• Title/Summary/Keyword: Face color analysis

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Robust Face detection using Geometric Luminance Distribution Mask and color model under illumination variations (다양한 조명 조건에서의 기하학적 밝기분포 마스크와 색상모델을 이용한 얼굴검출)

  • Cheon, Jun-Ho;Na, Sang-Il;Lee, Jung-Ho;Shin, Min-Chul;Jeong, Dong-Seok
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.11b
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    • pp.913-915
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    • 2005
  • 임의의 영상에서 얼굴을 검출하는 것은 얼굴을 인식하는데 있어서 선행되어야 할 필수과정이다. 본 논문은 조명의 변화가 심한 컬러영상에서 얼굴을 검출하는 것을 목적으로 한다. 본 논문은 기존의 기하학적 밝기분포 마스크만을 사용한 방법이 조명 변화에 취약한 단점을 보완하는데 중점을 두었다. 히스토그램 평활화(Histogram Equalization : HE)와 감마 크기 보정 (Gamma Intensity Correction : GIC) 방법을 이용해서 조명에 대한 간섭을 줄인 후, 영상 전체에서 피부 영역을 추출하고 이어서 눈 후보들을 검출한다. 검출된 눈 후보들로부터 기하학적 밝기분포 마스크를 적용하여 효과적으로 얼굴 후보들을 찾을 수 있고, 이렇게 찾아진 얼굴 후보들은 주성분분석법(Principal Component Analysis : PCA)를 이용해서 얼굴인지 여부를 판별하게 된다. 본 알고리즘은 조명 밝기 등으로 인해 검출률이 떨어졌던 단점을 보완할 수 있었고, 향후 얼굴 검출 분야에 있어서도 활용 가치가 있을 것으로 생각된다.

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THE STUDY ON THE TOPOGRAPHIC VARIATIONS OF FACIAL SKIN IN KOREAN ADULT FEMALES

  • Cho, Joon-Hwan;Ju-An. Yun;Ha, Jae-Hyon;Cho, Youn-Ki
    • Proceedings of the SCSK Conference
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    • 2003.09b
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    • pp.424-437
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    • 2003
  • This study was observed the variations in skin color, hydration, sebum content according to age groups at the forehead, both cheeks, and chin in 154 healthy Korean women subjects with aged 30 to 59. We selected four face sites (forehead, right cheek, left cheek, and chin) and measured with chromameter, corneometer, and sebumeter. All statistical analysis was performed on the computer software package SPSS 8.0. There was no significant difference of lightness between facial four regions in age groups but lightness showed to tend to age-related decrease on each regions. Redness and yellowness showed the highest values on chin and forehead respectively but there was no tendency to steady changes according to age variation. Both cheeks showed the highest hydration level and the lowest sebum content compared with forehead and chin in all age groups and there was tendency to age-related changes of sebum content on both cheeks. So we concluded there was decreasing tendency in lightness and sebum content according to the increase of age and there was no age-related change of skin hydration level at least in facial skin.(omitted)

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The Face Color Analysis According to the Foot Acupressure Stimulation (발 지압 자극에 따른 얼굴 색상 분석)

  • Cho, Dong-Uk;Yeon, Yong-Heum;Min, Ji-Seon;Han, Sang-Hyo;Lim, Soon-Yong;Lim, Sung-Su;Yoo, Hwang-Jun;Ka, Min-Kyoung;Kim, Bong-Hyun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2011.11a
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    • pp.1051-1054
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    • 2011
  • 사람의 신체 중 손, 발, 얼굴 부위는 오장육부와 관련이 있다. 이 중 발은 '제2의 심장'이라고까지 불러지고 있다. 이러한 내용은 발의 건강이 인체의 건강을 유지할 수 있고 혈액순환에도 중요하다는 의미도 있다. 본 논문에서는 발 지압점에서도 신장과 관련된 지압점이 있다는 내용을 기반으로 발 지압을 통한 얼굴의 색상 수치 변화를 분석하였다. 특히, 얼굴 부위 중 신장을 나타내는 지각 부위의 Lab 색체계에서 L값과 CMYK 색체계에서 K값의 변화를 분석하였다. 결론적으로 신장 발지압 자극에 따른 지각 부위의 색상 변화를 통한 지압의 효과성을 객관적으로 입증하는 실험을 수행하였다.

