, the user removes the stamp image in the process of reproducing the distorted or manipulated image by the third party through the image reproduction apparatus, It is possible to discriminate whether or not the operation is performed.

Referring to FIG. 7, the vehicle image processing apparatus 100 according to the embodiment of the present invention may capture moving images in N frames per second (S200) and store image information captured in EXIF included in each frame (S210 ].

In step S210, the image information included in the EXIF may include time information, manufacturer ID, accident site reproducibility information, user ID, and the like.

Then, the vehicle image processing apparatus 100 combines the unique stamp image created by the maker of the vehicle image processing apparatus 100 with the image stored in the step S210 (S220), and encodes the shot image combined with the stamp image (S230).

The process of combining the stamp image with the photographed image in step S220 may be implemented by various methods.

For example, the same image stamp may be combined for each image frame as shown in FIG. 8 as an embodiment for combining the stamp image with the photographed image according to the present invention. You can combine one or more identical stamps every 1 / N second.

Also, for example, as an alternative embodiment of combining a stamp image to a photographed image according to the present invention, N stamps can be repeatedly combined for each image file as shown in FIG. N stamps can be repeatedly combined every 1 / N seconds.

For example, two stamps can be repeated with an image file at intervals of 0.5 seconds. A stamp image corresponding to "Thinkware" and a stamp image corresponding to "iNavi" may be repeated at intervals of 0.5 second to be combined with the original image file.

In Fig. 9, if "Thinkware" is combined, it indicates that the Thinkware stamp image is combined and stored in the original image file in 0.5 second. If "iNavi" is combined, the iNavi stamp image And stored together.

10 is a flowchart of the operation of the image reproducing apparatus 1

FIG. 10 is a flowchart showing an image reproduction apparatus reproducing an image according to the third embodiment of the present invention.

The image reproducing apparatus according to the third embodiment of the present invention may be a dedicated viewer made by a manufacturer who manufactures the vehicle image processing apparatus 100 (black box) according to the embodiments of the present invention. The image reproducing apparatus according to the third embodiment of the present invention may have the configuration shown in FIG. 16 to be described later.

After loading the image file, the image reproducing apparatus according to the third embodiment of the present invention analyzes the information (time information, manufacturer ID, accident site reproducibility information, user ID, etc.) included in the EXIF [S300] .

The image reproducing apparatus determines whether the time values (DataTime, DataTimeOriginal, DataTimeDigitized) of the three fields indicating the time information of EXIF are all the same (S320).

If the time values of the three fields are not all the same, the image reproducing apparatus determines that the loaded image is distorted or manipulated, and displays the image to be reproduced through the display unit as a distorted or manipulated image (S370).

At this time, in step S370, the image reproducing apparatus notifies the user that the image to be reproduced is a distorted or manipulated image by not displaying the image, displaying only the black screen, or outputting the display of distorted or manipulated image to the display unit .

 On the other hand, if the time values of the three fields are all the same in step S320, the image reproducing apparatus primarily determines that the image is not manipulated or distorted, and determines whether the image is not manipulated or distorted do.

The image reproducing apparatus checks the attribute information of the image to determine whether the creation date of the image file is the same as the access date, and performs step 370 if it is not the same.

If the created date and the access date are the same in step S330, the image reproducing apparatus may determine whether the modified date and the EXIF time value are identical to judge whether the image is not manipulated or distorted (S340).

If the creation date of the image file is the same as the access date in step S340, the image playback apparatus may determine whether the modification date, which is the attribute information of the image file, is slower than the created date and the accessed date (S350).

If it is determined in step 350 that the modification date is earlier than the creation date and the access date, the image reproduction apparatus determines that the image to be reproduced is not distorted or manipulated, and the loaded image is reproduced and provided to the user through the display unit .

11 is a flowchart of the operation of the image reproducing apparatus 2

11 is a flowchart showing an image reproduction apparatus reproducing an image according to the fourth embodiment of the present invention.

The image reproducing apparatus according to the fourth embodiment of the present invention may be a dedicated viewer made by a manufacturer who manufactures the vehicle image processing apparatus 100 (black box) according to the embodiments of the present invention. The image reproducing apparatus according to the fourth embodiment of the present invention may have the configuration shown in FIG. 17 described later.

