KR20110021255A - Video and still capture processor unit and the method - Google Patents

Abstract

PURPOSE: A video and still capture processor unit and a method thereof are provided to supply an image having the luminance near to the luminance of original image data even under low luminance. CONSTITUTION: An operation sensing unit(115) senses the motion of an object, and a second image sensor(130) outputs an image signal of a still image photographed by a photographing device at the time when receiving an output request from the operating sensing unit. An image control unit(140) controls each image signal outputted from the first and second image sensors as image data. A data processing unit(150) stores and transfers the image data.

Description

Video and still image processing apparatus and its method {Video and still capture processor unit and the method}

The present invention relates to a moving image and still image processing apparatus and a method thereof, and more particularly, to an image sensor for outputting an image signal of a moving image and an image sensor for outputting an image signal from which an infrared cut filter is removed from an image signal of a still image and low light. The present invention relates to a moving picture and still picture processing apparatus and a method thereof.

In general, security surveillance cameras are installed in various locations in banks and large buildings, and the cameras are connected to the guard room or the central control room, that is, a management host, to cope with a situation that may occur in case of emergency.

The conventional security monitoring apparatus acquires an image and includes an camera having an infrared cut filter, an image sensor for outputting an image signal, an image processing unit for converting the image signal into image data, and storing image data converted from the image processing unit to the outside. It may include a data processor for transmitting to.

Such a security monitoring apparatus controls image data of a moving image and a still image using the same image sensor regardless of a moving image or a still image of the image.

As described above, in order to acquire image data of a moving image and a still image using one image sensor, it is impossible for the user to acquire still image data at a desired point in the moving image, that is, at a point in time when the still image is desired to be acquired.

The image sensor acquires brightness information of the image data through an infrared signal passing through the infrared cut filter of the camera. However, there is a problem that it is difficult to obtain brightness information of image data acquired at night or in low light. Therefore, there is a problem in that the contents of the image data displayed to the outside cannot be viewed accurately, and thus the function for security surveillance is degraded.

Accordingly, the present invention is to solve the disadvantages and problems of the video and still image processing apparatus and method therefor, the image sensor for outputting the image signal of the video and the infrared cut filter is removed from the image signal and low light of the still image It is an object of the present invention to provide a moving image and still image processing apparatus and a method separately provided with an image sensor for outputting the image signal.

The present invention for achieving the above object is provided with an infrared cut filter, shooting means for shooting an image; A first image sensor for outputting an image signal of a moving image acquired from the photographing means; A motion detector for detecting a movement of the subject; A second image sensor for outputting an image signal of a still image captured by the photographing means at a point in time at which an output request is received from the motion detection unit; An image control unit controlling each image signal output from the first image sensor and the second image sensor as image data; And a data processor which stores and transmits the image data.

The second image sensor may output an image signal from which the infrared cut filter is removed at low light.

The image controller may further include: a determiner configured to determine whether to output an image signal from which the infrared cut filter of the second image sensor is removed; An input unit for obtaining brightness information and color information from the image signal; And an adjusting unit configured to convert and adjust an image signal into image data based on brightness information and color information obtained from the input unit.

The data processor may further include a memory unit configured to store image data; And a transmission unit which transmits the image data stored in the memory unit to the outside.

The display apparatus may further include a display unit for displaying image data transmitted from the data processor.

According to an aspect of the present invention, there is provided a video recording method including: photographing a video under general illumination; outputting the video image signal; Detecting whether a subject moves; Outputting a still image image signal; Acquiring brightness information and color information from the image signal of the still image; Converting and adjusting an image signal of the still image into image data based on the brightness information and color information; And storing the image data and transmitting the image data to the outside.

At this time, in the detecting of the movement of the subject, if the movement of the subject is not detected, the video may further include obtaining brightness information and color information from the video image signal.

And after obtaining brightness information and color information from the video image signal, converting and adjusting image signals of the video into image data based on the brightness information and color information, and storing and transmitting the image data. May be further included.