A Proposal for Effect Analysis Techniques of Kidney Hand Acupuncture through Face Image and Voice Signal Measurement (얼굴 영상 및 음성신호 측정을 통한 신장 수지침 효과 분석 기법의 제안)

  • Kim, Bong-Hyun;Cho, Dong-Uk
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37 no.3C
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    • pp.217-223
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    • 2012
  • In this paper, we would like to propose techniques to analyze effect according to stimulation kidney associated hand acupuncture by applying technique to measure changes of facial image and voice signal. To this end, we measured color change of JIGAK(jaw) area associated kidney in facial image and voice signal stimulation before and after of kidney associated hand acupuncture. In addition, we measured changes of the first formant frequency bandwidth and Shimmer to element of voice signal analysis in connection with kidney in experiment. We can be measured reduction of the first formant frequency bandwidth and Shimmer, black of JIGAK area according to stimulation of kidney associated hand acupuncture. Finally, we would like to demonstrate objective effect of kidney associated hand acupuncture through the analysis of statistical significance by measurement techniques of facial image and voice signal.

Efficiency Analysis of Schisandra Tea Using Image & Acoustic Signal Processing (영상과 음성 처리를 이용한 오미자차의 효능 분석)

  • Kim, Bong-Hyun;Cho, Dong-Uk;Han, Kil-Sung;J.Bae, Young-Lae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.7
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    • pp.2975-2981
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    • 2011
  • We propose an efficiency analysis method to test whether Schisandra tea is beneficial to the health of internal organs, and, if so, to find which organ is mostly benefited. Firstly, for this, the color change in the right cheek region of face images before and after drinking Schisandra tea is analyzed using image processing techniques. Also, acoustic analysis experiments on both of the vocal cords vibration and the intensity value of acoustic signal are performed to investigate further Schisandra tea's effectiveness. The results of lung function smoothly by eating omijacha become. Vocal cords vibration and voice energy intensity of the right cheek region has changed a steady increase of the b values were observed.

A Study on Kiosk Satisfaction Level Improvement: Focusing on Kano, Timko, and PCSI Methodology (키오스크 소비자의 만족수준 연구: Kano, Timko, PCSI 방법론을 중심으로)

  • Choi, Jaehoon;Kim, Pansoo
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.17 no.4
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    • pp.193-204
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    • 2022
  • This study analyzed the degree of influence of measurement and improvement of customer satisfaction level targeting kiosk users. In modern times, due to the development of technology and the improvement of the online environment, the probability that simple labor tasks will disappear after 10 years is close to 90%. Even in domestic research, it is predicted that 'simple labor jobs' will disappear due to the influence of advanced technology with a probability of about 36%. there is. In particular, as the demand for non-face-to-face services increases due to the Corona 19 virus, which is recently spreading globally, the trend of introducing kiosks has accelerated, and the global market will grow to 83.5 billion won in 2021, showing an average annual growth rate of 8.9%. there is. However, due to the unmanned nature of these kiosks, some consumers still have difficulties in using them, and consumers who are not familiar with the use of these technologies have a negative attitude towards service co-producers due to rejection of non-face-to-face services and anxiety about service errors. Lack of understanding leads to role conflicts between sales clerks and consumers, or inequality is being created in terms of service provision and generations accustomed to using technology. In addition, since kiosk is a representative technology-based self-service industry, if the user feels uncomfortable or requires additional labor, the overall service value decreases and the growth of the kiosk industry itself can be suppressed. It is important. Therefore, interviews were conducted on the main points of direct use with actual users centered on display color scheme, text size, device design, device size, internal UI (interface), amount of information, recognition sensor (barcode, NFC, etc.), Display brightness, self-event, and reaction speed items were extracted. Afterwards, using the questionnaire, the Kano model quality attribute classification of each expected evaluation item was carried out, and Timko's customer satisfaction coefficient, which can be calculated with accurate numerical values The PCSI Index analysis was additionally performed to determine the improvement priorities by finally classifying the improvement impact of the kiosk expected evaluation items through research. As a result, the impact of improvement appears in the order of internal UI (interface), text size, recognition sensor (barcode, NFC, etc.), reaction speed, self-event, display brightness, amount of information, device size, device design, and display color scheme. Through this, we intend to contribute to a comprehensive comparison of kiosk-based research in each field and to set the direction for improvement in the venture industry.

