CN111768492A - Virtual fitting system - Google Patents

Virtual fitting system Download PDF

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Publication number
CN111768492A
CN111768492A CN202010518148.XA CN202010518148A CN111768492A CN 111768492 A CN111768492 A CN 111768492A CN 202010518148 A CN202010518148 A CN 202010518148A CN 111768492 A CN111768492 A CN 111768492A
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CN
China
Prior art keywords
human body
electromagnetic waves
receiving
antenna
bearing part
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Pending
Application number
CN202010518148.XA
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Chinese (zh)
Inventor
田广
吴强
崔振茂
安健飞
成彬彬
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Shanghai High Tech Industrial Development Co ltd
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Shanghai High Tech Industrial Development Co ltd
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Priority to CN202010518148.XA priority Critical patent/CN111768492A/en
Publication of CN111768492A publication Critical patent/CN111768492A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00Three dimensional [3D] modelling, e.g. data description of 3D objects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • G01B15/04Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/89Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00Indexing scheme for image data processing or generation, in general
    • G06T2200/08Indexing scheme for image data processing or generation, in general involving all processing steps from image acquisition to 3D model generation

Abstract

The present application relates to a virtual fitting system. The system comprises a servo assembly, a bearing part, an antenna assembly and computing equipment, wherein the servo assembly is connected with the bearing part, the antenna assembly is arranged on the bearing part, and the antenna assembly is in communication connection with the computing equipment; the servo assembly is used for driving the bearing part to rotate around the human body and sending position information to the antenna assembly; the antenna assembly is used for receiving the position information, transmitting electromagnetic waves to a human body when the position information meets a preset condition, receiving the electromagnetic waves reflected by the human body, converting the electromagnetic waves reflected by the human body into an adjusting signal, and sending the adjusting signal to the computing equipment, wherein the electromagnetic waves are millimeter waves or terahertz waves; and the calculating equipment is used for receiving the adjusting signal, calculating the size of the human body according to the adjusting signal, and screening out a target clothes label matched with the size of the human body from a pre-stored clothes size set. The fitting process can be simplified by adopting the fitting system.

Description

Virtual fitting system
Technical Field
The application relates to the technical field of computers, in particular to a virtual fitting system.
Background
In daily life, people often have a demand for purchasing clothes, and people need to know whether the size of the clothes is suitable for themselves when purchasing the clothes.
In the traditional method, people can know whether the size of the clothes is suitable for themselves by a direct try-on method.
However, the direct try-on method requires the user to repeatedly put on and take off the clothes, which directly causes the operation to be cumbersome.
Disclosure of Invention
In view of the above, it is desirable to provide a virtual fitting system that can simplify operations.
A virtual fitting system comprises a servo assembly, a bearing part, an antenna assembly and computing equipment, wherein the servo assembly is connected with the bearing part, the antenna assembly is arranged on the bearing part, and the antenna assembly is in communication connection with the computing equipment;
the servo assembly is used for driving the bearing part to rotate around a human body and sending position information to the antenna assembly, and the position information is used for representing the rotation angle of the bearing part;
the antenna assembly is used for receiving the position information, transmitting electromagnetic waves to the human body when the position information meets a preset condition, receiving the electromagnetic waves reflected by the human body, converting the electromagnetic waves reflected by the human body into an adjusting signal, and sending the adjusting signal to the computing equipment, wherein the electromagnetic waves are millimeter waves or terahertz waves;
the calculating device is used for receiving the adjusting signal, calculating the size of the human body according to the adjusting signal, and screening out a target clothes label matched with the size of the human body from a pre-stored clothes size set, wherein the clothes size set comprises a plurality of groups of clothes labels and corresponding relations of clothes sizes.
In one embodiment, the computing device is specifically configured to:
for the adjusting signal, obtaining three-dimensional point cloud data of the human body by using a wave number domain three-dimensional distance migration algorithm;
performing surface fitting on the three-dimensional point cloud data of the human body to obtain a three-dimensional model of the human body;
acquiring the size of the human body according to the three-dimensional model of the human body;
and screening out target clothes matched with the size of the human body from the pre-stored clothes size set.
In one embodiment, the computing device is further configured to:
calculating the difference between the size of the human body and each clothes size in the clothes size set;
and outputting the difference between the size of the human body and each clothes size in the clothes size set.
In one embodiment, the bearing part is a vertical beam, the antenna assembly comprises a transmitting antenna array and a receiving antenna array, the transmitting antenna array comprises a plurality of transmitting antennas distributed in the vertical direction, and the receiving antenna array comprises a plurality of receiving antennas distributed in the vertical direction;
the transmitting antenna is used for transmitting electromagnetic waves to the human body;
the receiving antenna is used for receiving the electromagnetic waves reflected by the human body.
In one embodiment, the antenna assembly further comprises a frequency source unit;
the frequency source unit is used for generating electromagnetic waves;
the transmitting antenna is specifically used for transmitting the electromagnetic wave generated by the frequency source unit.
