KR101336233B1 - A digital image terminal having specific part image detection and alarm function and the method thereof - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a method, apparatus and recording medium thereof for providing a function of detecting and alarming a specific portion of an image in an imaging apparatus. The present invention provides a self-mode entry step of entering a self-mode of a camera using a specific key and receiving a number of users to be photographed, an area display step of displaying a default detection area using a GUI, and a detection area using a menu key. In the edit mode step for editing, and in the edit mode step, the area to be edited is determined, an area confirmation step for determining a detection area using the OK key, an image detection step for performing face detection by pressing the shutter button half, and a face detection part Detecting and alarming a specific portion of the image in the image device comprising a shooting preparation step of determining whether or not to enter the set detection area and showing the result to the user through the warning sound and LED to include all the number of users to shoot It's a way to provide functionality. The image device of the present invention configured as described above informs the direction away from the user when all of the face detection parts are not included in the area set in the self-capturing mode. It has the effect of coming in.

Image, Self Shot, Face Detection, Self Mode

Description

A digital image terminal having specific part image detection and alarm function and the method

1 is a detailed flowchart illustrating an algorithm of exposure and shaking state check according to the prior art;

2 is a flowchart illustrating a risk warning method using image processing in a wireless communication terminal according to the prior art.

3 is a flowchart illustrating a method for providing a specific portion detection and alarm function in an image device according to the present invention.

4A to 4C are block diagrams showing an operational connection relationship between components of an image device for performing a specific portion detection and alarm function according to the present invention;

5A to 5C are block diagrams showing a process according to a flowchart showing a method for providing a specific portion detection and alarm function in the image device according to FIG.

The present invention relates to an image device, and more particularly, to indicate a direction away from the user when all of the face detection parts are not included in the area set in the self-capturing mode. A specific portion detection and alarm function imaging apparatus and method for causing all persons to enter a captured image area.

Conventionally, a technology for informing about a wrong picture after shooting, a technology for viewing by using a remote controller or LCD rotation, a front LCD, and the like are described.

First, there are many techniques for detecting specific parts, such as face detection, in all algorithms for image processing. This technology is widely used to recognize or store a specific person in various security devices and cameras, and in order to express better image quality in devices equipped with image sensors such as cameras, It is used in exposure, white balance, etc. For example, Korean Patent Laid-Open Publication No. 2002-0032048 relates to a method of recognizing a subject by using information on a face image of a subject, and more particularly, searches for an image input through a camera and stores the image in a database in advance. The present invention relates to a face recognition security method for recognizing whether or not a registered face is compared with a face area.

Secondly, as a conventional technology in an image processing device such as a camera, a technology for informing a user about a picture that is poorly exposed or in focus with respect to a picture stored after shooting is disclosed. For example, Korean Patent Laid-Open Publication No. 2004-0072173 relates to a control method of a digital camera for notifying that a shooting state is inappropriate. FIG. 1 is a detailed flowchart 100 illustrating an algorithm for checking exposure and shaking state according to the prior art. Is disclosed.

Referring to Figure 1 describes the features of the prior art.

First, a focus value for a subject is read (110). Next, when the focus value for the subject is smaller than the lower limit reference value, the external device may be affected by external factors such as image noise, and thus the reliability of the determination may be terminated (120). When the focus value for the subject is greater than the lower limit reference value, the lower limit value of the compressed file size set in response to the focus value of the subject read at the compression rate and the resolution set by the user is read (130). After reading the lower limit value YL of the compressed file size set corresponding to the focal point X of the read subject, the current compressed file size from the image data obtained from the shooting operation is smaller than the lower limit of the set compressed file size. If not, it is indicated that there may be problems of exposure and shaking (140,150).

