KR101775818B1 - High quality color image getting apparatus - Google Patents

High quality color image getting apparatus Download PDF

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Publication number
KR101775818B1
KR101775818B1 KR1020160017282A KR20160017282A KR101775818B1 KR 101775818 B1 KR101775818 B1 KR 101775818B1 KR 1020160017282 A KR1020160017282 A KR 1020160017282A KR 20160017282 A KR20160017282 A KR 20160017282A KR 101775818 B1 KR101775818 B1 KR 101775818B1
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KR
South Korea
Prior art keywords
color image
illumination
color
image
illuminance
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KR1020160017282A
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Korean (ko)
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KR20170095623A (en
Inventor
공지현
박태순
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케이티텔레캅 주식회사
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Priority to KR1020160017282A priority Critical patent/KR101775818B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/188—Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19608—Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
    • H04N5/2256—
    • H04N5/2258—

Abstract

[0001] The present invention relates to a color image acquiring apparatus for illuminating and illuminating an IR low-illuminance camera, in which a predetermined number of color image frames are secured by illuminating the illumination device when a certain condition is met or when a sensor is sensed, The present invention provides an illumination and IR low-illuminance camera interlocking color image acquisition apparatus capable of acquiring a desired high-quality color image by restoring a color image or a monochrome image captured in a noise state through a reference color image value have.

Description

{HIGH QUALITY COLOR IMAGE GETTING APPARATUS}

[0001] The present invention relates to a color image acquiring apparatus for illuminating and illuminating an IR low-illuminance camera, and more particularly, And an IR low-light-level camera interlocking color image acquiring device capable of acquiring a desired high-quality color image by restoring a color image or a monochrome image picked up in a low-illuminance state or a noise state through a reference color image value .

As is well known, a conventional mechanical security system is constituted by a camera, a detection sensor, and a master key, and a camera device interlocked with the detection sensor captures the external shape of the shooter, In addition, it is possible to promptly determine whether the detection sensor is malfunctioning by the control center by the naked eye, and thus it is possible to prevent waste of money due to wrong operation.

However, such an IR camera has a problem in that it is difficult to identify an object due to a whitening phenomenon when the distance from the object is too narrow, and the color value of the object is adopted It is difficult to do.

In addition, in the case of a low-illuminance or ultra low-light camera, there is an advantage that a color image can be obtained in a low-illuminance environment. However, in a lighting environment of less than 3Lux, noise is serious and color sharpness is also difficult to be guaranteed.

Therefore, it is difficult to identify the face of a criminal who has been photographed from a remote location. Therefore, the criminal is usually traced by utilizing factors such as color and dressing, and a variety of colors such as hair color, clothes color and shoe color There is a problem that it is difficult to obtain the element.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances of the prior art described above, and it is an object of the present invention to provide a color image display apparatus which illuminates a lighting apparatus when a certain condition is met, Which is capable of acquiring a color image of a desired high quality by restoring a color image or a monochrome image captured by the camera with reference to a reference color image value.

According to a preferred embodiment of the present invention, an IR camera (4a-4n) for capturing day and night images; An illuminating device (3a-3n) illuminated by receiving a lighting control signal from an illumination lighting control section (50); A sensor (2a-2n) for detecting movement of the object and applying a signal to the controller (58) to recognize the movement; An illumination lighting control unit 50 for illuminating the illumination devices 3a-3n for a predetermined time based on whether or not an object recognized through the sensors 2a-2n is moving, thereby securing a color image; A color image restoration processing unit 54 for restoring a low-illuminance color image or a monochrome image to a color image upon application of the color image value; A data storage unit 56 for storing the color image and the monochrome image secured from the IR cameras 4a to 4n; The image is secured through the IR cameras 4a to 4n and an illumination lighting signal is transmitted to the illumination lighting control unit 50 when the object is detected and the color image is restored through the color image restoration processing unit 54 And a control unit (58) for controlling the IR illuminance camera interlocking color image acquiring device.

Preferably, the illuminating devices 3a-3n, the sensing sensors 2a-2n and the IR cameras 4a-4n are mapped through the control unit 58, respectively. An acquisition device is provided.

Preferably, the illumination device 44 further includes an illumination setting unit 44 for setting the schedule so that the illumination devices 3a-3n are lit for a predetermined period of time at regular intervals. do.

