KR100657791B1 - Portable terminal having contrasting function about mutually different images and images contrast method using the same - Google Patents

Abstract

A mobile terminal having an image comparing function and a method for comparing images using the same are provided to easily provide a different portion and difference information of an object by comparing a target comparison image with a reference image. A comparing unit(160) compares a target comparison image with a reference image and analyzes a difference therebetween. A display unit(156) displays the reference image and the target comparison image, and displays the image difference comparison result information. A controller(110) selects the reference image and the target comparison image according to an inputted command, controls the comparing unit(160) to compare the target comparison image with the reference image, and displays the image difference comparison result information on the display unit(156).

Description

Portable terminal having contrasting function about mutually different images and Images Contrast Method using the same}

1 is a block diagram showing a portable terminal having an image comparison function according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a display example according to comparison between a reference image and a comparison image according to FIG. 1;

3 is a diagram illustrating an example of setting an image comparison item according to an embodiment of the present invention, displaying image comparison result information, and displaying a difference image according thereto

4 is a flowchart illustrating a method of displaying image comparison information of a reference image and a comparison image according to an exemplary embodiment of the present invention.

The present invention relates to a portable terminal having an image comparison function, and more particularly, to a portable terminal capable of comparing a reference image and a comparative image and providing information on the difference image, and an image comparison method using the same. .

In general, a portable terminal is an application including wireless communication while being carried by an individual such as a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smartphone, a next generation mobile communication terminal (IMT-2000), and a wireless LAN terminal. Refers to a terminal capable of implementing various functions using a program.

The portable terminal is configured to implement a corresponding function through various application programs such as a schedule management and a game as well as a voice and video call and a short message transmission service. In addition, the portable terminal has a camera function, and is configured to capture and store still images and videos like a digital camera. Accordingly, the portable terminal may have a function for editing the captured image data.

In general, a portable terminal has a function of storing image data received from a base station or transmitting acquired image data to a base station. The portable terminal also includes a camera for capturing an image and a display unit for displaying image data photographed from the camera. The camera may use a CCD or a CMOS sensor, and the display unit may use an LCD. In addition, with the miniaturization of the camera device, the device for capturing the image is becoming more and more miniaturized. The portable terminal may capture an image, display and store the moving image and a still image, and transmit the captured image screen to a base station.

In addition, as the display performance of the portable terminal has evolved day by day, it is possible to express color image data. For this reason, when using the black and white display unit, the portable terminal displaying the date and time or the like may display a picture or a simple animation on the background screen of the standby mode, or a still or moving picture photographed through a portable terminal equipped with a camera. It became.

On the other hand, a portable terminal equipped with a camera is also used to check the user's appearance by checking the hairstyle, facial makeup, skin condition, the presence of foreign objects in the teeth. In this case, only the status of the current user can be checked, and the previous status of the user can only be checked through the previously taken picture. Accordingly, the user can only visually compare the previous picture with the current picture in order to check how the current state of the user has changed compared to the previous state. This not only makes it impossible to grasp the previous and the current state more accurately, but also has the inconvenience of comparing pictures alternately in order to check such a change of state.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a portable terminal and an image comparison method using the same, which can easily provide a result by comparing the previous state and the current state with respect to the same object more simply. have.

Another object of the present invention is to provide a portable terminal capable of more easily providing a site where a difference occurs with respect to the same object and difference information about the same by comparing the difference of the comparison image with which the reference image is a reference image and using the same. The present invention provides a method for comparing images.

According to an embodiment of the present invention, in the portable terminal provided with a camera, a storage unit for storing a reference image to be a comparison reference image and a comparison image to be compared with the reference image; A comparison unit comparing and analyzing image differences of the comparison image based on the reference image; A display unit which displays the reference image and the comparison image and displays the image difference comparison result information; And selecting the reference image and the comparison image according to an input command, and controlling the comparison unit to perform image difference comparison with respect to the comparison image based on the reference image according to the input comparison command. It is achieved by the picture taking device including a control unit for displaying the difference comparison result information through the display unit.

The reference image and the comparison image are images of the same object. At least one of the reference image and the comparison image is an image captured by the provided camera.

