• 제목/요약/키워드: object-to-mouth

검색결과 49건 처리시간 0.022초

영유아 이상징후 감지를 위한 표정 인식 알고리즘 개선 (The improved facial expression recognition algorithm for detecting abnormal symptoms in infants and young children)

  • 김윤수;이수인;석종원
    • 전기전자학회논문지
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    • 제25권3호
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    • pp.430-436
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    • 2021
  • 비접촉형 체온 측정 시스템은 광학 및 열화상 카메라를 활용하여 집단시설의 발열성 질병을 관리하는 핵심 요소 중 하나이다. 기존 체온 측정 시스템은 딥러닝 기반 얼굴검출 알고리즘이 사용되어 얼굴영역의 단순 체온 측정에는 활용할 수 있지만, 의사표현이 어려운 영유아의 이상 징후를 인지하는데 한계가 있다. 본 논문에서는 기존의 체온 측정 시스템에서 영유아의 이상징후 감지를 위해 표정인식 알고리즘을 개선한다. 제안된 방법은 객체탐지 모델을 사용하여 영상에서 영유아를 검출한 후 얼굴영역을 추출하고 표정인식의 핵심 요소인 눈, 코, 입의 좌표를 획득한다. 이후 획득된 좌표를 기반으로 선택적 샤프닝 필터를 적용하여 표정인식을 진행한다. 실험결과에 따르면 제안된 알고리즘은 UTK 데이터셋에서 무표정, 웃음, 슬픔 3가지 표정에 대해 각각 2.52%, 1.12%, 2.29%가 향상되었다.

댓글이 음원 판매량에 미치는 차별적 영향에 관한 텍스트마이닝 분석 (The Impact of Comments on Music Download and Streaming: A Text Mining Analysis)

  • 박명석;권영진;이상용
    • 지식경영연구
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    • 제19권2호
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    • pp.91-108
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    • 2018
  • This study mainly focused on measuring the impact of comments for a particular song on the number of streamings and downloads. We modeled multiple regression equations to perform this analysis. We chose digital music market for the object of analysis because of its inherent characteristics, such as experience goods, high bandwagon effect, and so on. We carefully utilized text mining technique in accordance with the algorithm of Naïve Bayes classifier to distinguish whether a comment for a piece of music be regarded as positive or negative. In addition, we used 'size of agency' and 'existence of hit song' as moderating variables. The reason for usage of those variables is that those are assumed to affect users' decision for selecting particular song especially when downloading or streaming via music sites. We found empirical evidences that positive comments for a particular song increase the number of both downloads and streamings. However, positive comments may decrease the number of downloads when the size of agency of the artist is big. As a result, we were able to say that a positive comment for a particular song functioned as 'word-of-mouth' effect, inducing other users' behavioral response. We also found that other features of an artist such as size of the agency that the artist belongs to functioned as an external factor along with feature of the song itself.

주자독서환(朱子讀書丸)의 아밀로이드베타로 유발된 생쥐 알츠하이머모델에 대한 효과 (Effects of Jujadokseo-hwan on Mice with Alzheimer's Disease Induced by $Amyloid-{\beta}$)

  • 임강현;고흥;경혁수
    • 대한한방내과학회지
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    • 제27권1호
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    • pp.253-264
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    • 2006
  • Object: This research investigated effects of Jujadokseo-hwan on mice with Alzheimer's Disease induced by $amyloid-{\beta}$. According to Dongyibogam, Jujadokseo-hwan can cure amnesia. Amyloid-B is believed to induce oxidative stress and inflammation in the brain, postulated to play important roles in the pathogenesis of Alzheimer's disease. In this way $Amyloid-{\beta}$ induces Alzheimer's Disease. Methods : In order to make an efficient prescription and cope with dementia, learning and memory functions of mice were tested on passive avoidance test and V-maze task. $NF-{\kappa}B$ were measured from protein derived from the brain. RT-PCR was done for !gene analysis. Primers were protein kinase Band $NGF-{\alpha}$. Results : 1. Jujadokseo-hwan was effective for memory capacity on passive avoidance test. but noneffective for spatial memory capacity and locomotor activity on Y -maze task. 2. The measurement of $NF-{\kappa}B$ showed upward tendancies and the result of RT-PCR showed up-regulation when given Jujadokseo-hwan by mouth. Conclusion: Results suggest that Jujadokseo-hwan is effective on mice with Alzheimer's Disease induced by $amyloid-{\beta}$.

