Objective Evaluation for Wrinkle Appearance of Fabrics by Image Processing and Slit Beam Projecting Technique

Han, Junyu; Yang, Minzhuang; Matsudaira, Mitsuo

doi:10.4188/transjtmsj.56.3_t1

Cited by 3 publications

(6 citation statements)

References 2 publications

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“…As it was stated in the experimental works, the standard replicas have larger differences in higher wrinkle degrees than in lower wrinkle degrees so that the standard replicas with 1, 2, 3, 4, and 5 wrinkle degrees represent 1,9,12,13, and 14 wrinkle ranks in the new method respectively. So it is recommended to use the new specimens for ranking fabric wrinkles instead of the standard replicas.…”

Section: Comparison Of Rank Ordered Specimens and Standard Replicasmentioning

confidence: 95%

“…In this way the number of grades for wrinkle ranking can be determined with regard to its application. For example, 7 wrinkle degrees (1,3,5,7,9,11) presenting grades 1-7 can be proposed for evaluating cotton fabrics.…”

Section: Comparison Of Rank Ordered Specimens and Standard Replicasmentioning

confidence: 99%

“…Image analysis systems [3][4][5][6] and laser triangulation method [7] have been developed for the assessment and automatic grading of wrinkle properties objectively. Thus, several parameters, including surface roughness ratio [8], surface area ratio [3,9], wrinkle density [3,8], profile [3], sharpness [3], randomness [3], FD [3][4][5][6][7][8][9][10] radon transform [11], wrinkle intensity mean [8], wrinkle volume [8] and power spectrum density of FFT [9,12] were derived and the degree of wrinkling was accordingly reported.…”

Section: Introductionmentioning

confidence: 99%

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Rank ordering and image processing methods aided fabric wrinkle evaluation

2011

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In the conventional subjective method, wrinkled fabric specimens are visually compared with the standard replicas under a specific light source in order to be evaluated and classified. In the present work, the rank ordering method is incipiently applied for grading a wide range of wrinkled fabrics. The five standard replicas are orderly placed among the ranked specimens and their grades are extracted. Results show that the specimens ranked by the ordering method are reliable and can be used for grading of wrinkled fabric to overcome the problems associated with the standard method such as the limited grading range and high and non uniform intervals between each pair of replicas. Conventional image processing methods used for grading fabric wrinkle are also applied on images taken from the ranked specimens. Among the methods studied in the literature Radon transform, wrinkle paths length and fractal dimension show a good correlation with the wrinkle grades derived from the rank ordering method.

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Section: Comparison Of Rank Ordered Specimens and Standard Replicasmentioning

confidence: 95%

Section: Comparison Of Rank Ordered Specimens and Standard Replicasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rank ordering and image processing methods aided fabric wrinkle evaluation

2011

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“…Therefore, a system is needed that can accurately quantify surface smoothness in a practical and repeatable manner. Previous research efforts have focused on this goal with limited success [2,3,4,5,6,7,10,14,15,16]. Of special interest are previous efforts that are similar to this work.…”

mentioning

confidence: 87%

“…Based on the idea that wrinkles occur predominantly in the same direction, Su et al [10] incorporated a rotating stage and used a neural network classifier on the features they described [14]. Han et al [4] also acquired profiles of the surface of a fabric. In their approach, a slit beam of light is projected onto a fabric specimen placed on a translation stage.…”

