JP5767301B2 - Pillow height determination device, method and program thereof - Google Patents

Description

  The present invention relates to a pillow height determination device, a method thereof, and a program thereof.

  Recently, it has been a pillow boom to choose the pillow that suits you, but it is difficult to choose the height of this pillow that suits you. Therefore, the conventional method for determining the pillow height is that the technician measures the position of the head and the position of the cervical vertebra with the calipers, determines the pillow height based on this, and is movable in the horizontal direction. A cervical vertebra measuring instrument comprising a plurality of bars is placed on the back of the subject, and the height from the back of the head to the cervical vertebra is measured, and the height of the pillow is determined based on the measured height.

No. 7-49364 Utility New Registration No. 3095282 Japanese Patent Laid-Open No. 10-168631

  However, the conventional method for determining the height of a pillow as described above requires skilled techniques and determines the height of the pillow only from the shape of the back of the head. There was a problem that it was not the height of the pillow.

  In view of the above problems, an object of the present invention is to provide a pillow height determining device, a method thereof, and a program that can easily determine the height of the pillow while considering the positions of the back and the buttocks.

  The present invention provides an acquisition unit that acquires a human image in which a lateral view of a subject is photographed, a position determination unit that determines the positions of the back, back, and buttocks of the subject in the human image, the back of the head and the back A first straight line calculation unit for calculating a first straight line connecting the back, a second straight line calculation unit for calculating a second straight line connecting the back and the buttocks, and a head where the first straight line and the second straight line intersect The pillow height determination device includes: an angle calculation unit that calculates an inclination angle; and a height calculation unit that determines the height of the pillow higher as the head inclination angle increases.

An embodiment of the present invention includes an acquisition unit that acquires a person image in which a side view of a subject standing straight is captured,
A position determining unit that determines the position of the back of the subject, the back, and the buttocks in the person image;
A first straight line calculation unit for calculating a first straight line connecting the back of the head and the back;
A second straight line calculating unit for calculating a second straight line connecting the back and the buttocks;
An angle calculator that calculates a head inclination angle θ at which the first straight line and the second straight line intersect;
A height calculation unit that determines the height of the pillow higher as the head tilt angle is larger;
I have a,
The position determining unit determines the positions of the occipital region, the back, and the buttock by moving position specifying marks respectively to the positions of the occipital region, the back, and the buttock of the subject in the person image. is there.

It is a block diagram of the pillow height determination apparatus which shows one Embodiment of this invention. It is a block diagram of this apparatus. It is a figure of the person picture which photoed the figure of a subject's side. It is a figure of a person image when determining positions, such as a test subject's back head. It is a figure of a person image when the 1st straight line and the 2nd straight line are determined. It is a figure of a person image when the 1st straight line and the 2nd straight line of other subjects are determined. Furthermore, it is a figure of a person image when the other subject's 1st straight line and 2nd straight line are determined. It is a figure of a person image when deciding bedding. It is a figure of a person image when a pillow and bedding are determined. It is a flowchart of the height determination apparatus of a pillow.

  A pillow height determining device (hereinafter simply referred to as “determining device”) 10 according to the present invention will be described below with reference to FIGS. The determination apparatus 10 of this embodiment is implement | achieved by the tablet terminal, for example.

(1) Configuration of Determination Device 10 A configuration of the determination device 10 will be described with reference to FIGS. 1 and 2.

  The determination device 10 can be realized by a tablet terminal as described above, and includes the control unit 12, the camera 14, the display unit 16, the touch panel 18, the storage unit 20, and the communication unit 36 as illustrated in FIG.

  The control unit 12 includes a CPU, and as illustrated in FIG. 2, the acquisition unit 40, the position determination unit 42, the first straight line calculation unit 44, the second straight line calculation unit 46, the angle calculation unit 48, the height calculation unit 50, and the bedding. An image generation unit 52 is included. These acquisition unit 40, position determination unit 42, first straight line calculation unit 44, second straight line calculation unit 46, angle calculation unit 48, height determination unit 50, and bedding image generation unit 52 are stored in the control unit 12 which is a computer. Realized by a pillow height determination program.

