• Title/Summary/Keyword: Construction Image

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Automatic Recognition of Direction Information in Road Sign Image Using OpenCV (OpenCV를 이용한 도로표지 영상에서의 방향정보 자동인식)

  • Kim, Gihong;Chong, Kyusoo;Youn, Junhee
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.31 no.4
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    • pp.293-300
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    • 2013
  • Road signs are important infrastructures for safe and smooth traffic by providing useful information to drivers. It is necessary to establish road sign DB for managing road signs systematically. To provide such DB, manually detection and recognition from imagery can be done. However, it is time and cost consuming. In this study, we proposed algorithms for automatic recognition of direction information in road sign image. Also we developed algorithm code using OpenCV library, and applied it to road sign image. To automatically detect and recognize direction information, we developed program which is composed of various modules such as image enhancement, image binarization, arrow region extraction, interesting point extraction, and template image matching. As a result, we can confirm the possibility of automatic recognition of direction information in road sign image.

A Study on the Improvement of Prevention of Leaving Other Occupations by Age of Construction Worker (국내 건설기능인력 연령별 타 직업 이탈방지 개선방안)

  • Kim, Seong-Ho;Lee, Jun-Yong;Son, Chang-Baek
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.30-31
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    • 2021
  • The construction industry is an industry in which skilled construction workers should be secured and trained because of the quality and productivity of buildings, but the negative image makes it difficult to supply and demand skilled construction workers. In response, this study derived the factors influencing the intention of transferring construction workers to other occupations and investigated ways to improve the prevention of leaving other occupations by age of construction workers. The factors influencing the turnover of construction workers have also been derived, and work overload, salary, workplace stability, and employment competitiveness have a significant impact on the intention of new employees to change jobs. According to a survey on ways to improve the prevention of leaving other jobs, those in their 20s and 30s are "improving working conditions, such as providing holidays, paying overtime, compliance with working hours," and those in their 50s and 60s.

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The Surface Information Acquisition of Rock Slope using 3D Digital Image (3차원 수치영상을 이용한 암반사면의 지표정보 획득)

  • 엄대용;강준묵
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.04a
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    • pp.203-208
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    • 2004
  • Recently, digital image is increasing greatly practical use degree in several industry fields including construction. And interest about 3D digital image that can express practical object realistically is augmented greatly. In this study, developed 3D digital image generation system based on digital photogrammetry and created 3D digital image for object. And, wished to verify of 3D digital image through comparative analysis with processing result by digital photogrammetry system been using much the latest for acquisition of 3D information. Also, wished to apply to surface information acquisition about rock slope and execute investigation about discontinuity of joint etc. As the result, could created 3D digital image for object using the 3D digital image generation system developing in this study, and acquire surface information about rock slope efficiently.

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Integration of Text and Image Information of Interior Design (실내디자인의 문자 정보와 이미지 정보의 통합화에 관한 연구)

  • 이현수;정선영;오수영;고경진
    • Korean Institute of Interior Design Journal
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    • no.26
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    • pp.88-94
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    • 2001
  • This paper explores idea of the integration of text and image information in interior design. In this paper, we designed a structure of text and image information. Text information includes the information about materials and projects, and image information includes images of interior design. Material information consists of such as name and price of materials. Image information involves images of interior design that have been scanned and categorized into 15 groups according to the building regulation. Project information consists of construction brief and materials relevant to the image of interior design. The interior design information that is based on cases offers various information to designer and customers. In addition, the connection between text information and image information improves the quality of interior design by decreasing the trial and error in interior design processes. Finally, we discuss the method that integrates text and image information of interior design.

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A Study on the Intergrated Images in Exterior and Interior Design According to the Apartments Brand (아파트 브랜드에 따른 외관 및 실내디자인 이미지 통합에 관한 연구)

  • Shen, Mei-Yu;Kim, Nam-Hyo
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2008.05a
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    • pp.139-143
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    • 2008
  • The brand power is getting more important in apartment market so that consumers are accustomed to ask first what the apartment brand is when they are considering to buy an apartment. Even so the brand name is the first factor which approaches to the consumer, message and image can be delivered to customers by visual factors. Since visual image can be effective to remind of customers brand image, construction business company should make portfolio to synthesize brand Image actively. This research investigate images of consistency in extenor and interior design according to the apartments brand. Used lexical meaning of the adjective used to discern standard to extract images, selected survey, and evaluated by step 1 to 5 using semantic differential method, SD. The collected cases are analyzed by using statistics software SPSS for windows release 11.0. This research provides conveyance of the vision image which fits to the brand Image and further design direction.

