• 한국멀티미디어학회논문지
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• 제20권4호
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• pp.713-720
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• 2017

We present a non-photo realistic pen-ink drawing method for outlining and shading of the input image. Especially, we focus on the detailed illustration of the image of which stroke's direction is important. The pen-ink renderer is an alternative display models user can generate traditional illustration renderings of their photo realistic image. The previously proposed pen drawing methods produce feasible description in general image but it is difficult to express in detail for the sophisticated images that need to consider the direction of stroke for each image region. In order to overcome the disadvantages of the conventional method, a direction vector is extracted from a tensor field and we determine a stroke's direction in consideration of not only an edge area but also a gradient of a surrounding area in the image. For more detailed description for the sophisticated image, we generate white noises based on the light and shade of the input image and determine the direction and length of the stroke by using the tensor field for each generated white noise. The proposed method works particularly well for traditional architectural images where the direction and detailed description of the pen is important.

• 대한통합의학회지
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• 제6권2호
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• pp.25-36
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• 2018

Purpose : The aim of this study was to investigate the influences of personality traits on depression and quality of life of stroke outpatients receiving rehabilitation therapy. Methods : The current study included 52 outpatients who received occupational therapy in a rehabilitative and general hospital located in Incheon. Their personality traits were assessed using the Big Five Inventory-Korean Version (BFI-K), and depression was measured using the Beck Depression Inventory (BDI). Quality of life was evaluated using the Stroke Specific Quality of Life (SS-QOL) scale. The collected data were analyzed to identify the effects of personality traits on depression and quality of life using a multiple regression analysis. Result : Neuroticism and depression were significantly correlated (p<.05), and neuroticism and agreeableness were significantly correlated with quality of life (p<.05). Additionally, depression and quality of life were significantly correlated (p<.05). Neuroticism affected depression significantly ($R^2=.503$, p<.05). Among the five personality traits, neuroticism, agreeableness, and extraversion had a significant effect on quality of life ($R^2=.474$, p<.05). Conclusion : These findings suggest that personality traits need to be considered in order to improve the quality of life of stroke patients.

• 대한한의학회지
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• 제21권2호
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• pp.3-13
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• 2000

Objectives : In oriental medicine, Daeseungki-tang is one of the most useful prescriptions for the therapy of constipation. And we also frequently use this prescription for constipated stroke patients. Methods : In order to identify the effects of Daeseungki-tang on constipated stroke patients, we administrated the extract of Daeseungki-tang(code number, HH264) to constipated stroke patients. We gave the medicine in two ways, one-pack group and two-pack group by random allocation and investigated the amount of stool, the frequency of defecation, the stool-form and the changes of blood pressure and body temperature before and after defecation. We also tried to examine the difference of symptoms between defecation-group and non-defecation group. Results : 1. There were no distinct symptoms between defecation-group and non-defecation-group in one-pack group. 2. After defecation, body temperature decreased significantly(P<0.05) in one-pack group and blood pressure decreased significantly(P<0.05) in two-pack group. 3. As for the stool-form, watery-soft was 41.9% in the firstt defecation and 47.1 % in the second defecation. 4. In one-pack group(23 cases), 13 cases(57%) defecated and 10 cases(43%) didn't defecate. And in two-pack group(24 cases), 19 cases(80%) defecated and 5 cases(20%) didn't defecate. These results meant that the effect of Daeseungki-tang was dose dependent. The amount of stool and the frequency of defecation were also dose dependent.

• 한국정보통신학회논문지
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• 제8권7호
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• pp.1546-1552
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• 2004

전자 잉크 데이터는 펜 기반 컴퓨터나 PDA(Personal Digital Assistants)둥에서 자연스럽고 편리한 데이터 입력을 제공하기 위해 펜으로 입력한 데이터를 온라인 문자 인식기를 이용하여 아스키 문자로 변환하지 않고 스크립트 형태로 저장하는 데이터를 말한다. 전자 잉크 데이터를 사용하기 위해 가장 중요한 것 중 하나는 전자 잉크 데이터의 검색 문제이다. 본 연구에서는 전자 잉크 데이터를 획 특징 벡터 형태로 저장하고, 이를 이용해서 잉크 데이터를 검색하는 정합 알고리즘을 제안하고 구현하였다. 제안된 정합 알고리즘은 입력된 데이터를 곡률을 이용하여 기본획으로 분리하고 기본획의 종류를 결정한 다음 획 특징 벡터를 생성한다. 그리고 동적 프로그래밍 기법에 의해 획 특징 벡터의 거리값을 계산한다.

• Physical Therapy Rehabilitation Science
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• 제2권1호
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• pp.39-43
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• 2013

Objective: The objective of this study is to investigate the effect of treadmill gait trainig on dynamic balance and gait functions in stroke patients. Design: Randomized, double-blind, controlled pilot study. Methods: Four subjects following first stroke participated in this study. They were divided randomly into the treadmill gait trainig group (TM group) (n=2) and the control group (n=2). Subjects in both groups received general training five times per week. Subjects in the TM group practiced an additional treadmill gait trainig program that consisted of 60 minutes, three times per week, during a period of four weeks. Timed up and go test (dynamic balance) and the GAITRite test (gait function) were evaluated before and after the intervention. Results: In dynamic balance (timed up and go test), the TM group (-14.235 sec) showed a greater decrease than the control group (-13.585 sec). In gait functions, the TM group showed a greater increase in gait speed (12.8 cm/s vs. 10.15 cm/s), step-length (5.825 cm vs. 3.735 cm), and stride-length (5.005 cm vs. 1.55 cm) than the control group. Conclusions: The treadmill gait trainig improved dynamic balance and gait functions. Further research is needed in order to confirm the generalization of these findings and to identify which stroke patients might benefit from treadmill gait trainig.

