JP7447538B2 - Photographed image evaluation system - Google Patents

Description

The present invention relates to a photographed image evaluation system.

At the photo studio, you can rent out costumes such as kimonos and dresses, and use a special photo set to take commemorative photos. The photo studio is equipped with photo sets tailored to various themes, and customers are asked to stand in front of the sets and take photos. The photographer takes multiple shots while giving detailed instructions on poses.

After shooting, the images are displayed on the display, and the customer selects the image of their choice. There are a large number of captured images, each with only slight differences, making it difficult for the customer to select a captured image.

Japanese Patent Application Publication No. 2005-310103 Japanese Patent Application Publication No. 2005-274956 Japanese Patent Application Publication No. 2003-270714

The present invention has been made in view of the above-mentioned conventional situation, and an object thereof is to provide a photographed image evaluation system that evaluates a plurality of photographed images generated by photographing a subject multiple times using a photographing set. do.

A photographed image evaluation system according to the present invention includes: an image acquisition section that acquires a plurality of photographed images from a photographing device that has photographed a user together with a photographing set; a height input section that receives an input of the height of the user; and a height input section that uses the photographing set. a storage unit in which parameters indicating recommended face orientations of subjects according to their heights are registered; analysis of the parameters corresponding to the user's height; and analysis of the user's face orientations in the photographed images; and a display processing section that displays the plurality of captured images on a display device in an order based on the evaluation results by the evaluation section.

In the captured image evaluation system according to one aspect of the present invention, the parameter and the analysis value include at least one of a pitch angle, a yaw angle, and a roll angle of the face.

In the captured image evaluation system according to one aspect of the present invention, the evaluation unit calculates a residual sum of squares between the parameter and the analysis value, and the display processing unit selects the plurality of captured images in order of decreasing residual sum of squares. An image is displayed on the display device.

According to the present invention, it is possible to evaluate a plurality of photographed images generated by photographing a subject a plurality of times using a photographing set. By referring to the evaluation results, it becomes easier to select a captured image.

1 is a schematic diagram of a photographed image evaluation system according to an embodiment of the present invention. FIG. 1 is a block configuration diagram of a photographed image evaluation system. 3 is a flowchart illustrating a photographed image evaluation method. FIG. 3 is a diagram showing an example of an image upload screen. FIG. 3 is a diagram showing an example of an image upload screen. FIG. 3 is a diagram showing an example of image analysis. It is a figure showing an example of an image viewing screen. It is a figure showing an example of an image viewing screen.

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 1, the photographed image evaluation system according to the embodiment of the present invention includes a control device 1, a display device 2, and a server device 3, and is used to evaluate images photographed in a photo studio or the like. The photo studio is equipped with many sets and costumes for photo shoots. The user (subject) K selects the photographing set 5 that he wishes to photograph, the costume he wishes to wear, and the like. The cameraman C makes the user K pose in front of the photographing set 5, and photographs the user with a photographing device 4 such as a digital camera.

Shooting set 5 has various themes such as Shichi-Go-San, Doll's Festival, Western-style houses, and Japanese-style rooms.

Each shooting set 5 has a suitable face orientation such as ``looking down a little'' or ``looking up into the distance,'' and photographer C takes multiple shots while giving detailed pose instructions to get a good shot. .

The photographed image evaluation system evaluates a plurality of images photographed by the photographing device 4 based on whether the orientation of the subject's face is in a direction that matches the photographing set 5, and presents the results to the user K. User K can refer to the evaluation results by the photographed image evaluation system when selecting an image from a plurality of photographed images for which data or print photographs are to be purchased.

As shown in FIG. 2, the control device 1 is a computer including a CPU (not shown), a storage section 10 (RAM, HDD, SSD, etc.), a height input section 11, an image acquisition section 12, an image transmission section 13 , an analysis result receiving section 14, an evaluation section 15, and a display processing section 16. The server device 3 is a computer that includes a CPU and a storage unit (both not shown), is communicably connected to the control device 1, and has the functions of an image reception unit 31, an image analysis unit 32, and an analysis result transmission unit 33. . The processing of each part of the control device 1 and the server device 3 will be explained along the flowchart shown in FIG. 3, which will be described later.

FIG. 3 is a flowchart illustrating a photographed image evaluation method. User K, who has visited the photo studio, selects a photography set for which he would like to take a photograph (step S1). At this time, you may rent costumes provided at the photo studio and wear them.

Cameraman C photographs user K together with photographing set 5 using photographing device 4 (step S2). For each photographic set 5, a suitable pose (expression, gesture, direction of the face) is determined in advance. The cameraman C takes pictures multiple times while instructing the user K to pose. The image acquisition unit 12 of the control device 1 acquires a plurality of photographed images from the photographing device 4.

When changing the photographing set 5 and continuing photographing (step S3_Yes), user K selects another set in the photo studio and performs photographing (steps S1, S2).

