System and method for assessing dynamic wrinkles on keratin substances of user to be tested

Abstract

The present disclosure relates to systems and methods for assessing dynamic wrinkles on keratin substances of a user to be tested. The system (100) comprises: a positioning device (101) configured to position a user; an image acquisition device (102) comprising a first computing circuit configured to simultaneously obtain images related to facial expressions of the user from various directions; a computing device (103) configured to couple with the image acquisition device (102), the computing device (103) comprising a memory (103a) and a processor (103b), where the memory (103a) stores the image and the processor (103b) comprises a second computing circuit configured to process the image to evaluate the dynamic wrinkles. The system and method can simultaneously provide an integrated solution for image capture, relocation and storage; a promising dynamic wrinkle assessment is performed and a clinical rating about dynamic wrinkles is obtained.

Description

Technical Field

[0001] The present disclosure relates to the field of processing images. More specifically, the present disclosure relates to a system and method for evaluating dynamic wrinkles on a keratinous substance of a user to be tested. Background Art

[0002] Expressions are very frequent in daily life and play an important role in observing signs of aging for progeria users in particular. The pattern of expression lines predicts the pattern of future lasting wrinkles. Progeria users are prone to have dynamic lines due to facial expressions or tactile gestures. Repetitive facial movements cause the skin to be stretched, and previous studies have shown that the pattern of expression lines predicts the pattern of future lasting wrinkles. As the need for cosmetic evaluation increases, it is crucial to establish a user-relevant, standardized, and real-life evaluation method to better study and document these changes. However, the prior art does not have such a solution.

[0003] Therefore, there is a need to develop an effective and objective all-in-one solution to assess real-time changes in a consumer's dynamic wrinkles and / or assess clinical grading on a consumer's dynamic wrinkles. Summary of the invention

[0004] This Summary is provided to introduce selected concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0005] Various aspects and features of the disclosure are described in further detail below.

[0006] According to a first aspect of the present disclosure, a system for evaluating dynamic wrinkles on a keratin material of a user to be tested is provided, wherein the system comprises: a positioning device configured to position the user; an image acquisition device comprising a first computing circuit configured to simultaneously obtain images related to the user's facial expression from various directions; a computing device configured to be coupled to the image acquisition device, the computing device comprising a memory and a processor, wherein the memory stores the images, and the processor comprises a second computing circuit configured to process the images to evaluate dynamic wrinkles.

[0007] In one embodiment of the first disclosure, the positioning device includes: a head holder configured to hold the head and ears of the user; and a height ruler configured to define the height of the head of the user.

[0008] In one embodiment of the first disclosure, the computing device further comprises a component for achieving a fold-over effect of images between different shooting times in real time, and the positioning device is further configured to reposition the user to achieve the fold-over effect.

[0009] In one embodiment of the first disclosure, the image acquisition device includes at least two high-speed cameras configured to simultaneously obtain continuous images related to facial expressions from at least two different sides of the user.

[0010] In one embodiment of the first disclosure, the image acquisition device includes three high-speed cameras configured to simultaneously obtain continuous images related to facial expressions from the front, left and right sides of the user.

[0011] In one embodiment of the first disclosure, the system further includes a shelf configured to hold each camera, wherein the shelf can be adjusted to change a shooting angle of each camera.

[0012] In one embodiment of the first disclosure, the processor includes a second computing circuit configured to also process the image to obtain a clinical grading of dynamic wrinkles and / or also process the image to obtain an evolution of dynamic wrinkles with facial expressions.

[0013] According to a second aspect of the present disclosure, there is provided a method for evaluating dynamic wrinkles on a keratin material of a user to be tested, the method comprising the following steps: I) positioning the user; II) simultaneously obtaining images related to the user's facial expressions from various directions; III) storing the images; and IV) processing the images to evaluate dynamic wrinkles.

[0014] In one embodiment of the second disclosure, step I includes holding the head and ears of the user; and limiting the height of the head of the user.

[0015] In an embodiment of the second disclosure, step I further includes repositioning the user to achieve a ghosting effect of images between different shooting times in real time.

[0016] In an embodiment of the second disclosure, step II further includes simultaneously obtaining continuous images related to facial expressions from the front, left and right sides of the user at a high speed.

