• Journal of Information Processing Systems
• /
• 제10권3호
• /
• pp.443-458
• /
• 2014

An extreme learning machine (ELM) is a recently proposed learning algorithm for a single-layer feed forward neural network. In this paper we studied the ensemble of ELM by using a bagging algorithm for facial expression recognition (FER). Facial expression analysis is widely used in the behavior interpretation of emotions, for cognitive science, and social interactions. This paper presents a method for FER based on the histogram of orientation gradient (HOG) features using an ELM ensemble. First, the HOG features were extracted from the face image by dividing it into a number of small cells. A bagging algorithm was then used to construct many different bags of training data and each of them was trained by using separate ELMs. To recognize the expression of the input face image, HOG features were fed to each trained ELM and the results were combined by using a majority voting scheme. The ELM ensemble using bagging improves the generalized capability of the network significantly. The two available datasets (JAFFE and CK+) of facial expressions were used to evaluate the performance of the proposed classification system. Even the performance of individual ELM was smaller and the ELM ensemble using a bagging algorithm improved the recognition performance significantly.

• 인지과학
• /
• 제14권4호
• /
• pp.33-42
• /
• 2003

본 논문은 내적상태의 차원모형을 기반으로 한 얼굴 표정인식을 위한 새로운 시스템을 제시한다. 얼굴표정 정보는 3단계로 추출된다. 1단계에서는 Gabor 웨이브렛 표상이 얼굴 요소들의 경계선을 추출한다. 2단계에서는 중립얼굴상에서 얼굴표정의 성긴 특징들이 FCM 군집화 알고리즘을 사용하여 추출된다. 3단계에서는 표정영상에서 동적인 모델을 사용하여 성긴 특징들이 추출된다. 마지막으로 다층 퍼셉트론을 사용하여 내적상태의 차원모델에 기반한 얼굴표정 인식을 보인다. 정서의 이차원 구조는 기본 정서와 관련된 얼굴표정의 인식 뿐만 아니라 다양한 정서의 표정들로 인식할 수 있음을 제시한다.

• 한국의류학회지
• /
• 제22권8호
• /
• pp.978-989
• /
• 1998

The purpose of this study is enrich the expressivity in fashion illustrations by looking into the expression of humor which is seen in the fashion illustration. In addition, this study is expected to provide a theoretical basis to the people whose works are concern with Fashion design. It is the fashion illustration that expresses the specific concept that accords with the purpose of drawing. And we need to create our own techniques freely and to develop them into higher ones. In this view, we can say that the humor in the fashion illustrations shows us the new world of expression. And we can also say that it fills the roles of social functions to purify human emotions with helping the communication between people in our highly developed society. Finally, the expression of humor in fashion illustrations can be described as followings. First, they are relate with the superiority, disparity, psychic release in the theory of humor's origin. Second, the image of humor can be induced by changing the figure of human body. Third, it can be encouraged by contrasting the different fashion images. Forth, we can use well-known icons that cause the humor does not only give us laugh but also reflect the era, society enlarge the range of expression in fashion illustrations.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2005년도 심포지엄 논문집 정보 및 제어부문
• /
• pp.113-115
• /
• 2005

This thesis presents a method for 3D modeling of facial expression from frontal and mirror-reflected multi-image. Since the proposed system uses only one camera, two mirrors, and simple mirror's property, it is robust, accurate and inexpensive. In addition, we can avoid the problem of synchronization between data among different cameras. Mirrors located near one's cheeks can reflect the side views of markers on one's face. To optimize our system, we must select feature points of face intimately associated with human's emotions. Therefore we refer to the FDP (Facial Definition Parameters) and FAP (Facial Animation Parameters) defined by MPEG-4 SNHC (Synlhetic/Natural Hybrid Coding). We put colorful dot markers on selected feature points of face to detect movement of facial deformation when subject makes variety expressions. Before computing the 3D coordinates of extracted facial feature points, we properly grouped these points according to relative part. This makes our matching process automatically. We experiment on about twenty koreans the subject of our experiment in their late twenties and early thirties. Finally, we verify the performance of the proposed method tv simulating an animation of 3D facial expression.

• 한국의상디자인학회지
• /
• 제15권1호
• /
• pp.47-57
• /
• 2013

In terms of expression, beauty illustration has become more diverse and innovative. Because of continued unique creative activities, more novelty has been pursued. In this study, beauty illustration in new artistic and decorative images was used to investigate the basic concepts of art activities, illustration and beauty illustration and make up for beauty illustration which adheres to traditional and classical expressions. In this study, the following results were obtained: First, in terms of expression of beauty illustration, the work with art expressions are still poor compared to other fields such as fashion illustration. Therefore, it is necessary to attempt beauty illustration of a new image which expresses artistic emotions. Second, by using an artistic technique called 'paper sculpture', a semi-solid shape has been completed, and a decorative beauty illustration was created. People get new inspiration through beautiful and innocent art pieces, which in turn motivate to create new expression. New art activities which take a human body as an art support beauty activities through picture and more sensitive inspiration. It was attempted to express other emotion and beauty by observing a single piece of work. A new possibility in beauty illustration which is differentiated from other art activities is proposed and its domain is developed.

• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2007년도 학술대회 1부
• /
• pp.411-416
• /
• 2007

본 연구는 메신저 환경에서 상대방에게 감정을 표현할 때, 기존의 시청각적 감성정보 전달방식 이외에 촉각적 수단을 통하여 감성정보를 표현하는 진동기반 촉각 인터페이스를 제안한다. 이를 위해, 국내의 한 메신저 프로그램이 제공하고 있는 감성정보 기반의 이모티콘들을 분류하여 진동패턴을 기반으로 한 택타일 아이콘(tactile icons)으로 재정의한다. 그리고 사용자 실험을 통해 이의 실효성과 향후 응용 가능성을 검증한다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제10권3호
• /
• pp.1390-1403
• /
• 2016

Facial expression recognition (FER) plays a very significant role in computer vision, pattern recognition, and image processing applications such as human computer interaction as it provides sufficient information about emotions of people. For video-based facial expression recognition, depth cameras can be better candidates over RGB cameras as a person's face cannot be easily recognized from distance-based depth videos hence depth cameras also resolve some privacy issues that can arise using RGB faces. A good FER system is very much reliant on the extraction of robust features as well as recognition engine. In this work, an efficient novel approach is proposed to recognize some facial expressions from time-sequential depth videos. First of all, efficient Local Binary Pattern (LBP) features are obtained from the time-sequential depth faces that are further classified by Generalized Discriminant Analysis (GDA) to make the features more robust and finally, the LBP-GDA features are fed into Hidden Markov Models (HMMs) to train and recognize different facial expressions successfully. The depth information-based proposed facial expression recognition approach is compared to the conventional approaches such as Principal Component Analysis (PCA), Independent Component Analysis (ICA), and Linear Discriminant Analysis (LDA) where the proposed one outperforms others by obtaining better recognition rates.

• 한국콘텐츠학회논문지
• /
• 제9권9호
• /
• pp.125-133
• /
• 2009

오늘날 디지털 기반 커뮤니케이션 환경 속의 사용자들은 상호작용이 가능한 커뮤니케이션을 원하게 되면서, 사용자 중심의 감정표현 도구를 개발할 필요성이 대두되고 있다. 본 연구는 실시간으로 변화하는 개인화된 감정표현이 가능한 감성캐릭터를 개발하기 위한 목적을 가진 기초연구이다. 이를 위해 현재 얼굴표정을 중심으로 감정을 표현하는 기술이 어떻게 구현되고 있는지 국내외 연구동향 및 감성캐릭터를 사용한 다양한 서비스 사례분석을 통해 향후 감성캐릭터의 개발 방향을 제시해보고자 한다.

• International Journal of Advanced Culture Technology
• /
• 제12권1호
• /
• pp.128-133
• /
• 2024

Painting, as an artistic creation with aesthetic characteristics, is inseparable from "shape". "Modeling" is a subjective way of expressing objects, and "black shape" is not only a way of expression, but also a way of composition. "Black shape" is a way of expressing the overall picture of the creator, and "black shape" extracted from the pattern analysis of black and white gray structure is a powerful means to deeply explore the emotions and thoughts of the painter. How to create the expression of subjective intention in the creation of artificial figure painting and to explore the beauty of picture form and the presentation of formal language in multiple dimensions is always sought by painters. Tang Dynasty political stability, economic and cultural development of unprecedented prosperity, "Toujian Diu" as a representative painting of Tang Dynasty, the figure is plump and realistic, colorful but elegant. It not only represents the aesthetic taste of the Tang Dynasty, but also reflects the overall style of the Tang Dynasty's artificial figure painting. The aim of this paper is to explore the value of "black shape" in "Toughen Diagram" and analyze its multi-component form in depth.

• 복식
• /
• 제51권1호
• /
• pp.145-162
• /
• 2001

This study focuses on how fashion products of our contemporary society of consumption are taking on a kitsch look, and on what kind of social and cultural meanings this phenomenon connotate. In general, kitsch is understood as an expression with a negative meanings such as aesthetic inadequacy or bad tastes. In our dairy life however kitsch has been highlighted as an another expressions of subjective beauty and gains positive meaning as almost all the people satisfy their desires through consumption of kitsch products. In order to prove the kitsch phenomenon in fashion products and social and cultural meanings, the researcher has Performed a case study on actual consumption of fashion products and the internal psychological meanings in fashion consumption. The internal psychological meanings of kitsch on consumption of fashion products are emotions and needs such as escape from reality. substitutional satisfaction, belonging confirmation, expression of individual taste, and fun, sexual amusements.