Preferably, the IR cameras 4a to 4n are driven to secure an image at all times, and a number of frame color images secured while the lighting apparatuses 3a to 3n are lit and lighting are stored are stored, There is provided an illumination and IR low-illuminance camera interlocking color image acquisition apparatus characterized by further comprising an image recognition unit (46) for storing a color value and a luminance value of a frame pixel.

Preferably, when the illuminating device 3a-3n is turned off, it operates in a low-illuminance camera mode to obtain a color image if the illuminance is 1 Lux or more. If the illuminance is 1 lux or less, There is provided an illumination and IR low illumination camera interlocking color image acquisition apparatus characterized by further comprising a selection unit (48).

Preferably, when the illumination apparatuses 3a-3n are turned on, a color image frame having a color value and a luminance value relatively high among color images acquired through the IR cameras 4a-4n is referred to as a reference color image frame There is provided an illumination and IR low illumination camera interlocking color image acquiring device, characterized by further comprising a reference color image selecting section (52)

The illumination and IR low-illuminance camera interlocking color image acquiring apparatus according to the present invention is capable of acquiring only a black-and-white image because it can be difficult to identify a subject due to a whitening phenomenon when a distance from the subject is too short, The lighting device is turned on only when a certain condition is satisfied and the bright color image is restored by using the color image obtained in a short time. It is very economical, economical because there is no waste of electric power, and it is possible to acquire high quality color image by acquiring image of color image level obtained from expensive ultra low light camera, so that hair color, clothes color, shoe color And the like can be further increased.

FIG. 1 is a schematic diagram showing the overall system configuration of an illumination and IR low-illuminance camera interlocking color image acquisition apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of an illumination and IR low-illuminance camera interlocking color image acquisition apparatus according to an embodiment of the present invention;
3 illustrates a color image acquisition principle of an illumination and IR low illumination camera interlocking color image acquisition device according to one embodiment of the present invention,
4 is a flow chart illustrating the signal flow of an illumination and IR low illumination camera interlocking color image acquisition device in accordance with an embodiment of the present invention;
FIGS. 5A, 5B, 5C, 5D, and 5E illustrate color image restoration by case using the illumination and IR low-illuminance camera interlocking color image acquisition apparatus according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing an entire system configuration including a lighting and IR low-illuminance camera interlocking color image acquisition apparatus according to an embodiment of the present invention. FIG. FIG. 8 is a block diagram showing a configuration of an image acquisition apparatus.

The illumination and IR low illumination camera interlocking color image acquisition apparatus 40 according to an exemplary embodiment of the present invention illuminates the illumination device when a certain condition is met during operation of the IR camera or when a sensor is sensed, And a color image or a monochrome image picked up in a low-light state or a noise state is restored through a reference color image value, thereby obtaining a desired high-quality color image.

That is, the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to an embodiment of the present invention acquires a color image having a high color value and a high luminance value using illumination, applies a value of the color image, The color image and the monochrome image of the color image are restored to excellent color images.

In particular, the illumination and IR low-illuminance camera interlocking color image acquisition device 40 according to an exemplary embodiment of the present invention illuminates the illumination when the movement of the object is generated to secure a color image of the object so that even if the object disappears from the frame, The color of an object photographed in a mode or a monochrome mode can be restored to an excellent level. Therefore, if the object is a criminal, the color characteristics of the criminal can be secured, thereby increasing the early arrest rate.

Accordingly, the present invention provides an IR camera 4a-4n for capturing day and night images; An illuminating device (3a-3n) illuminated by receiving a lighting control signal from an illumination lighting control section (50); And a sensing sensor 2a-2n for sensing the movement of the object and applying a signal to the control unit 58 to recognize it.

The illumination devices 3a-3n, the detection sensors 2a-2n and the IR cameras 4a-4n are mapped through the control unit 58, respectively.

In addition to the moving sensors for detecting movement, the sensing sensors 2a-2n can be replaced with various sensors for sensing vibrations and human body heat.

Meanwhile, the illumination and IR low-illuminance camera interlocking color image acquiring device 40 according to an embodiment of the present invention may include a lighting device 3a (not shown) based on whether the object recognized through the sensing sensors 2a-2n is moving, -3n) for a predetermined time to secure a color image; A color image restoration processing unit 54 for restoring a low-illuminance color image or a monochrome image to a color image upon application of the color image value; A data storage unit 56 for storing the color image and the monochrome image secured from the IR cameras 4a to 4n; The image is secured through the IR cameras 4a to 4n and an illumination lighting signal is transmitted to the illumination lighting control unit 50 when the object is detected and the color image is restored through the color image restoration processing unit 54 And a control unit 58 for controlling the control unit 58 so that it can be controlled.

