• 제목/요약/키워드: image understanding

검색결과 1,075건 처리시간 0.025초

The Impact of Video Quality and Image Size on the Effectiveness of Online Video Advertising on YouTube

  • Moon, Jang Ho
    • International Journal of Contents
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    • 제10권4호
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    • pp.23-29
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    • 2014
  • Online video advertising is now an increasingly important tool for marketers to reach and connect with their consumers. The purpose of this study was to empirically investigate the impact of video format on online video advertising. More specifically, this study aimed to explore whether online video quality and image size influences viewer responses toward online video advertising. By conducting an experimental study on YouTube, the results suggested that enhanced video quality of online advertising may have an important impact on effectiveness of the advertising, and the concept of presence is a key to understanding the effects of enhanced video quality in online advertising.

A Deep Learning Approach for Classification of Cloud Image Patches on Small Datasets

  • Phung, Van Hiep;Rhee, Eun Joo
    • Journal of information and communication convergence engineering
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    • 제16권3호
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    • pp.173-178
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    • 2018
  • Accurate classification of cloud images is a challenging task. Almost all the existing methods rely on hand-crafted feature extraction. Their limitation is low discriminative power. In the recent years, deep learning with convolution neural networks (CNNs), which can auto extract features, has achieved promising results in many computer vision and image understanding fields. However, deep learning approaches usually need large datasets. This paper proposes a deep learning approach for classification of cloud image patches on small datasets. First, we design a suitable deep learning model for small datasets using a CNN, and then we apply data augmentation and dropout regularization techniques to increase the generalization of the model. The experiments for the proposed approach were performed on SWIMCAT small dataset with k-fold cross-validation. The experimental results demonstrated perfect classification accuracy for most classes on every fold, and confirmed both the high accuracy and the robustness of the proposed model.

한.중 고객의 서비스 점포에 관한 만족과 충성도에 관한 실증적 연구 (A Empirical Study on the Satisfaction and Loyalty on the Service Store of Korean and Chinese Customer)

  • 박상선;진재성
    • 통상정보연구
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    • 제10권2호
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    • pp.433-453
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    • 2008
  • Customer satisfaction and loyalty are becoming an increasing salient topic in many firms and in academic research. This study places significance in establishing corporate marketing strategy via analyzing and understanding purchasing by Korean and Chinese customer, especially those for service store, who serve as the core in marketing activities. To objectives of this study are to investigate which antecedent variables have significant effects on consumer perceived satisfaction or loyalty and to examine whether these factors have differences between Korean and Chinese customer. To test the hypotheses, such antecedent variables as the product quality, service quality, store reputation, store image. All variables are significant factors in both Korean and Chinese customer. Under the current increasingly rapid competitive market, product/service quality, store reputation/image can provide customer satisfaction and loyalty, can generate continual customer expansion of current customer through the reuse intention and can contribute to the expansion of new customers.

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Image-guided surgery and craniofacial applications: mastering the unseen

  • Wang, James C.;Nagy, Laszlo;Demke, Joshua C.
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제37권
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    • pp.43.1-43.5
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    • 2015
  • Image-guided surgery potentially enhances intraoperative safety and outcomes in a variety of craniomaxillofacial procedures. We explore the efficiency of one intraoperative navigation system in a single complex craniofacial case, review the initial and recurring costs, and estimate the added cost (e.g., additional setup time, registration). We discuss the potential challenges and benefits of utilizing image-guided surgery in our specific case and its benefits in terms of educational and teaching purposes and compare this with traditional osteotomies that rely on a surgeon's thorough understanding of anatomy coupled with tactile feedback to blindly guide the osteotome during surgery. A 13-year-old presented with untreated syndromic multi-suture synostosis, brachycephaly, severe exorbitism, and midface hypoplasia. For now, initial costs are high, recurring costs are relatively low, and there are perceived benefits of imaged-guided surgery as an excellent teaching tool for visualizing difficult and often unseen anatomy through computerized software and multi-planar real-time images.

화상처리기법을 이용한 판재의 변형률 측정(II) (Measurement of Strain of Sheet Metal by Image Processing (II))

  • 정재윤;황창원;허만성;김낙수
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 1997년도 추계학술대회논문집
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    • pp.147-152
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    • 1997
  • This paper presents a method for measuring and analyzing strains in sheet metal forming by stereo vision system. A better understanding and evaluation of the formability can be achieved by analyzing stain distribution in deformed sheet metals. By means of image processing technique, it is possible to get strain distribution efficiently. For measuring strain automatically and accurately, algorithms for camera calibration, grid detection, stereo matching and strain analysis has been developed and verified by experiments with GUI(Graphic User Interface).