When photographing is to be completed (step S3_No), the staff of the photo studio (cameraman C) operates the control device 1 to upload the photographed image to the server device 3 for image analysis (step S4). For example, an upload screen as shown in FIG. 4 is displayed on the display device 2 connected to the control device 1. FIG. 4 shows an example in which user K took pictures in three sets.

When the upload button B1 is pressed using an input means such as a mouse or a touch panel, a screen for selecting an image to be uploaded is displayed. The staff selects an image for image analysis from among the photographed images taken into the control device 1 from the photographing device 4 and uploads it to the server device 3. For example, do not select an image that clearly does not look good, such as an image of someone with their eyes closed. The image transmitter 13 of the control device 1 transmits the selected image to the server device 3.

FIG. 5 shows the upload screen after uploading the captured images for each set. The staff inputs the name and height H of user K on the upload screen (step S5). The height input unit 11 of the control device 1 receives the input of user K's height.

The image receiving unit 3 of the server device 3 receives the photographed image from the control device 1. The image analysis unit 32 analyzes the captured image (step S6). In image analysis, the orientation of the face of a subject in a captured image is analyzed using rotation angles of three axes, yaw, pitch, and roll, as shown in FIG. 6, for example. The analysis result transmitting unit 33 transmits the analysis results of each photographed image to the control device 1. The analysis result receiving unit 14 of the control device 1 receives the analysis result from the server device 3.

Parameters of suitable (recommended) face orientations (yaw angle, pitch angle, roll angle) are registered in the storage unit 10 of the control device 1 for each photography set of the photo studio. Furthermore, since the preferred face orientation varies depending on the height of the subject, parameters for each height are registered. For example, parameters as shown in Table 1 below are registered.

This parameter is, for example, a value obtained by photographing a plurality of models of different heights while gradually changing the direction of their faces in advance, and analyzing the images that look good.

The evaluation unit 15 of the control device 1 evaluates each captured image based on the degree of similarity between the analysis result received from the server device 3 and the parameters registered in the storage unit 10 (step S7). For example, the evaluation unit 15 retrieves the parameter corresponding to the height input in step S5 from the storage unit 10, and calculates the residual sum of squares between the analysis results of yaw, pitch, and roll and the parameter as an evaluation value.

The evaluation unit 15 calculates an evaluation value for each photographed image. The smaller the evaluation value (residual sum of squares), the higher the degree of approximation, resulting in an image that is closer to the preferred facial orientation.

After calculating the evaluation value, a viewing screen as shown in FIG. 7 is displayed on the display device 2. When the staff member or user presses the viewing button B3 of the photographic set whose photos he/she wishes to check, the viewing screen is switched to the one shown in FIG. 8.

The display processing unit 16 of the control device 1 displays the thumbnail images of the captured images in order of decreasing evaluation value (in order of closest to the preferred facial orientation) in the display area R1. When a thumbnail image is selected, the display processing unit 16 enlarges and displays the selected image in the display area R2. The user views the captured images on the viewing screen and selects an image that he/she wishes to purchase as data or print (steps S8, S9).

Most of the images taken after being instructed to pose by photographer C look good, and there are only slight differences between them. According to the photographed image evaluation system according to the present embodiment, the photographed images are displayed as thumbnails in the order of evaluation, making it easier for the user to select a photographed image by referring to the evaluation results by the system.

In the above embodiment, an example has been described in which the server device 3 that analyzes the direction in which a subject in a photographed image is facing and the control device 1 that evaluates the photographed image are different computers, but one computer can perform the analysis and the control device 1 that evaluates the photographed image. You may also perform an evaluation.

In the above embodiment, an example was described in which the direction of the subject's face is evaluated using three angles: yaw angle, pitch angle, and roll angle. However, it is not necessary to use all three angles, and one or more may be used. Bye.

The present invention is not limited to the above-mentioned embodiments as they are, and in the implementation stage, the constituent elements can be modified and embodied without departing from the spirit of the invention. Moreover, various inventions can be formed by appropriately combining the plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiments. Furthermore, components of different embodiments may be combined as appropriate.

1 Control device 2 Display device 3 Server device 4 Photography device 5 Photography set

Claims (3)

an image acquisition unit that acquires a plurality of photographed images from a photographing device that photographed the user together with the photographing set;
a height input unit that accepts input of the user's height;
a storage unit in which parameters indicating recommended face orientations for different heights of subjects in photography using the photography set are registered;
an evaluation unit that evaluates the plurality of captured images based on the parameter corresponding to the user's height and an analysis value of the orientation of the user's face shown in the captured image;
a display processing unit that displays the plurality of captured images on a display device in an order based on the evaluation result by the evaluation unit;
A captured image evaluation system. The photographed image evaluation system according to claim 1, wherein the parameter and the analysis value include at least one of a pitch angle, a yaw angle, and a roll angle of the face. The evaluation unit calculates a residual sum of squares between the parameter and the analysis value,
3. The photographed image evaluation system according to claim 2, wherein the display processing unit displays the plurality of photographed images on the display device in descending order of the residual sum of squares.

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