KR101696647B1 - Data processing method of vehicle image recording apparatus having a motion detection. - Google Patents

Data processing method of vehicle image recording apparatus having a motion detection. Download PDF

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Publication number
KR101696647B1
KR101696647B1 KR1020150054372A KR20150054372A KR101696647B1 KR 101696647 B1 KR101696647 B1 KR 101696647B1 KR 1020150054372 A KR1020150054372 A KR 1020150054372A KR 20150054372 A KR20150054372 A KR 20150054372A KR 101696647 B1 KR101696647 B1 KR 101696647B1
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South Korea
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image data
motion
motion image
vehicle
recording apparatus
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KR1020150054372A
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Korean (ko)
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KR20160123775A (en
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정우연
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(주)이에스브이
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D41/00—Fittings for identifying vehicles in case of collision; Fittings for marking or recording collision areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D9/00—Recording measured values
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Television Signal Processing For Recording (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The present invention relates to an image recording apparatus for a vehicle, which is referred to as a 'vehicle black box', and particularly relates to a method of processing image data in a vehicle image recording apparatus having a motion recognition function A motion image data storing step of storing image data into an event image by dividing stored image data through a motion recognition function; A motion image data extraction step of extracting temporally continuous motion image data stored in the motion image data storage step; A motion image data comparison step of comparing the motion image data extracted in the motion image data extraction step; And stopping motion image data storage according to the motion recognition function when the same motion image data exists in the motion image data comparison step. According to an embodiment of the present invention, unnecessary motion image data is stored In addition, it is possible to solve the problem that the capacity of the mobile storage device can be easily exceeded due to the storage of the motion image data and to solve the energy use problem due to the storage of the image data, There is an effect that the driveable time of the image storage device can be relatively increased.

Description

[0001] The present invention relates to a data processing method for a vehicle image recording apparatus having a motion recognition function.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording apparatus for a vehicle, which is called a 'vehicle black box', and more particularly to a method for processing image data in a vehicle image recording apparatus having a motion recognition function.

The video recording apparatus for a vehicle according to the present invention includes a camera module for acquiring an image, a processor module for processing the acquired image, a removable storage device for storing image data, and a display unit for outputting the image data. The moving image or the moving image of the vehicle is recorded and stored in a removable storage device such as an SD card.

Accordingly, when an event such as a vehicle accident occurs, the user can check the image data stored in the mobile storage device and grasp the event situation.

In the vehicle image recording apparatus, the image data photographed through the camera module is stored in the removable storage device, and the user confirms the image data through the display unit of the vehicle image recording apparatus, The data is moved and confirmed through the viewer program.

On the other hand, the vehicle image recording apparatus operates in a traveling mode and a parking mode. In the traveling mode, image data is stored as an event image when an impact occurs in the vehicle (impact detection). In a parking mode, The image data is stored as an event image when motion is detected (motion detection) from the front or rear of the camera.

As shown in the figure for explaining the motion detection function of the vehicle image recording apparatus, the motion detection is a function of detecting motion around the vehicle in the vehicle image recording apparatus and storing the motion image as an event image, (F_n, F_n + 1) are compared with each other, and when the contrast value changes, it is determined that an object has appeared and the image data (event image) for a predetermined time (60 seconds) is stored in the event image.

However, in the case of such a motion sensing function, the following problems arise when comparing contrast changes of frames.

As shown in (a) of FIG. 2 showing a vehicle installation example of the vehicle image recording apparatus, the vehicle image recording apparatus 1 is installed in the direction from the inside of the vehicle toward the front glass or rear glass, (1) is provided with a display LED (2) for displaying the operation state of the video image recording apparatus (1) at the front.

The display LED 2 is divided into a color and a blinking mode so that the operation state of the video recording apparatus 1 can be intuitively confirmed. Or an operation error state.

On the other hand, when there is no foreign object on the windshield or rear glass of the vehicle, there is no problem in motion detection. However, when snow accumulates on the windshield or the rear glass or rainwater flows, There is a problem of storing video data.

That is, the blinking light of the display LED 2 due to the foreign matter such as snow or rainwater accumulated in the glass is reflected, and the contrast change occurs between the frames, which leads to the storage of the image data of the motion detection so that unnecessary images are continuously stored A problem arises.

This makes it possible to easily exceed the capacity of the portable storage device of the vehicle image storage device 10 and the driving time of the vehicle image storage device 10 using the battery of the vehicle as a power source due to the energy consumption due to image data storage Causing the problem to be reduced.

[0002] An image recording apparatus and method for a vehicle has been disclosed in a prior art application No. 10-2012-0137638.