The image difference comparison result information is information on which a difference site is displayed according to the image difference comparison result for the comparison image. The controller displays a comparison image displaying the difference portion through the display unit.

The image difference comparison result information is difference information on a difference part according to the image difference comparison result with respect to the comparison image. The controller displays difference information on the difference portion through the display unit.

Difference information for the difference site is represented by letters.

An image comparison item between the reference image and the comparison image is at least one item of a makeup state, a skin state, and a tooth state of a face.

The storage unit stores image difference comparison result information of the comparison unit.

On the other hand, the above object is, according to an embodiment of the present invention, in the image comparison method using a photographing apparatus, when the image comparison mode is performed, selecting a comparison image to be compared; Selecting a reference image as a reference for comparison with the comparison image; Comparing and analyzing image differences of the comparison image based on the reference image; And displaying the result information according to the image difference comparison through a user interface.

The image comparison method according to an embodiment of the present invention further includes setting a detailed comparison item for the comparison object after the comparing image selection step. Accordingly, in the step of selecting a reference image, a reference image that is an image of the same object contrasted with the comparison image is selected corresponding to the detailed comparison item.

The image difference comparison result information is information on which a difference site is displayed according to the image difference comparison result for the comparison image. Accordingly, in the displaying step, a comparison image displaying the difference portion is displayed.

The image difference comparison result information is difference information on a difference part according to the image difference comparison result with respect to the comparison image. Accordingly, in the displaying step, difference information on the difference portion is displayed.

Difference information for the difference site is represented by letters. The detailed comparison item is at least one of a cosmetic condition, a skin condition, and a dental condition of a face.

The image comparison method according to an embodiment of the present invention further includes storing the displayed image difference comparison result information.

According to the present invention, after storing a reference image and selecting a comparison image that is a target image for comparison and setting a comparison item, the difference between the reference image and the comparison image is compared and analyzed corresponding to the set comparison item, and the comparison result information and comparison By displaying the difference part according to the result on the comparison image and displaying it on the display unit 156 which is a user interface, the difference between the image selected as the reference and the image selected for comparison can be more easily identified.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram illustrating a portable terminal having an image comparison function according to an exemplary embodiment of the present invention.

As shown, the portable terminal includes a control unit 110, a data processing unit 120, a wireless communication unit 125, an audio processing unit 130, a key input unit 140, a camera unit 152, an image processing unit 154, and a display unit. 156, a comparator 160, and a storage 170.

The controller 110 performs an overall control operation of the portable terminal. According to an embodiment of the present invention, the controller 110 controls the comparison of the difference image between the captured image (the comparison image) and the stored image (the reference image) and the display of the difference information according to the comparison result. Here, the difference comparison for each image may be, for example, a face, a make-up state, a skin state of a bare face, a tooth state, and the like. However, the comparison target area is applicable to all objects corresponding to all images that can be photographed.

In the present embodiment, the makeup state comparison may be performed by comparing the hue, saturation, and contrast of each face of the face with respect to the previously stored makeup face image (reference image) and the photographed makeup face image (comparative image). After displaying the corresponding region where the difference occurs in the comparison image, the comparison result information is provided to the user. In the present embodiment, the comparison of skin conditions of the bare face is performed by comparing blemishes, acne, and wrinkles with respect to each part of the face with respect to previously stored bare face images (reference images) and photographed bare face images (comparative images). After displaying the corresponding region where the difference occurs in the comparison image, the comparison result information is provided to the user. In addition, in the present embodiment, the comparison of the tooth state compares and analyzes the discovery of foreign matters with respect to the pre-stored tooth image (reference image) and the photographed tooth image (comparative image), and displays the corresponding site where the difference occurs in the comparison image. After that, the comparison result information is provided to the user.

The data processor 120 includes a transmission module for encoding and modulating a signal for transmission through a wireless channel, and a reception module for demodulating and decoding a signal received through a wireless channel. In addition, the data processor 120 demodulates / decodes the received data and provides the received data to the controller 110. In addition, the data processor 120 may modulate / encode data for transmission under the control of the controller 110 and output the data to the wireless communication unit 125.

The wireless communication unit 125 performs a function of transmitting and receiving corresponding data for wireless communication of the portable terminal. The wireless communication unit 125 may include an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The wireless communication unit 125 may receive data through a wireless channel and output the data to the data processing unit 120, and receive data output from the data processing unit 120 and transmit the data through the wireless channel.