In one embodiment, the antenna assembly further comprises a down-conversion receiving unit and a processing unit;
the down-conversion receiving unit is used for performing down-conversion on the frequency of the electromagnetic wave reflected by the human body to obtain an intermediate frequency signal after down-conversion;
the processing unit is configured to perform analog-to-digital conversion and noise filtering on the down-converted intermediate frequency signal to obtain an adjustment signal, and send the adjustment signal to the computing device.
In one embodiment, the antenna assembly further comprises a processing unit;
the processing unit is used for receiving the position information and controlling the frequency source unit to generate electromagnetic waves when the position information meets the preset condition.
In one embodiment, the processing unit is specifically configured to control the frequency source unit to generate the electromagnetic wave when the rotation angle of the bearing portion increases by a preset angle value.
In one embodiment, the processing unit is specifically configured to control the frequency source unit to stop generating the electromagnetic wave when the rotation angle of the bearing part reaches a preset threshold.
In one embodiment, the antenna assembly includes a processing unit,
the processing unit is used for controlling the plurality of transmitting antennas and the plurality of receiving antennas to be opened in sequence so as to enable the opened transmitting antennas to transmit electromagnetic waves to the human body and enable the opened receiving antennas to receive the electromagnetic waves reflected by the human body.
In one embodiment, the system further comprises a beam;
the beam is used for connecting the servo assembly and the bearing part.
In one embodiment, the servo assembly includes an encoder;
the encoder is used for encoding the rotation angle of the bearing part to obtain the position information.
In one embodiment, the system further comprises a protective enclosure;
the protective casing is used for accommodating the servo assembly, the bearing part and the antenna assembly.
The virtual fitting system comprises a servo assembly, a bearing part, an antenna assembly and computing equipment, wherein the servo assembly is connected with the bearing part, the antenna assembly is arranged on the bearing part, and the antenna assembly is in communication connection with the computing equipment; the servo assembly is used for driving the bearing part to rotate around a human body and sending position information to the antenna assembly, and the position information is used for representing the rotation angle of the bearing part; the antenna assembly is used for receiving the position information, transmitting electromagnetic waves to the human body when the position information meets a preset condition, receiving the electromagnetic waves reflected by the human body, converting the electromagnetic waves reflected by the human body into an adjusting signal, and sending the adjusting signal to the computing equipment, wherein the electromagnetic waves are millimeter waves or terahertz waves; the calculating device is used for receiving the adjusting signal, calculating the size of the human body according to the adjusting signal, and screening out a target clothes label matched with the size of the human body from a pre-stored clothes size set, wherein the clothes size set comprises a plurality of groups of clothes labels and corresponding relations of clothes sizes. Because the virtual fitting system that this application provided can be to human transmission millimeter wave or terahertz wave, and millimeter wave and terahertz wave have can pierce through the clothing but can not pierce through the characteristic of human skin, consequently the virtual fitting system that this application provided can avoid the interference of external clothing, directly accurately record the size of human body itself, and is further, the computational equipment can be in the clothing size set of storing in advance screening and the clothing of human size matching, the loaded down with trivial details problem of operation that brings because the clothing of wearing and taking off repeatedly when having avoided the clothing of trying on, the operation of fitting process has been simplified.
Drawings
FIG. 1 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of three-dimensional point cloud data of a human body according to an embodiment of the present application;
FIG. 3 is a schematic representation of a three-dimensional model of a human body provided in one embodiment of the present application;
FIG. 4 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
FIG. 5 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
FIG. 6 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
FIG. 7 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
FIG. 8 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
FIG. 9 is a system architecture diagram of a virtual fitting system provided in accordance with an embodiment of the present application;
fig. 10 is a system architecture diagram of a virtual fitting system provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the embodiment of the present application, as shown in fig. 1, a virtual fitting system is provided, the system includes a servo component 101, a carrying part 102, an antenna component 103, and a computing device 104, the servo component 101 is connected to the carrying part 102, the antenna component 103 is disposed on the carrying part 102, and there is a communication connection between the antenna component 103 and the computing device 104.
The servo unit 101 and the carrier 102 described in the present application may be connected to each other, and the servo unit 101 and the carrier 102 may be directly connected to each other or indirectly connected to each other. The antenna assembly 103 described in the present application is disposed on the carrier 102, and may mean that the antenna assembly 103 is directly disposed on the carrier 102, and both are an undetachable whole; it can also be said that there are two separate components between the antenna component 103 and the carrier 102, and the two components can be connected to each other in a matching manner, so that the antenna component 103 is disposed on the carrier 102.
In the embodiment of the present application, the servo assembly 101 may follow an external command to perform a desired movement, and the movement elements thereof may include physical quantities such as a position, a speed, and a moment. The external motion element fed back by the servo component 101 in this application may be a mechanical displacement, a displacement velocity or an acceleration, etc., the servo component 101 is used to make the output external motion element accurately track the input displacement, the input displacement mentioned herein may be an external command input by a person, for example, the external command may be input to the servo component 101 by the person through the computing device 104, and the servo component 101 and the computing device 104 may be in a wired or wireless communication connection.
The servo assembly 101 is configured to drive the bearing portion 102 to rotate around a human body, and send position information to the antenna assembly 103, where the position information is used to represent a rotation angle of the bearing portion 102.
