WO2021006655A1

WO2021006655A1 - Wearable camera and neck guide

Info

Publication number: WO2021006655A1
Application number: PCT/KR2020/008998
Authority: WO
Inventors: 김용국; 조성래; 김용진; 김준세; 이지홍; 변문수
Original assignee: 링크플로우 주식회사
Priority date: 2019-07-10
Filing date: 2020-07-09
Publication date: 2021-01-14
Also published as: KR20210007280A; KR102270886B1

Abstract

The present invention provides a wearable camera which comprises a "U"-shaped case and three camera modules installed in the case at a predetermined angle interval, and can be worn around a neck and acquire a 360-degree panoramic image. Optical axes of the three cameras are positioned on the same plane, and an angle between optical axes of a rear camera and a front camera is larger than an angle between optical axes of front cameras, whereby the wearable camera can improve accuracy during image stitching work, and minimize a non-informational image as well.

Description

Wearable Camera and Neck Guide

The present invention relates to a wearable camera, and to a wearable camera that can be worn on the body and is equipped with three cameras to capture 360-degree images and a neck guide thereof.

A wearable camera refers to a camera device that is mounted on a body part such as a person's neck or head to photograph the user's surroundings, and has the advantage of being able to use both hands freely because the user does not need to carry it with his or her hands. In recent years, 360-degree wearable cameras that can take real-time all directions around the wearer are emerging as safety, firefighting, security, and leisure use.

In general, a conventional wearable camera is formed in a form in which a small camera module is installed on a body in the form of an ear set or a neckband worn on the ear. In particular, in the 360-degree omnidirectional wearable camera, a number of cameras are placed at the same angle apart from each other on the frame of the neckband or earset. In other words, if there are 4 cameras, they are arranged at 90 degree intervals to collect image data on the slopes and stitch images. In this way, a plurality of camera modules are arranged at equal angular intervals in a neckband-type wearable camera hanging around the neck. However, this method does not take into account the human body condition to be worn, and it is necessary to obtain a high-quality 360-degree image without blind spots by considering the angle of the curved shoulder while maintaining the relative position and angle between the cameras.

On the other hand, when the wearable camera is worn on the neck, since the thickness or shape of the wearer's neck is different from person to person, it is not properly fixed to the body, which causes the wearable camera to flow and focus poorly. . In particular, in the case of a 360-degree wearable camera, a rigid case is employed to mount or support the cameras in order to maintain the relative position and angle between the cameras. In this case, it is difficult to closely fix the case and the body, and it is difficult to adequately cope with different body types for each person even if they are designed for a standard body type. Therefore, there is a need for a support tool that can be worn according to the user's body condition and can be stably fixed to the body at the same time.

In order to solve the above problems, the present invention is provided with a U-shaped case that can be worn on the neck, and three camera modules are installed in the case so as to be spaced apart from each other to provide a wearable camera capable of acquiring 360 degree images. It has its purpose to provide.

In addition, it is intended to provide a 360-degree all-round wearable camera that can easily stitch images and minimize blind spots for shooting.

Another object of the present invention is to provide a 360-degree wearable camera having excellent image quality because it can be stably fixed to fit the body while maintaining a constant position and position between camera modules.

Another object of the present invention is to provide a neck guide for a wearable camera that is selectable for a user's body, is easily detachable, and has excellent fixing power.

In order to achieve the above object, the wearable camera of the present invention includes: a U-shaped case comprising a rear portion and a side portion protruding forward from both ends of the rear portion and having a mounting space therein; Three cameras respectively mounted in front of the rear part and the side part; And a control module for generating a 360-degree image by combining the image captured by the camera into one by image stitching.

It is preferable that the optical axes of the three cameras are on the same plane, and the three cameras are fixedly mounted in the case to maintain their relative positions and optical axes.

The three cameras include a rear camera disposed at the rear portion of the case, and a front right camera and a front left camera disposed at both front sides of the side portion. It is preferable that the case is made of a rigid material.