[0017] In one embodiment of the second disclosure, step II further comprises changing a shooting angle of each camera by adjusting a stand configured to hold each camera.

[0018] In an embodiment of the second disclosure, step III further comprises processing the image to obtain a clinical grading of dynamic wrinkles and / or processing the image to obtain the evolution of dynamic wrinkles with facial expressions.

[0019] According to a third aspect of the present disclosure, there is provided an apparatus for assessing dynamic wrinkles on a keratinous material of a user to be tested, comprising means for performing the steps of the method according to the second aspect of the present disclosure.

[0020] According to a fourth aspect of the present disclosure, a computer-readable medium is provided, on which instructions are stored. When the instructions are executed, a computing device performs the steps of the method according to the second aspect of the present disclosure.

[0021] The present disclosure can simultaneously provide an integrated solution for image capture, repositioning, and storage; perform promising dynamic wrinkle assessment, and obtain clinical grading on dynamic wrinkles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By way of example, the above and other aspects, features and benefits of various embodiments of the present disclosure will become more fully apparent from the following detailed description with reference to the accompanying drawings, in which the same reference numerals or letters are used to designate the same or equivalent elements. The accompanying drawings are illustrated to facilitate a better understanding of the embodiments of the present disclosure and are not necessarily drawn to scale, in which:

[0023] Figure 1 A block diagram of a system 100 for evaluating dynamic wrinkles on a keratinous material of a user to be tested according to a first aspect of the present disclosure is illustrated.

[0024] Figure 2 A first example of applying the system 100 according to the present disclosure is illustrated.

[0025] Figure 3 A second example of applying the system 100 according to the present disclosure is illustrated.

[0026] Figure 4 A flow chart illustrating a method 400 of assessing dynamic wrinkles on a keratinous material of a user to be tested according to the second aspect of the present disclosure. DETAILED DESCRIPTION

[0027] The embodiments herein will be described in detail below with reference to the accompanying drawings in which the embodiments are shown. However, these embodiments herein can be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. The elements of the accompanying drawings are not necessarily proportional to each other. The same numbers always refer to the same elements.

[0028] The terms used herein are only for the purpose of describing specific embodiments and are not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to also include the plural forms, unless the context clearly indicates otherwise. It will be further understood that when the terms "comprise", "include", "comprising", "having" are used herein, the existence of the stated features, integers, steps, operations, elements and / or components is specified, but the existence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof is not excluded.

[0029] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood. It will be further understood that the terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the relevant art, and should not be interpreted as an idealized or overly formal meaning unless explicitly defined herein.

[0030] The present technology is described below with reference to the block diagram and / or flow chart of the method, device (system) and / or computer program product according to the present embodiment. It is to be understood that the blocks in the block diagram and / or flow chart and the combination of the blocks in the block diagram and / or flow chart can be implemented by computer program instructions. These computer program instructions can be provided to a processor, controller or control unit of a general-purpose computer, a special-purpose computer and / or other programmable data processing device to produce a machine so that the instructions executed by the processor of the computer and / or other programmable data processing device create a device for implementing the function / action specified in the block diagram and / or one or more flow chart blocks.

[0031] Thus, the present technology may be embodied in hardware and / or software (including firmware, resident software, microcode, etc.). Furthermore, the present technology may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this document, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

[0032] Embodiments herein will be described below with reference to the accompanying drawings.

[0033] The concept of the present invention is to provide an all-in-one assessment solution for capturing standard, real-time and multi-directional dynamic images and videos for dynamic wrinkle assessment and facial expression analysis.

[0034] Figure 1A block diagram of a system 100 for evaluating dynamic wrinkles on a keratinous material of a user to be tested according to a first aspect of the present disclosure is illustrated.

[0035] The system 100 includes: a positioning device 101, which is configured to position a user; an image acquisition device 102, which includes a first computing circuit, which is configured to simultaneously obtain images related to the user's facial expression from all directions; and a computing device 103, which is configured to be coupled to the image acquisition device 102, the computing device 103 includes a memory 103a and a processor 103b, wherein the memory stores the image, and the processor includes a second computing circuit configured to process the image to evaluate dynamic wrinkles.

