KR200487654Y1 - Height detection device using a camera - Google Patents
Height detection device using a camera Download PDFInfo
- Publication number
- KR200487654Y1 KR200487654Y1 KR2020160000945U KR20160000945U KR200487654Y1 KR 200487654 Y1 KR200487654 Y1 KR 200487654Y1 KR 2020160000945 U KR2020160000945 U KR 2020160000945U KR 20160000945 U KR20160000945 U KR 20160000945U KR 200487654 Y1 KR200487654 Y1 KR 200487654Y1
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- camera
- subject
- angle
- face
- height
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
Abstract
An embodiment of the present invention relates to an elongation detecting apparatus, and a technical problem to be solved is to provide an elongation detecting apparatus using a camera that can detect the elongation of a subject at a distance in a non-contact manner.
To this end, the present invention relates to a camera for photographing a subject at a height apart from the ground; An angle adjuster for adjusting an angle of the camera toward a face of the subject; A distance sensor for detecting a distance to the subject; And a control unit for calculating the elongation of the subject using the height of the camera, the angle of the camera, and the distance.
Description
One embodiment of the present invention relates to an extension detecting apparatus using a camera.
In general, the contact elongation measurement method is a method in which the subject contacts the subject's head manually or automatically in the correct posture and measures the distance from the bottom of the bar to the bottom of the bar, Can be measured. However, such a contact type elongation measuring method has a problem that it may cause discomfort because the physical apparatus is brought into contact with the human body, and there is also an inconvenience that the subject must stand properly on the elongation measuring apparatus.
In addition, the non-contact type elongation measuring method, which is another method of measuring elongation, is a method of measuring elongation without contacting a physical device, for example, using an ultrasonic sensor, It is possible to measure the elongation of the subject by emitting an ultrasonic wave to the head, calculating the distance between the subject's head and the ultrasonic sensor by detecting ultrasonic waves reflected from the subject's head, and subtracting the distance calculated from the height of the ultrasonic sensor .
This non-contact type elongation measurement method can acquire information related to the kidney without discomfort because the physical apparatus does not contact the human body. Therefore, it is necessary to continue research and development for more accurate and improved non-contact type elongation measurement in the future.
A problem to be solved by the present invention is to provide a device for detecting a kidney using a camera which can detect the elongation of a subject at a remote location in a non-contact manner.
According to an embodiment of the present invention, there is provided an extension detecting apparatus using a camera, comprising: a camera for photographing a subject at a height apart from the ground; An angle adjuster for adjusting an angle of the camera toward a face of the subject; A distance sensor for detecting a distance to the subject; And a controller for calculating an elongation of the subject using the height of the camera, the angle of the camera, and the distance.
Wherein the control unit processes an image input by the camera to extract the subject; And a face detection unit for detecting the face of the subject from the image processed by the image processing unit, wherein the control unit controls the angle control unit so that the face of the subject is located at the center, can do.
The camera may be installed in a height-adjustable cylinder drive.
The control unit controls the cylinder driving unit so that the angle by the angle adjusting unit becomes a minimum value, and the height of the camera can be recognized at this time.
The controller may further include an operation unit that receives the height, angle, and distance and calculates an extension of the subject.
The control unit may further include a display unit for displaying the height of the subject.
According to an embodiment of the present invention, there is provided a method of detecting an elongation using a camera, comprising the steps of: photographing a subject using a camera at a height apart from the ground; Adjusting an angle of the camera toward a face of the subject; Detecting a distance to the subject; And calculating the elongation of the subject using the height of the camera, the angle of the camera, and the distance.
Wherein the face detection step comprises: an image processing step of processing the image input by the camera to extract the subject; And a face detection step of detecting the face of the subject from the processed image, wherein the camera angle is controlled so that the face of the subject is positioned at the center, and the camera angle at this time can be recognized.
The camera may be installed in a height-adjustable cylinder drive.
The angle controlling step controls the cylinder driving unit so that the angle of the camera is the minimum value, and the height of the camera can be recognized at this time.
And a display step of displaying the height of the subject.
Wherein the control unit controls the angle adjusting unit so that the center of the face of the subject is positioned at the center of the image, and recognizes the camera angle at this time, the total number of upper and lower pixels of the image, An offset angle is further calculated using the number of pixels up to the upper end of the subject, and the elongation of the subject is calculated by adding the offset angle to the angle.