The extension line of the optical axis of the rear camera, the front right camera, and the front left camera meet at one point, and the angle of the second central angle formed by the optical axis of the rear camera and the front right camera is a second center angle formed by the optical axis of the rear camera and the front left camera. It can be the same as the angle of the 3 center angle.

It is preferable that the angle of the first central angle formed by the optical axis of the front right camera and the front left camera is different from the second central angle and the third central angle.

The plane including the optical axis has a certain angle with respect to the horizontal plane formed by the bottom surface of the case.

According to a preferred embodiment of the present invention, the first central angle is 85° to 88°, and the second and third central angles are 136° to 137.5°, respectively.

It is preferable that the wearable camera according to another embodiment of the present invention includes a neck guide that is detachably fixed to a case, and the neck guide is provided with a plurality of pairs of different sizes to be detachable according to the user's body size. .

The neck guide is composed of two symmetrical neck guides on the right and left, and is fixed to the inside of the side of the U-shaped case to form a loop with an open front side with the inside of the rear portion of the case, and contact the user's neck. The case is fixedly supported on the user's neck.

The neck guide is made of an elastic material, and includes an arc-shaped support portion for contacting the user's body, and an attachment portion formed at one end of the support portion and detachably coupled to the case.

It is preferable that a mounting portion for fixing the neck guide protrudes inside the side portion of the U-shaped case.

The mounting portion is formed to protrude from the inside of the side portion of the case toward the central portion, and the attachment portion and the mounting portion are fitted and coupled by hook coupling. It is preferable that a hook protrusion for coupling the hook is formed on the attachment portion and a hook stop protrusion for coupling the hook is formed on the mounting portion.

The attachment portion includes a U-ring-shaped attachment member protruding from the support portion, and a cantilever-shaped hook coupling portion positioned between the U-shaped protrusions of the attachment member and extending from the support portion.

One end of the two protrusions parallel to each other is connected to the support part, and the other ends of the two protrusions are connected to each other to constitute the U-shaped attachment member.

A rail groove is extended along the inner circumferential surface of the U-ring-shaped attachment member, one end of the rail groove on the support side is open, and a guide to be inserted into the frame groove on the outer circumferential surface of the protruding surface of the mounting unit to fit and fit. The rail is formed protruding.

According to an embodiment of the present invention, a neck guide made of an elastic material that is detachably coupled to a wearable camera is provided. The neck guide is detachably fixed to the inner circumferential surface of the wearable camera case to form a circular loop with an open front side with the inside of the rear part of the case, and the loop contacts the user's neck to fix the case to the user's neck. Support.

It is preferable that the attachment portion is fixedly coupled to a mounting portion protruding from the inner circumferential surface of the case by hook coupling, and a hook protrusion for hook engagement with a hook stop protrusion formed on the mounting portion is formed on the attachment portion.

As described above, the 360-degree wearable camera of the present invention can minimize an unnecessary photographing area in consideration of a body structure and improve stitching quality and photographing efficiency of an image.

According to an aspect of the present invention, a neck guide that is in close contact with the neck is provided by size, so that it can be applied to various body sizes, and when worn, the case is in close contact with the neck without deforming the case, so that the case is not easily removed or shaken. As a result, image quality and product durability are improved.

The wearable camera according to an aspect of the present invention has excellent image quality, reliability, and ease of use because the neck guide is easily detachable and has excellent fixing power after assembly.

The neck guide according to an embodiment of the present invention is easy to attach and detach to the wearable camera, but is not separated by an external force of up, down, left, and right, and thus has excellent assembleability and coupling quality.

1 is a view showing the top and side surfaces of a wearable camera according to an embodiment of the present invention.

2 is a perspective view of a wearable camera and a side view of a neck guide according to an embodiment of the present invention.

3 is a perspective view of a neck guide in a direction coupled to a wearable camera case according to an embodiment of the present invention.