Third, the LCD is rotated on the camera or the device equipped with the camera so that it can be seen from both front and back, the LCD can be installed both front and back so that it can be seen from both front and back, or the LCD is installed on the remote controller that communicates with the camera. The technology that allows you to view the current video input to the camera through the remote control LCD is shown. In addition, a technique of shooting and displaying a beam for an area entering the camera is also disclosed. As an example, Korean Patent No. 0662714 relates to a wireless communication terminal having a risk warning function using image processing and a method thereof, and FIG. 2 relates to a risk warning method using image processing in a wireless communication terminal according to the related art. An embodiment flow chart is disclosed.

Referring to Figure 2 describes the features of the prior art.

Here, an example of a hazard warning method when crossing a crosswalk will be described. At this time, the danger color is black outside the crosswalk boundary. First, when the operation / control device receives a signal for requesting the use of a danger warning function through an input device (keypad) (201), the operation / control device controls the camera device to periodically shoot an image to take an image as an image. Received (202). Thereafter, the operation / control device reads the image received from the camera device in the color information unit (pixel), searches for the dangerous color, and links the corresponding dangerous color information to the dangerous color information hash table (203). Thereafter, the operation / control device determines whether the frequency of the dangerous color information linked to the dangerous color information hash table is greater than or equal to the threshold (204). As a result of the determination 204, if the frequency of the dangerous color information is less than the threshold, the process proceeds to step "202" and receives the next image and repeats the image processing process. Meanwhile, if the frequency of the dangerous color information is greater than or equal to the threshold, the determination result 204 warns the user of the danger by judging as a dangerous situation (205). Meanwhile, the operation / control device may process a plurality of images to determine a dangerous situation based on a change amount of dangerous color information linked to a plurality of dangerous color information hash tables.

Referring to the problems of the prior art in detail as follows.

There are many techniques for thinking that there is no way to take a picture by self-taking even without a person taking a conventional camera. Two LCDs, a technology that allows you to view video from the camera image sensor through the LCD on the remote control. The technology in which the LCD of the camera is rotated is widely used as a real product. However, LCD rotation technology has many problems in terms of hardware and software at the time of development, and because the size of the camera is inevitably large, it is not efficient in terms of external design. In particular, as LCDs are becoming larger these days, more and more problems are likely to be caused.

The LCD is mounted on the remote controller that communicates with the camera so that the image inputted to the camera can be viewed during long distance self shot, but it is inconvenient for short distance self shot. For example, the most common way to shoot young people these days is to use the angle of a tripod, such as using a tripod to shoot only two heads at a very close distance. It can be very inconvenient to operate.

In the case of a folder mobile phone, when taking a self-portrait through an external LCD, users are shown an image image input through a sensor. However, due to the limitation of the external LCD size of the mobile phone, it is difficult to see the exact image state and has a disadvantage of not matching the actual incoming video.

Currently, most cameras do not provide LCD rotation or a remote controller equipped with an LCD, so the LCD installed on the opposite side of the lens cannot be viewed, so that the self-shooting is performed without the actual image being displayed. The problem at this time is that either side can escape, regardless of the number of people.

Lastly, among the conventional techniques, a technique for alarming information such as underexposure or focus error of photographing is not information at the time of photographing, but information obtained after capturing a photograph, so check, retake, verify, and retake There is a problem that it should be done, and this technique has a disadvantage in that it does not give any information about the error of the composition of the picture, especially about the setting of the area centered on the person.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a method for providing a specific portion of an image detection and alarm function in an image device.

Another object is to provide an imaging apparatus characterized by performing a method of providing a function of detecting and alarming a specific portion of an image in the imaging apparatus.

Still another object is to provide a computer readable recording medium having recorded thereon a program for executing on a computer a method of providing a function of detecting and alarming a specific portion of an image in an image device.

According to the first aspect of the imaging apparatus according to the present invention for solving the above problems, the present invention provides a method for providing a specific portion of the image detection and alarm function in the imaging apparatus, by using a specific key A self-mode entry step of entering a mode and receiving a number of users to be photographed; An area display step of displaying a default detection area using a GUI; An editing mode step of editing the detection area using a menu key; An area determining step of determining a detection area using an OK key when the area to be edited is determined in the edit mode step; An image detection step of performing face detection by pressing the shutter button halfway; Determining whether the face detection part enters the set detection area and displaying the result to the user through a warning sound and an LED so as to include the number of users to be photographed. It is a method to provide partial detection and alarm function.