In this embodiment of the application, after receiving the external command, the servo motor 101 may move according to the rotation angular velocity indicated in the external command, so as to drive the bearing portion 102 to rotate clockwise or counterclockwise around the human body. The term moving around the body as used in this application refers to moving around a target area, which may be a carrier. The target area may also be a predefined area range. The human body can stand in the target area, and when the servo assembly 101 drives the bearing part 102 to rotate around the target area, it is equivalent to that the servo assembly 101 drives the bearing part 102 to rotate around the human body.
It should be noted that the distance between the vertical central axis of the bearing portion 102 and the vertical central axis of the target area is greater than a first preset distance threshold, and the distance between the end of the bearing portion 102 close to the ground and the ground is greater than a second preset distance threshold, which is set to prevent the bearing portion 102 from touching the human body in the target area or touching the ground when rotating around the target area, thereby causing injury to the human body, damage to components, and measurement failure.
In the embodiment of the present application, the servo assembly 101 and the antenna assembly 103 may communicate with each other in a wired or wireless manner. When wired communication is provided between the servo assembly 101 and the antenna assembly 103, the servo assembly 101 and the antenna assembly 103 may be connected by a data transmission line. When wireless communication is performed between the servo assembly 101 and the antenna assembly 103, radio frequency devices are respectively present on the servo assembly 101 and the antenna assembly 103, so that wireless communication can be performed between the servo assembly 101 and the antenna assembly 103.
When the servo assembly 101 drives the carrier 102 to rotate around the human body, the servo assembly 101 transmits the rotation angle of the carrier 102 to the antenna assembly 103 through wired communication or wireless communication with the antenna assembly 103, and the rotation angle may represent the rotation angle of the carrier 102 relative to the position where the carrier 102 is located before the rotation starts.
The antenna assembly 103 is configured to receive the position information, transmit an electromagnetic wave to the human body when the position information satisfies a preset condition, receive the electromagnetic wave reflected by the human body, convert the electromagnetic wave reflected by the human body into an adjustment signal, and send the adjustment signal to the computing device 104, where the electromagnetic wave is a millimeter wave or a terahertz wave.
After the antenna assembly 103 receives the position information, the antenna assembly 103 determines the received position information to determine whether to transmit the electromagnetic wave to the human body. For example, the steps of emitting electromagnetic waves to the human body and receiving electromagnetic waves reflected by the human body may be performed when the antenna assembly 103 detects that the carrier part 102 rotates every 0.5 degrees. In the process that the bearing part 102 rotates around the human body, the antenna assembly 103 can perform operations of transmitting electromagnetic waves to the human body and receiving electromagnetic waves reflected by the human body for multiple times, so that the human body can be scanned in all directions, and all-directional scanning data of the human body can be acquired.
In the embodiment of the present application, the electromagnetic wave emitted to the human body is a millimeter wave or a terahertz wave, and the millimeter wave refers to an electromagnetic wave having a frequency of 30GHz to 300GHz and a wavelength of 1 mm to 10 mm. The millimeter wave is in the overlapping wavelength range of microwave and far infrared wave, so that it has the characteristics of two wave spectrums. Terahertz waves refer to electromagnetic waves having a frequency in the range of 0.1THz to 10THz, and a wavelength of approximately 0.03 mm to 3 mm, which is between microwave and infrared.
Millimeter waves have good penetration into many dielectric materials and non-polar substances and can penetrate any insulating material, including almost every cloth and most kinds of building materials. Terahertz radiation can penetrate through substances such as cloth, ceramics, fat, carbon plates, plastics and the like with very small attenuation, and can perform perspective imaging on opaque objects.
After emitting millimeter waves or terahertz waves to a human body and receiving the millimeter waves or terahertz waves reflected by the human body, the antenna assembly 103 adjusts the electromagnetic waves reflected by the human body, and specific adjustment may include operations such as analog-to-digital conversion, frequency modulation, and filtering, and then obtains an adjustment signal, and the adjustment signal is sent to the computing device 104.
The computing device 104 is configured to receive the adjustment signal, calculate the size of the human body according to the adjustment signal, and screen out a target clothing label matching the size of the human body from a pre-stored clothing size set, where the clothing size set includes a plurality of sets of corresponding relationships between clothing labels and clothing sizes.
The computing device 104 may establish a three-dimensional model of the human body according to the adjustment signal, and then obtain the size of the human body according to the three-dimensional model of the human body, where the obtained size of the human body may include a neck circumference, a waist circumference, a chest circumference, a thigh circumference, a calf circumference, and the like of the human body, and correspondingly, the size of the clothes in the clothes size set may include the size of the position of the clothes corresponding to each part of the human body, which is convenient for screening and matching.