A Study on Manufacturing Techniques and Conservation Treatment for Yongjam, Ceremonial Hairpin with a Dragon-shaped Engraving in 17th Century - Focusing on Yongjam of the Clothes Worn by Oejae Yi Dan-ha and His wife, National Folklore Cultural Heritage No.4 - (17세기 대례용 용잠의 제작기법 조사와 보존처리 - 국가민속문화재 제4호 외재 이단하 내외옷 용잠을 중심으로 -)

  • Ryu, Dongwan;An, Boyeon;Lee, Ryangmi;Lee, Jaesung;Park, Yeonghwan;You, Harim
    • Journal of Conservation Science
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    • v.37 no.3
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    • pp.270-281
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    • 2021
  • The Yongjam of Oejae, Yi Dan-ha's wife, is an ornamental hairpin with a dragon-shaped engraving; designated as National Folklore Cultural Heritage No. 4. It is also a component of the ceremonial costume, and an artifact of great value as it clearly identifies the position of the wearer and the period of this artifact. The Yongjam has been well preserved in general; however, various pollutants and corrosive products have affected the engraved patterns, requiring conservation treatment. Furthermore, a non-destructive analysis was conducted to identify the components of the materials and the manufacturing techniques used in the ornament. The Yongjam is hollow inside to reduce its weight when placed in the hair and has a color contrast of gold, red, and black. The decorative part and the body were made separately. That is, the body was made from an alloy of copper, silver, and zinc, and its joint was elaborately connected without any overlaps. In the decorative part, different alloy ratios were identified in the dragon's face, beard, horn, body, and fin. Further, for the dragon's face with its delicate patterns, an alloy of silver and copper was used, likely to make the face appear as realistic as possible.

Facial Image Analysis Algorithm for Emotion Recognition (감정 인식을 위한 얼굴 영상 분석 알고리즘)

  • Joo, Y.H.;Jeong, K.H.;Kim, M.H.;Park, J.B.;Lee, J.;Cho, Y.J.
    • Journal of the Korean Institute of Intelligent Systems
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    • v.14 no.7
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    • pp.801-806
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    • 2004
  • Although the technology for emotion recognition is important one which demanded in various fields, it still remains as the unsolved problem. Especially, it needs to develop the algorithm based on human facial image. In this paper, we propose the facial image analysis algorithm for emotion recognition. The proposed algorithm is composed as the facial image extraction algorithm and the facial component extraction algorithm. In order to have robust performance under various illumination conditions, the fuzzy color filter is proposed in facial image extraction algorithm. In facial component extraction algorithm, the virtual face model is used to give information for high accuracy analysis. Finally, the simulations are given in order to check and evaluate the performance.

Production of an Interactive Artwork through Analysis on the Expression Method for Subject Area on Screen (Focused on Color, Face and Brightness) (화면의 주제영역 표현방법 분석을 통한 인터랙티브 아트 제작(색상, 면수, 명도를 중심으로))

  • Kim, Kyoung-Nam;Lim, Yang-Mi
    • Journal of Digital Contents Society
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    • v.13 no.3
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    • pp.439-449
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    • 2012
  • Recently, many interactive artworks produce through convergence of art and scientific technology. Artists or designers should cooperate with other areas for analysis in order to share database. According to these requirements, In this study, we analyze Kandinsky's works which are more emphasis on subject area than the emphasis to background area by using a number of colors, faces, and brightness levels. Due to this approach, it determines how to represent for stable screen composition attracting viewer's eyes. As a result, the subject area has more a number of colors, faces, and brightness levels than the background area. In addition, we produce the interactive artwork based on the analyzed data. According to the requirement of convergence and collaboration in the historical background, this study will be able to contribute to make the collaboration by sharing common information between artists and professionals in other areas. In addition, it is expected that other production makers who do not have the background of arts education will be able to configure the visual screen.

A Study on Speechreading about the Korean 8 Vowels (한국어 8모음 자동 독화에 관한 연구)

  • Lee, Kyong-Ho;Yang, Ryong;Kim, Sun-Ok
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.3
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    • pp.173-182
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    • 2009
  • In this paper, we studied about the extraction of the parameter and implementation of speechreading system to recognize the Korean 8 vowel. Face features are detected by amplifying, reducing the image value and making a comparison between the image value which is represented for various value in various color space. The eyes position, the nose position, the inner boundary of lip, the outer boundary of upper lip and the outer line of the tooth is found to the feature and using the analysis the area of inner lip, the hight and width of inner lip, the outer line length of the tooth rate about a inner mouth area and the distance between the nose and outer boundary of upper lip are used for the parameter. 2400 data are gathered and analyzed. Based on this analysis, the neural net is constructed and the recognition experiments are performed. In the experiment, 5 normal persons were sampled. The observational error between samples was corrected using normalization method. The experiment show very encouraging result about the usefulness of the parameter.