• International Journal of Contents
• /
• 제17권2호
• /
• pp.20-31
• /
• 2021

This study aimed to pilot test a newly developed bilateral upper limb rehabilitation training program for improving the upper limb function of individuals with chronic stroke using a visual feedback method. The double-group pretest-posttest design pilot study included 10 individuals with chronic stroke (age >50 years). The intervention (four weekly meetings) consisted of five upper limb training protocols (wrist extension; forearm supination and pronation; elbow extension and shoulder flexion; weight-bearing shift; and shoulder, elbow, and wrist complex movements). Upper limb movement function recovery was assessed with the FuglMeyer Assessment of the Upper Extremity, the Wolf Motor Function Test, the Trunk Control Test, the modified Ashworth Scale, and the visual analog scale at baseline, immediately after, and four weeks after the intervention. The Fatigue Severity Scale was also employed. The Fugl-Meyer Assessment of the Upper Extremity and Wolf Motor Function Test showed significant improvement in upper limb motor function. The Trunk Control Test results increased slightly, and the modified Ashworth Scale decreased slightly, without statistical significance. The visual analog scale scores showed a significant decrease and the Fatigue Severity Scale scores were moderate or low. The bilateral upper limb training program using the visual feedback method could result in slight upper limb function improvements in individuals with chronic stroke.

• International Journal of Advanced Culture Technology
• /
• 제9권2호
• /
• pp.18-31
• /
• 2021

The purpose of the present study was to present evidence for driving interventions for the elderly by conducting programs that can improve visual perception and cognitive function in a driving simulator for elderly drivers and analyse their effects. Three elderly subjects who were 65 years or older, did not have physical and cognitive impairments, and were able to drive themselves participated in the present study. A total of 12 intervention sessions, of which subjects participated in 10 sessions of nine different visual perception and cognitive function programs available in a driving simulator, were conducted and pre- and post-program assessments were conducted (two assessments in total). The assessments included the evaluation of visual perception, frontal lobe function, concentration, safe driving behaviour, and self-efficacy. The results showed positive effects of the driving simulator program on the visual perception, frontal lobe function, concentration, safe driving behaviour, and self-efficacy of all subjects. Changes in the simulator results showed remarkable improvement in the response evaluation, judgment evaluation, and predictive power evaluation, but showed difficulties in interference tasks and depth perception in common. The results showed positive effects of driving simulator training on the driving ability of the elderly, and consistent provision of such training is expected to improve the quality of life of the elderly by securing the safety of driving and actively supporting social participation.

• International Journal of Contents
• /
• 제17권1호
• /
• pp.1-10
• /
• 2021

Visual analytics is an emerging research field that combines the strength of electronic data processing and human intuition-based social background knowledge. This study demonstrates useful visual analytics with Tableau in conjunction with semantic network analysis using examples of sentiment flow and strategic communication strategies via Twitter in a blockchain domain. We comparatively investigated the sentiment flow over time and language usage patterns between companies with a good reputation and firms with a poor reputation. In addition, this study explored the relations between reputation and marketing communication strategies. We found that cryptocurrency firms more actively produced information when there was an increased public demand and increased transactions and when the coins' prices were high. Emotional language strategies on social media did not affect cryptocurrencies' reputations. The pattern in semantic representations of keywords was similar between companies with a good reputation and firms with a poor reputation. However, the reputable firms communicated on a wide range of topics and used more culturally focused strategies, and took more advantages of social media marketing by expanding their outreach to other social media networks. The visual big data analytics provides insights into business intelligence that helps informed policies.

• 한국의류산업학회지
• /
• 제22권6호
• /
• pp.812-825
• /
• 2020

This study compared and analyzed the interaction visual effect of skirt silhouettes and skirt length by body mass index. This study provides basic data for women in their 20s and 30s to choose suitable skirts for their image. Twelve skirts were made, consisting of two categories of body mass index, three types of skirt silhouette and two levels of skirt length. Men and women in their 20s and 30s evaluated the visual effects of the experimental skirts using a questionnaire. The interaction effect of the visual effect following the skirt's length and silhouette by body mass index were analyzed by three-way ANOVA. Overall, a shorter the body and lower body length resulted in better vertical effects in normal weight. In terms of horizontal effects, such as lower body thickness and full-body shape, the 40 cm skirt, 50 cm tight, and A-line skirt were generally shown as better images. Skirt length helped supplement body type rather than silhouette in the overweight section. When the length was 40 cm, three skirts showed a more positive image. This study provide results for women in their 20s and 30s to choose skirts that are suitable for their image.