The present invention for achieving the above object comprises the steps of shooting a video in low light; Outputting the moving image signal; Detecting whether a subject moves; Outputting an image signal from which the infrared cut filter of the still image is removed; Acquiring brightness information from the image signal from which the infrared cut filter is removed; Acquiring color information from the image signal of the video; Converting and adjusting an image signal of the still image into image data based on the brightness information and color information; And storing the image data and transmitting the image data to the outside.

At this time, in the step of detecting the movement of the subject, if the movement of the subject is not detected, the video after the step of obtaining brightness information and color information from the video image signal and the brightness information and color information The method may further include converting and adjusting the image signal of the video into image data.

The method may further include storing and transmitting the image data after converting and adjusting the image signal of the video to image data.

As described above, the moving image and still image processing apparatus and the method according to the present invention output the first image sensor for outputting the image signal of the moving image, the image signal of the still image, and the image signal from which the infrared cut filter is removed in low light. By providing a second image sensor to compensate for the loss of the brightness information, there is an effect that can provide an image close to the brightness of the original image data even in low light conditions.

In addition, by simultaneously acquiring and providing a moving image and a still image, there is an effect of eliminating a delay time generated when a mode is changed and increasing security monitoring efficiency.

Details of the effects including the technical configuration of the video and still image processing apparatus and method according to the present invention will be clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention.

1 and 3 will be described in detail with respect to the moving picture and still image processing apparatus and method according to an embodiment of the present invention.

Video and still image processing device

1 is a block diagram of a video and still image processing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the video and still image processing apparatus 100 according to an embodiment of the present invention includes a photographing means 110, a first image sensor 120 for outputting an image signal of a video, and a motion detection unit ( 115), an image controller for converting and controlling respective image signals of the second image sensor 130, the first image sensor 120, and the second image sensor 130 to output an image signal of a still image. 140, the data processor 150 may be included.

The photographing means 110 acquires an image of a subject through a lens 111 with a camera. In this case, the photographing means 110 continuously photographs a video of the corresponding place for security surveillance.

In addition, the photographing means 110 includes an infrared cut filter 112 for blocking excessive infrared rays included in the light incident through the lens 111 therein.

The first image sensor 120 is made of a CCD or a CMOS, and collects the light incident through the lens 111 to generate an image signal. That is, the first image sensor 120 may output an image signal of a moving image acquired from the photographing means 110.

The motion detector 115 detects the movement of the subject and requests the photographing means 110 to capture still images.

In this case, the subject may be a person or an object. Here, when the subject is a human, the motion detection unit 115 may use a pyroelectric sensor that detects infrared rays generated by a human body and detects them in a non-contact manner. The structure of the pyroelectric sensor is classified into a single type, a dual type, and a qued type according to the number of sensor elements. The larger the number of elements, the better the sensitivity and accurate human body detection. However, since a large number of devices is expensive, a dual type is generally used.

The second image sensor 130 outputs an image signal of a still image acquired from the photographing means 110 at the time when the output request is received from the motion detection unit 115. That is, the second image sensor 130 is set to a standby state in a general situation, and then is switched to an operation state capable of outputting an image signal of an image according to the output signal of the motion detection unit 115.

In addition, since the second image sensor 130 outputs a still image, the second image sensor 130 has a higher resolution than the first image sensor 120 outputting a moving image, but at low light, the infrared cut filter 112 may be removed to provide a black and white image. have.

Therefore, the second image sensor 130 may output an image signal from which the infrared cut filter 112 is removed in a low light condition. Here, low light refers to a dark night or a state in which no separate lighting is provided.

The image controller 140 includes a determination unit 141, an input unit 142, and an adjustment unit 143.

The determination unit 141 may determine whether to output an image signal from which the infrared cut filter 112 of the second image sensor 130 is removed. That is, the second image sensor 130 removes the infrared cut filter 112 at low light and outputs an image signal that does not include color information.

The input unit 142 obtains brightness information and color information from the infrared signals output from the first image sensor 120 and the second image sensor 130. In this case, the second image sensor 130 may not acquire color information at low illumination, but may acquire only brightness information.

The adjusting unit 143 converts and adjusts an image signal into image data based on brightness information and color information obtained from the input unit 142.

In this case, in low light, the second image sensor 130 may obtain image data color information of the first image sensor 120 and adjust the brightness and color of the image data accordingly. That is, the still image data may be adjusted similarly to the color of the moving image data.