  The camera 14 is a CCD element provided on the back surface of the tablet terminal.

  The display unit 16 is a 10-inch liquid crystal display device provided on the surface of the tablet terminal, for example.

  The touch panel 18 is provided on the surface of the display unit 16.

  The storage unit 20 includes a memory, a list of images of high pillows and prices according to materials, a list of images of normal (height) pillows and prices according to materials, images of low pillows and prices according to materials. , A very low pillow image and a list of prices by material. The “high pillow” is, for example, 5 to 7 cm in height, the “ordinary pillow” is, for example, 3 to 5 cm in height, and the “low pillow” is, for example, 1 to 3 cm in height. The “low pillow” has a height of 1 cm or less, for example. The material of the pillow 2 is, for example, polyester cotton, soft pipe, or hard pipe.

  The communication unit 36 can perform data communication with a personal computer such as a server, another tablet terminal, a smartphone, a printer, and the like.

(2) Content of Each Unit 40 to 52 Next, the content of each unit 40 to 52 of the control unit 12 will be described with reference to FIG.

  The acquisition unit 40 acquires from the camera 14 a person image 24 in which a lateral view of the subject 1 standing straight by the camera 14 is displayed on the display unit 16.

  The position determination unit 42 determines five positions of the occipital region, cervical vertebra, back, waist, and buttocks of the subject 1 in the person image 24 acquired by the acquisition unit 40.

  The first straight line calculation unit 44 calculates a first straight line that connects the position of the back of the head and the position of the back in the person image 24 determined by the position determination unit 42.

  The second straight line calculation unit 46 calculates a second straight line connecting the back in the person image 24 determined by the position determination unit 42 and the buttocks.

  The angle calculation unit 48 calculates the head inclination angle θ at which the first straight line calculated by the first straight line calculation unit 44 and the second straight line calculated by the second straight line calculation unit 46 intersect.

  The height determination unit 50 determines the height of the pillow 2 such that the height of the pillow 2 is increased as the head inclination angle θ is increased.

  The bedding image generation unit 52 is a side image of the surface shape of the bedding 3 in which the position of the back and the position of the buttocks are corrected to be lower than the height of the second straight line, or the bedding 3 in which the position of the waist is higher than the height of the second straight line. A side image of the surface shape is generated and displayed on the display unit 16 so as to be superimposed on the person image 24.

(3) Operation of Determination Device 10 Next, the operation of determining the height of the pillow 2 of the subject 1 and the surface shape of the bedding using the determination device 10 will be described with reference to the person images of FIGS. 3 to 9 and the flowchart of FIG. This will be explained based on.

  In step S <b> 1, a salesclerk who sells the pillow 2 and the bedding 3 activates the pillow 2 height determination program stored in the control unit 12 of the determination device 10 and displays an initial image on the display unit 16. In the initial image, a rectangular size determining region 22 and five arrows (position specifying marks) 26 to 34 are displayed. The store clerk holds the determination device 10, takes a horizontal view of the subject 1 standing upright on the display unit 16, and takes a picture with the camera 14. At this time, as shown in FIG. 3, the head of the subject 1 is placed in the rectangular size determination area 22 which is a horizontal figure in which the subject 1 stands upright and is displayed on the display unit 16. The store clerk determines the distance between the determination device 10 and the subject 1 so that the horizontal figure fits. That is, if the determination device 10 is too far away from the subject 1, the head of the subject 1 becomes too small, and conversely, if it becomes too close, the head becomes too large. For example, the size determination region 22 is set so that the head has an optimal size when the distance between the determination device 10 and the subject 1 is 2 m. In this state, as shown in FIG. 3, the store clerk takes a picture of the side of the subject 1 with the camera 14, and the acquisition unit 40 acquires the person image 24 and displays it on the display unit 16. Then, the process proceeds to step S2.

