• Korean Institute of Interior Design Journal
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• v.21 no.5
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• pp.244-253
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• 2012

Vincent van Gogh is a Dutch postimpressionism artist that is one of the most influential painter of the 20th century with his vivid colors and sensibility. 'The Bedroom at Arles' is the art piece that van Gogh himself had admitted to be a great artwork, which also reflects the story of his life and inner thoughts. The spacial characteristics of 'The Bedroom at Arles' are amanufactures the following. First, the space shown at 'The Bedroom at Arles' exhibits the phenomenon of undoing the law of perspective by authorizing individual existence to the objects and space, instead of fitting in the objects into the space in the order given by the law of perspective; entirely rearranging the reminiscent space from past. Secondly, the expression 'bedroom' reflects that the subject was about his own experience with the space and a representation of his imagination, which is a metaphorical symbol. Thirdly, van Gogh used strong colors and brush touches to express his subjective opinion, which aren't the actual shades of the scene, but chosen only to approach the space and objectives with his own symbolic interpretation from his heart. Through a synthetic overview of the characteristics of van Gogh's 'The Bedroom at Arles', it could be told that he holds an essential Space perception system, in hir inner self. The space is intentionally rearranged and strangely altered to form an entirely new relation, breaking the tension from the systematically stable rules and orders. 'The Bedroom at Arles' seems to express an unique and symbolic sensation and experience through the combination of its colors and spacial structure.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.2 no.3
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• pp.53-60
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• 2009

The vision-based driver fatigue detection is one of the most prospective commercial applications of facial expression recognition technology. The facial feature tracking is the primary technique issue in it. Current facial tracking technology faces three challenges: (1) detection failure of some or all of features due to a variety of lighting conditions and head motions; (2) multiple and non-rigid object tracking; and (3) features occlusion when the head is in oblique angles. In this paper, we propose a new active approach. First, the active IR sensor is used to robustly detect pupils under variable lighting conditions. The detected pupils are then used to predict the head motion. Furthermore, face movement is assumed to be locally smooth so that a facial feature can be tracked with a Kalman filter. The simultaneous use of the pupil constraint and the Kalman filtering greatly increases the prediction accuracy for each feature position. Feature detection is accomplished in the Gabor space with respect to the vicinity of predicted location. Local graphs consisting of identified features are extracted and used to capture the spatial relationship among detected features. Finally, a graph-based reliability propagation is proposed to tackle the occlusion problem and verify the tracking results. The experimental results show validity of our active approach to real-life facial tracking under variable lighting conditions, head orientations, and facial expressions.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.603-607
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• 2004

The vision-based driver fatigue detection is one of the most prospective commercial applications of facial expression recognition technology. The facial feature tracking is the primary technique issue in it. Current facial tracking technology faces three challenges: (1) detection failure of some or all of features due to a variety of lighting conditions and head motions; (2) multiple and non-rigid object tracking and (3) features occlusion when the head is in oblique angles. In this paper, we propose a new active approach. First, the active IR sensor is used to robustly detect pupils under variable lighting conditions. The detected pupils are then used to predict the head motion. Furthermore, face movement is assumed to be locally smooth so that a facial feature can be tracked with a Kalman filter. The simultaneous use of the pupil constraint and the Kalman filtering greatly increases the prediction accuracy for each feature position. Feature detection is accomplished in the Gabor space with respect to the vicinity of predicted location. Local graphs consisting of identified features are extracted and used to capture the spatial relationship among detected features. Finally, a graph-based reliability propagation is proposed to tackle the occlusion problem and verify the tracking results. The experimental results show validity of our active approach to real-life facial tracking under variable lighting conditions, head orientations, and facial expressions.

• ETRI Journal
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• v.43 no.5
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• pp.869-880
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• 2021

Herein, we estimate the direction of arrival (DOA) of non-Gaussian signals for nested arrays (NAs) by implementing the fourth-order difference co-array (FODC) and successive methods. In particular, considering the property of the fourth-order cumulant (FOC), we first construct the FODC of the NA, which can obtain O(N⁴) virtual elements using N physical sensors, whereas conventional FOC methods can only obtain O(N²) virtual elements. In addition, the closed-form expression of FODC is presented to verify the enhanced degrees of freedom (DOFs). Subsequently, we exploit the vectorized FOC (VFOC) matrix to match the FODC of the NA. Notably, the VFOC matrix is a single snapshot vector, and the initial DOA estimates can be obtained via the discrete Fourier transform method under the underdetermined correlation matrix condition, which utilizes the complete DOFs of the FODC. Finally, fine estimates are obtained through the spatial smoothing-Capon method with partial spectrum searching. Numerical simulation verifies the effectiveness and superiority of the proposed method.

• Journal of Korean Medical classics
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• v.34 no.2
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• pp.207-223
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• 2021

Objectives : This paper studied the different disease sites according to Yin and Yang deviation and the principal to applying the Five Shu Points acupuncture method to these sites of the Yin-Yang needling method as explained in the Shouyaogangrou chapter of the Lingshu. Methods : Of the seasonal needling method in the Neijing, the principle to managing the Five Shu Points and indications of each point were examined. Next, clinical applications of the Five Shu Points were analyzed. Descriptions of clinical expression were collected and examined to understand the underlying pattern. Results : If we connect the disease sites of the Yin-Yang needling method to the Five Shu Points needling method according to the seasonal changes, the Yang of Yin connects to Spring, Yin of Yang to Summer, Yang of Yang to Autumn, and Yin of Yin to Winter. Of the needling site, the collateral vessel is the collateral vessel of Spring, 'Meridian of Yin' is the meridian of the Yin domain or the meridian points of the Yin meridian. 'He of Yang' is the He point of the Yang meridian, and the Yin Xing and Shu are the Xing and Shu points of the Yin meridian. Upon examining cases in the Neijing where the Five Shu Points were applied, it could be found that the Xing and Shu points of the Yin meridian were used together, while the He point of the Yang meridian was used to eliminate Yang pathogen or to stimulate Yang qi, which matches the Yin-Yang needling method of the Shouyaogangrou chapter of the Lingshu. Conclusions : The Yin and Yang of the needling sites from the Yin-Yang needling method in the Shouyaogangrou chapter of the Lingshu refers to the Yin and Yang meridians, or the Yin and Yang domains. In the context of disease site description, the former Yin and Yang describes a spatial aspect, while the latter Yin and Yang refers to the vicissitudes of qi according to temporal change.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.291-297
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• 2021