The data processor 150 includes a memory 151 and a transmitter 152.

The memory unit 151 stores the image data converted and adjusted by the image control unit 140.

The transmission unit 152 transmits image data stored in the memory unit 151 to the outside.

The display unit 160 displays the image data transmitted from the data processor 150. In this case, the display 160 may display a moving image and a still image having brightness similar to that of the moving image.

As such, the first image sensor 120 for outputting an image signal of a moving image and the second image sensor 130 for outputting an image signal from which the infrared cut filter 112 is removed from the image signal of the still image and low light. It can be provided separately to correct the loss of brightness information. In addition, by providing the video and the still image at the same time, it is possible to eliminate the delay when changing the image mode.

How to process movies and still images

2 is a flowchart illustrating a video and still image processing method performed in general illumination according to an embodiment of the present invention, and FIG. 3 is a flowchart of a video and still image processing method performed in low light according to an embodiment of the present invention.

2 and 3, a video and still image processing method according to an exemplary embodiment of the present invention uses a video and still image processing station 100 having the same configuration as that of FIG. 1 described above. Duplicate descriptions will be omitted below as a method of processing.

As shown in FIG. 2, a video and still image processing method performed in general illuminance will be described.

First, continuous video shooting is started at normal illuminance (S100). This may be performed by the photographing means 100 including the lens 111 and the infrared cut filter 112.

Next, the image signal of the video is output (S110). This may be performed by the first image sensor 120. The first image sensor 120 may be formed of a CCD or a CMOS.

Next, whether the movement of the subject is detected is detected (S120). This may be performed by the motion detector 115.

If the movement of the subject is not detected, color information and brightness information are acquired from the image signal of the video, and converted into image data and stored. (S121, S122, S123). The image data of the video is transmitted to the outside and completed. (S124)

However, when the movement of the subject is detected, the motion detection unit 115 captures a still image at that point in time by the photographing means 100 and outputs an image signal of the still image. (S130, S140) If the motion detection unit 115 is not present, it may be determined whether the motion is detected from the image output signal of the first image sensor 120.

Next, brightness information and color information are obtained from the image signal of the still image. (S150) This may be performed by the input unit 142 of the image control unit 140.

Next, the image signal of the still image is converted into image data and adjusted based on the brightness information and the color information (S160). This may be performed by the adjusting unit 143 of the image controller 140.

Next, the image data is stored and transmitted to the outside (S170 and S180). This may be performed by the memory unit 151 and the transmission unit 152 of the data processing unit 150.

As described above, the present invention is provided with a first image sensor 120 for outputting an image of a video in general illumination and a second image sensor 130 for outputting an image of a still image, thereby simultaneously acquiring and It can eliminate delays caused by mode change and improve security monitoring efficiency.

As shown in FIG. 3, a video and still image processing method performed at low illumination will be described.

First, continuous video recording starts at low light (S200). Here, low light refers to a dark night or a state in which no separate lighting is provided.

This may be achieved by the photographing means 100 including the lens 111 and the infrared cut filter 112.

Next, the image signal of the video is output (S210). This may be performed by the first image sensor 120. The first image sensor 120 may be formed of a CCD or a CMOS.

Then, whether the movement of the subject is detected (S220). This may be performed by the motion detector 115.

If the movement of the subject is not detected, color information and brightness information are acquired from the image signal of the video, and converted into image data and stored. (S221, S222, S223). The image data of the video is transmitted to the outside and is completed. (S224)

However, when the movement of the subject is detected, the motion detection unit 115 captures a still image at that time and outputs an image signal of the still image to the photographing means 100. (S230, S240) The still image outputs an image signal from which the infrared cut filter 112 is removed since the infrared cut filter 112 is removed at low light.

This may be done by the determination unit 141 of the image control unit 140.

Thereafter, brightness information is obtained from the image signal from which the infrared cut filter 112 of the still image is removed (S250). This may be performed by the input unit 142 of the image controller 140. In this case, in the image signal from which the infrared cut filter 112 of the still image is removed, color information may not be obtained at low illumination, and only brightness information may be obtained.