• The Journal of Korean Physical Therapy
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• 제28권3호
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• pp.176-182
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• 2016

Purpose: To investigate the effect of treadmill training applied simultaneously with gait related action observation on walking ability in chronic stroke patients. Methods: Sixteen chronic stroke patients participated in this study. Participants were randomly allocated into either the treadmill applied simultaneously with action observation training group (TAG) or treadmill applied simultaneously with landscape observation training group (TLG). The participants in both group underwent treadmill training for four weeks (a total of twelve minute, once a day, three times weekly for a four week period). All participants were measured to gait speed (10 m walking test, 10 MWT), gait endurance (6 minute walk distance, 6 MWD), dynamic gait index (DGI). In order to assure the statistical significance of the results, we used for SPSS 15.0 for windows. The Wilcoxon signed ranks test was used to compare pre-test and post-test result, and the Mann-Whitney U-test was employed for comparison between groups. Results: The 10 MWT, 6 MWD, DGI was significantly different between the TAG and the TLG group. Conclusion: According the results of this study, treadmill applied simultaneously with action observation (TAG) is effective intervention for improvement of walking ability in chronic stroke patient.

• PNF and Movement
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• 제16권3호
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• pp.355-363
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• 2018

Purpose: The purpose of this study was to obtain detailed and quantified data concerning the effects of plantarflexor muscle fatigue induced in the non-paretic side on the spatial and temporal gait parameters of the bilateral lower extremities during walking in stroke patients. Methods: This study was conducted on 20 patients with chronic stroke. The load contraction fatigue test was applied to induce muscle fatigue in the non-paretic plantarflexor muscle. Step length, stride length, double support, gait velocity and cadence, and functional ambulatory profile (FAP) score in the bilateral lower extremities were measured using a gait analysis system in order to investigate changes in temporal and spatial gait parameters caused by muscle fatigue on the non-paretic side. The statistical significance of the results was evaluated using a paired t-test. Results: A review of the results for gait parameters revealed a significant increase in double support (p<0.05) and a significant decrease in step length, stride length, gait velocity and cadence, and FAP score (p<0.05). Conclusion: These results indicate that the muscle fatigue in the non-paretic side of the stroke patients also affected the paretic side, which led to a decrease in gait functions. This implies a necessity to perform exercise or training programs in a range of clinical aspects not causing muscle fatigue.

• PNF and Movement
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• 제11권2호
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• pp.21-29
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• 2013

Purpose : The study was to evaluate the weight distribution, balance and gait function of stroke patients wearing lateral wedged insole to the shoe of the affected side. Methods : 27 patients with stroke (15 men, 12 women) participated in this study. Participants performed weight distribution, dynamic balance and gait ability with or without wedged insole on affected side in a random order. The balancia was used to evaluate the weight distribution. Deviation from the center line was analyzed by Dartfish during sit to stand to evaluate dynamic balance. The functional walk ability evaluated by 10 m walking velocity. Results : The asymmetry index of weight bearing improved significantly with wedged insole of affected side(p<.05). During sit to stand, center of gravity significantly moved from non-affected side to more mid line of body(p<.05). Improvement were shown in walking speed after wearing the wedged insole(p<.05). Conclusion : Wedged insole applied on affected side have a beneficial effect on weight distribution, dynamic balance and walking speed with stroke.

• 한국멀티미디어학회논문지
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• 제23권12호
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• pp.1552-1564
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• 2020

As various styles of fonts were used, there were problems such as output errors due to uninstalled fonts and difficulty in font recognition. To solve these problems, research on font recognition and recommendation were actively conducted. However, Hangul font research remains at the basic level. Therefore, in order to automate the comparison on Hangul font similarity in the future, we analyze the influence of each stroke element property. First, we select seven representative properties based on Hangul stroke shape elements. Second, we design a calculation model to compare similarity between fonts. Third, we analyze the effect of each stroke element through the cosine similarity between the user's evaluation and the results of the model. As a result, there was no significant difference in the individual effect of each representative property. Also, the more accurate similarity comparison was possible when many representative properties were used.

• 대한한의학회지
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• 제22권3호
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• pp.98-104
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• 2001

Objective : In order to study the effect of contralateral both side acupuncture on recovery of motor disorders in stroke patients, a clinical study was performed. Methods : Thirteen patients with post-stroke hemiplegia were randomized into two groups. Six patients (test group) were treated with contralateral both side acupuncture. The other seven patients (control group) were treated with ipsilateral both side acupuncture. The activity of daily living was measured with a National Institutes of Health (NIH) scale. The therapy was performed once a day for 3 weeks. Results : In terms of score of NIH, the test group showed statistically meaningful increase after I weeks treatment, while the control group showed statistically meaningful increase after 2 weeks (P<0.05). The results showed no statistically meaningful difference after 3 weeks treatment between the groups. Conclusions : These results support that contralateral both side acupuncture therapy has almost the same effectiveness compared with ipsilateral both side acupuncture therapy in improvement of the activity of daily living of post-stroke hemiplegic patients.