• International Journal of Advanced Culture Technology
• /
• 제11권2호
• /
• pp.64-72
• /
• 2023

This paper discusses the technical exploration of Ang Lee's cinematic works and the unique visual beauty he presents. Ang Lee has successfully tackled various themes and genres, creating films that harmoniously blend Eastern and Western cultural sensibilities. These films are technologically innovative and show the interaction between technology and art, industry and culture. Therefore, this paper analyses the correlation between film technology and visual beauty in Ang Lee's works, and explores the discourse on how the relationship between film technology and art has changed with the development of film. Furthermore, this paper aims to provide insights into how technological innovation can enhance artistic creativity. The contribution of this study lies in the in-depth exploration of the relationship between film technology and art, with a focus on technological innovation and the visual beauty in Ang Lee's works. The research findings reveal that Ang Lee's films showcase the application of advanced technologies, captivating audiences with their unique visual aesthetics. The utilization of emerging technologies enables his films to possess not only visual impact but also convey profound emotions and themes. We conclude that technological innovation in film not only provides artists with more creative tools and expressive techniques but also, when combined with artistic sensibilities, creates captivating and visually expressive cinematic works. This discovery offers a new perspective for film production and opens up greater possibilities for collaboration between artists and technology experts.

• 중국학논총
• /
• 제27호
• /
• pp.147-166
• /
• 2009

New year pictures prevailed from 1660s to 1860. Especially, the reign period of Emperor Qianlong(r. 1736-1795) was the period of prosperity. The period of 1660s when new year pictures were started to be popular was the reign period of Emperor Kangxi(r. 1662-1722) was just started and corresponded to Emperor Kangxi's promulgation of "Sacred Edict." Chinese operas such as Peking opera were very popular among common people in the period from 1660s to 1860 when new year pictures prevailed. Qing emperors as foreign ruler chose the way of ruling their people by means of cultural influence in stead of military power. However their culture effort was not efficient toward the majority of illiterate people. New year pictures offered every information about the world through visual icons to the illiterate people at that time who perceived the world by means of seeing. They met the world through visual information offered by new year pictures. New year pictures were the stronger visual medium to spread and educate "Sacred Edict" to illiterate subjects than any other guide books published by elite officers.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2022년도 가을 학술논문 발표대회
• /
• pp.47-48
• /
• 2022

The positioning technology that measures the position of a person or object is a key technology to deal with the location of the real coordinate system or converge the real and virtual worlds, such as digital twins, augmented reality, virtual reality, and autonomous driving. In estimating the location of a person or object at an indoor construction site, there are restrictions that it is impossible to receive location information from the outside, the communication infrastructure is insufficient, and it is difficult to install additional devices. Therefore, this study tested the direct sparse odometry algorithm, one of the visual Simultaneous Localization and Mapping (vSLAM) that estimate the current location and surrounding map using only image information, at an indoor construction site and analyzed its applicability as an indoor positioning technology. As a result, it was found that it is possible to properly estimate the surrounding map and the current location even in the indoor construction site, which has relatively few feature points. The results of this study can be used as reference data for researchers related to indoor positioning technology for construction sites in the future.

• International Journal of Internet, Broadcasting and Communication
• /
• 제15권4호
• /
• pp.160-165
• /
• 2023

The pixel art style evolved from the shortcomings of computer image display technology has gradually transformed from a technical limitation into a widely recognized form of artistic expression since development in the early 20th century. This study analyzes the application and characteristics of the expandability of pixel art style design content in sub industries such as physical goods, environmental design, website design, digital art and illustration in the design field. It aims to explore the visual expression and sustainable development form of pixel art style under the development of new media technology that contradicts traditional technological concepts. The research results show that although the pixel art style generally pursues external visual features such as pixelated visual effects, sawtooth and matrix arrangements, its expansion in the art field shows a unique diversity of visual expressions. It has become an important means to convey nostalgic emotions and cultural values. Through this research, we hope to inspire more academic researchers and technology practitioners to explore the development potential of the pixel art style in emerging fields and promote its innovative application in design practice.