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confidence: 99%

Objective Evaluation of Durable Press Treatments and Fabric Smoothness Ratings

Abidi

Héquet

Turner

et al. 2005

Textile Research Journal

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In this research, we validate an imaging system for automatic grading of fabric smoothness, developed at Texas Tech University. This system consists of a sheet-of-light, laser-line projector; a smart CMOS camera; a moving platform; and a PC. Its purpose is to provide the textile industry with a tool for rapid, objective evaluation of fabric smoothness after home laundering. The validation study involves two cotton fabrics treated with increasing amounts of a textile-finishing agent to impart durable press properties. The UATR-FTIR is used as a rapid and nondestructive technique to determine the amount of the crosslinking agent linked to the cellulose after the required laundering cycles. To demonstrate the potential of our newly developed imaging system, we extract five features from the acquired images and relate them to AATCC grading and to the amount of finish as evaluated by FTIR. Our results demonstrate that this new wrinkle measurement technology has the potential to discriminate between different levels of fabric treatments and different fabrics.Durable press-referred to as smoothness-is a term used for apparel that requires little or no ironing after home laundering and has wrinkle resistance properties during daily wear. Such garments have become prominent consumer items. The protocol for ascertaining the smoothness grade of a fabric is outlined in the American Association of Textile Chemists and Colorists (AATCC) test method (TM) 124 [1]. This standard test is designed to evaluate the smoothness of fabric specimens after five cycles of home laundering. Once three specimens per fabric have been through five standard washing-drying cycles, three technicians visually evaluate their appearance. For these evaluations, each specimen is laid on a solid surface that stands at an incline of 5 degrees from the vertical under specified lighting conditions. The specimen is then compared to six standard replicas, which are 3D plastic models, showing varying degrees of smoothness and having grades 1 (very wrinkly), 2, 3, 3.5, 4, and 5 (very smooth). The specimen is assigned the grade of the replica it most closely resembles (Figure 1).Cotton is made up of cellulose with repeating anhydroglucose units, and on each unit are three available hydroxyl groups. The basic idea behind the resistance of cotton to wrinkles is to restrict the slippage of cellulose chains [9]. Chain slippage can be restricted by an appropriate chemical treatment, which establishes covalent links between the cellulosic chains in the amorphous regions of the cellulosic fibers. For many years, the textile industry has been using N-methylol based products with very low formaldehyde release as the crosslinking agent. The most common method for finishing the cotton fabric is the pad-dry-cure process, which consists of impregnating the sample in an aqueous solution containing the crosslinking agent and the appropriate catalyst, padding the impregnated fabric to 90 -100% wet pick-up, drying, and then curing.Infrared spectroscopy has been used to confirm ...

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Instrumentation system for objective evaluation of wrinkle appearance in fabrics using a standardized inspection booth

Urbiola-Soto¹,

Lopez

2013

Textile Research Journal

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The appliance industry requires a reliable method for wrinkle evaluation in textile materials. This method is necessary to assess the performance of new designs of tumble dryers. In this paper, we describe an objective evaluation system for wrinkle appearance grading based on the digital analysis of luminance images. The system is capable of evaluating wrinkles in real garments using the legacy inspection booth designed for subjective evaluation. Therefore, the results from the objective evaluation of wrinkles can be compared to the historical records. The dependence of luminance on the threedimensional characteristics of the wrinkles is modeled and discussed. Based on this analysis, we propose a method supported by two descriptors closely related with the wrinkle characteristics as appreciated by trained evaluators. The design incorporates filtering algorithms that eliminate the influence of undulations and the non-uniform illumination. The objective wrinkle evaluation showed high correlation with human experts and robust performance, as demonstrated by the repeatability and reproducibility study.Every engineering effort oriented to the optimization of a process involves the acquisition of objective, quantitative, and accurate information about performance in order to assess the improvement. In recent years, innovative functions have been incorporated to laundry dryers in order to eliminate wrinkles or minimize their generation in clothes. The efficacy of new designs is usually evaluated by a subjective test where the wrinkle degree of a batch of shirts is evaluated before and after being smoothed by a prototype dryer. This information is used as feedback for the process of dryer design optimization. The subjective test is based on the Method 124, ''Appearance of fabrics after repeated home laundering'', published by the American Association of Textile Chemists and Colorists (AATCC). 1 This method was designed to evaluate the smoothness appearance (SA) of flat fabric specimens. The SA is defined as the visual impression of planarity of a specimen, quantified by comparison with a set of reference standards. These reference standards are six fabric wrinkle replicas commercialized by the AATCC. The replicas, shown in Figure 1, are three-dimensional (3D) reproductions of fabric wrinkles with nominal SA grades from 1 to 5. According to this method, three trained observers should rate each specimen using the inspection booth shown in Figure 2. The overhead fluorescent lamps should be the only light source for the viewing board. All other lights in the room should be turned off. The observer stands directly in front of the specimen, 120 cm away from the board. The test specimen is mounted on the viewing board,

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Objective Evaluation for Wrinkle Appearance of Fabrics by Image Processing and Slit Beam Projecting Technique

Cited by 3 publications

References 2 publications

Rank ordering and image processing methods aided fabric wrinkle evaluation

Rank ordering and image processing methods aided fabric wrinkle evaluation

Objective Evaluation of Durable Press Treatments and Fabric Smoothness Ratings

Instrumentation system for objective evaluation of wrinkle appearance in fabrics using a standardized inspection booth

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