CN114663175A - Garment dynamic fit evaluation method - Google Patents
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- 238000012216 screening Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 6
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- G—PHYSICS
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0641—Shopping interfaces
- G06Q30/0643—Graphical representation of items or shoppers
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06T13/20—3D [Three Dimensional] animation
- G06T13/40—3D [Three Dimensional] animation of characters, e.g. humans, animals or virtual beings
Abstract
The invention discloses a method for evaluating the dynamic fit of clothes, which comprises the steps of obtaining body size data of a clothes wearing object, establishing a static virtual model according to the body size data, evaluating the dynamic posture according to the preselected fit of the clothes, establishing the virtual posture of the static virtual model to obtain a dynamic virtual model, guiding a clothes sample file into three-dimensional virtual fitting software, adjusting the attribute of a virtual fabric according to the parameters of the clothes fabric to obtain virtual clothes cut pieces, carrying out three-dimensional virtual fitting on the dynamic virtual model by using the virtual clothes cut pieces to obtain the dynamic virtual fitting model corresponding to the virtual dynamic posture, and evaluating the local and overall dynamic fit of the clothes according to the dynamic virtual fitting model. The method provided by the invention transfers the traditional clothes dynamic fit evaluation process which can be carried out based on clothes real objects and real person wearing experiments to a virtual environment, thereby realizing the digital evaluation of the clothes fit in different movement postures.
Description
Technical Field
The invention relates to the technical field of garment fit evaluation, in particular to a garment dynamic fit evaluation method.
Background
The fit of the clothes is an important factor influencing the wearability of the clothes, and the activity and comfort of operators are often influenced by the clothes which are not fit, so that the working efficiency is reduced; meanwhile, in the era of rapid development of the internet, online shopping has become a main mode for clothes consuming behaviors of people, but because real try-on cannot be carried out in a network environment, the goods returning and changing ratio is up to 50% due to incompatibilities, which brings great inconvenience to both buyers and sellers. Therefore, fit assessment of the garment is crucial. However, the traditional static fit assessment can only rely on mannequin or real person to try on to subjectively assess the fit degree of the clothes, the whole process of trying on the clothes is still, but in actual life and work, people are not static, especially in the operation of special work types, the movement postures are varied, which may cause that the fit clothes under static state can not meet the clothes looseness required by various posture changes of human body, so the dynamic fit assessment of the clothes under different postures needs to be carried out by combining the living and working environment of the target consumer group of the clothes.
The existing garment dynamic fit evaluation methods mainly comprise two types: one is that different postures are simulated by a dressing model, and then the dressing model is observed and evaluated by a clothing expert or the dressing model carries out subjective evaluation on the dressing feeling; and the other type is that the amount of the gap between the clothes and the human body is measured and analyzed by utilizing a three-dimensional human body scanning technology, so that the dynamic fit of the clothes is evaluated. The first method is determined by subjective assessment, no objective data is provided for reference, and in addition, the human body is covered by the clothing, and experts or models cannot comprehensively observe or perceive the contact condition of the clothing and the human body, so that the local fit of the clothing can not be judged sufficiently. The second method needs to adopt a three-dimensional scanner, but most three-dimensional scanners can only scan static objects during fitness evaluation at present, continuous actions need to be decomposed into a plurality of static postures to realize the scanning under the moving posture, and then the wearing shapes under different postures are evaluated by using the three-dimensional human body scanner, so that the method cannot effectively reflect the fitness of the clothes under the true moving posture state, and the cost of the instrument is high. In addition, both methods can be carried out based on clothes real objects and real person wearing tests, so that the sample clothes manufacturing cost and the performance evaluation cost in the clothes research and development process are increased, time is consumed, and a large amount of waste of manpower, material resources and materials is caused. Therefore, it is necessary to design a method for evaluating the fit of a garment in a real posture state.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the fit of the garment cannot be efficiently evaluated in a real posture state in the prior art.
In order to solve the technical problem, the invention provides a method for evaluating dynamic fit of a garment, which comprises the following steps:
acquiring body size data of a dressing object;
inputting the body size data into three-dimensional virtual fitting software to establish a static virtual model;
evaluating the moving posture according to the preselected fit of the garment, establishing a virtual moving posture of the static virtual model by utilizing a character animation generation website, and loading the virtual moving posture to the static virtual model to obtain a dynamic virtual model;
importing the clothing template file into the three-dimensional virtual fitting software, and adjusting the attribute of the virtual fabric according to the fabric parameters of the clothing to obtain virtual clothing pieces;
performing three-dimensional virtual fitting on the dynamic virtual model by using the virtual clothing pieces to obtain a dynamic virtual fitting model corresponding to the virtual dynamic posture;
and carrying out local and overall dynamic fit evaluation on the clothes according to the dynamic virtual fitting model.