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개선된 스네이크를 이용한 얼굴 특징요소의 윤곽 추출 (Contour Extraction of Facial Features Based on the Enhanced Snake)

  • 이성수;장종환
    • 정보처리학회논문지:소프트웨어 및 데이터공학
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    • 제4권8호
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    • pp.309-314
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    • 2015
  • 얼굴 요소의 윤곽을 추출하는 대표적인 방법 중의 하나는 스네이크다. 스네이크는 간단하고 빠르지만 초기 윤곽 및 개체 형태에 따라 성능이 결정된다. 본 논문에서는 이러한 문제를 해결하기 위해 스네이크 세그먼트의 중간 위치에 스네이크 포인트를 추가하는 방법으로 윤곽을 더 정확하게 추출할 수 있는 개선된 스네이크를 제안한다. 제안한 방법은 6개의 입과 눈 실험 영상에 적용하여 Greedy 스네이크보다 RSD가 2.8%에서 5.8% 정도 감소하였다. 특히 RSD 감소는 대부분 심한 굴곡이 갖는 윤곽 영역에서 얻음으로써 더 정확한 윤곽 추출을 실험을 통해 확인하였다.

열성 경련에 대한 어머니의 인식도 조사 (Cognition of mothers for febrile convulsion)

  • 장규태;김장현;최은영
    • 대한한방소아과학회지
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    • 제18권2호
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    • pp.209-223
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    • 2004
  • Objective : This study was performed to investigate the knowledge, concerns, attitudes of mothers about febrile convulsion in order to suggest education programs. Methods : The subjects of questionnaire investigation were 142 mothers visited pediatrics in Gyeongju dongguk oriental hospital between 3 september and 16 December 2004 with child under 5 years of age. Results : The rate of incorrect answer was 46.0%, experienced mothers had significant high scores than non-experienced mothers in knowledge. Mothers believed reccurent febrile convulsion will cause brain damage(88.7%), considered every febrile convulsion child will have another FC(68.3%). Mothers anticipated inserting object into the child's mouth(72.5%), rushing the child to the hospital(67.6%) during convulsion. Mothers concerned about the risk of subsequent epilepsy(70%) and experienced mothers measured the child's body temperature more frequently than before(66.7%). Conclusions : Answered mothers had inadequate knowledge, high concerns, and didn't know proper management. This suggests that enough information is needed to mothers and proper education programs should be developed in febrile convulsion.

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정병 받침그릇(淨甁 承盤) 살핌 -고려불화(佛畵)-수월관음그림(水月觀音圖)으로 - (A Study on the "Holing-Bowl(받침그릇, 承盤) for the Jung-Byoung(정병, 淨甁)" or The Sacred Water-pot)