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외식기업 브랜드 자산 구성 요인간의 관계 연구 (Relationships among Brand Equity Components)

  • 김영훈;조용범
    • 한국조리학회지
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    • 제14권2호
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    • pp.128-137
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    • 2008
  • The importance of brand and brand equity has greatly increased not only in the professional perspectives but also in academic viewpoints. Especially, lots of related studies have been focused on the components of brand equity itself. However, this study concentrates on the relationships of brand equity components for understanding consumers' attitudes toward the brands of the food-service businesses. The basic research model consists of 4 brand equity components: brand awareness, perceived quality, brand image, and brand preference. Research data are gathered through survey questions responded by university students. For statistical analysis, correlation analysis, factor analysis, and covariance structure analysis are carried out. The result of this study are summed up as follows. Among the brand equity components, brand awareness had a great effect on perceived quality(path coefficient; 0.476). Brand image highly influenced brand preference(path coefficient; 0.439).

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교차 시각 스테레오 카메라 모델 해석 (Analysis of convergent looking stereo camera model)

  • 이적식
    • 전자공학회논문지B
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    • 제33B권10호
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    • pp.50-62
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    • 1996
  • A parallel looking stereo camera was mainly used as an input sensor for digital image processing, image understanding and the extraction of 3 dimensional information. Theoretical analysis and performance evaluation are dealt in this paper for a convergent looking stereo camera model having a fixation point with the result of crossing optical axes. The quantization error, depth resolution and equidepth map due to digital pixels, and the misalignments effects of pan, tilt and roll angles are analyzed by using rhe relationship between the reference and image coordinate systems. Also horopter, epipolar lines, probability density functions of the depth error, and stereo fusion areas for the two camera models are discussed.

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생활양식에 따른 실내디자인 선호유형 (The Type of Preference of Interior Design according to the Life Style)

  • 박혜숙;윤정숙
    • 한국실내디자인학회논문집
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    • 제27호
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    • pp.64-75
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    • 2001
  • As living condition has improved, agreeable living environmental plans that reflect residential traits are needed from. the first stage of house remodeling or interior construction. At the request of above, we need systematically study about the householder's preference according to the life style. The purpose of this study is to suggest the case of preferred interior by understanding preferred Interior image and interior design elements. Document and questionnaire research are used as the method of study. The subjects of research wear 702 persons from 20th to 40th. Contents are constituted with general traits, life style and preferred interior image and the analysis of the materials is quantifical analysis using statistics. In the base of the theory of interior image and interior design elements appeared In the documents, measuring apparatus is made up and suggested preferred examples of interior design depend on life style by combining preferences.

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감시용 로봇의 시각을 위한 인공 신경망 기반 겹친 사람의 구분 (Dividing Occluded Humans Based on an Artificial Neural Network for the Vision of a Surveillance Robot)

  • 도용태
    • 제어로봇시스템학회논문지
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    • 제15권5호
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    • pp.505-510
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    • 2009
  • In recent years the space where a robot works has been expanding to the human space unlike traditional industrial robots that work only at fixed positions apart from humans. A human in the recent situation may be the owner of a robot or the target in a robotic application. This paper deals with the latter case; when a robot vision system is employed to monitor humans for a surveillance application, each person in a scene needs to be identified. Humans, however, often move together, and occlusions between them occur frequently. Although this problem has not been seriously tackled in relevant literature, it brings difficulty into later image analysis steps such as tracking and scene understanding. In this paper, a probabilistic neural network is employed to learn the patterns of the best dividing position along the top pixels of an image region of partly occlude people. As this method uses only shape information from an image, it is simple and can be implemented in real time.

Microfluidic Image Cytometry (μFIC) Assessments of Silver Nanoparticle Cytotoxicity

  • Park, Jonghoon;Yoon, Tae Hyun
    • Bulletin of the Korean Chemical Society
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    • 제33권12호
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    • pp.4023-4027
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    • 2012
  • Cytotoxicity assessment of silver nanoparticles (AgNPs) was performed using MTT-based microfluidic image cytometry (${\mu}FIC$). The $LC_{50}$ value of HeLa cells exposed to AgNPs in the microfluidic device was estimated as 46.7 mg/L, which is similar to that estimated by MTT-based IC for cells cultured in a 96 well plate (49.9 mg/L). These results confirm that the ${\mu}FIC$ approach can produce cytotoxicity data that is reasonably well-matched with that of the conventional 96 well plate system with much higher efficiency. This ${\mu}FIC$ method provides many benefits including ease of use and low cost, and is a more rapid in vitro cell based assay for AgNPs. This may aid in speeding up data acquisition in the field of nanosafety and make a significant contribution to the quantitative understanding of nanoproperty-toxicity relationships.