Preferably, the acquiring body size data of the clothing object comprises:
and acquiring body size data of the dressing object by using a three-dimensional human body scanning technology.
Preferably, the clothing pattern file is an electronic file derived from clothing patterns drawn in clothing CAD software.
Preferably, the three-dimensional virtual software is Clo 3D.
Preferably, the garment fit evaluation movement posture is constructed by screening common movement attributes of the clothing object according to the operation characteristics of the clothing object.
Preferably, the estimating the dynamic posture according to the preselected fit of the garment, establishing the virtual dynamic posture of the static virtual model, and obtaining the dynamic virtual model comprises:
estimating the moving postures according to the fitness of the n clothes, and establishing n virtual moving postures M of the static virtual model by utilizing a character animation generation websitei(i-1, 2 … … n) and loading the virtual gestures into the static virtual model, resulting in a dynamic virtual model Bi(i＝1，2……n)。
Preferably, the character animation generation website is an Adobe character animation website.
Preferably, the evaluating the partial and overall dynamic fit of the garment according to the dynamic virtual fitting model comprises:
and generating a corresponding dress semi-transparent map, a dress pressure map and a dress stress map by using the dynamic virtual fitting model, and carrying out local and overall dynamic fit evaluation on the dress semi-transparent map, the dress pressure map and the dress stress map according to a subjective scale evaluation method.
Preferably, the subjective scale evaluation method uses a five-grade Lekter scale as a scale to score the dynamic fit of the garment.
Preferably, the evaluation of the partial and overall dynamic fit of the garment according to the dynamic virtual fitting model comprises:
if the garment dynamic fit evaluation result meets the fit requirement, taking the garment template as a final template;
and if the garment dynamic fit evaluation result does not meet the fit requirement, modifying the garment template according to the garment dynamic fit evaluation result, and re-evaluating the garment dynamic fit.
According to the method for evaluating the dynamic fit of the clothes, provided by the invention, the body size data of the clothes object is obtained by utilizing a three-dimensional human body scanning technology, the static virtual model is constructed, the dynamic virtual model is constructed according to the common action attribute of the clothes object, the virtual clothes cut pieces are sewn and tried on based on the dynamic virtual model, the clothes virtual model with the virtual action attribute is obtained, the traditional clothes dynamic fit evaluation process which can be carried out based on clothes real objects and real person wearing experiments is transferred to a virtual environment for carrying out, the digital evaluation of the fit of the clothes under different motion postures is realized, and therefore, the evaluation of the dynamic fit of the clothes is more convenient and efficient, and the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a flow chart of a first embodiment of a method for evaluating dynamic fit of a garment according to the present invention;
FIG. 2 is a flow chart of a second embodiment of a method for evaluating dynamic fit of a garment according to the present invention;
FIG. 3 is a semi-transparent view of a garment, a garment stress map, and a garment stress map;
FIG. 4 is a graph of a template modification alignment;
FIG. 5 is a flowchart illustrating a method for evaluating the dynamic fit of a garment according to a third embodiment of the present invention;
FIG. 6 is a flow chart of a technique provided by the present invention.
Detailed Description
The core of the invention is to provide a method for evaluating the dynamic fit of clothes, a dynamic virtual model is constructed according to the common action attributes of the dressed objects, the virtual clothes cutting pieces are sewed and tried on based on the dynamic virtual model to obtain the dressed virtual model with the virtual action attributes, and the digital evaluation of the fit of the clothes under different motion postures is realized, so that the evaluation of the dynamic fit of the clothes is more convenient and efficient, and the cost is reduced.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for evaluating a dynamic fit of a garment according to a first embodiment of the present invention; the specific operation steps are as follows:
step S101: acquiring body size data of a dressing subject;
acquiring the body size of a dressing object by using a three-dimensional human body scanning technology or a manual contact measurement method;
step S102: inputting the body size data into three-dimensional virtual fitting software to establish a static virtual model;
step S103: evaluating the moving posture according to the preselected fit of the garment, establishing a virtual moving posture of the static virtual model by utilizing a character animation generation website, and loading the virtual moving posture to the static virtual model to obtain a dynamic virtual model;
step S104: importing the clothes sample file into the three-dimensional virtual fitting software, and adjusting the attribute of the virtual fabric according to the fabric parameters of the garment to obtain virtual garment pieces;
step S105: performing three-dimensional virtual fitting on the dynamic virtual model by using the virtual clothing pieces to obtain a dynamic virtual fitting model corresponding to the virtual dynamic posture;
step S106: according to the dynamic virtual fitting model, evaluating the local and overall dynamic fitness of the clothes;
and generating a corresponding dress semi-transparent map, a dress pressure map and a dress stress map by using the dynamic virtual fitting model, and carrying out local and overall dynamic fit evaluation on the dress semi-transparent map, the dress pressure map and the dress stress map according to a subjective scale evaluation method.