Preferably, the self-mode entering step is a process of entering a self mode by using a menu OSD (On Screen Display) or Myself mode key, and when entering the self mode, a few people to the user by using the GUI And receiving an input of the number of people to be photographed by the user.

Preferably, the area display step is characterized by displaying the default detection area by interlocking the UI (User Interface) and the key.

Preferably, the editing mode step includes entering a detection area editing mode by using a hot key or a menu key to enter an editing mode, determining which key is input, and according to the determination result. And a step of moving, enlarging or reducing the detection area, and repeating the determination of which key is continuously inputted before pressing the OK key when the user presses Yes when the user is asked whether to continue. .

Preferably, the step of determining the area is to complete the detection area setting and to determine the detection area if the user presses No when the user is asked to continue or when the OK key is input when the user is asked which key is input. And displaying the determined detection area through a graphical user interface (GUI).

Preferably, the image detecting step is characterized in that the face detection is performed halfway after the determined detection area is displayed.

Preferably, the photographing preparation step includes an area determination process for determining whether the face detection portion enters the set detection area, and, if it is determined that the face detection portion does not enter the set detection area, which direction of the area boundary is determined. If the subject moves according to the red display of the LED, in the case of self-shooting where the user is determined to be out of a detection signal, a warning sound is notified through the speaker terminal, and the LED is used to indicate that the user is out of the detection area. Performing the area determination process of determining whether the face detection part is within the detection range, and if it is determined that the face detection part enters the set detection area, including an OK process of informing that the speaker and the LED are within the area range. It features.

Preferably, the NG process is an Up display process in which the Up direction LED (Lamp) is displayed in red with a warning sound if it goes out in the up direction, and a Down direction LED (Lamp) with a warning sound if it goes out in the down direction. Down indication process to display red in the left direction, Left indication process to display the left direction LED (Lamp) with a red beep if it goes out to the left direction, and Right direction LED (Lamp) together with a warning sound if it goes out to the right It characterized in that it comprises a Right marking process for displaying in red.

Preferably, the OK process includes generating a sound that can be identified as OK through a speaker terminal, and displaying a green light on LEDs attached to four directions.

Preferably, the present invention is characterized in that it further comprises the step of ending after performing the shooting operation with the shutter.

Preferably, the imaging device is one of digital devices with a camera function.

According to a second aspect of the imaging apparatus according to the present invention for solving the above problems, the present invention provides an imaging apparatus characterized by performing a method for providing a specific portion detection and alarm function of an image in the imaging apparatus. will be.

Further, according to a third aspect of the imaging apparatus according to the present invention for solving the above problems, the present invention provides a computer having a program for executing a method for executing a method for detecting a specific portion of an image and providing an alarm function in an imaging apparatus on a computer. To provide a recording medium that can be read by.

Hereinafter, preferred embodiments of the present invention will be described in detail.

The present invention intends to provide information to the user at the moment of shooting, not a method of providing information after shooting and re-shooting. In this case, the purpose of the self-shooting is to induce all the people to be taken into the captured image area. First, it provides so that the user can set the desired area through the UI (User Interface). In addition, since self-shooting is not a background but a person shooting, a technology of determining whether or not a face of a person to be photographed is properly detected in an area by using face detection technology is used. By determining the NG and notifying the user of the result, all faces of the desired person enter the preset area during self-shooting. In this case, the voice data is used as a technology for notifying OK / NG. If it is out of the detection range, an alarm will sound through the speaker. At this time, the larger the deviation range is to give the alarm sound of the speaker several times, to help the user to distinguish a lot or a little deviation from the detection range, the more the deviation can be louder. In addition, it is difficult for the user to know in which part the NG occurred only by the alarm sound, so as to inform in which direction the error occurred as a separate device. As a separate device, LEDs are installed in four directions (up, down, left, and right) of the camera body to generate green light in the OK direction and red light in the NG direction. The position of the light direction is adjusted to allow the user to shoot in a condition that satisfies all OK.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a flowchart illustrating a method for providing a specific portion detection and alarm function in the image device according to the present invention, and FIGS. 4A to 4C are views of the image device for performing the specific portion detection and alarm function according to the present invention. 5A to 5C are block diagrams showing a process of operation according to a flowchart illustrating a method for providing a specific portion detection and alarm function in the image device according to FIG. 3. to be.