[0036] In a preferred embodiment, the positioning device 101 includes: a head holder configured to hold the user's head and ears; and a height gauge configured to define the height of the user's head. Such a head holder and such a height gauge may be separate components or integrated racks. With such an arrangement, the user can be positioned for the first time in the height direction and the left-right direction so that the user can be stable when the user is photographed by the image acquisition device 102. In another preferred embodiment, the user can be repositioned by a component included in the computing device 103 for achieving a ghosting effect of images between different shooting times in real time. More specifically, after the user is positioned for the first time, the image acquisition device 102 obtains a plurality of first images of the user at a first time point to be viewed by an operator of the computing device 103; then, the image acquisition device 102 obtains a plurality of second images of the user at a second time point to be viewed by the operator of the computing device 103. If the operator of the computing device 103 finds that the boundaries of the plurality of first images and the boundaries of the plurality of second images are not aligned with each other by the component included in the computing device 103 for realizing the ghosting effect of images between different shooting times in real time, the user can be repositioned by adjusting the head holder and the height ruler so that the ghosting effect of images between different shooting times can be realized in real time. During the repositioning process, first, the user to be tested is fine-tuned by adjusting the angle and position of the face. Then, if necessary, the height of the head, ears, etc. is further fine-tuned. Such multiple repositioning processes can help the operator obtain consistent images at different time points, which is crucial for the image evaluation method of cosmetics.

[0037] In a preferred embodiment, the image acquisition device 103 includes at least two high-speed cameras, which are configured to simultaneously obtain continuous images related to facial expressions from at least two different sides of the user. In another preferred embodiment, the image acquisition device 103 includes three high-speed cameras, which are configured to simultaneously obtain continuous images related to facial expressions from the front, left and right sides of the user. That is, the first high-speed camera is located at the front side of the user, the second high-speed camera is located at the left side of the user, and the third high-speed camera is located at the right side of the user. Such three high-speed cameras can obtain continuous images related to facial expressions from three directions.

[0038] The high-speed camera can capture continuous images at high speed through a computing device, and the images can be converted into a video as a form of demonstration for anyone to watch and analyze later. Through voice and video instructions from the operator, the user to be tested is guided to perform facial expressions consistently at different time points. For example, during the process of capturing images, the user can relax his / her facial muscles, keep them relaxed, and make the following expressions: smile, grin, raise your eyes, angry, etc. Through such three high-speed cameras, continuous images from neutral expressions to different expressions (such as smile, grin, raise your eyes, angry) can be captured at different time points. In one example of the present disclosure, the term "high speed" can be such as at least 1000 frames per second, 2 billion frames per second, etc.; however, in the context of the present disclosure, the "high speed" in the present disclosure is not limited to such values, but can be set by the user as needed.

[0039] In a preferred embodiment, each such camera can be located in a designed and adjustable stand that can be adjusted to flexibly change the shooting angle of each camera. Such a stand has an adjustable component to easily adjust the shooting angle of the camera.

[0040] The computing device 103 is configured to be coupled with the image acquisition device 102 via a wireless connection such as WIFI, Bluetooth or a wireless connection such as a cable. An instant preview and images of different views can be observed on a display of the computing device 103. A memory 103a included in the computing device 103 stores the obtained images in real time. A processor 103b included in the computing device 103 can analyze the obtained images to evaluate dynamic wrinkles.

[0041] In a preferred embodiment, the processor 103b can analyze the obtained images to obtain the evolution of dynamic wrinkles with facial expressions. In one example, a region of interest is selected from the obtained images from neutral expression to maximum expression; such region of interest is analyzed to obtain the evolution of dynamic wrinkles. Of course, the present disclosure is not limited to such examples.

[0042] In another preferred embodiment, the processor 103b can analyze the obtained image to obtain a clinical grade for dynamic wrinkles. In one example, the clinical grade is obtained by a dermatologist based on an aging atlas or by applying artificial intelligence technology to the obtained image. Of course, the present disclosure is not limited to such examples.