The virtual fitting system comprises a servo component 101, a bearing part 102, an antenna component 103 and a computing device 104, wherein the servo component 101 is connected with the bearing part 102, the antenna component 103 is arranged on the bearing part 102, and the antenna component 103 is in communication connection with the computing device 104; the servo component 101 is configured to drive the bearing part 102 to rotate around a human body, and send position information to the antenna component 103, where the position information is used to represent a rotation angle of the bearing part 102; the antenna assembly 103 is configured to receive the position information, transmit an electromagnetic wave to the human body when the position information meets a preset condition, receive the electromagnetic wave reflected by the human body, convert the electromagnetic wave reflected by the human body into an adjustment signal, and send the adjustment signal to the computing device 104, where the electromagnetic wave is a millimeter wave or a terahertz wave; the computing device 104 is configured to receive the adjustment signal, calculate the size of the human body according to the adjustment signal, and screen out a target clothing label matching the size of the human body from a pre-stored clothing size set, where the clothing size set includes a plurality of sets of corresponding relationships between clothing labels and clothing sizes. Because the virtual fitting system that this application provided can be to human transmission millimeter wave or terahertz wave, and millimeter wave and terahertz wave have can pierce through the clothing but can not pierce through the characteristic of human skin, therefore the virtual fitting system that this application provided can avoid the interference of external clothing, directly measure the size of human body itself accurately, and is further, calculating equipment 104 can screen the clothing that matches with human size in the clothing size set of prestoring, because the loaded down with trivial details problem of operation that brings of wearing and taking off the clothing repeatedly when having avoided the clothing of trying on, the operation of fitting process has been simplified.
Optionally, in this embodiment of the application, the computing device 104 is specifically configured to: for the adjusting signal, obtaining three-dimensional point cloud data of the human body by using a wave number domain three-dimensional distance migration algorithm; performing surface fitting on the three-dimensional point cloud data of the human body to obtain a three-dimensional model of the human body; acquiring the size of the human body according to the three-dimensional model of the human body; and screening out target clothes matched with the size of the human body from the pre-stored clothes size set. Referring to fig. 2, a schematic diagram of three-dimensional point cloud data of a human body is given. Referring to fig. 3, a schematic diagram of a three-dimensional model of a human body is given.
The three-dimensional model of the human body finally obtained after the millimeter wave or the terahertz wave is emitted to the human body and the millimeter wave or the terahertz wave reflected by the human body is received can be seen to remove the interference of external clothes, and accurately show the form of the human body.
Optionally, in this embodiment of the present application, the computing device 104 is further configured to: calculating the difference between the size of the human body and each clothes size in the clothes size set; and outputting the difference between the size of the human body and each clothes size in the clothes size set.
In the present embodiment, the computing device 104 may filter the set of clothing sizes for target clothing that matches the size of the human body. It is also possible to output the difference between the size of the human body and the size of each laundry. In practical application, a customer can select clothes to be tried on the computing device 104, then the size of the human body of the customer is measured by using the virtual fitting system provided by the application, and finally the computing device 104 can output the difference value between the size of the human body of the customer and the size of the clothes to be tried on by the customer, so that the customer can conveniently know whether the clothes to be tried on are suitable for the customer, and the complex operation of putting on and taking off the clothes and trying on the clothes is not needed.
Optionally, in this embodiment of the application, the carrying part 102 is a vertical beam, please refer to fig. 4, the antenna assembly 103 includes a transmitting antenna array 1031 and a receiving antenna array 1032, the transmitting antenna array 1031 includes a plurality of transmitting antennas 10311 distributed in a vertical direction, the receiving antenna array 1032 includes a plurality of receiving antennas 10321 distributed in the vertical direction, where the transmitting antennas 10311 are used for transmitting electromagnetic waves to the human body; the receiving antenna 10321 is used for receiving the electromagnetic wave reflected by the human body.
In this embodiment, in the case that the carrying portion 102 is a vertical beam, in order to realize comprehensive scanning of a standing human body, the antenna assembly 103 on the carrying portion 102 includes a plurality of transmitting antennas 10311 and a plurality of receiving antennas 10321 distributed in the vertical direction, a distance between any two adjacent transmitting antennas 10311 and a distance between any two adjacent receiving antennas 10321 are both smaller than a preset threshold, and the preset threshold can be adjusted according to actual requirements, so that the transmitting antennas and the receiving antennas are arranged, so that the carrying portion 102 can not only perform multi-angle scanning around the human body, but also perform multi-layer scanning on the human body in the vertical direction. It should be noted that, in the present application, one side of the bearing part 102 is close to the human body, and the other side is far away from the human body, in the present application, the bearing part 102 is provided with the antenna assembly 103, and the transmitting antenna array and the receiving antenna array on the antenna assembly 103 are disposed on one side of the bearing part 102 close to the human body.
It should be noted that, although the transmitting antenna array 1031 and the receiving antenna array 1032 are arranged side by side on the antenna assembly 103 in the horizontal direction, when the transmitting antenna array 1031 and the receiving antenna array 1032 are arranged side by side, it needs to be noted that the transmitting antennas in the transmitting antenna array 1031 and the receiving antennas in the receiving antenna array 1032 need to be distributed in an offset manner in the corresponding horizontal direction, and when the transmitting antennas and the receiving antennas are distributed in an offset manner, distances between any two adjacent transmitting antennas and receiving antennas are equal. When the antenna assembly works, the transmitting antenna and the receiving antenna on the antenna assembly 103 are sequentially opened from top to bottom, so that the processes of transmitting electromagnetic waves to a human body and receiving the electromagnetic waves returned by the human body are realized.