The image playback apparatus according to the fourth embodiment of the present invention loads an Nth image file (S400), and receives authentication information such as a user ID and a manufacturer ID from the user (S410).

Here, the manufacturer ID is an ID that is known only to the maker of the above-described vehicle image processing apparatus 100 (black box), and is used for determining whether the stored image is distorted or manipulated by a third party.

The image reproducing apparatus determines whether the authentication information inputted in step S410 is identical to the previously stored authentication information [S420]. If it is determined that the authentication information matches, the image reproducing apparatus determines that the image loaded in step S400 is not distorted or manipulated, (S430).

Hereinafter, the process of removing the stamp image (S430) will be described in more detail.

The stamp image is a combination of images that are known only to the manufacturer and overlapped with the image to be reproduced, and can be easily removed through an image reproducing device such as a dedicated viewer made by a manufacturer.

Only when at least one of the user ID and the manufacturer ID stored in the EXIF file of the image file to be reproduced matches with the authentication information input in step S410 is determined to be distorted or not operated, it can be removed.

12 shows an example in which a stamp image is removed and reproduced as an original image according to an embodiment of the present invention.

Referring to FIG. 12, an image file to be reproduced can be restored by removing a stamp image file from a stored image file.

The image reproducing apparatus stores pixel values of each block of the loaded Nth image file (S440), and determines whether the loaded Nth image file is the last image file (S450).

If it is determined in step S450 that the image file is not the last image file, the image reproducing apparatus prepares to load the (N + 1) th image file [S451].

If it is determined in step S450 that the image file is the last image file, the image reproducing apparatus compares the pixel values of the N-1th, Nth, and N + 1th image blocks (S450) (S470). &Lt; / RTI &gt;

13 is a diagram for explaining a process of comparing pixel values for each block in steps S460 and S470.

The process of comparing the pixel values of each block in steps S460 and S470 will be described in detail with reference to FIG.

First, the image reproducing apparatus compares the pixel values of each block in the N-1th image file, the Nth image file, and the (N + 1) th image file as shown in FIG. 13 (S460).

Referring to FIG. 13, for example, each photograph is arbitrarily divided into a total of six predetermined areas, and pixel values of the before and after pictures of each divided area are compared to determine whether the image is manipulated. The pixel value comparison calculation is a pixel comparison in the same area and an inter-region pixel comparison.

Generally, since the file is photographed at 1 / N second intervals, the movement / movement speed of an object or a person in the same area will be almost the same level in the before and after files. Therefore, it is possible to judge whether or not the operation is performed by comparing and calculating the amount of change of the pixel before and after in each area. For example, as shown in FIG. 13, one image file is divided into six regions.

The image reproducing apparatus is characterized in that, in each of the N-1th image, the Nth image and the (N + 1) th image, the 1-1 region, the 2-1 region, -1 region and the 2-1 region of the Nth image and the variation amounts of the pixel values of the 2-1 region of the Nth image and the 3-1 region of the N + 1th image are compared.

If the operation is performed in the 1-1 area, there is a difference between the pixel variation comparing the 1-1 area and the 2-1 area and the pixel variation comparing the 2-1 area and the 3-1 area do. This is because it is difficult for a sharp pixel change to occur between 1 / N second.

It is also possible to judge whether or not the image is manipulated by comparing pixels between other regions. The pixel change amount comparing the 1-1 region and the 2-1 region should show the same pixel change amount in the pixel change amount comparing the 1-2 region and the 2-2 region which are the other regions. This is because the pixel change can not occur suddenly in a certain region in the same time.

If it is determined in step S470 that the difference of each block pixel value does not exceed the threshold value, the image reproducing apparatus determines that there is no distortion or manipulation on the image and reproduces the image (S480).

On the other hand, if an operation suspicious area occurs during the pixel comparison in step S470, the image reproducing apparatus divides the area into a predetermined area in the same manner and performs fine pixel comparison to finally determine whether the image is manipulated or distorted.

As a result of the determination in step S470, if the image has been distorted or manipulated, the image reproducing apparatus does not reproduce the image, displays only the black screen, or outputs the display of the distorted or manipulated image to the display unit [S490] The user can be informed that the image to be distorted is a distorted or manipulated image.