[0043] The computing device 103 can be, for example, a server of a service provider, a device associated with a client (e.g., a client device), a system on a chip, and / or any other suitable computing device or computing system. In various embodiments, the computing device 103 can be in various configurations. For example, the computing device 103 can be implemented as a computer-like device, including a personal computer, a desktop computer, a multi-screen computer, a laptop computer, a netbook, etc. The computing device 103 can also be implemented as a mobile device-like device, including mobile devices such as mobile phones, portable music players, portable game devices, tablet computers, multi-screen computers, etc. The computing device 103 can also be implemented as a TV-like device, which includes having a generally larger screen or being connected to a generally larger screen in a casual viewing environment. These devices include TVs, set-top boxes, game consoles, etc.

[0044] In one embodiment, each computing circuit mentioned in the present disclosure includes, in particular, a processor (e.g., a microprocessor, a quantum processor, a qubit processor, etc.), a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), etc., or any combination thereof, and may include discrete digital or analog circuit elements or electronic devices, or a combination thereof. In one embodiment, each computing circuit mentioned in the present disclosure includes one or more ASICs having a plurality of predefined logic components. In one embodiment, each computing circuit mentioned in the present disclosure includes one or more FPGAs, each FPGA having a plurality of programmable logic components.

[0045] In one embodiment, each computing circuit mentioned in the present disclosure includes one or more electronic circuits, printed circuits, flexible circuits, electrical conductors, electrodes, cavity resonators, conductive traces, ceramic patterned electrodes, electromechanical components, transducers, etc.

[0046] In one embodiment, each computing circuit mentioned in the present disclosure includes one or more components that are operably coupled to each other (e.g., communicatively, electromagnetically, magnetically, ultrasonically, optically, inductively, electrically, capacitively coupled, wirelessly coupled, etc.). In one embodiment, the circuit includes one or more remotely located components. In one embodiment, the remotely located components are operably coupled, for example, via wireless communication. In one embodiment, the remotely located components are operably coupled, for example, via one or more communication modules, receivers, transmitters, transceivers, etc.

[0047] In one embodiment, each computing circuit mentioned in the present disclosure includes, for example, a memory for storing instructions or information. Non-limiting examples of memory include volatile memory (e.g., random access memory (RAM), dynamic random access memory (DRAM), etc.), non-volatile memory (e.g., read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), compact disk read-only memory (CD-ROM), etc.), permanent memory, etc. Other non-limiting examples of memory include erasable programmable read-only memory (EPROM), flash memory, etc. In one embodiment, the memory is coupled to, for example, one or more computing devices via one or more instruction, information, or power buses. In one embodiment, each computing circuit mentioned in the present disclosure includes one or more databases stored in the memory. In one embodiment, each computing circuit mentioned in the present disclosure includes one or more lookup tables stored in the memory.

[0048] In one embodiment, each computing circuit mentioned in the present disclosure includes one or more computer-readable media drives, interface sockets, universal serial bus (USB) ports, memory card slots, etc., and one or more input / output components, such as, for example, a graphical user interface, a display, a keyboard, keys, a trackball, a joystick, a touch screen, a mouse, switches, dials, etc., and any other peripheral devices. In one embodiment, each computing circuit mentioned in the present disclosure includes one or more user input / output components, which are operably coupled to at least one computing device, which is configured to control (electrically, electromechanically, software-implemented, firmware-implemented, or other control, or a combination thereof) at least one parameter associated with determining one or more tissue thermal characteristics, for example, in response to a detected shift in the on-voltage.

[0049] In one embodiment, each computing circuit mentioned in the present disclosure includes: an electrical circuit forming a general-purpose computing device configured by a computer program (e.g., a general-purpose computer configured by a computer program that at least partially executes the processes and / or devices described herein, or a microprocessor configured by a computer program that at least partially executes the processes and / or devices described herein), an electrical circuit forming a memory device (e.g., a form of memory (e.g., random access, flash, read-only, etc.)), an electrical circuit forming a communication device (e.g., a modem, a communication switch, an optoelectronic device, etc.), and / or any non-electrical analog thereto, such as optical or other analogs.

[0050] Through the system 100 , the present disclosure can capture real-time dynamic wrinkles under facial expressions from multiple directions at once in a photo or video format.