The audio processor 130 may be configured of a codec (Coder / Decoder), and the codec may include a data codec for processing packet data and an audio codec for processing an audio signal such as voice. During a voice call of the portable terminal, the audio processor 130 converts the digital audio signal received by the data processor 120 into an analog signal through an audio codec and reproduces the same through a speaker. In addition, the audio processor 130 may convert the analog audio signal input from the microphone into a digital audio signal through an audio codec and provide the same to the data processor 120 through the controller 110.

The key input unit 140 includes a plurality of keys for inputting numeric and text information and control keys for controlling the operation of the portable terminal. The key input unit 140 according to an exemplary embodiment of the present invention may include predetermined keys for controlling a camera function and a comparison function between images of the portable terminal through the controller 110.

The camera unit 152 photographs an image photographed through a lens, and includes a camera sensor that converts the photographed optical signal into an electrical signal, and a signal processor that converts the analog image signal photographed from the camera sensor into digital data. In this case, a CCD (Charge Coupled Device) sensor is generally applied to the camera sensor, and the signal processor may be implemented by a digital signal processor (DSP). In addition, the camera sensor and the signal processor may be implemented separately or integrally.

The image processor 154 performs a function of generating screen data for displaying an image signal output from the camera unit 152. The image processor 154 processes the image signal output from the camera unit 152 on a frame basis, and outputs frame image data corresponding to the display characteristics and the size of the display unit 156. In addition, the image processing unit 154 includes an image codec and performs a function of compressing the frame image data displayed on the display unit 156 in a set manner or restoring the compressed frame image data to the original frame image data. . The image codec may be a JPEG codec, an MPEG codec, a wavelet codec, or the like. In addition, the image processing unit 154 may include an OSD function, and in this case, the image processing unit 154 outputs display data for display on a predetermined area of the screen under the control of the control unit 110. can do.

The display unit 156 displays the image data output from the image processor 154 on a screen and displays the display data output from the controller 110. The display unit 156 may be a liquid crystal display (LCD). In this case, the display unit 156 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD is implemented using a touch screen method, the LCD may operate as an input unit. According to an exemplary embodiment of the present invention, the display unit 156 may display information for comparing the comparison image with the reference image, and the comparison result image and information.

The comparator 160 compares respective image component values between the selected comparison target image and the reference image under the control of the controller 110, and provides the result information to the controller 110. In this case, the image component includes hue, saturation, and contrast for the corresponding image. When the comparison unit 160 compares the difference between the reference image and the comparison image of the same object, the comparison unit 160 compares the mutual images corresponding to the comparison item set by the controller 110. Here, the comparison item may be, for example, a cosmetic condition, a skin condition, a tooth condition, and the like, and may be an item of comparison for any image.

Accordingly, the controller 110 displays the difference region according to the comparison result on the comparison image according to the comparison result of the comparison unit 160 and displays the difference information through the display unit 156.

The storage unit 170 stores programs that can be executed through the portable terminal and data according to a result of the execution. The storage unit 170 stores image data photographed through the camera unit 152. In addition, according to an exemplary embodiment of the present invention, the storage unit 170 includes a reference image storage unit 172, a comparison image storage unit 174, and a comparison result storage unit 176.

Here, the reference image storage unit 172 stores a reference image set according to a user's selection of images captured by the camera unit 152 or provided from an external device. In this case, the reference image may be selected as an arbitrary image by the user to perform the comparison mode of the image, and may be changed at any time by the user. Preferably, the reference image is an image in which the object maintains the best state among images of the same object. For example, when the subject is a makeup face image, the reference image is a face image in which makeup is best, and when the subject is a bare face image, the reference image is a bare face image with the best skin, and the subject is a tooth. In the case of an image, the reference image may be an image of a state where the teeth are clean.

The comparison image storage unit 174 stores a comparison image for obtaining difference information through comparison with the reference image according to a user's selection among images received from the camera unit 152 or provided from an external device. In this case, the reference image may be later set as the comparison image, and the comparison image may later be set as the reference image. The comparison result storage unit 176 stores the comparison result image and information according to the comparison result of the comparison unit 160.