Figure 4 is a perspective view showing an enlarged detachable portion of the neck guide in the embodiment of the present invention.

5 is a perspective view showing a mounting portion of a case and a detachable portion of the neck guide in a state before detachment according to an embodiment of the present invention.

6 is a plan view showing a direction in which a neck guide is attached to a camera case according to an exemplary embodiment of the present invention from an upper surface.

7 is a cross-sectional view showing a cross-sectional view before (a) and after (b) a neck guide of a wearable camera according to an embodiment of the present invention is fixedly mounted to a case attachment portion.

8 is a diagram schematically showing the relative positions of images captured by three cameras of a wearable camera according to an embodiment of the present invention.

Terms and words used in this specification and claims are not limited to the usual or dictionary meanings, and the inventor is based on the principle that the concept of terms can be appropriately defined in order to describe the user's invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

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

1, a wearable camera according to an embodiment of the present invention includes a U-shaped case 100, three

cameras

201, 202, and 203, and a control module (not shown). In addition, a battery module for power supply or an external power supply cable may be included, and it is preferable to further include a communication module.

The case 100 is formed in a U-shape including a rear portion positioned on the back neck of the user when worn on the user's neck, and a side portion that is bent forward and protruded from both ends of the rear portion, and has a mounting space therein. Have. Three

cameras

201, 202, 203 and a control module are fixed or mounted in the case 100.

The control module (not shown) combines images captured by three cameras into one by image stitching to create a 360-degree image. To this end, circuits and electronic components for camera control and image data generation are PCB or SoC (system on). chip).

The three cameras include a rear camera 201 disposed at the rear portion of the U-shaped case 100, a front right camera 202 and a front left camera 203 disposed in front of both sides of the side portion. The case is made of a rigid material, and the three cameras are fixed in the case to maintain their relative positions and optical axes. Furthermore, by minimizing the blur of the optical axis of the three cameras, it is possible to prevent the blur of the camera focus and maintain the image quality.

If the relative positions and angles between the plurality of cameras are not kept constant due to micro-vibration, the quality of image stitching may deteriorate, and data processing time may increase in order to correct this. When an operation is performed using real-time 360-degree video at a crime or terrorist scene, the real-time 360-degree video quality must be maintained to ensure appropriate response.

It is preferable that the optical axes of the rear camera 201, the front right camera 202, and the front left camera 203 are on the same plane. Acquiring an image on the same plane in order to obtain a desired 360-degree omnidirectional image centered on the user's position and the camera mounting position is good in terms of the efficiency and effect of stitching. For image stitching, the relative position between the cameras and the arrangement of the relative optical axes must be kept constant so that seamless image stitching can be achieved by the same standard, and image data processing time and image quality can be secured.

Meanwhile, the positions and mounting directions of the three cameras are designed so that the extension lines of the optical axes of the rear camera 201, the front right camera 202, and the front left camera 203 meet at one point. Here, the optical axis is an axis that serves as a reference for an optical system constituting each camera, and may be, for example, a central axis of the optical system, and is indicated by a dotted line in the perspective view of FIG. 1. The second central angle β formed by the optical axis of the rear camera 201 and the front right camera 202 is the same angle as the third central angle β formed by the optical axis of the rear camera 201 and the front left camera 203 The first central angle α formed by the optical axes of the front right camera 202 and the front left camera 203 is different from the second central angle and the third central angle.

When the wearable camera of the U-shaped case is worn on the neck, the rear camera 201 is located on the user's back neck, and the

front cameras

202 and 203 are relatively directed to a lower position on the ground than the rear camera. This is due to the shape of the U-shaped case and the three-dimensional shape of the neck and shoulders of the human body. Even if the optical axis of the 3 camera is located on the same plane, the plane is slightly inclined with respect to the horizontal plane while wearing it. That is, the optical axes of the

front cameras

202 and 203 are directed to a position slightly lower than that of the rear camera 201 to capture surrounding images.

