• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2009년도 추계학술대회
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• pp.54-57
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• 2009

This study was aimed to investigate the effects of visual texture on color emotion and to establish prediction models for color emotion by both physical color properties and visual texture characteristics. A variety of fabrics were printed by digital printer according to hue and tone combinations. Subjective sensation was evaluated in terms of visual texture for fabrics printed in gray whereas color emotion for those in chromatically printed. As results, fabric clusters by visual texture showed significant differences in color emotion factors and the differences were clearer for grayish tone fabrics. Prediction models for color emotion factors by both physical color properties and visual texture clusters were proposed as for all fabrics and grayish ones, respectively.

• 한국의류학회지
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• 제34권9호
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• pp.1567-1580
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• 2010

This study investigates the effects of visual texture on color emotion and establishes prediction models for color emotion by both physical color properties and visual texture characteristics. A variety of fabrics including silk, cotton, and flax were colored by digital textile printing according to chromatic hue and tone combinations that are evaluated in terms of color emotion. Subjective visual texture ratings are also obtained for gray-colored same fabrics to those used in color emotion tests. As a result, fabric clusters by visual texture factors showed significant differences in color emotion factors that are primarily affected by physical color properties. Finally prediction models for color emotion factors by both physical color properties and visual texture clusters were established, which has a potential to be used to explain color emotion according to the visual texture characteristics of fabrics.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2011년도 추계학술대회
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• pp.56-58
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• 2011

• 대한인간공학회지
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• 제30권1호
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• pp.221-227
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• 2011

Objective: The aim of this study is to investigate the quantitative effects of various emotions and retention periods on the color vividness of visual memory. Background: Although numerous studies have focused on the effects of emotions on memory such as visual detail and vividness of emotional events compared to neutral events, the relationship between emotion and visual memory is ambiguous yet. Furthermore, there were few studies on the effect of emotion on vividness of visual memory. Method: A total of 68 subjects were participated in serial experiments proceed on online and the experiments had two phases: recognition phase and reproduction phase. The 15 photographs were used as visual stimuli and all experiments were conducted over the internet(experiment website) and the results were collected on the web database. Results: The retention period, sleep-arousal emotion and subjective saturation of visual stimuli had a significant effect on the color vividness of visual memory. Conclusion: The results suggested that the color of visual stimulus might be more vividly remembered when it is arousing, the subjective saturation is higher and the retention period is longer. Application: The findings of this study may help clarify the relationship between human emotions and visual memory.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 추계학술대회논문집
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• pp.473-476
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• 1997

Human visual emotion were investigated by analyzing HRV from ECG signals, which were varied by the visual stimuli. In this paper, twelve university students experienced visual emotion by pictures from IAPS. ECG and subjective rating were obtained for human emotion evaluation. For determination of HRV, ECG was extracted into HF and LF via power spectrum analysis. The results showed that HRV is good for discrimination between positive and negative emotions.

• 한국멀티미디어학회논문지
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• 제24권7호
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• pp.880-889
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• 2021

In everyday life, recognizing people's emotions from their frames is essential and is a popular research domain in the area of computer vision. Visual emotion has a severe class imbalance in which most of the data are distributed in specific categories. The existing methods do not consider class imbalance and used accuracy as the performance metric, which is not suitable for evaluating the performance of the imbalanced dataset. Therefore, we proposed a method for recognizing visual emotion using balanced data augmentation to address the class imbalance. The proposed method generates a balanced dataset by adopting the random over-sampling and image transformation methods. Also, the proposed method uses the Focal loss as a loss function, which can mitigate the class imbalance by down weighting the well-classified samples. EfficientNet, which is the state-of-the-art method for image classification is used to recognize visual emotion. We compare the performance of the proposed method with that of conventional methods by using a public dataset. The experimental results show that the proposed method increases the F1 score by 40% compared with the method without data augmentation, mitigating class imbalance without loss of classification accuracy.

• 한국문헌정보학회지
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• 제48권1호
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• pp.53-73
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• 2014

감정기반 컴퓨팅 환경의 발전에 따라서 이미지를 포함한 멀티미디어 정보 자원의 감정 접근과 이용은 중요한 연구과제이다. 본 연구는 이미지의 감정색인을 위한 시각적인 요인의 탐색적 규명을 목적으로 한다. 연구목적을 성취하기 위해서 본 연구는 사랑, 행복, 슬픔, 공포, 분노의 5가지 기본감정으로 색인된 15건의 이미지를 대상으로 20명의 연구 참여자와의 인터뷰를 통해서 총 620건의 감정 시각적 요인을 추출하였다. 감정을 촉발하는 시각적 요인(5가지)과 하위 요인(18가지)의 분포와 5가지 감정별 시각적 요인 분포를 분석하여 그 결과를 제시하였다. 이미지의 감정을 인지하는 주요한 시각적 요인으로는 얼굴표정, 인물의 동작이나 행위, 선, 형태, 크기 등의 조형적 요소가 차지하는 비중이 높은 것으로 나타났다. 개별 감정과 시각적인 요인과의 관계를 살펴보면, 사랑 감정은 인물의 동작이나 행위와 밀접하게 나타났으며, 행복 감정은 인물의 얼굴표정이 중요한 것으로 나타났다. 슬픔 감정 역시 인물의 동작이나 행위와 밀접하게 연계되어 있으며, 공포 감정은 얼굴의 표정과 깊은 관계가 있다. 분노 감정은 조형적인 요소인 선, 형태, 크기가 특징적으로 나타났다. 이러한 결과는 이미지가 지니는 내용기반 요소와 개념기반 요소의 복합적인 접근이 효과적인 감정색인에 있어서 중요하다는 것을 제시한다.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2011년도 춘계학술대회
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• pp.93-94
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• 2011

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2002년도 가을학술발표대회 디자인학 연구
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• pp.86-87
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• 2002

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2012년도 춘계학술대회
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• pp.132-133
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• 2012