• Title/Summary/Keyword: visual place recognition

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Individual Recognition between Siblings of the Young Black-tailed Gull (Larus crassirostris)

  • Chung, Hoon;Lee, Hyun-Jung;Park, Shi-Ryong
    • The Korean Journal of Ecology
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    • v.25 no.6
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    • pp.365-369
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    • 2002
  • We had 18 eggs artificially hatched in a mass breeding place of black-tailed gulls and examined the individual recognition between young siblings in a laboratory environment. The results of the experiment showed that the young gulls selectively responded to their siblings and non-siblings at an early stage after hatching. It was shown that they began to recognize the begging call among the voice signals of siblings and non-siblings 15-16 days after hatching, and the chirirah call 11-12 days after hatching. Also, more significant results were shown with the chirirah call than with the begging call. In an experiment of visual recognition between siblings and non-siblings, the young black-tailed gulls approached their siblings significantly 9-10 days after hatching. The recognition between young siblings in a mass breeding place provides an important evolutionary indicator in terms of their social behaviors.

Place Recognition Using Ensemble Learning of Mobile Multimodal Sensory Information (모바일 멀티모달 센서 정보의 앙상블 학습을 이용한 장소 인식)

  • Lee, Chung-Yeon;Lee, Beom-Jin;On, Kyoung-Woon;Ha, Jung-Woo;Kim, Hong-Il;Zhang, Byoung-Tak
    • KIISE Transactions on Computing Practices
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    • v.21 no.1
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    • pp.64-69
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    • 2015
  • Place awareness is an essential for location-based services that are widely provided to smartphone users. However, traditional GPS-based methods are only valid outdoors where the GPS signal is strong and also require symbolic place information of the physical location. In this paper, environmental sounds and images are used to recognize important aspects of each place. The proposed method extracts feature vectors from visual, auditory and location data recorded by a smartphone with built-in camera, microphone and GPS sensors modules. The heterogeneous feature vectors were then learned by an ensemble learning method that learns each group of feature vectors for each classifier respectively and votes to produce the highest weighted result. The proposed method is evaluated for place recognition using a data group of 3000 samples in six places and the experimental results show a remarkably improved recognition accuracy when using all kinds of sensory data comparing to results using data from a single sensor or audio-visual integrated data only.

A Computer Vision-based Assistive Mobile Application for the Visually Impaired (컴퓨터 비전 기반 시각 장애 지원 모바일 응용)

  • Secondes, Arnel A.;Otero, Nikki Anne Dominique D.;Elijorde, Frank I.;Byun, Yung-Cheol
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.65 no.12
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    • pp.2138-2144
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    • 2016
  • People with visual disabilities suffer environmentally, socially, and technologically. Navigating through places and recognizing objects are already a big challenge for them who require assistance. This study aimed to develop an android-based assistive application for the visually impaired. Specifically, the study aimed to create a system that could aid visually impaired individuals performs significant tasks through object recognition and identifying locations through GPS and Google Maps. In this study, the researchers used an android phone allowing a visually impaired individual to go from one place to another with the aid of the application. Google Maps is integrated to utilize GPS in identifying locations and giving distance directions and the system has a cloud server used for storing pinned locations. Furthermore, Haar-like features were used in object recognition.

Recognition according to gender of sexual harassment in the office (직장내 성별 성희롱 인식에 관한 연구)

  • 이재순;두경자
    • Journal of Family Resource Management and Policy Review
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    • v.6 no.2
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    • pp.1-14
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    • 2002
  • The purpose of this study was examine and clarify the recognition according to gender of sexual harassment in the office. The samples were consisted of 250 employees in a seoul headquarter and 13 branches of S bank. the data were analyzed using percentage, frequency, mean, 1-test, F-test and ANOVA. The results of this study were as follows; 1) female workers recognized sexual harassment as severe problem, but male workers as minor and trivial things. 2) workers recognized the cause of sexual harassment as female low position in the office and sexual distinction 3) workers recognized sexual harassment type as visual, verbal and physical harassment. 4) workers recognized the main assaulters of sexual harassment as male senior workers and co-workers. 5) worker recognized place of harassment as times of workers' dining together. 6) worker recognized the victim of sexual harassment was apt to experience anger, hurt of self-respect, shame and embarrassment. 7) female workers recognized necessity of sexual education but male workers none of it.