As a result, a captured image as can be seen in FIG. 8 is obtained. The center part of FIG. 8 is an image photographed by the rear camera 201, and the left and right squares are images photographed by the

front cameras

202 and 203, which schematically indicate the heights of their relative positions. That is, the hatched portion of 8 is an image of approximately the same height and is the object of image stitching.

However, when the angle between the three cameras is the same or similar to 120 degrees, the front left and right cameras photograph a part of the wearer's body, that is, the lower part of the part indicated by the curve in Fig. 8(a) as part of the image. The part is an area with no or low information in the image captured by the wearable camera. That is, an unnecessary image, which is a part of the front of the wearer's shoulder, is photographed to reduce a portion occupied by an informative 360-degree image.

The inventors of the present invention consider the three-dimensional body structure of a user wearing a wearable camera, and the first central angle α formed by the optical axis of the front right camera 202 and the front left camera 203 is the second central angle β. And a structure smaller than the third central angle (γ) was developed. According to a preferred embodiment of the present invention, the optical axes of the three cameras are located on the same plane and the extension lines of the three optical axes meet at one point, the first central angle is 80° to 90°, and the second central angle and the third central angle are Each is between 135° and 140°. More preferably, the first central angle is 85° to 88°, preferably 86.21°, and the second and third central angles are respectively 136.895°. It is preferable that the angle of view of each of the three cameras is 187 degrees or less.

According to the preferred configuration of the present invention as described above, the image portion of the image taken by the front cameras as shown in (b) of FIG. 8 is to be directed toward the shoulder of the user rather than the external environment (under the curve of FIG. 8b). Part) is minimized, so it is possible to obtain an image with excellent information and easy stitching. If the first center angle is made smaller, the blind spot can be reduced, but this may cause an image distortion problem outside the wide-angle lens.

Meanwhile, according to the case side view of FIG. 1, when the wearable camera is mounted on the neck, the plane including the optical axis with respect to a horizontal plane connecting the rear bottom of the case 100 and the front camera central axis in consideration of the user's body structure is It is preferable to have a constant angle, preferably a slope of θ = 2.23°. This is a structure that considers the body structure with the rear neck higher than the front shoulder while minimizing the angle difference between the rear and front cameras.

According to another embodiment of the present invention, it is preferable that the wearable camera includes a neck guide 500 that is detachably fixed to the case. In order to keep the relative position and optical axis between the cameras constant, the case is preferably made of a rigid material. In this case, it is difficult for the case to be tightly fixed to the body, especially the neck. Therefore, when the wearable camera is worn, the case may be shaken or dropped from the neck, and the focus may be shaken during imaging, resulting in deterioration of the image quality, and further, the product may drop and fall to the floor, causing damage.

Accordingly, by providing the neck guide 500 made of an elastic material to be mounted on the case and fixing the neck guide to the body, particularly the neck, the wearable camera can be stably worn.

According to an embodiment of the present invention, the neck guide is preferably provided in a plurality of sizes according to the user's body size. For example, since it provides a detachable neck guide of three sizes, large, medium, and small, a user can select a neck guide that fits the body size and install it on the case.

Hereinafter, the configuration of the neck guide and the coupling structure and method with the case will be described in more detail with reference to FIGS. 2 to 7.

2 is a perspective view of a wearable camera to which a neck guide is coupled according to an embodiment of the present invention, and a side view of the neck guide.

Referring to FIG. 2, two pairs of symmetrical neck guides on the right and left are provided for one wearable camera, and the neck guide 500 is fixed to the inner side of the U-shaped case. The neck guide is made of two, one end is fixed to the inner circumferential surface of the side portion of the case 100, the other end protrudes in a curved shape curved in a direction facing each other to be placed in a free state. The neck guide 500 has an elastic force, and when the case 100 is mounted on the neck, it is in close contact with the neck by the elastic force.