Referring to FIGS. 3 and 5A through 5C, the first embodiment of the present invention may be divided into the following six steps.

(1) entering a self mode;

(2) displaying a Default Detection area;

(3) detection area edit mode step;

(4) detection area determination step;

(5) performing face detection;

(6) determining an image performance result in the detection area;

(6-1) if OK is determined;

(6-2) NG decision;

The six steps will be described in detail with reference to the flowchart of FIG. 3.

1) entering the self mode; Enter the self mode (S400). Use the menu OSD (On Screen Display) or Myself mode key to enter. When entering Myself mode, use the GUI to ask the user how many people to shoot. In this case, the user inputs the number of people to be photographed (301).

2) displaying the Default Detection area; The default detection area is displayed by interlocking the UI and the key (402).

3) Detection area edit mode step; Enters the detection area edit mode. Use Hot Key or menu key to enter edit mode. Determine which key is entered. According to the determination result, the detection area is moved, enlarged and reduced. As a result of judgment, if Up / Down / Left / Right key is input, Up key moves the detection area up, Down key moves the detection area down, Left key moves the detection area to the left, Right The key moves the detection area to the right (303). As a result of determination, if the Tele / Wide key is input, the Tele key enlarges the detection area and the Wide key reduces the detection area (304). If you are asked to continue, pressing Yes repeats which key is pressed until the OK key is pressed.

4) detection area confirmation step; If the user is asked to continue, No is pressed, or if the OK key is input when the user is asked which key is input, the detection area setting is completed. Accordingly, the detection area is determined, and the determined detection area is displayed through the GUI (305).

5) performing face detection; After the determined detection area is displayed, face detection is performed, and the face detection is performed at half shutter (406).

6) determining an image performance result in the detection area; Finally, the result of performing the image in the detection area is determined.

6-1) NG decision; It is determined whether the face detection part enters the set detection area. If it is determined that the face detection portion does not enter the set detection area, it is determined in which direction of the area boundary. If it is determined that the deviation, the warning sound is notified through the speaker terminal (407). Next, NG processing is performed using LEDs. If it is out of the upward direction, the up direction LED (Lamp) will be displayed in red with a warning sound. If it goes down, the down direction LED (Lamp) will be displayed in red with a warning sound. If it is out of the left direction, the left direction LED (Lamp) will be displayed in red with a warning sound. If the deviation to the right direction, the right direction LED (Lamp) is displayed in red with a warning sound (408). The user moves the camera according to the red indication of the LED (409).

6-2) if OK is determined; In the case of self-shooting where the user becomes the subject, if the subject moves according to the red display of the LED, it is determined whether the face detection part is within the detection range, and if it is determined that the face detection part enters the set detection area, the OK process is performed. Will be performed. That is, a sound that can be identified as OK is generated through the speaker terminal. In addition, the LED (Lamp) attached to the four directions are displayed in green (410). Then, after performing the shooting operation with the shutter, the method of the present invention is terminated.

4A to 4C are block diagrams illustrating the operational connection relationship between components of an image apparatus for performing a specific portion detection and alarm function according to the present invention, and include steps 400 to 410 including the steps in FIG. The whole process is shown alternately in front and rear of the imaging device.

5A to 5C are block diagrams illustrating a process according to a flowchart illustrating a method for providing a specific portion detection and alarm function in the image device according to FIG. 3, and FIGS. 5A to 5C are images according to FIG. 3. The process according to the flowchart illustrating a method for providing a specific portion detection and alarm function in the device is shown in the rear portion of the image device.