Therefore, after the reference image is stored, the comparison image that is the target image for comparison is selected, the comparison item is set, and the difference between the reference image and the comparison image is compared and analyzed in response to the set comparison item. By displaying the difference portion on the comparison image and displaying it on the display unit 156 which is a user interface, the difference between the image selected as the reference and the image selected for comparison can be more easily identified.

FIG. 2 is a diagram illustrating a display example according to comparison between a reference image and a comparison image according to FIG. 1.

As shown in the drawing, the reference image 173 stored in the reference image storage unit 172 of the storage unit 170 stores a makeup face 173a, a bare face 173b, and a tooth 173c image. It can be seen that. In addition, a comparison image 175 is stored in the comparison image storage unit 174 of the storage unit 170.

In the present embodiment, when an image corresponding to a comparison item is selected from the reference image 173, the controller 110 controls the comparison unit 160 to compare the selected reference image with the comparison image 175. For example, when the makeup state is selected as the comparison item and the face image 173a that is makeup as the reference image is selected, the controller 110 compares the makeup face image 173a and the comparison image 175 to compare the comparison unit ( 160). When the skin condition is selected as the comparison item and the bare face image 173b is selected as the reference image, the controller 110 controls the comparator 160 to compare the bare face image 173b and the comparison image 175. When the tooth state is selected as the comparison item and the tooth image 173c is selected as the reference image, the controller 110 controls the comparator 160 to compare the tooth image 173c and the comparison image 175.

Accordingly, the comparison unit 160 provides the controller 110 with an image comparison result of the corresponding image of the reference image 173 and the comparison image 175. The controller 110 displays the image comparison result image 177 of the comparator 160 through the display unit 156. According to the comparison result image 177 illustrated, the controller 110 displays a portion where a difference between the corresponding image of the reference image 173 and the comparison image 175 occurs and displays it on the display unit 156. In this embodiment, it can be seen that the eye region 178 and the lip region 179 are marked as a region where a difference occurs. In addition, the controller 110 may display the comparison result information through the display unit 156 in text.

3 is a diagram illustrating an example of setting an image comparison item and displaying image comparison result information and a difference image according to an embodiment of the present invention.

As illustrated, when the image comparison mode is performed, the controller 110 displays a comparison image on the display unit 156 as shown in FIG. 3A, and selects an item to be compared with the image as shown in FIG. 3B. Is displayed.

When the tooth state is selected among the comparison items as shown in FIG. 3B, the controller 110 selects a reference image for comparing the tooth states according to an input command and displays the reference image as shown in FIG. 3C through the display unit 156. .

When an image comparison command is input based on the selected comparison image and the reference image, the controller 110 controls the comparison unit 160 to compare and analyze the difference between the comparison image and the reference image. When the image comparison is completed through the comparison unit 160, the controller 110 displays the comparison result image on which the difference region is displayed through the display unit 156. At this time, the control unit 110 displays the comparison result information in the lower portion of the display unit 156 in text. In the figure, the result of the comparison shows that the information found in the tooth.

4 is a flowchart illustrating a method of displaying image comparison information of a reference image and a comparison image according to an exemplary embodiment of the present invention.

First, the controller 110 selects a reference image from the camera unit 152 or image data received from the outside and stores the selected reference image in the storage unit 170 (S110). The controller 110 controls the camera unit 152 according to the input command to capture and store an image (S120).

When the image comparison mode is performed, the controller 110 selects a comparison image that is a target image for comparison among images captured and stored according to an input command (S130). The controller 110 displays the comparison items for image comparison through the display unit 156 and selects and sets the comparison items according to a command input thereto (S140).

Thereafter, the controller 110 selects a reference image for setting a reference image as a reference image corresponding to the comparison image selected in step S130 (S150). Thereafter, when an image comparison command is input, the controller 110 controls the comparison unit 160 to perform a comparative analysis between the comparison image selected in step S130 and the reference image selected in step S150 (S160).

According to an image comparison result, the controller 110 displays a difference portion on the comparison image and displays it on the display unit 156 and displays the image comparison result character on the display unit 156 (S170). When the image comparison is completed, the controller 110 determines whether to perform the image comparison again (S180). When an image comparison redo command is input, the controller 110 performs steps S120 to S170. If it is determined that an image comparison redo command is not input, the controller 110 ends the image comparison mode.

