KR20190141625A - Image-processing Apparatus for Car and Method of Processing Data Using The Same - Google Patents

Abstract

The present invention relates to an image processing device for a vehicle and a data processing method using the same. The present invention provides the image processing device for a vehicle and the data processing method using the same. Different encryption methods and access authorities are applied for each channel and each data type with respect to a recorded image of a vehicle black box. The present invention comprises a memory, a camera module, a microphone, and a control part.

Description

Vehicle image processing device and data processing method using the same {Image-processing Apparatus for Car and Method of Processing Data Using The Same}

The present invention relates to an image processing apparatus for a vehicle, and more particularly, to an image processing apparatus for a vehicle and a data processing method using the same for encrypting a recorded image of a vehicle black box in various ways.

At present, many automobile owners are easy to identify the causes of traffic accidents, and the proportion of vehicle black boxes is gradually increasing in order to minimize disputes between parties due to traffic accidents. Mandatory installation of black boxes is a trend.

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

As such, the situation at the time of the accident (image, vehicle speed, collision angle, post-processing process, etc.) is saved as a video to minimize disputes between accident parties and is also used as legal data. It is used as an important data for identifying the problem. In addition, the crime scene also plays a role as CCTV, increasing the demand for black boxes. However, invasion of privacy through indiscriminate video leakage and damage caused by video manipulation are also occurring. In particular, it is necessary to protect personal information on video recorded in public transportation. Data recorded on public transportation such as taxis, buses, subways, etc. can be easily identified and disseminated by the driver, and therefore, personal portrait rights and privacy are likely to be violated.

An object of the present invention is to provide a vehicle image processing apparatus and a data processing method using the same encryption method and access authority for each channel and data type for the recorded image of the vehicle black box.

Another object of the present invention, the vehicle image processing device that can protect the privacy by ensuring the confidentiality of the image photographed in the vehicle black box, and encrypt and store the image and audio for use as evidence in case of accident and data processing using the same To provide a way.

In-vehicle image processing apparatus according to an aspect of the present invention, the vehicle image processing apparatus which can be mounted on a vehicle, comprising: a memory; A camera module for acquiring an external image; A microphone for acquiring an external voice; And generating the black box data by acquiring the external image and the external voice, and encrypting both the external image and the external voice, the first operation of encrypting only the external image and the second operation of encrypting only the external voice. And a controller configured to selectively perform any one of the third operations to generate the black box data.

According to another aspect of the present invention, there is provided a data processing method of a vehicular image processing apparatus, the method comprising: acquiring an external image through a camera module included in the vehicular image processing apparatus; ; Acquiring an external sound through a microphone provided in the vehicle image processing apparatus; And generating black box data including the external image and the external voice, a first operation of encrypting only the external image, a second operation of encrypting only the external voice, and encrypting both the external image and the external voice. And selectively performing any one of the third operations to generate the black box data.

According to the vehicle image processing apparatus and the data processing method using the same according to the present invention has the following advantages.

According to the present invention, privacy can be protected by limited reading through partial or full encryption of the video and audio during recording of the vehicle black box, and the integrity of the video can be ensured in case of an accident, thereby increasing the effect as evidence.

1 is a view for explaining the configuration of a vehicle image processing apparatus according to an embodiment of the present invention.
2 is a diagram illustrating various encryption schemes for data according to an embodiment of the present invention.
3 is a flowchart of a data processing method according to a first embodiment of the present invention.
4 is a flowchart of a data processing method according to a second embodiment of the present invention.

The above 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, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like numbers refer to like elements throughout. In addition, when it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

<Figure 1> Black Box Configuration

1 is a view for explaining the 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.

Referring to FIG. 1, the vehicle image processing apparatus may include a camera module 101, a microphone 102, a signal processor 103, a storage 104, a communication unit 105, a power supply 106, a controller 107, The shock detector 108, the location information module 109, the display 110, the sound output module 111, the external display device 112, the interface 113, and the input unit 120 may be included.

The camera module 101 may photograph an image of the front, rear, side, and inside of the vehicle and transmit the captured image to the signal processor 103. The captured image may be stored in the storage unit 104 after being compressed by the signal processing unit 103 or directly in the storage unit 104 without a compression process. Camera module 101 is composed of one camera according to the configuration of the system to shoot only the front, or when composed of a plurality of cameras recording position of the camera in various ways depending on the purpose of use, such as the front, rear, side, inside the vehicle Can be set.