The current formal and memorized design repetition training and practice is wandering in the uniform flat design thinking expression. To change these two-dimensional current issues into a three-dimensional design method, set the direction for each grade level under the integrated convergence educational goal and carry out projects step by step to understand design, the principle of spatial composition, the introduction of traditional design history, and the overall design of craft design. Creative and practical skills such as approach should be cultivated. Designers can only be produced through systematic education and training. In order to lead society and succeed, a designer who has experienced solutions and countermeasures on how to adapt themselves to the demands of various changes in the times must come to the field. Education experts insisted on innovation of the organizational structure and subject of the education system, and emphasized the importance of education in response to the rapid pace of change in the 21st century. This study aims to propose an educational system that combines academic research with a structural approach to tasks by setting a project that reflects the needs of society for convergence practice in which design and adjacent disciplines are linked through understanding and analysis of these issues.

• Atmosphere
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• v.33 no.3
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• pp.307-317
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• 2023

This study investigates the physical mechanisms that contributed to the 2022 European record-breaking heatwave throughout May-August (MJJA). The European climate has experienced surface warming and drying in the recent decade (1979~2022) which influences the development of the 2022 European heatwave. Since its spatial pattern resembles the 2003 European heatwave which is a well-known case developed by the strong coupling of near-surface conditions to land surface processes, the 2022 heatwave is compared with the 2003 case. Understanding heatwave development is carried out by the European Centre for Medium-Range Weather Forecasts (ECMWF) Reanalysis version 5 (ERA5) and daily maximum surface temperature released by NCEP (National Centers for Environmental Prediction) CPC (Climate Prediction Center). The results suggest that the persistent high pressure along with clear sky tends to increase the downward shortwave radiation which leads to enhanced sensible heat flux with the land surface dryness. Terrestrial Coupling Index (TCI), a process-based multivariate metric, is employed to quantitatively measure segmented feedback processes, separately for the land, atmosphere, and two-legged couplings, which appears to the development of the 2022 heatwave, can be viewed as an expression of the recent trends, amplified by internal land-atmosphere interactions.

• Journal of the Korea Fashion and Costume Design Association
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• v.25 no.2
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• pp.135-150
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• 2023

The purpose of this study is to understand the formative characteristics of futuristic virtual fashion revealed in virtual fashion platforms targeting the human body. First, the current status of fashion in the metaverse and futurist fashion were reviewed and summarized by referring to prior research. Next, among the items posted on DRESSX, "futurism" was searched and those resturning a positive result were collected as research subjects. The characteristics were organized into design elements: colors, shapes, materials, and patterns. Futuristic aesthetic characteristics were derived from the characteristics of each design element. As a result, color showed the characteristics of achromatic, vivid and neon colors, multi-color and gradation, multi-color due to reflected light, and color conversion. As for the form, a body-concious look or exaggerated silhouettes, spatial expressions in geometric structures, forms imitating living things, and fluid silhouettes using clouds were prominent. Materials showed the digitization of universal clothing materials, application of industrial materials, use of metal materials, and unrealistic materials. In the patterns, geometric abstract patterns, patterns that reveal the digital world view, and moving fluid patterns appeared. The aesthetic characteristics of futurism in virtual fashion were revealed in four categories: visual dynamics, high-tech sensibility, variability, kineticisim. Visual dynamics were revealed in geometric forms, and intense neon colors. High-tech sensibility was prominent in the use of metal and industrial materials, light emission, and patterns of the digital world view. The expression of multiple colors by reflected light and the change showed the variability of futurism. The use of unrealistic materials, such as clouds and fire and fluid silhouettes expressed kineticisim. The infinite expressiveness of virtual fashion made it possible to actively express the aesthetic characteristics of futurism.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.875-882
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• 2023

In this paper, we propose a virtual tuning technique for a temperature controller using the PID algorithm. Virtual simulation on a computer was used using the mathematical expression of the control object. A technique for accurately calculating the gain of the PID algorithm was introduced through detailed computer data analysis, and superior performance compared to conventional experimental tuning results was verified. In addition, it has the advantage of replacing tuning experiments conducted on actual control subjects, so there are no temporal or spatial limitations. Tuning experiments that actually operate the control object do not show detailed data that appears during the process. The accuracy of the experiment could not be guaranteed, and the results could not be confirmed immediately. Through the proposed technique, the entire tuning process can be accurately checked on a computer and the cause of problems that occur can also be analyzed.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.3
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• pp.551-562
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• 2024

This study relates to a method and device for extracting and tracking moving objects. In particular, objects are extracted using different images between adjacent images, and the location information of the extracted object is continuously transmitted to provide accurate location information of at least one moving object. It relates to a method and device for extracting and tracking moving objects based on tracking moving objects. People tracking, which started as an expression of the interaction between people and computers, is used in many application fields such as robot learning, object counting, and surveillance systems. In particular, in the field of security systems, cameras are used to recognize and track people to automatically detect illegal activities. The importance of developing a surveillance system, that can detect, is increasing day by day.