The present invention described above mainly describes the comparison between the reference image and the comparative image using a portable terminal equipped with a photographing function and displaying the difference information. However, the present invention is not limited to the portable terminal. The same applies to any electronic device equipped with a function.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications and equivalents without departing from the gist of the present invention attached to the claims. Other implementations may be possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

According to the present invention, after storing a reference image and selecting a comparison image that is a target image for comparison and setting a comparison item, the difference between the reference image and the comparison image is compared and analyzed corresponding to the set comparison item, and the comparison result information and comparison By displaying the difference region according to the result on the comparison image and displaying it through the user interface, it is possible to more easily check the difference between the image selected as the reference and the image selected for comparison. By using these characteristics, the difference image of the comparison image with respect to the reference image such as before and after makeup, the makeup state of the current face based on the best state, the current skin state based on the skin state of the best state, and the occurrence of foreign substances on the teeth can be viewed. It can be easily confirmed.

Claims (16)

In the photographing apparatus, A storage unit for storing a reference image as a comparison reference of images and a comparison image as a comparison target with the reference image; A comparison unit comparing and analyzing image differences of the comparison image based on the reference image; A display unit which displays the reference image and the comparison image and displays the image difference comparison result information; And Selecting the reference image and the comparison image according to an input command, and controlling the comparison unit to perform an image difference comparison with respect to the comparison image based on the reference image according to an input comparison command, and the image difference of the comparison unit And a control unit for displaying the comparison result information through the display unit. The method of claim 1, The reference image and the comparison image is a photographing device, characterized in that the image for the same object. The method of claim 2, At least one of the reference image and the comparison image is a photographing device, characterized in that the image taken by the provided camera. The method of claim 1, The image difference comparison result information is information on which a difference site is displayed according to the image difference comparison result for the comparison image. The control unit is a picture taking device, characterized in that for displaying the comparison image displaying the difference portion through the display. The method of claim 4, wherein The image difference comparison result information is difference information on a difference part according to the image difference comparison result with respect to the comparison image. And the control unit displays difference information on the difference portion through the display unit. The method of claim 5, The difference information for the difference region is a picture taking device, characterized in that displayed by a letter. The method of claim 1, The image comparison item between the reference image and the comparison image is at least one item of a cosmetic state, a skin state, and a tooth state of the face. The method of claim 1, And the storage unit stores image difference comparison result information of the comparison unit. In the image comparison method using a photographing device, When the image comparison mode is performed, selecting a comparison image to be compared; Selecting a reference image as a reference for comparison with the comparison image; Comparing and analyzing image differences of the comparison image based on the reference image; And And displaying the result information according to the image difference comparison through a user interface. The method of claim 9, After the comparison image selection step, and further comprising setting a detailed comparison item for the comparison target, The reference image selecting step of selecting a reference image, characterized in that for selecting the reference image that is the image of the same object contrasted with the comparison image corresponding to the detailed comparison item. The method of claim 10, The image difference comparison result information is information on which a difference site is displayed according to the image difference comparison result for the comparison image. And displaying the comparison image in which the difference portion is displayed. The method of claim 11, The image difference comparison result information is difference information on a difference part according to the image difference comparison result with respect to the comparison image. And in the displaying step, difference information on the difference portion is displayed. The method of claim 12, The difference information for the difference region is characterized in that the image is displayed by a character. The method of claim 10, The detail comparison item is at least one of a cosmetic condition, a skin condition, and a dental condition of the face. The method of claim 9, And storing the displayed image difference comparison result information. In a portable terminal equipped with a camera, A storage unit for storing a reference image as a comparison reference of images and a comparison image as a comparison target with the reference image; A comparison unit comparing and analyzing image differences of the comparison image based on the reference image; A display unit which displays the reference image and the comparison image and displays the image difference comparison result information; And Selecting the reference image and the comparison image according to an input command, and controlling the comparison unit to perform an image difference comparison with respect to the comparison image based on the reference image according to an input comparison command, and the image difference of the comparison unit And a control unit for displaying the comparison result information through the display unit.

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