[0051] In a preferred embodiment, Figure 2 and Figure 3 As shown in , the system 100 can also evaluate the effectiveness of the cosmetic before and after the cosmetic is used for a predefined period of time.

[0052] Figure 2 A first example of applying the system 100 according to the present invention is illustrated.

[0053] In a first example, the dynamic wrinkles to be tested are crow's feet. System 100 is used to observe the effect of cosmetics on a user before and after the user uses such cosmetics for a predefined period of time. In a first example, the cosmetics may be an anti-wrinkle cream that may be applied to any area of ​​the user's body, and the predefined period of time may be set to four weeks.

[0054] Before using such an anti-wrinkle cream, the image acquisition device 102 obtains a first set of ten consecutive images during the entire process from the user's neutral expression to the user's maximized expression. For example, such a first set of ten consecutive images can be obtained simultaneously from the front, left and right sides of the user by three high-speed cameras with three flashes. Only ten consecutive images are shown, and any number of images can be used in the context of the present disclosure. The memory 103a stores such a first set of ten consecutive images in real time, and analyzes the crow's feet area in these images to obtain ten clinical gradings for the crow's feet area, such as based on the aging atlas. Figure 2 It is shown as a curve with a small inverted triangle.

[0055] Similarly, after such anti-wrinkle cream has been applied for four weeks, during the entire process from the user's neutral expression to the user's maximized expression, the image acquisition device 102 obtains a second set of ten consecutive images. For example, such a second set of ten consecutive images can be obtained simultaneously from the front, left and right sides of the user by three high-speed cameras with three flashes. The memory 103a stores such a second set of ten consecutive images in real time, and analyzes the crow's feet area in these images to obtain ten clinical gradings for the crow's feet area based on the aging atlas, such as Figure 2 It is shown as a curve with small solid points.

[0056] like Figure 2 As shown in , from the comparison between the two curves for T0 and T4w, it can be seen that during the entire process from the user's neutral expression to the user's maximum expression, the ten clinical grades for crow's feet wrinkles were reduced before and after using such an anti-wrinkle cream, and therefore the anti-wrinkle effect for the crow's feet area is obvious.

[0057] Figure 3 A second example of applying the system 100 according to the present invention is illustrated.

[0058] In a second example, the dynamic wrinkles to be tested are nasolabial folds. System 100 is used to observe the effect of cosmetics on a user before and after the user has applied such cosmetics for a predefined period of time. In a second example, the cosmetics may also be anti-wrinkle creams that may be applied to any area of ​​the user's body, and the predefined period of time may be set to four weeks.

[0059] Before using such an anti-wrinkle cream, during the entire process from the user's neutral expression to the user's maximized expression, the image acquisition device 102 obtains a first set of ten consecutive images. For example, such a first set of ten consecutive images can be obtained simultaneously from the front, left and right sides of the user by three high-speed cameras with three flashes. Only ten consecutive images are shown, and any number of images can be used in the context of the present disclosure. The memory 103a stores such a first set of ten consecutive images in real time, and analyzes the nasolabial fold area in these images to obtain ten clinical grades for the nasolabial fold area, such as Figure 3 It is shown as a curve with a small inverted triangle.

[0060] Similarly, after such anti-wrinkle cream has been used for four weeks, during the entire process from the user's neutral expression to the user's maximized expression, the image acquisition device 102 obtains a second set of ten consecutive images. For example, such a second set of ten consecutive images can be obtained simultaneously from the front, left and right sides of the user by three high-speed cameras with three flashes. The memory 103a stores such a second set of ten consecutive images in real time, and analyzes the nasolabial fold area in these images to obtain ten clinical gradings for the nasolabial fold area, such as based on the aging atlas. Figure 3 It is shown as a curve with small solid points.

[0061] like Figure 3 As shown in , from the comparison between the two curves for T0 and T4w, it can be seen that during the entire process from the user's neutral expression to the user's maximum expression, the ten clinical grades for the nasolabial folds were reduced before and after using such an anti-wrinkle cream, and therefore the anti-wrinkle effect for the nasolabial fold area is obvious.