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

The signal processor 103 compresses to reduce the capacity of the image data photographed from the camera module 101. Image data has a form in which each frame is gathered in a time axis. That is, it can be regarded as a photograph taken continuously for a given time. Since the capacity of such an image is very large without compression, and stored in the memory as it is, it is very inefficient, it is necessary to compress the digitally converted image. In video compression, a method using frame correlation, spatial correlation, and visual characteristics sensitive to low frequency components is used. Since the original data is lost due to compression, it must be compressed at an appropriate rate to identify the traffic accident of the vehicle. As a video compression method, one of various video codecs such as H.264, MPEG4, H.263, and H.265 / HEVC may be used, and image data is compressed in a manner supported by the vehicle image processing apparatus 100.

In addition, the signal processor 103 may compress the data recorded from the microphone 102. The signal processor 103 may not only compress the recorded video and audio data, but also restrict the access of the data by encrypting.

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

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

The storage unit 104 may be configured inside the vehicle image processing apparatus 100, or may be detachably configured through a port provided in the vehicle image processing apparatus 100, or may exist outside the vehicle image processing apparatus 100. When the storage unit 104 is configured inside the vehicle image processing apparatus 100, the storage unit 104 may exist in the form of a hard disk drive or a flash memory. When the storage unit 104 is detachably configured in the vehicle image processing apparatus 100, the storage unit 104 may exist in the form of an SD card, a Micro SD card, or a USB memory. When 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 through the communication unit 105.

The communication unit 105 configures a connection in which the vehicle image processing apparatus 100 may exchange recorded video or audio with a server or another vehicle or other device. In addition, the communication unit 105 may transmit and receive vehicle information or surrounding information between a server, another vehicle, or another device. The communication unit 105 may support a wireless network such as WIFI, Bluetooth, 3G, LTE, WIMAX, WIGI, or a wired network such as EtherNet or MODEM.

The power supply unit 106 receives power from an external power source or receives power from its own battery to supply power to drive the vehicle image processing apparatus 100. When the vehicle is in a startup state, power of the vehicle is supplied to the vehicle image processing apparatus 100 to charge the rechargeable battery, and when the vehicle is turned off, power of the rechargeable battery is supplied to the vehicle image processing apparatus 100.

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

The controller 107 may set an operation mode of the vehicle image processing apparatus 100 based on whether the vehicle is driven or the signal of the shock detector 108. The controller 107 may perform a recording function at all times while the vehicle is driving or perform event recording by a shock event detected by the shock detection unit 108. When the vehicle is parked, the control unit 107 determines the impact event detected by the shock detection unit 108 or the movement of an object recorded in the camera module 101 to perform the parking recording function. Can be controlled.

The shock detector 108 detects a shock applied to the vehicle or generates an event and transmits it to the controller 107 when the amount of change in the acceleration is greater than or equal to a predetermined level. The shock detector 108 may include an acceleration sensor, a geomagnetic field sensor, and the like to detect shock or acceleration.

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

The location information module 109 may continuously calculate the current location of the vehicle in real time and calculate speed information of the vehicle using the location information module 109.

The display 110 displays and outputs information processed by the vehicle image processing apparatus 100.

For example, the display unit 110 may check the video and audio recorded by the camera module 101 in real time or later, and may display on the screen to facilitate recording setting in the controller 107. Input is available so the user can easily select and set the desired function.

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

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

The sound output module 111 may output audio data received from the communication unit 105 or stored in the storage unit 104. The sound output module 111 outputs a sound signal related to a function performed by the vehicle image processing apparatus 100.

The sound output module 111 may include a receiver, a speaker, a buzzer, and the like. In addition, the sound output module 111 may output sound through the earphone jack. The user can hear the sound output by connecting the earphone to the earphone jack.

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

The interface 113 serves as a path to all external devices connected to the vehicle image processing apparatus 100. The interface 113 receives data or power from an external device and transmits the data to each component inside the vehicle image processing apparatus 100 or transmits data inside the vehicle image processing apparatus 100 to an external device. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the 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 a user. The input unit 120 may include a key pad dome switch, a touch pad (constant voltage / capacitance), a jog wheel, a jog switch, and the like.

Fig. 2 Encryption of recorded video

Encrypted and stored in-vehicle voices or videos can only be verified by authorized organizations or individuals.

2 is a diagram illustrating various encryption schemes for data according to an embodiment of the present invention.

When the vehicle image processing apparatus 100 (black box) operates in the always-recording mode, the vehicle continuously detects a voice input through a microphone while storing the recorded image without encryption.

When voice is detected during recording of the vehicle image processing apparatus 100, the data may be encrypted and stored in the corresponding section.