• Structural Engineering and Mechanics
• /
• 제90권5호
• /
• pp.493-504
• /
• 2024

This paper presents the methodology and results for the investigation of the structural safety of 40 aged underground water tanks to support the weight of photovoltaic (PV) systems that were supposed to be placed on their roof reinforced concrete (RC) slabs. The investigation procedure included (1) review of available documents; (2) visual inspection of the roof RC slabs; (3) carrying out a series of nondestructive (ND) tests; and (4) analysis of results. Out of the 40 tanks, eleven failed the visual inspection phase and were discarded from further investigation. The roof RC slabs of the tanks that passed the visual inspection were subjected to a series of ND tests that included infrared thermography, impact echo, ultrasonic pulse velocity (UPV), Schmidt hammer, concrete core compressive strength, and water-soluble chloride content. The NDT results proved that eight more tanks were not suitable to support the PV systems. Based on the results of the visual inspection and testing, a probabilistic decision-making criterion was established to reach a decision regarding the structural integrity of the roof slabs. The study concluded that the condition of the drainage filter was essential in protecting the tanks and its intact presence can be used as a strong indication of the structural integrity of the roof RC slabs.

• 한국안광학회지
• /
• 제20권2호
• /
• pp.157-165
• /
• 2015

목적: 근시성 굴절교정수술안에서 수평경선에 따른 중심부 및 주변부의 굴절력 변화를 정시안과 비교 평가하고자 하였다. 방법: 수술안 120 안(평균: $23.56{\pm}2.54$세, 범위: 20~29세)과 정시안 40 안(평균: $22.50{\pm}1.74$세, 범위: 20~25세)을 대상으로 개방형 자동굴절력계를 사용하여 중심시야를 기준으로 코 쪽과 귀 쪽의 수평방향 $5^{\circ}$, $10^{\circ}$, $15^{\circ}$, $20^{\circ}$, $25^{\circ}$의 굴절력을 각각 측정하였다. 수술안은 수술 전 등가구면 굴절이상에 따라 -6.00 D 미만은 수술안 그룹 1, -6.00 D 이상은 수술안 그룹 2로 분류하여 비교 분석하였다. 결과: 수술안 그룹 1의 수술 전 등가구면 굴절이상은 $-4.56{\pm}0.92D$(범위: -2.50 ~ -5.58 D)였고, 수술안 그룹 2는 $-7.09{\pm}0.96D$(범위: -6.00 ~ -9.00 D)로 나타났다. 정시안의 등가구면 M 평균값의 범위는 $-0.20{\pm}0.22D$(중심)에서 $-0.64{\pm}0.83D$(귀 방향 $25^{\circ}$)와 $-0.20{\pm}0.67D$(코 방향 $25^{\circ}$); 수술안 그룹 1의 M 평균값의 범위는 $-0.16{\pm}0.29D$(중심)에서 $-5.29{\pm}1.82D$(귀 방향 $25^{\circ}$)와 $-4.48{\pm}1.88D$(코 방향 $25^{\circ}$); 수술안 그룹 2의 M 범위는 $-0.20{\pm}0.32D$(중심)에서 $-7.98{\pm}2.08D$(귀 방향 $25^{\circ}$)와 $-7.90{\pm}2.26D$(코 방향 $25^{\circ}$)로 나타났고, 세 그룹 사이의 M 굴절력은 중심(p=0.600)과 귀 방향 $5^{\circ}$(p=0.647)에서 통계적으로 유의한 차이가 없었으나, 주변부 방향으로 갈수록 M 굴절력은 큰 차이를 보였다(p=0.000). 결론: 정시안은 망막의 중심부와 주변부에서 상대적으로 일정한 굴절이상을 보였고, 수평경선에서 주변부 근시흐림의 형태가 나타난 반면, 근시 굴절교정수술안에서는 중심부와 주변부 굴절이상이 정시안과는 다르고 중심부와 주변부의 굴절력 차이가 큰 것으로 나타났다.