4A to 4C and 5A to 5C are the same as the description of the flowchart of FIG. 3, and thus detailed descriptions thereof are omitted here.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

The image device of the present invention configured as described above informs the direction away from the user when all of the face detection parts are not included in the area set in the self-shooting mode. It has the effect of coming in.

In addition, the imaging apparatus of the present invention is one of digital devices, and various cameras such as camcorders and digital cameras, various communication devices such as mobile phones equipped with camera functions, and various convergence devices such as MP3, PMP, and navigation with camera functions. The effect is that it is applicable to.

Claims (13)

A method of providing a detection and alarm function of a specific portion of an image in an imaging device, Entering a self mode of the camera using a specific key and receiving a self mode entry step of receiving a number of users to be photographed; An area display step of displaying a default detection area using a graphical user interface (GUI); An editing mode step of editing the detection area using a menu key; An area determining step of determining a detection area using an OK key when the area to be edited is determined in the edit mode step; An image detection step of performing face detection by pressing the shutter button halfway; Determining whether or not the face detection portion enters the set detection area, and displays the result to the user through the warning sound and the LED to include all the number of users to shoot; How to provide specific part detection and alarm function. The method of claim 1, wherein the self-mode entering step, Entering the self mode using the menu OSD (On Screen Display) or Myself mode key, When entering the self mode, using the GUI to ask the user how many people to shoot, A method for detecting a specific portion of an image and providing an alarm function, comprising: receiving a number of people to be photographed by a user. The method of claim 1, wherein the area display step, A method for detecting a specific portion of an image and providing an alarm function in an image device, characterized by displaying a default detection area by interlocking a key with a user interface (UI). The method of claim 1, wherein the editing mode step, Entering the edit mode of the detection area using the hot key or the menu key to enter the edit mode, Judging which key is entered, Moving, enlarging or reducing the detection area according to the determination result; And in the situation where the user is asked whether to continue, repeating which key is pressed until the OK key is pressed when Yes is pressed. The method of claim 1, wherein the area determining step comprises: If you press No when you are asked to continue, or when the OK key is entered when you are asked which key is entered, the process of completing the detection area setting is completed; And determining a detection area and displaying the determined detection area through a graphical user interface (GUI). The method of claim 1, wherein the image detection step, And performing face detection half a shutter after the determined detection area is displayed. The method of claim 1, wherein the photographing preparation step, An area judging process for judging whether or not the face detection part enters the set detection area; If it is determined that the face detection part does not enter the set detection area, it is determined which direction of the area boundary is left, and a warning sound is notified through the speaker terminal, and the NG process of informing that the detection area is out of the detection area using an LED; In the case of self-shooting where the user becomes the subject, when the subject moves according to the red display of the LED, the area determining process of determining whether the face detection part is within the detection range is performed, and if the face detection part enters the set detection area. And if it is determined, an OK process indicating that the speaker and the LED have entered the area range. The method of claim 7, wherein the NG process, If the up direction is off, the Up indication process of displaying the up direction LED (Lamp) in red with a warning sound, If out of the down direction, the down indication process of displaying the down direction LED (Lamp) in red with a warning sound, If the left direction is left, the left display process of displaying the left direction LED (Lamp) in red with a warning sound, And a right display process of displaying a right direction LED (Lamp) in red together with a warning sound if the vehicle deviates to the right direction. The method of claim 7, wherein the OK process, Generating a sound that can be identified as OK through the speaker terminal; And displaying a green light on the LEDs attached to the four directions. The method according to claim 1, And performing a shooting operation with a shutter and ending the shooting operation. The method according to claim 1, And said imaging device is one of digital devices with a camera function. 12. An imaging device as claimed in any one of the preceding claims, characterized in that the method is carried out. A computer-readable recording medium having recorded thereon a program for causing a computer to execute a method for providing a function of detecting and alarming a specific portion of an image in the imaging device according to any one of claims 1 to 11.

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