By providing a neck guide 500 in close contact with the neck on the inner circumferential surface of the side of the case 100, when worn, the case 100 is in close contact with the neck without deforming the case 100 to stably attach the case 100 to the body. Can be fixed, which improves safety and image quality. The left and right neck guides are coupled to the inner side of the case of the wearable camera to form a circular loop with an open front side with the inner rear of the case, and the circular loop contacts the user's neck to fix the case to the user's neck. Will be supported.

For convenience, the mounting part and the neck guide of the wearable camera will be described based on the right neck guide 500 from the perspective of the wearer. The left neck guide has the same configuration, but a shape that is symmetrical with the right neck guide, so a person of ordinary skill in the art will be able to easily understand it without a separate description.

The neck guide 500 is made of an elastic material such as PC (poly carbonate), an arc-shaped support part 510 for contact with the user's body, and an attachment that is formed at one end of the support part and is detachably fixed to the case Includes part 520. The neck guide 500 including the support part 510 and the attachment part 520 is preferably formed integrally, but is not limited thereto.

As shown in FIGS. 2 and 3, the support part 510 has an arc shape, and in order to add elasticity and flexibility, a cut-out part 512 having the same arc shape may be formed in a long length along the arc.

FIG. 3 is a perspective view of the neck guide 500 in a lateral direction coupled to the case 100, and FIG. 4 is a partial perspective view of the neck guide showing the attachment portion 520 viewed from the support portion 510 direction. 3 and 4, the attachment portion 520 includes an attachment member 530 that surrounds the hook coupling portion 540 and the hook coupling portion 540 so as to be spaced apart, and an attachment portion on the inner circumferential surface of the side portion of the case 100 The mounting portion 400 for being coupled with the 520 is formed to protrude. The attachment portion 520 and the mounting portion 400 are hook-coupled, and the attachment member 530 forming the outer circumferential portion of the attachment portion 520 is coupled while surrounding the mounting portion 400 of the case when the hook is coupled. The configuration of the attachment portion and the attachment portion will be described in detail below.

4 and 5, the attachment member 530 is formed in a U-shaped long ring shape having a through hole in the center extending from one end of the support part 510, and the ring shape extends from the support part 510 At the same time, it is formed protruding upward (see FIGS. 4 and 5). That is, one end of the attachment member 530 is formed to protrude in a vertical direction from the support part 510 on both sides with the hook coupling part 540 interposed therebetween, and the protruding extensions on both sides meet at the other end to form an integral ring. To form. At this time, the meeting part becomes the connection part of the U-shaped center, and both ends are connected to the support part 510.

The hook coupling portion 540 extends from one end of the support portion 510 along a space forming a through hole of the attachment member 530 so as to be parallel to the attachment member 530. The hook coupling part 540 has a fixed end fixed to the support part 510 and the other end is a cantilever shape, and is preferably formed integrally with the support part 510 and the attachment member 530, but is limited thereto. It doesn't work.

A hook protrusion 543 is formed between the free end region 541 of the hook coupling portion 540 and the fixed end region 542 connected to the support, and the hook protrusion 543 is in the direction of the upper protrusion of the attachment member Doedoe protruding in the same direction, has a hook engaging surface 544 that protrudes sharply or vertically from the free end region 541, and has a relatively gentle slope or curved surface toward the fixed end (see FIG. 7).

The hook coupling portion 540 is surrounded entirely by the attachment member 530 to be spaced apart, but the fixed end side is connected adjacent to the attachment member by the support portion 510.

On the other hand, in the case, the mounting portion 400 is formed to protrude so as to be fitted and coupled with the through hole, and the protruding surface 442 corresponding to the attachment portion 510 of the mounting portion 400 is formed with a longitudinal contour of the through hole. It is formed long to match. In one area of the protruding surface 442 of the mounting portion 400, a hook protrusion 543 and a hook stop protrusion 443, which are hook-coupled, are formed to protrude. The front side of the hook stop protrusion 443 is formed to form a vertical or steep slope 444, and the rear side is formed to form a gentle slope or curved surface (see FIGS. 5 and 7).