One embodiment of the present invention provides an extension detecting apparatus using a camera that can detect the elongation of a subject at a distance in a non-contact manner. That is, the present invention detects the elongation of the subject in a non-contact manner by using the distance to the subject at a distance, the angle of the camera toward the subject's face (for example, the top of the head or the center of the face) do. In particular, the present invention adjusts the height of the camera so as to be similar to the height of the subject, thereby minimizing the angle of the camera looking at the subject, thereby detecting the height of the subject more accurately. Accordingly, the present invention enables not only normal extension detection but also security camera to extract the kidney information of a person photographed in real time.
FIGS. 1A and 1B are a schematic view and a block diagram showing a configuration of an extension detecting apparatus using a camera according to an embodiment of the present invention, and FIG. 1C is a schematic view illustrating the principle of the present invention.
2 is a flow chart showing a method of detecting extension by an extension detecting apparatus using a camera according to an embodiment of the present invention.
3A and 3B illustrate a method of estimating an offset angle? In consideration of an angular deviation in an extension detecting apparatus using a camera according to another embodiment of the present invention.
4 is a schematic view showing a method of detecting extension by an extension detecting apparatus using a camera according to another embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Embodiments of the present invention are provided to more fully illustrate the present invention to those skilled in the art, and the following embodiments may be modified in various ways, It is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art.
In the following drawings, thickness and size of each layer are exaggerated for convenience and clarity of description, and the same reference numerals denote the same elements in the drawings. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items. In the present specification, the term " connected "means not only the case where the A member and the B member are directly connected but also the case where the C member is interposed between the A member and the B member and the A member and the B member are indirectly connected do.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the inventive concept. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise, " and / or "comprising, " when used in this specification, are intended to be interchangeable with the said forms, numbers, steps, operations, elements, elements and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.
Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present disclosure.
It is to be understood that the terms related to space such as "beneath," "below," "lower," "above, But may be utilized for an easy understanding of other elements or features. Terms related to such spaces are intended for an easy understanding of the present invention depending on various process conditions or conditions of use of the present invention and are not intended to limit the present invention. For example, if an element or feature of the drawing is inverted, the element or feature described as "lower" or "below" will be "upper" or "above." Thus, "below" is a concept covering "upper" or "lower ".
Further, the controller (controller) and / or other associated equipment or components in accordance with the present invention may be implemented using any suitable hardware, firmware (e.g., custom semiconductor), software, or any appropriate combination of software, . For example, various components of a controller (controller) and / or other associated equipment or components according to the present invention may be formed on one integrated circuit chip or on a separate integrated circuit chip. In addition, the various components of the controller (controller) may be implemented on a flexible printed circuit film and formed on the same substrate as the tape carrier package, printed circuit board, or controller (controller). In addition, the various components of the controller (controller) may be a process or thread executing on one or more processors in one or more computing devices, which executes computer program instructions to perform various functions, And interact with other components. The computer program instructions are stored in a memory that can be executed on a computing device using standard memory devices, such as, for example, random access memory. The computer program instructions may also be stored in other non-transitory computer readable media, such as, for example, CD-ROMs, flash drives, and the like. Further, those skilled in the art to which this invention pertains will appreciate that the functions of the various computing devices may be combined with one another, integrated into one computing device, or the functionality of a particular computing device may be implemented within one or more other computing devices Lt; / RTI > can be dispersed in the < / RTI >
For example, the controller according to the present invention may be implemented as a central processing unit, a mass storage device such as a hard disk or solid state disk, an input device such as a volatile memory device, a keyboard or a mouse, an output device such as a monitor or a printer, Of commercial computers.
FIGS. 1A and 1B are a schematic view and a block diagram showing a configuration of an
1A and 1B, an
The
The
The adjustment of the angle of the
The
Meanwhile, the
In addition, the height of the
Of course, in some cases, the
The
Here, the
The calculating
In addition, the image (full image and / or face image) and the extension information of the subject 200 may be stored in the
In addition, the
The present invention may further include an
1C, when the angle [theta] of the
[Equation 1]
tan (?) = (Y-y) / x
For example, when the angle? Of the
tan (10) = (Y-1) / 5 == Y = 5 * tan (10) + 1
Y = 5 * 0.176 + 1 = 1.88 (m)
Although the height of the
However, since the angle? Of the
As described above, according to the
2 is a flow chart showing a method of detecting extension by an
As shown in FIG. 2, the extension detecting method according to the present invention includes a subject photographing and face detecting step S1, a camera angle detecting step S2, a cylinder driving part height adjusting and detecting step S3, A measurer distance detection step S4, an extension calculation step S5 and an extension display step S6. Here, steps S1 to S4 may be performed in an order other than the order shown in the drawings. S2-S1-S4-S3, S4-S1-S2-S3, S4-S3-S2-S1, S1-S4-S3-S2, and so on. Also, steps S1 to S4 may be performed simultaneously.