  In step S2, as shown in FIG. 3, the store clerk displays five arrows 26 to 34 displayed on the display unit 16 as shown in FIG. "A point"), the cervical spine part (hereinafter referred to as "B point"), the most protruding part of the back (hereinafter referred to as "C point"), and the most depressed part of the lumbar region (hereinafter referred to as "D"). The touch panel 18 is moved with a finger to the most protruding portion of the buttocks (hereinafter referred to as “point E”). At this time, the store clerk considers the thickness and swelling of the clothes worn by the subject 1, and the most protruding portion (point C) of the back along the body line of the subject 1 and the most depressed portion of the waist (Point D) and the tips of the arrows 30, 32, and 34 are moved to the most protruding portion (point E) of the buttocks. The position determination unit 42 reads the coordinate positions of points A to E on the person image 24. The coordinates for setting the coordinate positions of these five points are set at pixel positions on the xy coordinates orthogonal to the two axes on the display unit 16. Then, the process proceeds to step S3.

  In step S3, the first straight line calculation unit 44 calculates a linear equation of the first straight line L1 that connects the coordinate positions (pixel positions) of the points A and B as shown in FIG. Then, the process proceeds to step S4.

  In step S4, the second straight line calculation unit 46 calculates a straight line expression of the second straight line L2 connecting the coordinate positions (pixel positions) of the points C and E, as shown in FIG. Then, the process proceeds to step S5.

  In step S5, the angle calculator 48 calculates the head inclination angle θ at which the first straight line L1 and the second straight line L2 intersect as shown in FIG. Then, the process proceeds to step S6.

  In step S6, the height determining unit 50 determines the height of the pillow 2 from the head inclination angle θ. Here, the head inclination angle θ and the height of the pillow 2 will be described. As shown in FIG. 6, the greater the head tilt angle θ, the greater the distance between the bedding 3 and the point A on the back of the head when the subject 1 sleeps on the bedding 3, and thus a high pillow 2 is required. On the other hand, the lower the head tilt angle θ and the lower the head tilt angle θ as shown in FIG. 7, the lower the pillow 2 is required. Accordingly, the height determining unit 50 stores the first threshold angle θ1 = 30 °, the second threshold angle θ2 = 15 °, and the third threshold angle θ3 = 0 °, and the height determining unit 50 calculates the calculated head inclination angle. The height of the pillow 2 is determined as follows by comparing θ with these three types of threshold angles θ1 to θ3. The values of the first threshold angle θ1, the second threshold angle θ2, and the third threshold angle θ3 are examples and may be changed as necessary.

Very low pillow when θ <0 ° or no pillow needed,
Low pillow when 0 ° <= θ <15 °,
When 10 ° <= θ <30 °, a normal height pillow,
High pillow when 30 ° <= θ.

The height determination unit 50 displays the height of the pillow 2 determined above from the “high pillow”, “ordinary (height) pillow”, “low pillow”, and “very low pillow” on the display unit 16. indicate. In addition to this display, for example, when it is determined as “ordinary pillow”, the height determination unit 50 displays an image of “ordinary pillow” and a list of materials on the call display unit 16 from the storage unit 20. To do. Then, the store clerk and the subject 1 determine the desired pillow 2 by operating the touch panel 18 from the list. Then, the process proceeds to step S7.

  In step S7, the bedding image generation unit 52 displays the side image of the bedding 3 so as to overlap the display unit 16 along the second straight line L2, as shown in FIG. The side image of the bedding 3 is partitioned into blocks P1 to P20 every predetermined length (for example, every 10 cm). Then, the process proceeds to step S8.