The configuration of the attachment member 530 will be described in detail with reference to FIGS. 3 to 5. As shown in Figs. 3 and 4, the attachment member 530 has a U-shaped ring-shaped structure extending from one end of the support part 510, and a long through hole is formed in the ring, and the support part 510 is formed in the through hole. The hook coupling portion 540 in the form of a cantilever that is fixed to the cantilever is formed to be long. That is, the hook coupling portion 540 is disposed in the through hole of the U-shaped ring-shaped attachment member 530 so that it can flow up and down on the free end side around the fixed end.

Referring to FIG. 4, a rail groove 532 is formed along the U-shaped inner circumferential surface of the annular attachment member 530. The rail groove 532 is formed to be elongated along the long inner circumferential surfaces of both sides of the attachment member 530, and is formed to be open at one end of the attachment member 530 protruding upward with respect to the support part 510, and to the opposite part of the other end. It extends to be bent. The open end of the rail groove 532 is a portion into which the guide rail 432 at the edge of the mounting portion of the case is inserted when the neck guide is mounted on the case.

Meanwhile, the mounting portion 400 of the case 100 of FIG. 4 includes a pillar 448 protruding from an inner circumferential surface of the case, and a guide rail 432 protruding toward an outer circumferential side of the circumferential edge of the protruding surface 442. The guide rail 432 is designed in shape and thickness so that it can be slid and fitted along the rail groove 532.

The combination of the attachment portion and the mounting portion will be described with reference to FIGS. 5 to 7.

First, as shown in Figure 5, in a state in which the hook protrusion 543 of the attachment portion 520 is arranged to face the mounting portion 400, the attachment portion 520 is positioned slightly rearward than the mounting portion 400, While sliding the attachment portion 520 of the neck guide 500 to the attachment portion 400 of the case in the direction of the arrow shown in FIG. 6, the attachment portion 520 of the neck guide 500 and the attachment portion 400 are hooked.

Figure 7 is a horizontal so that the relative position and structure of the hooks stop protrusion 443 and the hook protrusion 543 can be seen before (a) and after (b) coupling the mounting part 400 and the attachment part 520 of the case. It is a cut drawing.

5, 7(a) and 6, the guide rails 432 on both sides of the rim of the mounting portion are rearward (the rear camera of the case is arranged with both openings of the rail groove 532 of the neck guide 500) When the relative slide movement is performed by being inserted from the direction), the protruding mounting portion 400 is engaged with the through hole in the U-shape of the attachment member 530. At the same time, the protruding surface 442 performs a relative sliding motion with respect to the hook engaging portion 540, and first, the gentle slope of the hook protrusion 543 and the gentle slope of the hook stop protrusion 443 meet and slide with each other. The steep slope 544 of the hook protrusion 543 and the steep slope 444 of the hook stop protrusion 443 are in contact with each other to achieve a hook coupling. At this time, the protruding mounting portion 400 is inserted into the inner through hole of the attachment member 530, and the rear end of the mounting portion 400 abuts against the rear inner circumferential surface of the attachment member 530 and the hook protrusion 543 ) And the hook of the hook stop protrusion 443 is fixed to the front and rear of the mounting portion.

At the same time, the guide rail 432 at the edge of the mounting portion is inserted into the rail groove 532 of the neck guide 500, and the rail groove 532 is formed to be bent along the inner circumferential surface of the U-shaped attachment member, so that the hook coupling and Due to the combination of the rail groove and the rail guide, a combination that is difficult to separate against external forces of the front, rear, left and right and up and down is achieved.

7B is a view showing a cross-sectional view of the mounting portion and the hook coupling portion in a state in which the hook coupling is made.