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USING WEB CAMERA TECHNOLOGY TO MONITOR STEEL CONSTRUCTION

  • Kerry T. Slattery;Amit Kharbanda
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.841-844
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    • 2005
  • Computer vision technology can be used to interpret the images captured by web cameras installed on construction sites to automatically quantify the results. This information can be used for quality control, productivity measurement and to direct construction. Steel frame construction is particularly well suited for automatic monitoring as all structural members can be viewed from a small number of camera locations, and three-dimensional computer models of steel structures are frequently available in a standard electronic format. A system is being developed that interprets the 3-D model and directs a camera to look for individual members as regular intervals to determine when each is in place and report the results. Results from a simple lab-scale system are presented along with preliminary full-scale development.

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Large Multimodal Model for Context-aware Construction Safety Monitoring

  • Taegeon Kim;Seokhwan Kim;Minkyu Koo;Minwoo Jeong;Hongjo Kim
    • International conference on construction engineering and project management
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    • 2024.07a
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    • pp.415-422
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    • 2024
  • Recent advances in construction automation have led to increased use of deep learning-based computer vision technology for construction monitoring. However, monitoring systems based on supervised learning struggle with recognizing complex risk factors in construction environments, highlighting the need for adaptable solutions. Large multimodal models, pretrained on extensive image-text datasets, present a promising solution with their capability to recognize diverse objects and extract semantic information. This paper proposes a methodology that generates training data for multimodal models, including safety-centric descriptions using GPT-4V, and fine-tunes the LLaVA model using the LoRA method. Experimental results from seven construction site hazard scenarios show that the fine-tuned model accurately assesses safety status in images. These findings underscore the proposed approach's effectiveness in enhancing construction site safety monitoring and illustrate the potential of large multimodal models to tackle domain-specific challenges.

Design Analysis of Hydraulic Excavator since 1990 (1990년대 유압굴삭기 조형 분석에 관한 연구)

  • 윤진필;문무경
    • Archives of design research
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    • v.13 no.4
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    • pp.233-242
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    • 2000
  • The traditional image of hydraulic excavator started to change in two ways since 1990. First, post-heavy equipment's visual image was new waves to traditional image of heavy, strong, and wild. They are the negative aspect that excavators have. Another movement of getting rid of its negative image can be found in late-heavy equipment, which was intended to adapt traditional and positive, but off negative images. In 1990s, the design trend is moving from warm/hard to warm/soft, and KOBELCO can be exceptional example that went even further, gone up to cool-soft image. KOBELCO specially aimed 'post- excavator image' strategy, which has been successful. Image of cabin as a human space changed little bit further than outside image. Each company tried to differentiate the design of cabin focusing on its safety. Following paragraphs show specific trend of image change in form, colour, texture, and the composition. Major visual image change in form tries to follow the image of cars and home appliances which are showing the movement from tough and hard image to soft one. Structural change on local image shows the movement from angular edge to edgeless and the movement of cabin's pillar C placed to back of the equipment with gentle inclination. All of these movements are the result of effort to improve traditional excavator's negative image, that top structure is assembled separately, to positive ones. Today's tendency about its color becomes important to apply two different colour styles. Each style has brightness and tone comparison. As an enormous power convey system, it was in common that its brightness comparison was useful because of the alarm of its damage possibility. However, as its colour control and its design have been emphasized gradually, the tone comparison takes a part in an important role, too. As an example, there is an occasion that these comparisons are compromised simultaneously. In the respect of its image creation, its texture treatments make the tendency of being the same as passenger cars. It is caused from its development of the manufacture techniques of from the fabrication method in small business to the press method in big firm. Further, it is also because of its improvement of painting & coating skills. It may prohibit the reflection effect from solar rays. In the point of view of its visual images, it is recognized the prominent tendency that its composition has been gradually decreased. Lots of windows and the frames tends dark-colour as a whole. It is more preferred to have one colour image, but except KOBELCO and HITACHI. As well, there is another high-tendency to improve its standard treatments, especially for its corner and texture treatments.

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History Management Technology of Building Construction and Maintenance Using Vector Photo Information and BIM (벡터사진 정보와 BIM을 활용한 건축물의 시공·유지관리 이력관리기술)

  • Kim, Kyoon-Tai;Lim, Myung-Gu;Kim, Gu-Taek
    • Journal of the Korea Institute of Building Construction
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    • v.14 no.6
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    • pp.605-613
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    • 2014
  • Recently proposed intelligent images are generating, storing and managing along with existing image information and 5W1H information. Therefore, these vector images can be useful in searching and managing photos taking during building construction and maintenance processes. In addition, when the vector photos, a key to the intelligent image, is linked with BIM, it is possible to find BIM objects by utilizing information included in vector photos. And if the taken vector photo is saved as attributes of the extracted object, the vector photo can be managed as the historical data. Furthermore, this new technology will contribute to make the management of construction information more efficiently. This study is about the development of the technology of extracting BIM objects from vector photo information and managing the attributes of the extracted objects. Also the prototype modules was developed and tested to evaluate the processes of setting reference points, converting coordinate system, calculating positions, and so on. Through these processes, it was confirmed that the possibility of extracting BIM objects from vector photos and of managing attribute data of objects.