As described above, the image reproducing apparatus normally reproduces as a moving image if the operation is not performed through the pixel comparison. However, if only one of the N files is manipulated, playback is impossible and the moment is blackened so that it can be easily confirmed that the manipulation has occurred.

14 and 15,

Fig. 14 shows an example of a vehicle image processing apparatus for implementing the operational flow chart of Fig. Fig. 15 shows an example of a vehicle image processing apparatus for implementing the operational flow chart of Fig.

The vehicle image processing apparatus 1300 shown in FIG. 14 may include a storage unit 1305, a camera 1310, a control unit 1315, an encoding unit 1320, and an input / output port 1325.

The vehicle image processing apparatus 1400 shown in Fig. 15 carries out the operation flow chart of Fig. The image storage device 1400 may include a storage unit 1405, a camera 1410, a control unit 1415, an encoding unit 1420, a stamp image playback unit 1425, and an input / output port 1430.

The vehicle image processing apparatuses 1300 and 1400 shown in Figs. 14 and 15 may include at least one of the constituent elements of the vehicle image processing apparatus 100 shown in Fig.

16 and 17,

Fig. 16 shows an example of an image reproducing apparatus for implementing the operation flow chart of Fig. FIG. 17 shows an example of an image reproducing apparatus for implementing the operation flow chart of FIG.

16 may include a storage unit 1505, a display unit 1510, a control unit 1515, a decoding unit 1520, and an input / output port 1525.

17 includes a storage unit 1605, a display unit 1610, a control unit 1615, a decoding unit 1620, a stamp image removal unit 1625, and an input / output port 1630 .

The above-described data processing method and image reproducing method according to the present invention can be provided by being recorded in a computer-readable recording medium as a program to be executed by a computer.

The data processing method and the image reproducing method according to the present invention can be executed through software. When executed in software, the constituent means of the present invention are code segments that perform the necessary tasks. The program or code segments may be stored in a processor readable medium or transmitted by a computer data signal coupled with a carrier wave in a transmission medium or a communication network.

A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording device include a ROM, a RAM, a CD-ROM, a DVD 占 ROM, a DVD-RAM, a magnetic tape, a floppy disk, a hard disk, The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings. In addition, the embodiments described in this document can be applied to not only the present invention, but also all or some of the embodiments may be selectively combined so that various modifications can be made.

100, 1300, 1400, 1500, 1600: image processing apparatus for vehicles
101: camera module 104:
105: communication unit 109: position information module

Claims (8)

A vehicle image processing apparatus mountable on a vehicle,
Memory;
A camera module for acquiring an external image; And
A controller for acquiring a plurality of still images through the camera module, storing image information photographed for each exchange image file format (EXIF) of the still image, combining a specific stamp image, and encoding the combined image information to generate image data
The image processing apparatus comprising: The image processing method according to claim 1,
Wherein the vehicle image processing apparatus is unique information created by the manufacturer of the vehicle image processing apparatus. The image processing method according to claim 1,
Wherein the image data is used for judging whether the image data is manipulated or damaged when the image data is reproduced. 2. The method of claim 1, wherein the N &lt; th &gt;
Wherein the plurality of regions are divided into a plurality of regions, and the corresponding regions of the (N-1) th still image and the (N + 1) th still image are compared with each other to determine whether the image is manipulated or damaged. A data processing method of a vehicle image processing apparatus mountable on a vehicle,
Acquiring a plurality of external still images through a camera module included in the vehicle image processing apparatus; And
Storing image information photographed for each exchange image file format (EXIF) of the still image, combining a specific stamp image, and encoding the image data to generate image data
And the data processing method of the vehicle image processing apparatus. 6. The image processing method according to claim 5,
Wherein said vehicle image processing apparatus is unique information created by a manufacturer of said vehicle image processing apparatus. 6. The method of claim 5,
Wherein the image data is used for judging whether the image data is manipulated or damaged when the image data is reproduced. 6. The method of claim 5, wherein the Nth still image among the plurality of still images comprises:
Wherein the plurality of regions are divided into a plurality of regions, and the corresponding regions of the (N-1) th still image and the (N + 1) th still image are compared to determine whether the image is manipulated or damaged.

Images