In this embodiment of the application, by providing the transmitting antenna array 1031 and the receiving antenna array 1032, the transmitting antenna array 1031 includes a plurality of transmitting antennas distributed in the vertical direction, and the receiving antenna array 1032 includes a plurality of receiving antennas distributed in the vertical direction, and a distance between any two adjacent transmitting antennas 10311 and a distance between any two adjacent receiving antennas 10321 are both smaller than a preset threshold, and distances between any two adjacent transmitting antennas and receiving antennas are equal, so that when the carrying part 102 rotates, the human body is scanned in an omnidirectional manner.
Optionally, in the embodiment of the present application, please refer to fig. 5, the antenna assembly 103 further includes a frequency source unit 1033; the frequency source unit 1033 for generating electromagnetic waves; the plurality of transmitting antennas are specifically configured to transmit the electromagnetic waves generated by the frequency source unit 1033.
In the embodiment of the present application, the frequency source unit 1033 is specifically configured to generate millimeter waves or terahertz waves, and specifically, an amplifier, a frequency multiplier, a mixer, a filter, and the like may be present on the frequency source unit 1033. Because the frequency of the millimeter wave or the terahertz wave is high, the frequency source unit 1033 cannot directly generate the millimeter wave or the terahertz wave, when the frequency source unit 1033 generates the millimeter wave or the terahertz wave, generally, a low-frequency or intermediate-frequency electromagnetic wave is generated first, and then the frequency of the low-frequency or intermediate-frequency electromagnetic wave is up-converted, so that the low-frequency or intermediate-frequency electromagnetic wave is up-converted into the millimeter wave or the terahertz wave of the corresponding frequency band. Specifically, the amplifier, the mixer, the frequency multiplier, and the like in the frequency source unit 1033 may be used to up-convert the electromagnetic wave of the low frequency or the intermediate frequency. The frequency source unit 1033 is connected to the transmitting antenna in the transmitting antenna array 1031 and the receiving antenna in the receiving antenna array 1032 through the switch array, so that the transmitting antenna 1032 in the transmitting antenna array 1031 can transmit the millimeter waves or terahertz waves generated by the frequency source unit 1033 to the human body.
In this embodiment, the frequency source unit 1033 may generate low-frequency or intermediate-frequency electromagnetic waves first, and then gradually adjust the low-frequency or intermediate-frequency electromagnetic waves to obtain millimeter waves or terahertz waves with frequencies meeting the requirements, so as to improve the flexibility of obtaining millimeter waves or terahertz waves in this application.
Optionally, in the embodiment of the present application, please refer to fig. 6, the antenna element 103 further includes a down-conversion receiving unit 1034 and a processing unit 1035; the down-conversion receiving unit 1034 is further configured to perform down-conversion on the frequency of the electromagnetic wave reflected by the human body to obtain an intermediate frequency signal after down-conversion; the processing unit 1035 is configured to perform analog-to-digital conversion and noise filtering on the down-converted intermediate frequency signal to obtain an adjustment signal, and send the adjustment signal to the computing device 104.
In the embodiment of the present application, since the millimeter waves or terahertz waves are emitted from the human body, the electromagnetic waves returned from the human body are also millimeter waves or terahertz waves, and the frequencies of the millimeter waves and terahertz waves are high, and a high sampling rate is required, so that the millimeter waves or terahertz waves reflected from the human body can be completely sampled, and thus the millimeter waves or terahertz waves reflected from the human body are converted into digital signals, but in general, since the sampling rate suitable for the high-frequency electromagnetic waves, such as the millimeter waves or terahertz waves, cannot be directly generated, when the receiving antenna receives the millimeter waves or terahertz waves reflected from the human body and transmits the millimeter waves or terahertz waves reflected from the human body to the down-conversion receiving unit 1034 through the switch array and the transmission line, the down-conversion receiving unit 1034 firstly performs frequency modulation on the received millimeter waves or terahertz waves reflected from the human body by, the high-frequency millimeter wave or terahertz wave is converted into a low-frequency or intermediate-frequency analog signal, and the adjusted electromagnetic wave is obtained.
In this embodiment, the down-conversion receiving unit 1034 and the processing unit 1035 may be communicatively connected through a transmission line, the down-conversion receiving unit 1034 may send the down-converted intermediate frequency signal to the processing unit 1035 through the communicative connection with the processing unit 1035, and the processing unit 1035 performs analog-to-digital conversion on the received down-converted intermediate frequency signal to obtain a corresponding digital signal. The processing unit 1035 then performs a noise filtering operation on the obtained digital signal to obtain the above adjustment signal. Specifically, a field programmable gate array chip (english: FPGA) may be present on the processing unit 1035, and then the operation of filtering noise is implemented by the FPGA chip. And the processing unit 1035 will also collect amplitude information and phase information of the obtained digital signals and send the collected amplitude information and phase information to the computing device 104 for the computing device 104 to build a three-dimensional model of the human body, thereby calculating the size of the human body.