  • 강순형
    • 헤리티지:역사와 과학
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    • 제34권
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    • pp.124-136
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    • 2001
  • Among many different types of wares, we have amazing Sacred Water-pot(따르개, 注子) from Goryo-period(고리, 高麗, 918-1392). The stylistic peculiarity of Jung-Byoung(정병, 淨甁) is described in "Goryo-Dhogyoung, 고리도경, 高麗圖經", the classical design canon. It is said, "A sharpened mouth with narrow and prolonged neck is attached upon the broad mouth with thicker and even longer neck of the pot whose body intimates to the shape of melon." One could find this Jung-Byoung similar to the Indian drinking water jar, Kundika, which has been. even today, an everyday article in houses as well as in temples. In the early Buddhist cult, the object had been adopted as personal belonging of the Bodhisattvas(보살, 菩薩), especially of the Bodhisattva Avalokitesvara(관세음보살,觀世音菩薩). In short, the purifying character of water is met by the sacred ware to deliver the refreshing Sweet-Water(Holy-Water, 깨맑물, 단물, 단이슬물, 정수, 감로, 감로수, 성수, 淨水, 甘露, 甘露水, 聖水): For the holy purpose of fulfilling the thirst of people, of symbolozing the virtuous dharma. Thus, Ggamslkh-Byoung(깨맑병,淨水), the literal Korean name, denotes purifying and clarifying and clarifying water-pot to us. Among many other Asian countries, India, China, Korea, and Japan have a profound cult of the sacred water-pot(Ggamalkh-Byoung, Jung-Byoung, 깨맑병, 정병, 정수병, 감로병, 감로수병, 淨甁, 淨水甁, 甘露甁, 甘露水甁). Therefore, this charming holy object drew much attention not only from master artisans to shape and deliver them to people but also from painters and sculptors for their endowment of the sacred images dedicated to Buddha(부처,佛,佛陀). In China, the sacred water pot emerged in the period of Tang(당, 唐, 618~907)-Period and underwent much sophistication later on, I. e., from earthenware, ceramic-porcelain, bronze, and silver. However, the following represents a challenge to the well-known Goryo-Thangka(고리불화, 高麗佛畵) Painting of Bodhisattva Avalokitesvara to our speculation on the Sacred Water-pot(정병, 淨甁). The image suggests, when examined closely, that the Sacred Water-pot has been accompanied by, or placed in, a transparent glasswere(유리그릇) or crystalbowl(수정그릇)! We have no other physical proof of the existence of such a Holding-Bowl(받침그릇, 承盤), except for in this particular painting. This Holding-Bowl would have not been a mere elaboration on the practicality of controling the drips from the mouth of the pot. As in the chapter on Tang-ho(탕호, 湯壺), or thermal bowl, in the "Goryo-Dhogyoung" it advises readers that this style of bowl is to be filled with hot water, and thus function as a preserver of heat in the water inside the pot. As an offering to the Buddha, the Sacred Water-pot could have been used for serving him hot tea. Hence the sacred bottle is to contain the refreshing water, the water transcends to nectar, and the nectar is prepared as a nectar tea to offer the Buddha. For both the Holding-Bowl of Ggamalkh-Byoung(Jung-Byoung)and the Celestial-Robe(날개옷, 天衣) of the Bodhisattva Avalokitesvara, whose specified character is the Water-Moon(수월, 水月) in this particular Thangka(불화, 佛畵) painting, the transparency is essential. This is to refer to the purity and the lucid clarity of Bodhisattva Avalokitesvara and at a deeper level, to refer to the world of Buddhas-the Tushita(Paradise, Heaven, Eden, 극락, 불세계, 極樂, 佛世界). Howerver, without the discovery of an actual Holding-Bowl, accompanied by a Sacred Water-pot, such speculation will necessarily remain hypothetical. Nevertheless, there is an abundance of evidence of our ancient craftsmanship in jade and ctystal, dating back to the Bronze Age(1000~2B.C.) in Korea. By the time of the Three Kingdom-Period(삼국시대, 三國時代, 57B.C.~935A.D.), and especially the Silla(신라, 新羅, 57B.C.~935A.D.)-Empire, the jade and crystal ornamentation had become very intricate indeed. By the Goryo-Period(918~1392) and Chosun-Period(조선, 朝鮮,1392~1910),crystal-ware and jade art were popular in houses and Buddhist temples, whose master artsanship was heightened in the numerous Sarira-Cases(사리그릇, 舍利器), containing relics and placed inside Stupas(탑, 투, 搭)! Therefore, discovering a tiny part of the crystal or jade Holding-Bowl for the Sacred Water-pot and casting full light on this subject, would not be totally impossible. Lastly the present article shares the tiny hope for a sudden emergence of such a Holding-Bowl.

2D 얼굴 영상을 이용한 로봇의 감정인식 및 표현시스템 (Emotion Recognition and Expression System of Robot Based on 2D Facial Image)

  • 이동훈;심귀보
    • 제어로봇시스템학회논문지
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    • 제13권4호
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    • pp.371-376
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    • 2007
  • This paper presents an emotion recognition and its expression system of an intelligent robot like a home robot or a service robot. Emotion recognition method in the robot is used by a facial image. We use a motion and a position of many facial features. apply a tracking algorithm to recognize a moving user in the mobile robot and eliminate a skin color of a hand and a background without a facial region by using the facial region detecting algorithm in objecting user image. After normalizer operations are the image enlarge or reduction by distance of the detecting facial region and the image revolution transformation by an angel of a face, the mobile robot can object the facial image of a fixing size. And materialize a multi feature selection algorithm to enable robot to recognize an emotion of user. In this paper, used a multi layer perceptron of Artificial Neural Network(ANN) as a pattern recognition art, and a Back Propagation(BP) algorithm as a learning algorithm. Emotion of user that robot recognized is expressed as a graphic LCD. At this time, change two coordinates as the number of times of emotion expressed in ANN, and change a parameter of facial elements(eyes, eyebrows, mouth) as the change of two coordinates. By materializing the system, expressed the complex emotion of human as the avatar of LCD.