Next, color information is acquired from the image signal of the video, and the image signal from which the infrared cut filter of the still image is removed is converted into image data based on the brightness information and the color information and adjusted (S260, S270).

Therefore, the image data of the still image may be adjusted to image data having a color similar to that of the moving image image data. This may be done by the input unit 142 and the adjusting unit 143 of the image control unit 140.

Next, the image data of the still image is stored and transmitted to the outside (S280 and S290). This may be performed by the memory unit 151 and the transmitter 152 of the data processor 150.

As such, the present invention includes a first image sensor 120 for outputting a video image signal at low light and a second image sensor 130 for outputting an image signal from which the infrared cut filter 112 is removed in a low light condition. By compensating for the loss of information, it is possible to provide an image close to the brightness of the original image data even in low light conditions.

Although the preferred embodiments of the present invention described above have been described in detail, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Accordingly, the scope of the present invention should not be limited to the disclosed embodiments but should be regarded as belonging to various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims, or the scope of the present invention. .

1 is a block diagram of a video and still image processing apparatus according to an embodiment of the present invention.

2 is a flowchart illustrating a video and still image processing method performed in general illumination according to an embodiment of the present invention.

3 is a flowchart illustrating a video and still image processing method performed in low light according to an embodiment of the present invention.

Description of the Related Art [0002]

100: motion picture and still image processing device

110: recording means 120: first image sensor

130: second image sensor 140: image control unit

150: data processing unit 160: display unit

Claims (11)

An infrared cut filter, photographing means for capturing an image; A first image sensor for outputting an image signal of a moving image acquired from the photographing means; A motion detector for detecting a movement of the subject; A second image sensor for outputting an image signal of a still image captured by the photographing means at a point in time at which an output request is received from the motion detection unit; An image control unit controlling each image signal output from the first image sensor and the second image sensor as image data; And A data processor which stores and transmits the image data; Video and still image processing apparatus comprising a. The method of claim 1, The second image sensor is a video and still image processing device for outputting an image signal from which the infrared cut filter is removed at low light. 3. The method of claim 2, The image control unit A determination unit determining whether to output an image signal from which the infrared cut filter of the second image sensor is removed; An input unit for obtaining brightness information and color information from the image signal; And An adjusting unit for converting and adjusting an image signal into image data based on brightness information and color information obtained from the input unit; Video and still image processing apparatus comprising a. The method of claim 1, The data processing unit A memory unit for storing image data; And A transmission unit which transmits the image data stored in the memory unit to the outside; Video and still image processing apparatus comprising a. The method of claim 1, Moving picture and still image processing apparatus comprising a display unit for displaying the image data transmitted from the data processing unit. In normal illuminance Shooting a video; Outputting the moving image signal; Detecting whether a subject moves; Outputting a still image image signal; Acquiring brightness information and color information from the image signal of the still image; Converting and adjusting an image signal of the still image into image data based on the brightness information and color information; And Storing and transmitting the image data to the outside; Video and still image processing method comprising a. The method of claim 6, In the step of detecting the movement of the subject, And if the motion of the subject is not detected, the video further comprising acquiring brightness information and color information from the video image signal. The method of claim 7, wherein After acquiring brightness information and color information from the video image signal, And converting and adjusting image signals of the video into image data based on the brightness information and color information, and storing and transmitting the image data. In low light Shooting a video; Outputting the moving image signal; Detecting whether a subject moves; Outputting an image signal from which the infrared cut filter of the still image is removed; Acquiring brightness information from the image signal from which the infrared cut filter is removed; Acquiring color information from the image signal of the video; Converting and adjusting an image signal of the still image into image data based on the brightness information and color information; And Storing and transmitting the image data to the outside; Video and still image processing method comprising a. The method of claim 9, In the step of detecting the movement of the subject, If the movement of the subject is not detected, the video may then be obtained by obtaining brightness information and color information from the video image signal and converting and adjusting the image signal of the video to image data based on the brightness information and color information. The video and still image processing method further comprises a step. The method of claim 10, After converting and adjusting the image signal of the video to image data, The video and still image processing method further comprising the step of storing and transmitting the image data.

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