The present invention relates to a vehicle image recording apparatus and method, and more particularly, to a vehicle image recording apparatus and method capable of storing image data for a long time by processing and storing image data of a video image taken around a vehicle as a captured image group A video data acquisition unit for acquiring image data by capturing an image of a periphery of the vehicle; and an event detection unit for detecting a change in the environment of the vehicle, Wherein the image data processing unit processes the image data processed in the mode selected by the user or the event detected by the event detection unit into a group of captured images, And stores the processed image data input from the processing section And a storage unit.

The present invention has been developed to solve the problem caused by the display LED at the time of motion detection of the conventional video recording apparatus for a vehicle, and the video data stored through the video recording apparatus for a vehicle is compared to reproduce the same video data repeatedly And does not store image data according to motion detection any more.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

According to an embodiment of the present invention, there is provided a method of improving data processing in an image recording apparatus for a vehicle having a motion recognition function, including: a camera module for acquiring an image; A processor module for processing the acquired image; A display unit for outputting the image acquired by the camera module and the image data stored in the portable storage device; A portable storage device for storing images acquired by the camera module; A data processing method for a vehicle image recording apparatus having a motion recognition function in a driving mode and a parking mode and in a parking mode, the method comprising the steps of: A motion image data storage step of storing the image data into an event image by dividing the stored image data; A motion image data extraction step of extracting temporally continuous motion image data stored in the motion image data storage step; A motion image data comparison step of comparing the motion image data extracted in the motion image data extraction step; And stopping the motion image data storage according to the motion recognition function when the same motion image data exists in the motion image data comparison step.

According to another aspect of the present invention, there is provided a method of extracting a motion image data from a plurality of motion image data stored for a predetermined period of time.

Further, the image data comparison step according to the present invention is characterized in that the contrast of frames of the same position (second) in time is compared in the plurality of motion image data.

According to the present invention, there is provided a moving image storage device of a vehicle image recording apparatus, comprising: means for storing motion image data; It is possible to prevent the unnecessary motion image data from being stored by stopping the storage of the data.

Further, there is an effect that the problem that the capacity of the mobile storage device can be easily exceeded due to the storage of the motion image data can be solved.

Further, there is an effect that the driveable time of the vehicle image storage device using the battery of the vehicle as a power source can be relatively increased by solving the problem of energy use due to the storage of the image data.

In addition, the present invention is effective in achieving the object of the present invention, in which an event image is stored and a predetermined image or evidence is obtained through a stored image.

Other advantages of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a view for explaining a motion detection function of a video recording apparatus for a vehicle,
2 is a view showing a vehicle installation example of a video recording apparatus for a vehicle,
3 is a diagram showing a configuration of a video recording apparatus for a vehicle having a motion recognition function according to the present invention,
4 is a diagram showing a procedure of a data processing improvement method for a vehicle image recording apparatus having a motion recognition function according to the present invention,
FIG. 5 is a diagram for explaining a motion image data extraction step according to a data processing improving method of a video recording apparatus for a vehicle having the motion recognition function of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It should also be understood that the position or arrangement of individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

First, an image recording apparatus for a vehicle to which a data processing improving method of a video recording apparatus for a vehicle according to the present invention is applied will be described. FIG. 3 shows a configuration of a video recording apparatus for a vehicle having a motion recognition function according to the present invention Similarly, the vehicle image recording apparatus 1 includes a display LED 2, a camera module 10, a processor module 20, a display unit 30, a removable storage device 40, and a power source unit 50 And may further include a microphone 60 for changing an external sound to an electric signal, and may further include sound output means such as a speaker 70 for outputting sound data.

The camera module 10 is an assembled part that collects all the parts necessary for performing a function of a camera for capturing an image, and includes a lens, a sensor, and the like as a main component, such as a camera imaging element ccd, cmos, and nmos.

The camera module 10 corresponds to means provided for capturing an image in a conventional vehicle image recording apparatus called a black box.

The processor module 20 has a memory for storing firmware for operation as data operation processing means for overall control and image processing of the video recording apparatus 1 for a vehicle, And processes data for overall control of the video recording apparatus 1 for a vehicle.

The processor module 20 corresponds to a means for processing data such as image data, including a processor for processing data in an ordinary vehicle image recording apparatus called a black box.

The display unit 30 is a means for outputting a video image being reproduced through the camera module 10 or an image reproduced from the image data stored in the removable storage device 40 as a normal liquid crystal display ), And a touch screen for recognizing the position on the screen can be added.

The portable storage device 40 is a data storage device capable of writing and reading data. The portable storage device 40 corresponds to a removable storage device having a memory chip called 'flash memory' such as an SD card. (E.g., data compression) image data from the processor module 20 in accordance with the image data.