  In step S8, the store clerk looks at the side image of the bedding 3 displayed on the display unit 16 and the line of the subject 1's side, and as shown in FIG. 9, at the point D of the waist along the line. The surface shape of the bedding 3 is corrected by increasing the blocks P9 to P14. Then, the process proceeds to step S9. In addition, as the bedding 3 whose height can be corrected, for example, there is the bedding 3 disclosed in Japanese Patent No. 4354782 of the applicant shown below. Thereby, the height of the pillow 2 and the surface shape of the bedding 3 can be determined. Although not shown, when correcting the surface shape of the bedding 3, the blocks P7 to P9 at the point C on the back and the blocks P14 to P16 at the point E on the buttocks may be lowered.

  In step S <b> 9, the bedding image generation unit 52 stores the side image of the surface shape of the bedding 3 according to the corrected body shape of the subject 1, and displays the side image on the subject 1 of the person image 24. The height determination unit 50 also displays the pillow 2 so as to overlap the subject 1 of the person image 24 of the display unit 16.

  Note that the bedding 3 disclosed in Japanese Patent No. 4354782 is an item in which an elastic body having protrusions with large, medium, and small areas on the surface is provided, and the protrusion on the surface of the elastic body is the back of the body. The projection area is arranged so that the area of the projection does not change or changes inversely with respect to the change in the protrusion amount of the concavo-convex shape, and the projection of the protrusion against the change in the load exerted on the bedding by the back surface in the body lying state Arrangement so that the areas do not change or coincide with each other, and on the back side of the bedding 3, a plurality of bag portions extending in the width direction of the bedding 3 are formed, and the bulk of the bedding 3 is partially raised in the bag portion. It is made to be able to store the raised plate.

(4) Effect When determining the height of the pillow 2 in the determination device 10 of the present embodiment, not only the shape of the back of the head as in the conventional case, but also the height of the back and buttocks with respect to the bedding 3 is considered. The height of the pillow 2 that matches the subject 1 can be determined. Further, the surface shape of the bedding 3 according to the body shape of the subject 1 can also be determined. That is, since the posture in which the subject's 1 standing posture is laid down as it is is a good sleeping posture for the subject 1, by confirming the tendency of the body shape of the subject 1, the gap between the body and the pillow 2 and the bedding 3 is reduced. By burying it, it is possible to improve the body pressure dispersibility and create a comfortable sleeping environment without breaking the ideal sleeping posture.

  Further, the height of the pillow 2 and the surface shape of the bedding 3 can be determined and determined simply by photographing the side view of the subject 1 with the camera 14. Therefore, no special technique is required for the store clerk in determining the height of the pillow 2 and the bedding 3.

  If the pillow 2 to be sold is stored in the storage unit 20, the pillow 2 corresponding to the height can be immediately displayed on the display unit 16, which leads to sales promotion.

  Further, when the subject 1 takes an unnatural posture, it may be corrected before photographing, and photographing can be performed with a more ideal posture.

  Moreover, since it can be performed with a tablet terminal without requiring a large-scale measuring device, the subject 1 who is a customer is not nervous at the time of photographing.

(5) Modification Example In the above embodiment, the five arrows 26 to 34 indicate the positions of the five points. In addition to this, the back line is displayed by tracing the finger on the touch panel, and the posture of the subject 1 is clarified. May be displayed. Based on this line, the store clerk can more accurately describe the posture of the subject 1 to sleep.

  In addition, when drawing this line, the line of the back of the subject 1 can be drawn more clearly by omitting the swelling of the clothes worn by the subject 1.

  In the above embodiment, the hardness of the pillow 2 and the hardness of the bedding 3 are constant. However, the hardness of the pillow 2 and the bedding 3 is not limited to this. The height may be modified to be lower.

  In the above embodiment, an arrow is used as the position specifying mark, but the present invention is not limited to this, and a circular mark or a square mark may be used.

  Also, the BMI may be calculated by inputting the height and weight of the subject 1 simultaneously with the photographing, and the hardness of the pillow 2 and the bedding 3 may be determined according to this BMI. In addition, you may determine the hardness of bedding and the pillow 2 only from weight.