[0062] Figure 2 and Figure 3 This is just an example of the present disclosure, and the technical solution of evaluating the effect of cosmetics can also be achieved by obtaining the evolution of dynamic wrinkles with facial expressions. According to this disclosure, the cosmetic effect for dynamic wrinkles on any area of ​​the user's body can be easily obtained.

[0063] Figure 4 A flow chart illustrating a method 400 of assessing dynamic wrinkles on a keratinous material of a user to be tested according to the second aspect of the present disclosure.

[0064] At block 401, the user to be tested is positioned by the positioning device 101. The positioning device 101 includes: a head holder, which is configured to hold the user's head and ears; and a height gauge, which is configured to define the height of the user's head. Such a head holder and such a height gauge can be separate components or integrated racks. Through such an arrangement, the user can be positioned for the first time in the height direction and the left-right direction, so that the user can be stable when the image acquisition device 102 captures the user. In another preferred embodiment, the user can be repositioned by a component included in the computing device 103 for realizing a ghosting effect of images between different capture times in real time. More specifically, after positioning the user for the first time, the image acquisition device 102 obtains a plurality of first images of the user at a first time point to be viewed by an operator of the computing device 103; then, the image acquisition device 102 obtains a plurality of second images of the user at a second time point to be viewed by the operator of the computing device 103. If the operator of the computing device 103 finds that the boundaries of the plurality of first images and the boundaries of the plurality of second images are not aligned with each other by the component included in the computing device 103 for realizing the ghosting effect of images between different shooting times in real time, the user can be repositioned by adjusting the head holder and the height ruler so that the ghosting effect of images between different shooting times can be realized in real time. During the repositioning process, first, the user to be tested is fine-tuned by adjusting the angle and position of the face. Then, if necessary, the height of the head, ears, etc. is further fine-tuned. Such multiple repositioning processes can help the operator obtain consistent images at different time points, which is crucial for the image evaluation method of cosmetics.

[0065] At block 402, an image acquisition device simultaneously obtains images related to the user's facial expression from all directions at high speed. In a preferred embodiment, images related to the user's facial expression are simultaneously obtained from at least two different sides (preferably three sides, i.e., the front side, the left side, and the right side) of the user at high speed by at least two (preferably three) high-speed cameras. Such high-speed cameras can capture continuous images at high speed by a computing device, and the images can be converted into videos as a form of demonstration for anyone to watch and analyze later. Through voice and video instructions from an operator, the user to be tested is guided to perform facial expressions consistently at different time points. For example, during the process of capturing images, the user can relax his / her facial muscles, keep them relaxed, and make the following expressions: smile, grin, raise your eyes, get angry, etc. Through such three high-speed cameras, continuous images from neutral expressions to different expressions (such as smile, grin, raise your eyes, get angry) can be captured at different time points. In a preferred embodiment, the method also includes changing the shooting angle of each camera by adjusting a stand configured to hold each camera. In such a preferred embodiment, each such camera can be located in a designed and adjustable stand that can be adjusted to flexibly change the shooting angle of each camera. Such a stand has an adjustable component to easily adjust the shooting angle of the camera.

[0066] At block 403, the image is stored in real time. Later, at block 404, the image is processed to evaluate dynamic wrinkles. The dynamic image analysis is analyzed by an automatic image analysis method, so that the evolution of dynamic lines with facial expressions can be measured. In one example, a region of interest is selected from the image obtained from a neutral expression to a maximized expression; such a region of interest is analyzed so as to obtain the evolution of dynamic wrinkles. Of course, the present disclosure is not limited to such examples.

[0067] In a preferred embodiment, method 400 further includes processing the image to obtain a clinical grade for dynamic wrinkles. In one example, the clinical grade is obtained by a dermatologist based on an aging atlas or by applying artificial intelligence techniques to the obtained image. Of course, the present disclosure is not limited to such examples.

[0068] In a preferred embodiment, the method 400 may also evaluate the effectiveness of the cosmetic before and after the cosmetic is used for a predefined period of time.

[0069] According to the present disclosure, there is provided a device for evaluating dynamic wrinkles on a keratinous substance of a user to be tested, the device comprising means for performing the method according to each step of method 500 .