In the embodiment of the present application, the millimeter waves or terahertz waves reflected by the human body are adjusted and processed by the down-conversion receiving unit 1034 and the processing unit 1035, so that useful information is finally extracted from the millimeter waves or terahertz waves reflected by the human body to obtain an adjustment signal, and thus the computing device 104 can calculate the size of the human body according to the adjustment signal, thereby improving the accuracy of the present application for data processing.
Optionally, in the present embodiment, the antenna element 103 further comprises a processing unit 1035; the processing unit 1035 is configured to receive the position information, and control the frequency source unit 1034 to generate an electromagnetic wave when the position information satisfies the predetermined condition.
In the embodiment, the antenna assembly 103 includes a processing unit 1035, and there is a wired or wireless communication connection between the processing unit 1035 and the servo assembly 101, specifically, when there is a wired communication connection between the servo assembly 101 and the processing unit 1035, the servo assembly 101 and the processing unit 1035 may be connected through a transmission line; when there is a wireless communication connection between the servo assembly 101 and the processing unit 1035, there may be a radio frequency device on each of the servo assembly 101 and the processing unit 1035, so that the servo assembly 101 and the processing unit 1035 may be wirelessly connected by the radio frequency device.
The processing unit 1035, after receiving the position information, determines whether the position information meets a preset condition, and when the position information meets the preset condition, controls the frequency source unit 1033 to generate an electromagnetic wave, and specifically, the processing unit 1035 may configure parameters for the frequency source unit 1033, so that the frequency source unit 1033 generates a corresponding electromagnetic wave according to the configured parameters, where the configured parameters may include a frequency point, a frequency modulation interval, a transmission power, and the like.
In the embodiment of the present application, the processing unit 1035 determines the position information and configures parameters for the frequency source unit 1034, so that the frequency source unit 1033 can accurately generate the required electromagnetic waves according to the configured parameters.
Optionally, in this embodiment, the processing unit 1035 is specifically configured to control the frequency source unit 1033 to generate electromagnetic waves when the rotation angle of the bearing portion 102 increases by a preset angle value.
In the embodiment of the present application, the processing unit 1035 may receive position information sent by the servo component 101, where the position information indicates a rotation angle of the carrying part 102, and when the processing component determines that the rotation angle of the carrying part 102 increases by a preset value, the processing unit 1035 controls the frequency source unit 1033 to generate a corresponding electromagnetic wave.
For example, the servo component 101 controls the carrier 102 to rotate around the human body at a constant speed, and when the processing unit 1035 detects that the rotation angle of the carrier 102 increases by 0.5 degrees every time, the frequency source unit 1033 is controlled to generate electromagnetic waves, so that the frequency source unit 1033 transmits the electromagnetic waves to the human body through the transmitting antennas in the transmitting antenna array 1031, and receives the electromagnetic waves reflected by the human body through the receiving antennas in the receiving antenna array 1032. Of course, the 0.5 degree described in the present application may be other values, and the preset angle threshold may be adjusted according to actual needs.
In the embodiment of the present application, the processing unit 1035 is used to determine the rotation angle of the bearing part 102, and control the frequency source unit 1033 to generate electromagnetic waves when the rotation angle of the bearing part 102 increases the preset angle value, so that the human body can be scanned in all directions at multiple angles, and the final measured size of the human body is more accurate.
Optionally, in this embodiment, the processing unit 1035 is specifically configured to control the frequency source unit 1033 to stop generating the electromagnetic wave when the rotation angle of the bearing portion 102 reaches a preset threshold.
In the embodiment of the present application, the condition that the frequency source unit 1033 stops generating electromagnetic waves is set, and after the carrying portion 102 rotates around the human body for one circle, it is equivalent to that the human body has completed one complete scan, so that the frequency source unit 1033 can be controlled to stop generating electromagnetic waves at this time. Specifically, when the processing unit 1035 detects that the rotation angle of the supporting portion 102 is greater than or equal to 360 degrees compared to the initial position, the processing unit 1035 controls the frequency source unit 1033 to stop generating the electromagnetic wave. Further, when the processing unit 1035 detects that the rotation angle of the bearing part 102 reaches the preset threshold, for example, the bearing part 102 detects that the rotation angle of the bearing part 102 is greater than or equal to 360 degrees, a stop instruction can be sent to the servo assembly 101 through the communication connection with the servo assembly 101, so that the servo assembly 101 controls the bearing part 102 to stop rotating after receiving the stop instruction.
In the embodiment of the present application, the processing unit 1035 detects the rotation angle of the bearing part 102 and controls the frequency source unit 1033 to stop generating the electromagnetic wave in time, so that repeated scanning of the human body is avoided, and the efficiency of measuring the human body is improved.
Optionally, in this embodiment, the antenna assembly 103 includes a processing unit 1035, and the processing unit 1035 is configured to control the plurality of transmitting antennas 10311 and the plurality of receiving antennas 10321 to be turned on sequentially, so that the turned-on transmitting antennas 10311 emit electromagnetic waves to the human body, and the turned-on receiving antennas 10321 receive the electromagnetic waves reflected by the human body.
