• Journal of the Institute of Electronics Engineers of Korea CI
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• v.44 no.2 s.314
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• pp.37-46
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• 2007

In this paper, we propose technologies for enhancing the immersive realization of virtual objects in AR-based product design. Generally, multimodal senses such as visual/auditory/tactile feedback are well known as a method for enhancing the immersion in case of interaction with virtual objects. By adapting tangible objects we can provide touch sensation to users. A 3D model of the same scale overlays the whole area of the tangible object so the marker area is invisible. This contributes to enhancing immersion. Also, the hand occlusion problem when the virtual objects overlay the user's hands is partially solved, providing more immersive and natural images to users. Finally, multimodal feedback also creates better immersion. In our work, both vibrotactile feedback through page motors, pneumatic tactile feedback, and sound feedback are considered. In our scenario, a game-phone model is selected, by way of proposed augmented vibrotactile feedback, hands occlusion-reduced visual effects and sound feedback are provided to users. These proposed methodologies will contribute to a better immersive realization of the conventional AR system.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.337-341
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• 2008

This paper presents a vibrotactile space mouse which use pin-type vibrotactile display modules and a gyroscope chip. This mouse is a new interface device which is not only an input device as an ordinary space mouse but also a tactile output device. It consists of a space mouse which use gyroscope chip and vibrotactile display modules which have been developed in our own laboratory. Lately, by development of vibrotactile display modules which have small size and consume low power, vibrotactile displays are available in small sized embedded systems such as wireless mouses or mobile devices. Also, development of new sensors like miniature size gyroscope by MEMS technology enables manufacturing of a small space mouse which can be used in the air not in a plane. The vibrotactile space mouse proposed in this paper recognizes motion of a hand using the gyroscope chip and transmits the data to PC through Bluetooth. PC application receives the data and moves pointer. Also, 2 by 3 arrays of pin-type vibrotactile actuators are mounted on the front side of the mouse where fingers of a user's hand contact, and those actuators could be used to represent various information such as gray-scale of an image or Braille patterns for visually impared persons.

• Archives of Plastic Surgery
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• v.32 no.4
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• pp.485-490
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• 2005

Fingertip is the end of tactile organ and the part of hand most frequently injured. Fingertip injuries should be evaluated on an individual basis considering patient's overall physical condition, medical history, etiology, time of injury, and anticipated future hand use, and accordingly one of various methods of reconstruction should be selected. Complications after the reconstruction of fingertip injuries have been reported as pain, hypersensitivity, numbness, distal paresthesia, cold intolerance, and atrophy. From January to December 2002, dermofat grafts were performed on 15 patients to correct painful fingertips after injury. The thickness of the soft tissue of fingertip was measured both preoperatively and postoperatively with simple X-ray. To evaluate the improvement of pain, visual analogue scale(VAS) was used through the direct interview with patients. The average of postoperative follow-up period was 10.9 months. The average of increased soft tissue thickness ratio was 88.4%(2.3mm to 3.8mm). The average of preoperative VAS was 7.6, and postoperative VAS was 3. Dermofat graft on fingertip needs a further long-term follow-up study for the absorption ratio of dermofat, however, this procedure is simple and could be done under local anesthesia, and would be a useful alternative procedure to correct painful fingertips with the soft tissue atrophy after injury.

• The Journal of Internal Korean Medicine
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• v.27 no.3
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• pp.762-769
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• 2006

A callosal disconnection syndrome results in the functional independence of each hemisphere caused by ACA infarction, head injury or callosal operation for epilepsy. Clinical features are characterized by left unilateral tactile anomia, left unilateral agraphia, left unilateral apraxia, difficulty in copying drawings, dyscalculia and alien hand syndrome. Taeumchowe-tang(太陰調胃湯) is used to treat Taeumin(太陰人) Wewansuhanpyohanbyung(胃脘受寒表寒病). A 47 year-old man, following callosal infarction, was detected on MRI with left agraphia, dyscalculia and alien hand syndrome, but no left ideomotor apraxia or left apraxia. He was treated with Taeumchowe-tang. Significant improvement of clinical symptoms was seen, so it is here reported.

• Journal of the Korean Society of Clothing and Textiles
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• v.44 no.4
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• pp.610-625
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• 2020

This study suggests an alternative breast-prosthesis-making process for female breast cancer patients. From June 2018 to July 2018, we conducted a study using nine females between the ages 40-50 who never had breast cancer. We recorded the reported subjective sensations and objective physiological responses to different types of artificial breast materials: Trulife silicon breast prostheses (TS) and hand-made silk breast prostheses (HS). Considering the materials used in TS and HS individually, we studied the subjective sensation with regards to how each material functioned in a photo (VP), movement (VM) and the visual tactility (VT) sense. The results showed that comparing VP and VT led to more significant differences than those comparing VM and VT. In addition, there was a significant difference in terms of tactile sensation when comparing TS and HS with respect to subjective responses to texture. Subjects reported that HS felt more comfortable and gave a better cooling sensation. However, the measured objective physiological responses indicated that skin temperature was higher with HS than TS when touched. This research contributes to scholarship around alternative and new materials to build breast prostheses for women with breast cancer.