For example, set the data storage interval to 5 minutes in Normal Recording mode. If voice is not input in section A, which is the first 5 minutes, the recorded video is stored without encryption. If voice input is detected 3 minutes after the start point in section B, which is 5 minutes, the recorded image is encrypted by section B. .

When the vehicle image processing apparatus 100 has input of various channels such as a front camera, a rear camera, a side camera, and an internal camera, the external video and audio are stored without encryption, and the internal video and audio are encrypted. And only the user who has the corresponding encryption key can play the encrypted video and audio.

In addition, when the vehicle image processing apparatus 100 has input of various channels such as a front camera, a rear camera, a side camera, and an internal camera, the video of all channels is stored without encryption and the audio of all channels is encrypted. And the user can play the encrypted video and audio only for the voice.

In addition, the recorded image of the vehicle image processing apparatus 100 can be encrypted and stored so that it can be played by an authorized user, and the voice can be encrypted and stored so that it can be played only when the encryption key is provided by a predetermined institution. have.

A specific frequency band may also be encrypted and stored for the voice input to the vehicle image processing apparatus 100, and the remaining voice data may be stored or not stored without encryption.

In addition, the voice input to the vehicle image processing apparatus 100 may be set to encrypt and store only a voice including a specific word through voice recognition.

3 is a flowchart of a data processing method according to a first embodiment of the present invention. The data processing method according to the first embodiment of the present invention may be implemented in the vehicle image processing apparatus 100 described with reference to FIG. 1. Hereinafter, a data processing method and an operation of a vehicle image processing apparatus 100 for implementing the same according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 3, the controller 107 may acquire video and audio data [S100], and determine whether to receive encryption or not of voice data from a user [S110].

When the user inputs the encryption progress signal of the voice data, the controller 107 encrypts the voice data [S120] and generates and stores the video event data by combining and encoding the encrypted voice data and the video data. [S130].

If the user does not input the encryption progress signal of the voice data, the controller 107 generates and stores general event data by combining and encoding the unencrypted general voice data and the image data [S140].

4 is a flowchart of a data processing method according to a second embodiment of the present invention. The data processing method according to the second embodiment of the present invention may be implemented in the vehicle image processing apparatus 100 described with reference to FIG. 1. Hereinafter, a data processing method and an operation of a vehicle image processing apparatus 100 for implementing the same according to a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 4, the controller 107 may acquire video and audio data [S200], and receive a selection signal regarding whether to proceed with encryption of the audio data [S210].

The controller 107 may determine whether the selection signal input in step S210 corresponds to an encryption progress signal of voice data [S220].

When the user does not input the encryption progress signal of the voice data, the controller 107 generates and stores general event data by combining and encoding the unencrypted general voice data and the image data [S290].

When the user inputs the encryption progress signal of the voice data, the controller 107 may receive a selection signal for the data to be encrypted from the image data and the voice data from the user [S230].

The controller 107 determines whether the selection signal received in step S230 is a signal for encrypting only voice data [S240], and encrypts only voice data [S250] if the signal only encrypts voice data [S250]. The video event data is generated and stored by combining and encoding the data and the video data [S260].

If the selection signal received in step S230 is a signal for encrypting both the image data and the audio data, the controller 107 encrypts both the image data and the audio data [S270], and the encrypted voice data and the encrypted image. By combining and encoding the data, the encrypted event data is generated and stored [S280].

Hereinafter, a method of determining an encryption level by dividing the information protection level according to the level of personal information protection will be described in detail.

Black box (corresponding to the vehicle image processing device 100) can be stored and stored in a different encryption level for the recorded video and audio according to the installation and use location, and can be viewed only by persons or institutions with the corresponding authority. have.

Table 1 shows an example of estimating the degree of information security based on the degree of privacy protection of the data being stored.

Black box use classification Data type Related Items by Black Box Type Encryption class Publicity division Personal vehicle installation

External image data 1 channel forward video
2 channel front / rear video
3-channel forward / rear video
4-channel forward / rear / side view No encryption Private Internal image data 2 channel / 3 channel internal video Grade 1 Private Voice data Black box common Grade 2 Private Transit vehicle installation

External image data 1 channel forward video
2 channel front / rear video
3-channel forward / rear video
4-channel forward / rear / side view No encryption Public Internal image data 2 channel / 3 channel internal video Grade 3 Public Voice data Black box common Grade 4 Public

The encryption level is classified as the lowest level of information protection, and the higher the level, the higher the confidentiality.