In the embodiment of the present application, there are a plurality of vertically distributed transmitting antennas 10311 and receiving antennas 10321 on the antenna assembly 103, and the process of controlling the plurality of transmitting antennas 10311 and the plurality of receiving antennas 10321 to be sequentially turned on by the processing unit 1035 is now exemplified with reference to fig. 6, the processing unit 1035 may turn on a pair of adjacent transmitting antennas and receiving antennas at a time through the switch array, and then the pair of transmitting antennas and receiving antennas that are turned on implement operations of transmitting electromagnetic waves to the human body and receiving electromagnetic waves returned from the human body. Specifically, referring to fig. 7, the processing unit 1035 may turn on the transmitting antenna 10311a and the receiving antenna 10321b through the switch array, and then the transmitting antenna 10311a transmits electromagnetic waves to the human body, and the receiving antenna 10321b receives the electromagnetic waves reflected by the human body; after the transmitting antenna 10311a and the receiving antenna 10321b complete the operations of transmitting electromagnetic waves to the human body and receiving electromagnetic waves reflected by the human body together, the processing unit 1035 will continue to turn on the transmitting antenna 10311a and the receiving antenna 10321c through the switch array, and the transmitting antenna 10311a and the receiving antenna 10321c will complete the operations of transmitting electromagnetic waves to the human body and receiving electromagnetic waves reflected by the human body together, and then the processing unit will turn on the transmitting antenna 10311d and the receiving antenna 10321c through the switch array, and repeat the above operations of transmitting electromagnetic waves to the human body and receiving electromagnetic waves reflected by the human body. In the above manner, the processing unit 1035 controls all the transmitting antennas and the receiving antennas to be turned on in sequence, and multi-slice scanning of the human body is completed.
In this embodiment, the processing unit 1035 may control the plurality of transmitting antennas and the plurality of receiving antennas to be sequentially turned on, so as to scan multiple layers of the human body, and avoid mutual interference caused by the plurality of transmitting antennas and the plurality of receiving antennas when transmitting electromagnetic waves and receiving electromagnetic waves reflected by the human body.
Based on the above embodiments, in the embodiment of the present application, the processing unit 1035 may control the multiple transmitting antennas and the multiple receiving antennas to be sequentially turned on and control the frequency source unit 1033 to generate the electromagnetic wave when detecting that the rotation angle of the bearing part 102 increases by the preset angle value, because the process of controlling the multiple transmitting antennas and the multiple receiving antennas to be sequentially turned on and the process of transmitting the electromagnetic wave to the human body and receiving the electromagnetic wave reflected by the human body are very short, the bearing part 102 may always keep rotating at a constant speed without stopping midway. Of course, in some possible implementations, when the rotation angle of the bearing portion 102 increases by a preset threshold, the servo component 101 may control the bearing portion 102 to stop at the current position, and then the processing unit 1035 controls the plurality of transmitting antennas and the plurality of receiving antennas to turn on in sequence and controls the frequency source unit 1033 to generate electromagnetic waves, so as to implement multi-angle scanning on the human body.
In this embodiment, the processing unit 1035 controls the plurality of transmitting antennas and the plurality of receiving antennas to be sequentially turned on, so that interference caused by electromagnetic waves generated between the plurality of transmitting antennas and the plurality of receiving antennas can be effectively avoided, and accuracy of measurement of the size of the human body by this embodiment is improved.
Optionally, in the embodiment of the present application, please refer to fig. 8, the system further includes a beam 105; the beam 105 is used for connecting the servo assembly 101 and the bearing part 102.
In the embodiment of the present application, the servo assembly 101 is connected to the beam 105, the beam 105 is connected to the bearing portion 102, the beam 105 is perpendicular to the bearing portion 102, wherein a distance between the beam 105 and the ground is greater than a third predetermined distance threshold, and the third predetermined distance threshold is set to prevent a human body from touching the beam 105, which may cause component damage, human body damage or measurement failure.
In the embodiment of the present application, by providing the cross beam 105, the servo assembly 101 can transmit the generated motion behavior to the bearing part 102, so that the bearing part 102 can rotate around the human body, and the practicability of the present application is improved.
Optionally, in the embodiment of the present application, please refer to fig. 9, the servo assembly 101 includes an encoder; the encoder is configured to encode the rotation angle of the carrying portion 102 to obtain the position information.
In this embodiment, the servo assembly 101 includes an encoder, and the encoder can encode the rotation angle of the bearing part 102 again in the process that the servo assembly 101 drives the bearing part 102 to move, and convert the rotation angle into position information which can be transmitted through communication connection.
In the embodiment of the application, the encoder is arranged on the servo assembly 101, so that the rotation angle of the bearing part 102 can be conveniently converted into position information to be transmitted, and the convenience of the application is improved.
Optionally, in the embodiment of the present application, please refer to fig. 10, the system further includes a protective housing 106; the protective housing 106 is used for accommodating the servo assembly 101, the bearing part 102 and the antenna assembly 103.