Specifically, the character animation generation website is not limited to the Adobe character website, and is not limited in this embodiment of the present invention.
The method for evaluating the dynamic fit of the clothes provided by the embodiment carries out the evaluation of the local and overall dynamic fit of the clothes through the dynamic virtual fitting model, and realizes the digital evaluation of the fit of the clothes under different movement postures, so that the evaluation of the dynamic fit of the clothes is more convenient and efficient, and the cost is reduced.
Referring to fig. 2, fig. 2 is a flowchart of a second embodiment of a method for evaluating a dynamic fit of a garment according to the present invention, based on the above embodiment, a squat motion is selected as a posture evaluation of the dynamic fit of the garment in the embodiment, and the specific operation steps are as follows:
step S201: acquiring body size data of a dressing object by using a three-dimensional scanner;
step S202: obtaining a static virtual model based on the body size data of the dressing object by using the function of a 'model editor' of three-dimensional virtual software Clo 3D;
step S203: selecting the squat action of the dressed object as the action posture for evaluating the fitting performance of the clothes;
step S204: uploading the static virtual model to a character animation generation website, giving squat actions to the virtual model, and finally obtaining a dynamic virtual model with squat action animations as a three-dimensional virtual fitting object;
the dynamic virtual model not only has the same body size as the dressing object, but also has the squatting motion attribute of the dressing object;
step S205: importing the clothing template file into three-dimensional virtual software Clo3D, and adjusting the virtual fabric attribute according to the fabric parameters of the clothing to obtain virtual clothing pieces;
step S206: performing three-dimensional virtual fitting on the dynamic virtual model by using the virtual clothing cut pieces to obtain a dynamic virtual fitting model corresponding to the virtual squatting action;
step S207: generating a dressing semitransparent view, a clothing pressure map and a clothing stress map according to the dynamic virtual fitting model;
as shown in fig. 3, a semi-transparent view of the garment, a garment stress map;
step S208: carrying out local and overall dynamic fit evaluation on the clothing semi-transparent view, the clothing pressure map and the clothing stress map by using a subjective scale evaluation method;
the subjective evaluation takes a five-level Likter scale as a scale to score the dynamic fit of the clothes; wherein, the five-level Liktet Table adopts-2, -1, 0, 1, 2 to respectively represent 'very tight', 'tighter', 'moderate', 'looser', 'very loose';
table 1 shows the results of fitness evaluation in this example;
TABLE 1 evaluation results of fitness
| Part(s) | True dressing state | Three-dimensional virtual fitting |
| Waist circumference | 0 | 0 |
| Bra | -0.2 | -0.5 |
| Hip circumference | -2 | -2 |
| Length of sleeve | 0.2 | 0.5 |
| Trousers length | 0.3 | 0.5 |
| Clothes hanger | -1.5 | -1.5 |
| Integral body | -1.5 | -1.5 |
In order to verify the accuracy of the method provided by the invention, the clothing template is made into a clothing real object, the fitting performance of the local part (six parts of waist circumference, chest circumference, hip circumference, sleeve length, trouser length and clothing length) and the whole body of the clothing in the squatting state is evaluated by a subject by utilizing a real person dressing experiment, a five-grade Lexan table is also adopted as a scoring standard, and the evaluation result is also shown in the table 1. Compared with the evaluation results in a real dressing test and a three-dimensional virtual fitting, the evaluation result obtained by the method provided by the invention is very similar to the fitting result perceived by a subject in the actual wearing process, and the accuracy of the method provided by the patent is proved.