In the subject photographing and face detection step S1, the
In the camera angle detection step S2, the
The
Here, when the
In the subject distance detection step S4, the
In the elongation calculation step S5, the
In the extension display step (S6), the control unit (150) displays the height of the subject (200) using the display unit (170). At this time, the
Thus, the present invention provides an extension detecting apparatus using a camera that can detect the elongation of a subject at a distance in a non-contact manner. That is, the present invention detects the elongation of the subject in a non-contact manner using the distance to the subject at a distance, the angle of the camera toward the subject's face (in particular, the top of the head or the center of the face), and the height of the camera. Particularly, the present invention adjusts the height of the camera so as to be similar to the height of the subject, thereby detecting the height of the subject more accurately. Accordingly, the present invention enables not only normal extension detection but also security camera to extract the kidney information of a person photographed in real time.
3A and 3B illustrate a method of estimating an offset angle? In consideration of an angular deviation in an extension detecting apparatus using a camera according to another embodiment of the present invention.
First, as shown in FIG. 3A, the
3B, the above-described offset angle? Defines the total number of upper and lower pixels (or distance) in the image photographed by the
&Quot; (2) "
? =? / 2 * 1 / L
That is, in another embodiment of the present invention, when the
4 is a schematic view showing a method of detecting extension by an extension detecting apparatus using a camera according to another embodiment of the present invention.
4, the offset angle? From the center of the image captured by the camera 110 (the center of the human face) to the top of the human face is estimated in consideration of the above-described deviation, Extension estimation can be performed more precisely as in Equation 3.
&Quot; (3) "
Y = y + tan (? +?) * X
That is, in the present invention, both the angle (?) And the offset angle (?) Toward the center of the face of the human being by the
The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the scope of the present invention as defined in the appended claims. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
100; A camera-based extension detecting device according to the present invention
110;
130;
150; A
152; A
160;
180; An
Claims (7)
An angle adjuster for adjusting an angle of the camera toward a face of the subject;
A distance sensor for detecting a distance to the subject; And
And a controller for calculating an elongation of the subject using the height of the camera, the angle of the camera, and the distance,
Wherein the controller calculates a Y value as an extension of the subject according to a formula of Y = y + x * tan (?),
Wherein the θ value is an angle of the camera toward a face of the subject based on a horizontal line with the ground, the y value is a height of the camera, the x value is a distance between the camera and the subject,
Wherein,
An image processor for processing the image input by the camera to extract the subject; And
And a face detection unit for detecting a face of the subject from the image processed by the image processing unit,
Wherein,
Controls the angle adjusting unit so that the face of the subject is located at the center, recognizes the camera angle at this time,
The control unit
The controller controls the angle adjusting unit so that the center of the face of the subject is located at the center of the image, and when the angle of the camera is recognized, the total number of upper and lower pixels of the image, Calculates an elongation of the subject by adding the offset angle to the angle,
The offset angle? Value is calculated according to the formula? =? / 2 * 1 / L,
The l value is a value obtained by converting the number of pixels in the vertical axis direction from the center of the face of the subject to the face of the face among the images photographed by the camera,
The L value is a value obtained by converting the total number of pixels in the vertical axis direction of the image into a distance,
Wherein the elongation of the subject to which the offset angle is applied is calculated according to a formula of Y = y + tan (? +?) X.
Wherein the camera is mounted on a cylinder drive unit capable of height adjustment.
Wherein the control unit controls the cylinder driving unit so that the angle of the angle adjusting unit is a minimum value with respect to a horizontal horizontal line with the ground, and recognizes the height of the camera at this time.
Wherein the controller further comprises an operation unit that receives the height, the angle, and the distance and calculates an elongation of the subject.
Wherein the control unit further comprises a display unit for displaying an elongation of the subject.
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KR20100133284A (en) * | 2009-06-11 | 2010-12-21 | (주)로봇에버 | Method and apparatus for measuring height by recognizing face |
KR101169151B1 (en) | 2010-04-27 | 2012-07-30 | 주식회사 바이오스페이스 | Apparatus for measuring a person's height information |
KR20120097978A (en) * | 2011-02-28 | 2012-09-05 | 노틸러스효성 주식회사 | Robot kiosk with automatic height adjustment |
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