In the embodiment of the present application, a protective casing 106 is provided, when the apparatus includes a bearing platform 107, the protective casing 106 integrates the servo assembly 101, the beam 105, the bearing platform 107, the bearing part 102 and the antenna assembly 103, and the protective casing 106 can prevent the components from being damaged due to the influence of the external environment. In addition, a wave-absorbing material layer can be arranged on the inner layer of the protective shell 106 and is used for absorbing the electromagnetic waves emitted by the antenna component 103, so that the electromagnetic waves emitted by the antenna component 103 are prevented from being returned by the inner layer of the protective shell 106, and finally, the interference on the measurement of the human body size is avoided.
In the embodiment of the application, by arranging the protective casing 106, the virtual trial provided by the application is better in integrity of the system, and is more convenient to use, and further, the wave-absorbing material layer is arranged, so that the generation of interference electromagnetic waves is avoided, and the accuracy of measurement on the size of a human body is improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. A virtual fitting system is characterized by comprising a servo assembly, a bearing part, an antenna assembly and computing equipment, wherein the servo assembly is connected with the bearing part, the antenna assembly is arranged on the bearing part, and communication connection exists between the antenna assembly and the computing equipment;
the servo assembly is used for driving the bearing part to rotate around a human body and sending position information to the antenna assembly, and the position information is used for representing the rotation angle of the bearing part;
the antenna assembly is used for receiving the position information, transmitting electromagnetic waves to the human body when the position information meets a preset condition, receiving the electromagnetic waves reflected by the human body, converting the electromagnetic waves reflected by the human body into an adjusting signal, and sending the adjusting signal to the computing equipment, wherein the electromagnetic waves are millimeter waves or terahertz waves;
the calculation equipment is used for receiving the adjustment signal, calculating the size of the human body according to the adjustment signal, and screening out a target clothes label matched with the size of the human body from a pre-stored clothes size set, wherein the clothes size set comprises a plurality of groups of clothes labels and corresponding relations of clothes sizes.
2. The system of claim 1, wherein the computing device is specifically configured to:
obtaining three-dimensional point cloud data of the human body by utilizing a wave number domain three-dimensional distance migration algorithm for the adjusting signal;
performing surface fitting on the three-dimensional point cloud data of the human body to obtain a three-dimensional model of the human body;
acquiring the size of the human body according to the three-dimensional model of the human body;
and screening out target clothes matched with the size of the human body from the pre-stored clothes size set.
3. The system of claim 1, wherein the computing device is further configured to:
calculating a difference between the size of the human body and each garment size in the set of garment sizes;
outputting a difference between the size of the human body and each of the clothes sizes in the set of clothes sizes.
4. The system of claim 1, wherein the carrier is a vertical beam, the antenna assembly comprises a transmit antenna array and a receive antenna array, the transmit antenna array comprises a plurality of transmit antennas distributed in a vertical direction, and the receive antenna array comprises a plurality of receive antennas distributed in the vertical direction;
the transmitting antenna is used for transmitting electromagnetic waves to the human body;
the receiving antenna is used for receiving the electromagnetic waves reflected by the human body.
5. The system of claim 4, wherein the antenna assembly further comprises a frequency source unit;
the frequency source unit is used for generating electromagnetic waves;
the transmitting antenna is specifically used for transmitting the electromagnetic wave generated by the frequency source unit.
6. The system of claim 5, wherein the antenna assembly further comprises a down-conversion receiving unit and a processing unit;
the down-conversion receiving unit is used for performing down-conversion on the frequency of the electromagnetic waves reflected by the human body to obtain an intermediate frequency signal after down-conversion;
and the processing unit is used for performing analog-to-digital conversion and noise filtering on the intermediate frequency signal after the down-conversion to obtain an adjusting signal and sending the adjusting signal to the computing equipment.
7. The system of claim 5, wherein the antenna assembly further comprises a processing unit;
and the processing unit is used for receiving the position information and controlling the frequency source unit to generate electromagnetic waves when the position information meets the preset condition.
8. The system according to claim 7, wherein the processing unit is specifically configured to control the frequency source unit to generate the electromagnetic wave for each increment of a predetermined angle value in the rotation angle of the carrying portion.
9. The system according to claim 7, wherein the processing unit is specifically configured to control the frequency source unit to stop generating the electromagnetic wave when the rotation angle of the carrying part reaches a preset threshold.
10. The system of claim 1, wherein the antenna assembly comprises a processing unit,
the processing unit is used for controlling the plurality of transmitting antennas and the plurality of receiving antennas to be opened in sequence so as to enable the opened transmitting antennas to transmit electromagnetic waves to the human body and enable the opened receiving antennas to receive the electromagnetic waves reflected by the human body.
11. The system of claim 1, further comprising a cross beam;
the crossbeam is used for connecting the servo assembly and the bearing part.
12. The system of claim 1, wherein the servo assembly comprises an encoder;
and the encoder is used for encoding the rotation angle of the bearing part to obtain the position information.
13. The system of claim 1, further comprising a protective housing,
the protective shell is used for accommodating the servo assembly, the bearing part and the antenna assembly.
CN202010518148.XA 2020-06-09 2020-06-09 Virtual fitting system Pending CN111768492A (en)

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