Step S209: if the result of the garment dynamic fit evaluation meets the fit requirement, the garment sample is taken as a final sample, and if the result of the garment dynamic fit evaluation does not meet the fit requirement, the garment sample is modified, and the garment dynamic fit is reevaluated;
FIG. 4 is a graph of the template modification alignment, as shown in FIG. 4;
according to the evaluation result of the clothes fitness under the squatting action, modification suggestions are provided for the structure of the jumpsuit, such as increasing the release amount of front and back pieces of trousers, downward releasing of the crotch bottom and prolonging of the circumferential crotch line, the sample plate of the jumpsuit is improved based on the modification suggestions, and the dynamic fitness of the clothes under the squatting action is evaluated in a virtual environment by utilizing the three-dimensional virtual fitting technology again. The pressure of the garment before and after the template is modified, for example, as shown in fig. 3, it can be seen that the pressure at the armholes and the hip part on both sides of the squat motion is obviously reduced after the garment looseness is increased.
The method for evaluating the dynamic fit of the clothes provided by the embodiment utilizes a three-dimensional virtual fitting technology, realizes the evaluation of the dynamic fit of the clothes in a virtual environment, avoids the clothes real object and the real person dressing experiment process depending on the traditional evaluation of the dynamic fit of the clothes, simultaneously provides a visual means for the overall evaluation of the local and overall fit of the clothes, and can improve the research and development efficiency of clothes products and promote the green sustainable development of the garment manufacturing industry based on the process of 'digitalized sample plate-virtual fitting in a moving posture state-digitalized evaluation in a moving posture state-corrected digitalized sample plate'.
Referring to fig. 5 and 6, fig. 5 is a flowchart of a third embodiment of a method for evaluating a dynamic fit of a garment according to the present invention, fig. 6 is a flowchart of a technique provided by the present invention, based on the above embodiment, in this embodiment, a plurality of common actions of the clothing object are selected as a dynamic fit evaluation pose of the garment according to the operation characteristics of the clothing object, and the specific operation steps are as follows: the specific operation steps are as follows:
step S501: acquiring body size data of a dressing subject;
step S502: establishing a static virtual model with the same size as the body of the dressing object according to the body size data;
step S503: analyzing the operation characteristics of the clothing object by using a motion analysis method, and screening representative n motions as motion postures of the clothing fitness evaluation;
step S504: according to the dynamic pose of the clothes fitness evaluation, n virtual dynamic poses M of the static virtual model are establishedi(i ═ 1, 2 … … n), resulting in a dynamic virtual model Bi(i＝1，2……n)；
Step S505: importing the clothing sample into three-dimensional virtual software, and adjusting the attribute of the virtual fabric according to the fabric parameters of the clothing to obtain virtual clothing pieces;
step S506: using the virtual clothing pieces to pair the dynamic virtual model BiPerforming three-dimensional virtual fitting to obtain the virtual dynamic posture MiThe dynamic virtual fitting model Ci(i＝1，2……n)；
Step S507: according to the dynamic virtual fitting model CiGenerating a dress semi-transparent view, a dress pressure map and a dress stress map;
step S508: carrying out local and overall dynamic fit evaluation on the clothing semi-transparent view, the clothing pressure map and the clothing stress map by using a subjective scale evaluation method;
step S509: repeatedly executing the dynamic fit evaluation of the clothes until the dynamic fit evaluation of the clothes under the n virtual dynamic postures is finished;
the method for evaluating the dynamic fit of the clothes provided by the embodiment utilizes a three-dimensional virtual fitting technology, transfers the traditional clothes dynamic fit evaluation process which can be carried out based on the wearing experiment of real clothes and real people to a virtual environment for carrying out, and realizes the digital evaluation of the fit of the clothes under different motion postures, so that the evaluation of the dynamic fit of the clothes is more convenient and efficient, and the cost is reduced; secondly, the semi-transparent view of the garment provided by the virtual environment is utilized to make the garment semi-transparent, so that the relationship between the garment and the surface of the human body can be clearly shown, and meanwhile, the stress map and the pressure map of the garment are combined to realize the visual evaluation of the fit of the garment, thereby avoiding the problem that the contact condition of the garment and the human body cannot be comprehensively observed or sensed due to the fact that the human body is covered by the garment in the traditional real person wearing experiment, and realizing the comprehensive visual judgment of the local fit of the garment; and thirdly, the digital sample plate is directly modified by utilizing the evaluation result in the virtual environment, so that the number of times of sample clothes manufacturing is reduced, the resource waste caused by the cyclic process of sample plate-sample clothes-real person wearing evaluation-correction sample plate in industry is reduced, a new clothes development process based on the digital sample plate-virtual fitting in a moving posture state-digital evaluation-correction digital sample plate in the moving posture state is formed, the research and development efficiency of clothes is improved, and the green sustainable development of the clothes manufacturing industry is promoted.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The method for evaluating the dynamic fit of the garment provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A method for evaluating the dynamic fit of a garment, comprising:
acquiring body size data of a dressing subject;
inputting the body size data into three-dimensional virtual fitting software to establish a static virtual model;
evaluating the moving posture according to the preselected fit of the garment, establishing a virtual moving posture of the static virtual model by utilizing a character animation generation website, and loading the virtual moving posture to the static virtual model to obtain a dynamic virtual model;
importing the clothing template file into the three-dimensional virtual fitting software, and adjusting the attribute of the virtual fabric according to the fabric parameters of the clothing to obtain virtual clothing pieces;
performing three-dimensional virtual fitting on the dynamic virtual model by using the virtual clothing pieces to obtain a dynamic virtual fitting model corresponding to the virtual dynamic posture;
and carrying out local and overall dynamic fit evaluation on the clothes according to the dynamic virtual fitting model.