The color image restoration processing unit 54 performs a restoration process by restoring a color value and a luminance value of the original color image to a color value and a luminance value of the reference color image in a state where the reference color image is secured.

In addition, the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to an embodiment of the present invention may include a lighting system in which a schedule is set so that the lighting apparatuses 3a-3n are lit for a predetermined period of time A setting unit 44; The IR cameras 4a to 4n are driven to secure an image at all times and a number of frame color images secured while the lighting apparatuses 3a to 3n are lit and lighting are stored are stored, And an image recognition unit 46 for storing the color value and the luminance value.

That is, in the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to the embodiment of the present invention, when motion is detected through the sensing sensors 2a-2n, the illumination devices 3a-3n are turned on, However, in order to solve such a problem, the illumination setting unit 44 is configured, and the illumination setting unit 44 preferably has a predetermined lighting period scheduled .

When the illuminating device 3a-3n is turned off, the illumination and IR low-illuminance camera interlocking color image acquiring device 40 according to an embodiment of the present invention operates in a low-illuminance camera mode when the illuminance is 1 Lux or more, And if the illuminance is 1 lux or less, the image acquisition unit 48 acquires an image in the monochrome image mode.

That is, the photographed image selecting unit 48 may determine which photographing mode to select according to the illuminance, so that the restoration ratio can be further increased in the future restoration.

The illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to the embodiment of the present invention includes therein the IR cameras 4a-4n when the illumination apparatuses 3a-3n are turned on And a reference color image selecting unit 52 for selecting, as a reference color image frame, a frame of a color image having a relatively high color value and a luminance value among the color images acquired through the color image obtaining unit.

That is, if the color values of the color image photographed at a specific point in time and the luminance value are excellent among the plurality of color image frames obtained by lighting the light devices 3a to 3n at regular intervals and at different points in time, The selecting unit 52 selects the corresponding image as the reference color image.

FIG. 3 is a diagram illustrating a color image acquisition principle of an illumination and IR low illumination camera interlocking color image acquisition apparatus according to an embodiment of the present invention. FIG. 5A, 5B, 5C, 5D, and 5E illustrate a color image restoration state for each case using the illumination and IR low-illuminance camera interlocking color image acquisition apparatus according to an exemplary embodiment of the present invention. Fig.

First, when the lighting and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to the embodiment of the present invention is turned on, the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 receives the IR cameras 4a-4n To drive the imaging.

The illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 determines whether a sensor signal is applied from the various sensors 2a-2n or whether a lighting setting period for the illumination apparatuses 3a-3n has arrived .

The sensing sensors 2a-2n include a vibration sensor, a motion sensor, and a heat sensing sensor. When any one of the sensors senses a monitoring signal, the lighting devices 3a-3n are turned on.

The image recognizing unit 46 drives the IR cameras 4a-4n to secure images at all times, and a number of frame color images acquired during lighting of the illuminating devices 3a-3n, And stores the color value and the luminance value of each frame pixel.

That is, in the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to the embodiment of the present invention, when motion is detected through the sensing sensors 2a-2n, the illumination devices 3a-3n are turned on, However, in order to solve such a problem, the illumination setting unit 44 is configured, and the illumination setting unit 44 preferably has a predetermined lighting period scheduled .

That is, the illumination and IR low-illuminance camera interlocking color image acquiring device 40 according to the embodiment of the present invention allows the illuminating device 3a-3n to emit light when the illumination device 3a-3n is turned off, In case of 1 Lux or more, it operates in the low light camera mode to secure color images and if the illuminance is less than 1 Lux, the image is acquired in the monochrome image mode.

That is, the photographed image selecting unit 48 determines which photographing mode to select according to the illuminance, so that the restoration rate can be further increased in the future restoration.

If a monochrome image, a low-illuminance color image at non-lighting, and a color image picked up when the lighting devices 3a-3n are turned on are secured, the illumination and IR low-illuminance camera interlocked color image acquisition device 40 performs color image restoration. At this time, the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to an embodiment of the present invention performs restoration through the color image restoration algorithm, May be mounted on an imaging device such as an ultra low light camera or DVR or NVR.