[0070] According to the present disclosure, a computer-readable medium is provided, on which instructions are stored, and when the instructions are executed, a computing device performs each step of the method 400 .

[0071] The present disclosure can simultaneously provide an integrated solution for image capture, repositioning, and storage; perform promising dynamic wrinkle assessment, and obtain atlas-based clinical grading.

[0072] An embodiment of the present disclosure may be an article of manufacture in which instructions (e.g., computer code) are stored on a non-transitory machine-readable medium (such as a microelectronic memory) that programs one or more data processing components (collectively referred to herein as "processors") to perform the above operations. In other embodiments, some of these operations may be performed by specific hardware components that include hard-wired logic (e.g., dedicated digital filter blocks and state machines). Alternatively, these operations may be performed by any combination of programmed data processing components and fixed hard-wired circuit components.

[0073] Although embodiments have been illustrated and described herein, it will be appreciated by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof, without departing from the true scope of the present technology. In addition, many modifications may be made to accommodate the teachings herein and specific circumstances without departing from the central scope thereof. Therefore, it is intended that the present embodiments are not limited to the specific embodiments disclosed as the best mode intended for carrying out the present technology, but that the present embodiments include all embodiments falling within the scope of the appended claims.

Claims

1. A system for evaluating dynamic wrinkles on a keratinous substance of a user to be tested, wherein: The system comprises: A positioning device, configured to locate the user; An image acquisition device, comprising a first computing circuit, wherein the first computing circuit is configured to simultaneously obtain images related to the user's facial expression from various directions; A computing device configured to be coupled to the image acquisition device, the computing device comprising a memory and a processor, wherein the memory stores the image and the processor comprises a second computing circuit configured to process the image to assess dynamic wrinkles.

2. The system according to claim 1, wherein: The positioning device includes: a head holder configured to hold the head and ears of the user; and a height ruler configured to define the height of the head of the user.

3. The system according to any one of claims 1 to 2, wherein: The computing device also includes a component for achieving a ghosting effect of images between different shooting times in real time, and the positioning device is further configured to reposition the user to achieve the ghosting effect.

4. The system according to any one of claims 1 to 3, wherein: The image acquisition device includes at least two high-speed cameras configured to simultaneously obtain continuous images related to facial expressions from at least two different sides of the user.

5. The system according to any one of claims 1 to 4, wherein: The image acquisition device includes three high-speed cameras configured to simultaneously obtain continuous images related to facial expressions from the front, left and right sides of the user.

6. The system according to any one of claims 1 to 5, wherein: The system also includes a stand configured to hold each camera, wherein the stand can be adjusted to change the shooting angle of each camera.

7. The system according to any one of claims 1 to 6, wherein: The processor includes a second computing circuit configured to also process the image to obtain a clinical grading for dynamic wrinkles and / or also process the image to obtain an evolution of dynamic wrinkles with facial expression.

8. A method for evaluating dynamic wrinkles on a keratinous material of a user to be tested, the method comprising the following steps: I. Positioning the user; II. Obtaining images related to the user's facial expression from all directions simultaneously; III. storing the image; as well as IV. Processing the images to assess dynamic wrinkles.

9. The method according to claim 8, wherein step I comprises: holding the user's head and ears; as well as Defines the height of the user's head.

10. The method according to any one of claims 8 to 9, wherein step I further comprises: The user is repositioned to achieve a ghosting effect between images captured at different times in real time.

11. The method according to any one of claims 8 to 10, wherein step II further comprises: Continuous images related to facial expressions are obtained simultaneously at high speed from the front, left and right sides of the user.

12. The method according to any one of claims 8 to 11, wherein step II further comprises: The shooting angle of each camera is changed by adjusting a stand configured to hold each camera.

13. The method according to any one of claims 8 to 12, wherein step III further comprises: The images are processed to obtain a clinical grading of dynamic wrinkles and / or the images are processed to obtain the evolution of dynamic wrinkles with facial expressions.

14. A device for assessing dynamic wrinkles on a keratinous material of a user to be tested, said device comprising means for carrying out the method according to any one of claims 8 to 13.

15. A computer readable medium having stored thereon instructions which, when executed, cause a computing device to perform the method according to any one of claims 8 to 13.

Images