In order to release this coupling, a release groove portion formed between the rear inner circumference of the attachment member and the free end end of the hook coupling portion, which is a part of the through hole of the attachment member 530, as shown in FIG. 7(b). When a fingernail or fingertip is inserted into the 560 and pulls the free end side region 541 of the hook coupling part, that is, the free end end of the hook coupling part in the release direction indicated by an arrow, the hook coupling is easily released.

As described above, the elastic neck guide 500 of the present invention is provided for each size so that it is easily detached from the case, but is not easily removed by an external force when mounted, and is stably fixed to the case of the wearable camera. Since the neck guide suitable for the user's body is easily and firmly coupled to the case, and the neck guide has excellent contact bonding force to the body, a wearable camera having excellent body adaptability, convenience of use, and image quality can be provided through a simple configuration.

The neck guide is formed by CNC machining of a rail groove and a part of the neck guide hook in order to improve the precision of CNC machining dimensions after injection molding PC.

On the other hand, the case 100 is a composition of PBT and GF, and contains 40% of GF, and two upper and lower cases are each formed integrally and combined.

Although not shown in the drawing, a microphone for recording external sound and a speaker module may be installed inside the case 100, respectively, and Wi-Fi for transmitting an image captured by the camera to an external storage device. , A wireless communication module such as LTE may be installed.

The present invention is not limited thereto, and may be modified in various forms by those skilled in the art without departing from the spirit and scope of the following appended claims, and thus such modifications should be interpreted as being within the scope of the present invention. something to do.

Claims

A U-shaped case comprising a rear portion and a side portion protruding forward from both ends of the rear portion and having a mounting space therein;

Three cameras respectively mounted in front of the rear part and the side part; And

A wearable camera comprising a; control module for generating a 360-degree image by combining the image captured by the camera into one by image stitching.
The method of claim 1,

The optical axes of the three cameras are on the same plane,

The three cameras are fixedly mounted in the case to maintain a relative position and optical axis.
The method of claim 2,

The three cameras include a rear camera disposed at the rear portion of the case, a front right camera and a front left camera disposed at both front sides of the side portion,

The case is a wearable camera, characterized in that made of a rigid material.
The method of claim 3,

An airable camera, characterized in that a plane including the optical axis has a certain angle with respect to a horizontal plane including a bottom surface of the rear part of the case and a center of the front camera.
The method of claim 1,

And a neck guide detachably fixed to the case,

The neck guide is a wearable camera, characterized in that a plurality of pairs of different sizes are provided to be detachable according to the user's body size.
The method of claim 5,

The neck guide is composed of two symmetrical neck guides on the right and left, and is fixed to the inside of the side of the U-shaped case to form a loop with an open front side with the inside of the rear portion of the case, and contact the user's neck. Wearable camera, characterized in that the case is fixed to the user's neck and supported.
The method of claim 5 or 6,

The neck guide is made of an elastic material and includes an arc-shaped support portion for contacting the user's body, and an attachment portion formed at one end of the support portion and detachably coupled to the case,

Wearable camera, characterized in that the mounting portion for fixing the neck guide is formed protruding inside the side of the U-shaped case.
The method of claim 7,

The mounting portion is formed protruding toward the central portion from the inner side of the case,

The wearable camera, characterized in that the attachment portion and the mounting portion are fitted and coupled by hook coupling.
The method of claim 8,

A wearable camera, wherein a hook protrusion for coupling the hook is formed on the attachment portion, and a hook stop protrusion for coupling the hook is formed on the mounting portion.
As a neck guide made of elastic material that is detachably coupled to the wearable camera,

The neck guide is detachably fixed to the inner circumferential surface of the wearable camera case to form a circular loop with an open front side with the inside of the rear part of the case, and the loop contacts the user's neck to fix the case to the user's neck. Support,

The neck guide is made of an elastic material and includes an arc-shaped support portion for contacting the user's body, and an attachment portion formed at one end of the support portion and detachably coupled to the case,

The attachment portion is a neck guide, characterized in that the fixed coupling by hooking the mounting portion protruding from the inner peripheral surface of the case.