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.107-109
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• 2004

In this paper, authors propose the sensor fusion system that can recognize multiple 3D objects from 2D projection images and tactile information. The proposed system focuses on improving recognition performance of 3D object. Unlike the conventional object recognition system that uses image sensor alone, the proposed method uses tactual sensors in addition to visual sensor. Neural network is used to fuse these informations. Tactual signals are obtained from the reaction force by the pressure sensors at the fingertips when unknown objects are grasped by four-fingered robot hand. The experiment evaluates the recognition rate and the number of teaming iterations of various objects. The merits of the proposed systems are not only the high performance of the learning ability but also the reliability of the system with tactual information for recognizing various objects even though visual information has a defect. The experimental results show that the proposed system can improve recognition rate and reduce learning time. These results verify the effectiveness of the proposed sensor fusion system as recognition scheme of 3D object.

• The Research Journal of the Costume Culture
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• v.15 no.5
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• pp.749-759
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• 2007

As the traditional style is treated as one of the important themes in fashion recently, how to apply the formative character in Korean and Japanese traditional dress to modern fashion is searched through actual analysis of photograph material, Both design formative elements were confirmed by clothing and fashion department majors through visual data so that 20 pieces of them were selected as final analysis object. Korean traditional dress form in modern fashion emphasizes curvaceousness as plane division. On the other hand, that of Japanese shows straight line, layered, belt, big look through up & down connection style. Color in Korean traditional dress prefers white and original color and modern fashion displays the natural beauty through harmony of similar colors ; that of Japanese based on natural color such as persimmon color cherishes natural beauty and implicit moderation showing harmony of various original color with brilliance and neutral color. While texture in Korean traditional dress was fine and exquisite, that of Japanese preferred coarse and tactile ones. In motif, Korea was natural and geometric but Japanese variously used complex and geometric ones. Likewise, the result suggests that the formative character in Korean and Japanese modern fashion affects the modern dress format as new aesthetic sense and takes on more complicated and subtle aspect in basic form, not just use so far.

• The Research Journal of the Costume Culture
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• v.13 no.6 s.59
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• pp.934-945
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• 2005

The purpose of this study was to investigate the content and presentation style of consumer information of Korean young casual apparel brand. To collect the data for this study, the representative 25 casual brand web sites were selected, based on major search engines. In addition, to investigate exact product information, four product categories, knit shirts and casual pants for men and women, were selected and the number of products was limited as maximum 15 products per each category. A coding instrument was developed to capture the consumer information, based on the instrument by Park and Stoel(2002). The Pretest was conducted to gauge inter-coder reliability and the results showed that inter-coder reliability was highly acceptable. The results of this study were as follows. Most casual brand web sites for this study were presented well in brand and customer service information. Especially, many web sites provided various engaging information such as various events(best dresser contest, date with a star, special gift) and useful multimedia file(MP3 music file, screen saver, movie, calender). However, product information was very lack in most web sites. Especially, sizing and fitting information and textile and fabric hand information were rarely provided. Therefore, this result showed that the web sites should provide more specific product information and develop devices to get tactile sensory and experiential information for enhancement of future e-commerce of apparel products.

• The Journal of Korean Academy of Prosthodontics
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• v.36 no.2
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• pp.355-365
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• 1998

The purpose of this study is to evaluate the accuracy of four elastomeric interocclusal recording materials and the weight change according to different storage period (24 hours, 48hours, 7days) and different conditions (dry, wet). The techniques for establishing the intercuspal position were centic occlusion interocclusal record with four elastomeric interocclusal recording materials (Ramitec, Stat-BR, Blu-Mousse, Regisil) (experimental groups) and location of the cast in a position of maximum in-terdigitation using tactile and visual method(control group). To evaluate the accuracy of four elastomeric interocclusal recording materials, the quality of contacts between the mounted casts was compared with the results of an occlusal examination of the same subjects. The results were as follows : 1. The most accurate method of articulating study casts at the intercuspal position was by hand articulation and no significant differences in accuracy were observerd among the experimental groups. 2. In case of interocclusal records storaged in dry sealed plastic box, no significant differences in accuracy were observed among the experimental groups. 3. In case of interocclusal records storaged in water, there was significant inaccuracy in Ramitec group. 4. The biggest weight change was observed in Ramitec group in all storage conditions

• Journal of Fashion Business
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• v.15 no.4
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• pp.28-42
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• 2011

Philp Lim, Alexander Wang and Jason Wu are the American fashion designers as descendants of Chinese immigrants. They had the honor of being given the Swarovski Awards- new premier fashion designer- from CFDA(Council of Fashion Designers of America). The purpose of this study were to investigate the characteristics of their collection, and offered the informations for Korean designers entering the American market. This research categorized characteristics of these designers'- whole characteristics and the characteristics of details such as formal characteristics, optimistic characteristics, tactile characteristics-, and fashion styles from the S/S season of 2009 to the F/W season of 2010 were analyzed. These young and male designers being received attention as a star, didn't make creative art pieces. But they made pragmatic, commercial, and con-temporary works in whole characteristics and succeeded in their fashion business like other American designers. On the other hand they oriented high fashion clearly in terms of the detail characteristics - their own accent color, tiny change in variety, unique material, delicate ornaments. Therefore Lim created chic and stylish, Wang made a sporty street style, Wu made a luxury style with mannish and casual through work characteristics suitable for their costumer.