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Recognition of Safety Sign Panel for Mixed Reality Application in a Factory Layout Planning (공장 배치 계획에서 혼합현실의 적용을 위한 안전표지판 인식)

  • Lee, Jong-Hwan;Han, Soon-Hung;Cheon, Sang-Uk
    • Korean Journal of Computational Design and Engineering
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    • v.14 no.1
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    • pp.42-49
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    • 2009
  • Virtual manufacturing technology has been applied in actual production sites with the development of virtual reality technology. However, the current virtual manufacturing technology requires experts for application of the system. Furthermore, the sense of reality is diminished as the entire simulation is driven by virtual objects. In contrast, mixed reality can visualize virtual objects and an actual work place simultaneously, and thus the sense of reality of the virtual manufacturing simulation can be improved. This paper introduces a method that applies mixed reality in the manufacturing process, and proposes a method to adapt general safety sign post in the factory instead of a black square marker for visual fiducial recognition.

On the Images of Fast-food brands' identity: B.B.Q, Burger King, KFC, Lotteria, McDonald, Pizza Hut, Popeye's (패스트푸드(fast-food)브랜드 아이덴티티를 통한 이미지 연구 - KFC, 롯데리아, 맥도날드, 버거킹, B.B.Q, 파파이스, 피자헛 -)

  • 박규원;윤홍열
    • Archives of design research
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    • v.16 no.1
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    • pp.169-180
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    • 2003
  • Multinational brands have rapidly penetrated into the domestic dining business and their brands are increasingly recognized by Koreans. Considering fast-food as a kind of brand product, we attempt to investigate recognition of brands and association by images with the focus on visual identity. The economic value has been reevaluated with more attention on brand images and brand identity. The purpose of the current paper is to find out the meaning of brand association in the fast-food industry. Fast-food business has been rapidly increasing thanks to quick sonics, convenience, relatively low price, equalized quality of food and service. Most fast-food restaurants are run under franchised system. This helps enhance the recognition of brands among customers. We intend to see whether there is significant relationship between customers' preference of brands and brand images. We also aim to seek for their problems of identity in the merchandising process for brand colors. We hope to help develop Korean franchise industry by asking how association by visual Images such as colors and figures of such brands takes place.

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A Study on the valid verification of virtual space experience through the web (Web기반 공간가상체험의 유효성 검증에 관한 연구)

  • Kim, Tae-Hwan
    • Korean Institute of Interior Design Journal
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    • v.16 no.1 s.60
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    • pp.126-134
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    • 2007
  • This study researches the effectiveness of virtual experiences as an evaluation method in design. For the study, I researched the result on the spatial recognition before, abstracted visual objects and factors in recognition process and made up 43 inquiries for the evaluation through the experts group. Besides, set the analytical code between recognition factor and spatial constituents, made analysis the result from it. From April 1st to June 30th in 2004, the virtual model of educational place, college main building and city library was established as a subject of the research and studied the result. The methods that are used for the study are frequent analysis, T-test, reliability analysis, factor analysis etc. and SPSSWIN Package is used for the statistic analysis. There were two times of analysis on the evaluation to analyze the effect of virtual models on the web basis, one group evaluated the virtual building same as real and the other group evaluated the building site. Then analyzed the differences and correlation between the two. In result, college building, the first subject of study, and the second city library shows that made little differences between on the spot evaluation and virtual evaluation. Therefore, it is considered that the design evaluation with virtual model on the web basis has a vantage. But some problems founded that solved between preceding and present research through the feedback. It is as follows, 1. detection of problems that insufficience validity in the first survey. 2. found some not-validity inquiries. 3. detection of necessities that qualitative improvement and technical repletion in virtual environment.