화상전송 서비스를 위한 객체 분할 및 지식 기반 얼굴 특징 검출 (Object Segmentation for Image Transmission Services and Facial Characteristic Detection based on Knowledge)

  • 임춘환;양홍영
    • 전자공학회논문지T
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    • 제36T권3호
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    • pp.26-31
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    • 1999
  • 이 논문에서는 영상통신을 위한 객체 분할 알고리즘과 지식기반 얼굴 특징 검출 알고리즘을 제안한다. 이를 위해 일정한 조도 상태에서 비디오 카메라로부터 동일거리에서 256×256 크기의 그레이 스케일 256 레벨로 두장의 영상을 취득한 후 가우시안 필터를 이용하여 영상 내에 존재하는 잡음을 제거한다. 취득된 두 입력영상은 비디오가 가리키고 있는 배경영상과 배경영상 내에 사람이 포함된 경우의 영상이다. 그리고 배경 영상과 얼굴이 포함된 입력 영상의 차를 구한다. 다음으로 차영상에 대해 축소와 팽창 과정을 통해 얼굴영역 내의 잡음을 제거한 후 좌, 우에서 픽셀 값을 조사하여 마스크를 생성한다. 그리고 마스크를 얼굴이 존재하는 원 영상에 투영하여 배경에서 얼굴영역을 분할한 후 얼굴영역의 에지성분을 조사하여 눈, 코, 귀, 입을 분할한다 시뮬레이션 결과를 통하여 제안된 알고리즘의 효율성을 입증한다.

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소양인, 태음인의 표준 3차원 얼굴 모델링 개발 및 그 특성에 관한 연구 (Studies on the Modeling of the Three-dimensional Standard Face and Deriving of Facial Characteristics Depending on the Taeeumin and Soyangin)

  • 이선영;황민우
    • 사상체질의학회지
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    • 제26권4호
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    • pp.350-364
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    • 2014
  • Objectives This study was aimed to find the significant features of face form according to the Taeeumin and Soyangin by analyzing the three-dimensional face information data. Also, making standard face of the Taeeumin and Soyangin was an object of this study. Methods We collected three-dimensional face data of patients aged between 20~45 years old diagnosed by a specialist of Sasang constitutional medicine. The data were collected using a 3D scanner, Morpheus 3D(Morpheus Corporation, KOREA). Extracting a face feature point total of 64, was set to 332 pieces(height, angle, ratio, etc.) of each variable between feature points. ANOVA test were used to compare the characteristics of subjects according to the Taeeumin and Soyangin. Results When not to consider gender, the Taeeumin and Soyangin were different from the 18 items(3 items in the ear, 9 items in the eye, 1 item in the nose, 1 item in the mouth, 4 items in the jaw). When to consider gender, the Taeeumin and Soyangin men were different from the 6 items(1 item in the ear, 2 items in the nose, 3 items in the face). And the Taeeumin and Soyangin women were different from 17 items(1 item in the ear, 10 items in the eye, 2 items in the nose, 1 item in the mouth, 3 items in the face). Conclusions These results show Taeeumin's face(both men and women) width of the right and left is larger than the length of the top and bottom. Compared to men of Soyangin, men of Taeeumin has greater wings of the nose. Compared to women of Soyangin, women of Taeeumin has longer length of the eye. Soyangin's face(both men and women) length of the top and bottom is larger than the width of the right and left. Compared to men of Taeeumin, men of Soyangin has smaller wings of the nose. Compared to women of Taeeumin, women of Soyangin has more stereoscopic facial features at the top and bottom of the lateral face. Also, by accumulating three-dimensional face data, this study modeled the standard facial features by Taeeumin and Soyangin. These results may be helpful in the development of Sasang constitutional diagnostics utilizing the characteristics of the facial form at later.

일반화 대칭 변환을 이용한 축소 영상에서의 얼굴특징추출 (Facial Feature Extraction in Reduced Image using Generalized Symmetry Transform)

  • 팽영혜;정성환
    • 한국정보처리학회논문지
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    • 제7권2호
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    • pp.569-576
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    • 2000
  • 일반화 대칭 변환(Generalized Symmetry Transform : GST)은 디칭성을 이용하여 영상의 사전 정보 없이 얼굴 특징의 위치를 추출할 수 있는 방법이다. 그러나, 눈, 코, 입 등의 특징보다 마스크의 크기가 커야 하므로 많은 처리시간이 필요하다. 그리고, 얼굴의 특징을 결정하기 위해 통계적 처리가 수반되는 중심선 계산으로 인해 처리 과정이 복잡하다. 이러한 단점을 개선하기 위해, 본 논문에서는 두 가지 방법을 제안하였다. 첫째, 처리 시간을 단축하기 위해 원 영상 대신 영상의 정보를 충분히 가지는 축소 영상을 사용하였다. 둘째, 중심선 계산을 위해 복잡한 통계적 처리 대신 추출된 첨두치의 위치를 이용하였다. 제안된 방법의 성능을 살펴보기 위해, 정면, 회전, 안경, 수염이 있는 영상 등 200개의 영상에 대해 실험하였다. 그 결과, 제안된 방법은 85%의 특징 탐지율과 기존의 방법에 비해 약 53배 이상감소된 처리시간을 나타내었다.

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