The power supply unit 50 is connected to a constant power source of the vehicle and receives 12 V DC power from the battery 3 of the vehicle.

The vehicle image recording apparatus 1 as described above is operated in a traveling mode and a parking mode, and has an impact detection function and a motion detection function in a parking mode. When an impact or a motion is detected, And stores it in the storage device 40.

In processing the image data in the image recording apparatus 1 for a vehicle as described above, the present invention provides a method of improving data processing in a vehicle image recording apparatus having a motion recognition function according to the present invention. The image data storing step S10, the motion image data extracting step S20, the motion image data comparing step S30, and the motion image data stopping step S40, Module 20 as shown in FIG.

The motion image data storing step S10 is a motion recognition function performed in the parking mode state as described with reference to FIG. 1, and is a function of detecting a frame per second (e.g., 8 frames / second) of an image acquired through the camera module 10 (Motion image data) for a set time (e.g., 60 seconds) is stored in the mobile storage device 40 when it is determined that an object (e.g., a car or a person) has appeared when the contrast between frames is changed .

At this time, it is preferable that the image data is stored in the mobile storage device 40 as motion image data stored by motion recognition, separated from the event image data stored during the impact or running.

The motion image data extraction step (S20) extracts temporally continuous motion image data stored in the mobile storage device (40).

That is, in the motion image data extracting step (S20), as shown in FIG. 5, in the data processing method of the vehicle image recording apparatus having the motion recognition function, a plurality of motion image data (E.g., motion image data 005 to 008).

For example, if the motion image data stores an image for 60 seconds, extracting the 4 consecutive motion image data to extract the image for 4 minutes.

The motion image data comparison step S30 compares the motion image data extracted in the motion image data extraction step S20.

When the motion is recognized by the display LED 2 of the vehicle image storage device 1 to store the image data, since the same motion image data is repeatedly stored in the mobile storage device 40, When a plurality of motion image data are extracted and the same image is repeatedly stored, it can be determined that the motion is recognized and stored by the display LED 2.

At this time, the comparison of the extracted motion image data can be performed through various image comparison methods, and is not limited to any specific image comparison method.

For example, it is possible to extract and compare frames of the same position (second) in time from a plurality of motion image data stored for a predetermined time.

If the storage time of the motion image data is 60 seconds and 8 frames per second are stored, the frames are extracted at intervals of 10 seconds of each motion image data, and the extracted frames are compared to judge whether the two motion image data are identical And the comparison of the extracted frames can be made by comparing the contrast values of the frames with each other.

If the same motion image data is not found in the motion image data comparison step S30, the image data is saved in accordance with the motion recognition. If the same motion image data is found, The light emitted from the display LED 2 is reflected by the foreign substance in the display screen, and the light is recognized as motion and it is determined that the motion image data is stored.

If the same motion image data is found in the motion image data comparison step S30, the motion image data suspension step S40 is performed to stop the motion image data storage according to the motion recognition function.

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, And such variations and modifications are intended to fall within the scope of the appended claims.

1: Vehicle image recording device
2: Display LED
3: Battery
10: Camera module
20: Processor module
40: Removable storage
50:
60: microphone
70: Speaker

Claims (3)

A camera module for acquiring an image; A processor module for processing the acquired image; A display unit for outputting the image acquired by the camera module and the image data stored in the portable storage device; A portable storage device for storing images acquired by the camera module; And a power supply unit for receiving an external direct current (DC) power supply, the method comprising the steps of: driving the vehicle in a driving mode and a parking mode;
A motion image data storage step of storing the image data as an event image by dividing the stored image data through the motion recognition function;
A motion image data extraction step of extracting temporally continuous motion image data stored in the motion image data storage step;
A motion image data comparison step of comparing the motion image data extracted in the motion image data extraction step; And
And stopping the motion image data storage according to the motion recognition function when the same motion image data exists in the motion image data comparison step,
The motion image data extracting step extracts frames of the same position in time from a plurality of pieces of motion image data stored for a predetermined time,
And the image data comparison step compares the contrast of frames at the same position in time in the plurality of motion image data with each other. delete delete
KR1020150054372A 2015-04-17 2015-04-17 Data processing method of vehicle image recording apparatus having a motion detection. KR101696647B1 (en)

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KR100970439B1 (en) * 2009-07-09 2010-07-15 씨아이즈주식회사 Video recorder capable of monitoring the circumference of the car

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Publication number Priority date Publication date Assignee Title
KR100970439B1 (en) * 2009-07-09 2010-07-15 씨아이즈주식회사 Video recorder capable of monitoring the circumference of the car

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