Depending on the installation and use of the black box, it can be classified into private use and public transport use, and the public separator is used to distinguish it.

If the publicity separator is Public, then the weight can be applied to give the higher level by adding 2 to the base encryption level.

If it is determined that there is no need to protect information on external image data, encryption may not be applied regardless of whether it is used for personal or public transportation.

The encryption level for each recording channel can be determined through the use of the black box and the installation location for each channel.

On the other hand, if the authentication level is determined according to the level that can handle the personal information when you want to view the encrypted data, the encryption level that can be viewed at each level according to the handling policy is determined.

Referring to Table 2, there can be three levels of authentication levels: Master, Public, and Private, where Master is the highest level, then Public, and finally the Private level is the lowest level.

Certification level Encryptable
ranking Viewable
Encryption class Key required for reading Authorization target Master none 1, 2, 3, 4 Master key required Legal force Public 1, 2 none Master key required Transportation company Private 3, 4 3, 4 Private key required individual

Private keys are given only to individuals, and video or audio encrypted by the keys cannot be viewed by others.

In order to have legal effect on the video or audio data encrypted with the private key, it must be a video decrypted through the master key by requesting the authority to which the master key is assigned.

Only the encryption is possible with the public key, and the reading is possible only through the relevant organization to which the master key is assigned.

In the case of the master key, data encrypted with the public and private keys can be viewed, but not used for encryption.

When the data encrypted with the public key and the private key is decrypted with the master key, a series of watermark information such as "authentication required" may be recorded.

Table 3 is a diagram illustrating the methods and types that can be encrypted when storing data in a black box.

Encryption range Classification by encrypted data Storage condition Full encryption

Full data (video + audio) Full video only Full voice only Partial encryption
Partial video only Partial voice only Encrypt only voice in specific frequency band
Encrypt only voices with specific words through voice recognition No encryption

In a method of storing data by encrypting the data, the data may be partially encrypted only at a specific time point in order to reduce the capacity of the data stored in the black box.

The algorithm used to encrypt may be any of a variety of commonly known algorithms.

The data processing method according to the present invention described above may be provided by recording on a computer-readable recording medium as a program for executing on a computer.

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

Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording devices include ROM, RAM, CD-ROM, DVD ± ROM, DVD-RAM, magnetic tape, floppy disks, hard disks, optical data storage devices, and the like. The computer readable recording medium can also be distributed over network coupled computer devices so that the computer readable code is stored and executed in a distributed fashion.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited by the drawings. In addition, the embodiments described in this document may not be limitedly applied, but may be configured by selectively combining all or part of the embodiments so that various modifications may be made.

100: vehicle image processing apparatus 101: camera module
104: storage unit 105: communication unit
109: location information module

Claims (8)

In a vehicle image processing apparatus that can be mounted on a vehicle,
Memory;
A camera module for acquiring an external image;
A microphone for acquiring an external voice; And
When generating the black box data by acquiring the external image and the external voice, a first operation of encrypting only the external image, a second operation of encrypting only the external voice, and a method of encrypting both the external image and the external voice A control unit for generating the black box data by selectively performing any one of three operations
Vehicle image processing apparatus comprising. The method of claim 1, wherein the control unit,
And performing any one of the first to third operations based on the external image and the attribute of the external audio. The method of claim 2, wherein the control unit,
And when the voice regarding the inside of the vehicle is input, the inside voice of the vehicle is always encrypted. The method of claim 1,
The camera module includes a plurality of cameras,
The controller may determine whether to encrypt an image input through each of the plurality of cameras based on a direction of each of the plurality of cameras. In the data processing method of a vehicle image processing apparatus that can be mounted on a vehicle,
Acquiring an external image through a camera module provided in the vehicle image processing apparatus;
Acquiring an external sound through a microphone provided in the vehicle image processing apparatus; And
When generating black box data including the external image and the external voice, a first operation of encrypting only the external image, a second operation of encrypting only the external voice, and a method of encrypting both the external image and the external voice Selectively performing any one of operations to generate the black box data.
Data processing method of a vehicle image processing apparatus comprising. The method of claim 5, wherein the generating of the black box data comprises:
And performing any one of the first to third operations based on the external image and the attributes of the external audio. The method of claim 6, wherein the generating of the black box data comprises:
And in-vehicle audio is always encrypted when a voice relating to the inside of the vehicle is input. The method of claim 5,
The camera module includes a plurality of cameras,
The generating of the black box data may include determining whether to encrypt an image input through each of the plurality of cameras based on a direction of each of the plurality of cameras.

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