2. The method of claim 1, wherein the obtaining body size data of the wearer comprises:
and acquiring body size data of the dressing object by using a three-dimensional body scanning technology.
3. The method of claim 1, wherein the garment pattern file is an electronic file derived from a garment pattern drawn in CAD software of the garment.
4. The method for assessing the dynamic fit of a garment according to claim 1, wherein said three-dimensional virtual software is Clo 3D.
5. The method for evaluating the dynamic fit of clothes according to claim 1, wherein the fitting posture of clothes is constructed by screening common motion attributes of the dressed objects according to the operation characteristics of the dressed objects.
6. The method for evaluating the fit of a garment according to claim 1, wherein the evaluating the dynamic pose according to the fit of the garment pre-selected, and establishing the virtual pose of the static virtual model to obtain the dynamic virtual model comprises:
evaluating the moving postures according to the fitness of the n clothes, and establishing n virtual moving postures M of the static virtual model by utilizing a character animation generation websitei(i-1, 2 … … n) and loading the virtual poses to the static virtual model, resulting in a dynamic stateVirtual model Bi(i＝1，2……n)。
7. The method of claim 1, wherein the character animation generation website is Adobe's character animation website.
8. The method for evaluating the dynamic fit of a garment according to claim 1, wherein the evaluating the dynamic fit of the partial and the whole garment according to the dynamic virtual fit model comprises:
and generating a corresponding dressing semitransparent drawing, a clothing pressure drawing and a clothing stress drawing by using the dynamic virtual fitting model, and carrying out local and overall dynamic fit evaluation on the dressing semitransparent drawing, the clothing pressure drawing and the clothing stress drawing according to a subjective scale evaluation method.
9. The method of claim 7, wherein the subjective scale assessment method scores dynamic fit of the garment on a five-level Lekter scale.
10. The method for evaluating the dynamic fit of the garment according to claim 1, wherein the evaluation of the local and overall dynamic fit of the garment according to the dynamic virtual fit model comprises:
if the garment dynamic fit evaluation result meets the fit requirement, taking the garment template as a final template;
and if the garment dynamic fit evaluation result does not meet the fit requirement, modifying the garment template according to the garment dynamic fit evaluation result, and re-evaluating the garment dynamic fit.
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| PCT/CN2022/078593 WO2023147712A1 (en) | 2022-02-07 | 2022-03-01 | Method for evaluating dynamic fit of garment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117422896A (en) * | 2023-12-18 | 2024-01-19 | 高密市真又美服装有限公司 | Intelligent design method and system for clothing process template |
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2022
- 2022-02-07 CN CN202210116425.3A patent/CN114663175A/en active Pending
- 2022-03-01 WO PCT/CN2022/078593 patent/WO2023147712A1/en unknown
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| CN117422896A (en) * | 2023-12-18 | 2024-01-19 | 高密市真又美服装有限公司 | Intelligent design method and system for clothing process template |
| CN117422896B (en) * | 2023-12-18 | 2024-03-22 | 高密市真又美服装有限公司 | Intelligent design method and system for clothing process template |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023147712A1 (en) | 2023-08-10 |
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