In this case, the illumination and IR low-illuminance camera interlocking color image acquisition apparatus 40 according to the embodiment of the present invention selects the reference color image frame for color image restoration through the reference color image selection unit 52, When the illumination devices 3a-3n are turned on, a color image frame having a color value and a luminance value relatively high among color images acquired through the IR cameras 4a-4n is selected as a reference color image frame.

For example, as shown in FIG. 3, when there are a plurality of color images obtained by lighting the lighting apparatuses 3a-3b within a predetermined time, the reference color image selection section 52 selects color values And the color image having the highest color value and luminance value is selected by comparing the luminance values relatively.

In addition, in order to restore the image picked up in the state in which the illumination apparatuses 3a-3b are turned off to a monochrome image or a color image including noises and a noise-free clear color image, And luminance values.

At this time, in case of a background screen other than an object, the reference color image is used as it is. In the case of a moving object, the moving object is tracked to measure the amount of change, and the color of the existing object pixel And applying the color value and the luminance value of the reference color image pixel to the luminance value and the luminance value.

FIG. 5B is a view of restoring the IR mode image into a clear color image when there is no object movement, FIG. 5C is a view of restoring the IR mode image into a clear color image when there is object motion, FIG. 5E is a view of reconstructing a low-illuminance mode image into a clear color image when there is an object motion.

Meanwhile, the illumination and IR low-illuminance camera interlocking color image acquisition apparatus according to the embodiment of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical gist of the present invention.

2a-2n: Detection sensor, 3a-3n: Lighting device,
4a-4n: IR camera, 6: host,
10: control server, 40: color image acquisition device,
42: communication module, 44: illumination setting section,
46: image recognition unit, 48: picked-up image selection unit,
50: illumination lighting control unit, 52: reference color image selection unit,
54: color image restoration processing section, 56: data storage section.

Claims (6)

An IR camera 4a-4n for capturing day and night images;
An illuminating device (3a-3n) illuminated by receiving a lighting control signal from an illumination lighting control section (50);
A sensor (2a-2n) for detecting movement of the object and applying a signal to the controller (58) to recognize the movement;
An illumination lighting control unit 50 for illuminating the illumination devices 3a-3n for a predetermined time based on whether or not an object recognized through the sensors 2a-2n is moving, thereby securing a color image;
A color image restoration processing unit 54 for restoring a low-illuminance color image or a monochrome image to a color image upon application of the color image value;
A data storage unit 56 for storing the color image and the monochrome image secured from the IR cameras 4a to 4n;
The image is secured through the IR cameras 4a to 4n and an illumination lighting signal is transmitted to the illumination lighting control unit 50 when the object is detected and the color image is restored through the color image restoration processing unit 54 A control unit 58 for controlling the control unit 60 to be able
When the illumination devices 3a-3n are turned on, a reference color image frame is selected as a color image frame having a color value and luminance value relatively high among the color images acquired through the IR cameras 4a-4n And a color image selection unit (52). The method according to claim 1,
Wherein the illumination devices 3a-3n, the sensing sensors 2a-2n, and the IR cameras 4a-4n are mapped through the control unit 58, respectively. The method according to claim 1,
Further comprising an illumination setting unit (44) for setting a schedule such that the illumination devices (3a-3n) are lit up for a predetermined period of time at regular intervals. The method according to claim 1,
The IR cameras 4a to 4n are driven to secure an image at all times and a number of frame color images secured while the lighting apparatuses 3a to 3n are lit and lighting are stored are stored, Further comprising an image recognition unit (46) for storing a color value and a luminance value. The method according to claim 1,
When the illuminating device 3a-3n is turned off, it is operated in a low-illuminance camera mode to obtain a color image if the illuminance is 1 Lux or more. When the illuminance is 1 lux or less, 48. The color image acquiring apparatus according to claim 1, delete
KR1020160017282A 2016-02-15 2016-02-15 High quality color image getting apparatus KR101775818B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015222916A (en) * 2014-05-23 2015-12-10 パナソニックＩｐマネジメント株式会社 Imaging apparatus, imaging system and imaging method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015222916A (en) * 2014-05-23 2015-12-10 パナソニックＩｐマネジメント株式会社 Imaging apparatus, imaging system and imaging method

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