Estimation of Perceived Curve Radius Considering Visual Distortion at Curve Sections (곡선부 시각왜곡현상을 고려한 인지곡선반경 산정에 관한 연구)

  • Shin, Jae-Man;Park, Je-Jin;Son, Sang-Ho;Ha, Tae-Jun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.30 no.4D
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    • pp.395-402
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    • 2010
  • The seriousness of a traffic accident appears relatively higher on the curve sections compared with the straight sections due to a change in speed caused by a change in the driver's sight. In particular, the visual distortion phenomenon, one of the dangerous factors taking place on the curve sections, appears different according to the road's geometric design. Although it is a genuinely principal design factor which should be necessarily considered in designing a road, the previous researches on establishing the design standards for it have been insufficiently conducted. As a result, the establishment of the road design standards for the curve sections considering the sight distortion phenomenon is desperately required. This research examined the previous researches on the driver's behaviors, the driver's sight characteristics and the perceived curve radius on the curve sections, and developed the theoretical model of perceived curve radius to which a mathematical technique is applied in consideration of the visual distortion phenomenon on the two-lane curve sections in a local area. In addition, after the theoretical visual distortion was calculated on the basis of the theoretical model of perceived curve radius, the range of error on the theoretical recognition radius model formula was verified through comparing it with the previous researches' experiential visual distortion level and analyzing both of them. As a result, it was observed that as the curve radius practically increases in the theoretical recognition curve radius, the range of error tends to go down, which reflects well the characteristics of the curve sections on the road. Based on this research, it is expected that this research will be helpful to eliminate the safety defects when designing the curve sections and contribute to develop the road design standards considering human factors in the future.

A Study of Visual Perception of the Decorations in Terms of the Principles of Forms and Backgrounds - Regarding Womens' Collections Since 2006 - (형상과 배경의 법칙에 근거한 장식의 시각적 인식에 관한 연구 - 2006년 이후 여성복 컬렉션을 중심으로 -)

  • Cha, Hye-In;Chun, Jae-Hoon
    • Journal of the Korean Society of Costume
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    • v.61 no.9
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    • pp.39-49
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    • 2011
  • The presented study was designed to investigate the attribution of the visual perception of decorating techniques that have often been witnessed in the realm of modern fashion since 2006. The form is more impressive, more suitable to convey a message and, most of all, more memorable. In this study, attempts were made to categorize and create an order of prioritization among components such as surrounding, pattern (closure), space arrangement, area, overlapping, and community (proximity) surrounding that comprise the place and arrangement of decorating techniques in modern fashion. The results were as follow: First, centered decorating technique surrounded by other techniques is prioritized. Second, the more standardized the clothing with patterns, the more it was noticed. Third, the space arrangement also had an impact on prioritization in the following order: center of the sight, horizon, vertical, and diagonal in relation to the central axis. Fourth, concentrated area attracted more attention. Fifth, when overlapped, what is placed in the front became the center of recognition. Sixth, the technique that formed a community was more recognized. Therefore, the study suggests that as the decorating technique is gaining more significance, these findings would help to find the most effective method to utilize an acute visual stimulus to apply for a technique and maximize its aesthetic effects.

Activity Data Modeling and Visualization Method for Human Life Activity Recognition (인간의 일상동작 인식을 위한 동작 데이터 모델링과 가시화 기법)

  • Choi, Jung-In;Yong, Hwan-Seung
    • Journal of Korea Multimedia Society
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    • v.15 no.8
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    • pp.1059-1066
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    • 2012
  • With the development of Smartphone, Smartphone contains diverse functions including many sensors that can describe users' state. So there has been increased studies rapidly about activity recognition and life pattern recognition with Smartphone sensors. This research suggest modeling of the activity data to classify extracted data in existing activity recognition study. Activity data is divided into two parts: Physical activity and Logical Activity. In this paper, activity data modeling is theoretical analysis. We classified the basic activity(walking, standing, sitting, lying) as physical activity and the other activities including object, target and place as logical activity. After that we suggested a method of visualizing modeling data for users. Our approach will contribute to generalize human's life by modeling activity data. Also it can contribute to visualize user's activity data for existing activity recognition study.