  In the above embodiment, the determination device 10 is realized by a tablet terminal. However, the determination device 10 is not limited to this, and may be realized by a smartphone, a feature phone, or a personal computer. In the case of realizing with a personal computer, the person image 24 may be taken with a digital camera.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Test subject, 2 ... Pillow, 3 ... Bedding, 10 ... Pillow height determination apparatus, 12 ... Control part, 14 ... Camera, 16 ... Display part, 18 ... touch panel, 20 ... storage unit, 40 ... acquisition unit, 42 ... position determination unit, 44 ... first straight line calculation unit, 46 ... second straight line calculation unit, 48 ... -Angle calculation unit, 50 ... height determination unit, 52 ... bedding image generation unit

Claims (7)

An acquisition unit for acquiring a human image in which a side view of a subject standing straight is captured;
A position determining unit that determines the position of the back of the subject, the back, and the buttocks in the person image;
A first straight line calculation unit for calculating a first straight line connecting the back of the head and the back;
A second straight line calculating unit for calculating a second straight line connecting the back and the buttocks;
An angle calculator that calculates a head inclination angle θ at which the first straight line and the second straight line intersect;
A height determining unit that determines the height of the pillow higher as the head inclination angle θ is larger in a state where the second straight line is located behind the first straight line at the position of the back of the head;
I have a,
The position determining unit determines the positions of the back of the head, the back, and the buttocks by moving position specifying marks to the positions of the back of the subject, the back, and the buttocks of the subject in the person image,
Pillow height determination device. When the head inclination angle θ is larger than the first threshold angle θ1, the height determining unit determines a high pillow, and is smaller than the first threshold angle θ1 and the second threshold angle θ2 (provided that θ1> θ2). When it is larger, it is determined as a pillow having a normal height, and when it is smaller than the second threshold angle θ2, it is determined as a low pillow.
The pillow height determining apparatus according to claim 1. The height determining unit determines that a very low pillow or a pillow is unnecessary when the second straight line is positioned forward of the first straight line at the position of the back of the head.
  The pillow height determining apparatus according to claim 2. A storage unit storing the type of the pillow corresponding to the head inclination angle;
The height determination unit calls the type of the pillow corresponding to the head tilt angle from the storage unit,
The pillow height determination device according to any one of claims 1 to 3 . The position determining unit further determines the waist of the subject in the person image;
A side image of bedding is displayed on the person image along the second line,
The side image of the position of the buttocks and the back corrected lower than the height of the second straight line, or, bedding image generation unit which generates the side image of the position of the lumbar corrected higher than the height of the second linear In addition,
The pillow height determination device according to any one of claims 1 to 4. An acquisition step of acquiring an image in which a side view of a subject standing straight is captured;
A position determining step for determining the positions of the back of the subject, the back, and the buttocks in the person image;
A first straight line calculating step for calculating a first straight line connecting the back of the head and the back;
A second straight line calculating step for calculating a second straight line connecting the back and the buttocks;
An angle calculating step of calculating a head inclination angle at which the first straight line and the second straight line intersect;
A height determining step for calculating the height of the pillow higher as the head tilt angle is larger;
I have a,
In the position determining step, the positions of the occipital region, the back, and the buttocks are determined by respectively moving position specifying marks to the positions of the occipital region, the back, and the buttocks of the subject in the person image.
How to determine the height of a pillow. An acquisition function for acquiring an image of the lateral view of the subject standing straight ;
A position determination function for determining the position of the back of the subject, the back, and the buttocks in the person image;
A first straight line calculating function for calculating a first straight line connecting the back of the head and the back;
A second straight line calculating function for calculating a second straight line connecting the back and the buttocks;
An angle calculation function for calculating a head inclination angle at which the first straight line and the second straight line intersect;
A height determining function for calculating the height of the pillow higher as the head tilt angle is larger;
Is realized on a computer ,
In the position determination function, the positions of the occipital region, the back, and the buttock are determined by moving position specific markers to the positions of the occipital region, the back, and the buttock of the subject in the person image, respectively.
Pillow height determination program.

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