• 한국치위생학회지
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• 제22권6호
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• pp.467-475
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• 2022

Objectives: This study aimed to understand the definitions, types, and principles of computer-aided design/computer-aided manufacturing (CAD/CAM) and scanners due to the introduction of digital workflows. Methods: This study was based on information from the government's law and articles published in academic journals. Results: CAD/CAM is a technology that measures the shape three-dimensionally, saves it as data, designs it into the desired shape, and processes the product. Scanners, which are classified as intraoral and extraoral scanners, measure teeth and the intraoral environment three-dimensionally and convert them into three-dimensional (3D). A 3D printer is a machine that creates a 3D object by layering materials based on a 3D drawing. It can be classified into four types according to the method: extrusion, powder bonding, lamination, and photopolymerization methods. The most used 3D printer methods in dentistry are stereolithograhpy and digital light processing, and they are widely used in prosthetic, surgical, and orthodontic fields. Conclusions: As the dental system is digitized, it is expected that the government will classify the dental hygienist scope of work and the universities will reflect the curriculum; it is necessary to develop excellent dental hygienists, diversify the educational pathways, and establish policies to meet the needs of the increasing number of patients.

• 디지털융복합연구
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• 제13권1호
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• pp.249-255
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• 2015

최근 증강현실에 대한 관심이 증가하면서 최신 증가현실 기술을 이용한 다양한 응용 프로그램들이 연구 및 개발되어지고 있다. 특히 고객의 취향에 맞는 다양한 헤어스타일을 실시간으로 체험해볼 수 있는 헤어스타일 시뮬레이터에 대한 연구들이 오랫동안 진행되어져 왔으며 서비스를 진행하고 있는 업체도 있다. 그러나 현재 서비스되고 있는 제품들은 증강현실 기술을 적용하지 않은 2D 헤어스타일 시뮬레이터가 대부분이고, 증강현실 기술이 적용된 3D 헤어스타일 시뮬레이터일지라도 NUI의 기능이 미흡한 상태이다. 그러므로 본 논문에서는 증강현실 기술의 핵심인 NUI와 EHCI 기반의 3D 헤어스타일 시뮬레이터를 개발한다. 그리고 10명의 사용자로 하여금 체험하게 하고 3D 헤어스타일 시뮬레이터의 효율성을 검증한다.

• 사물인터넷융복합논문지
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• 제9권1호
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• pp.89-95
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• 2023

2007년 1월 국방부 유해발굴감식단이 창설되어 본격적인 유해발굴이 추진되었다. 현재 발굴 범위는 한국전쟁 당시 치열한 전투가 벌어진 비무장지대 내의 화살머리고지까지 확장되어 진행되고 있다. 백마고지에서는 많은 유해 및 유류품이 발굴되고 있다. 대부분 파손된 상태여서 정확한 형태를 복원하기는 어렵다. 이에 본 연구에서는 3D 스캔과 3D 모델링을 통해 발굴된 유류품의 원형을 복원하고자 한다. 이러한 디지털 복원 방식은 그동안 수작업 방식의 단점을 보완하는 원형 복원의 대안이 될 수 있다. 현재 문화유산 분야에서는 3D 기술을 사용한 각종 디지털 복원이 활발하다. 디지털 복원이 된 자료는 디지털 헤리티지의 기초자료로 활용될 수 있다. 이를 토대로 다양한 유해발굴 및 호국보훈 관련 콘텐츠의 개발이 이루어질 수 있을 것이다. 더 나아가 발굴된 유해에 대한 디지털 휴먼 복원이 이루어진다면 전사자들의 생전 모습을 재현할 수 있을 것이다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권1호
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• pp.74-89
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• 2021

For higher-level requirements of urban planning and management and the recent development of "digital earth" and "digital city", it is urgent to establish protocols for the construction of three-dimensional digital city models. However, some problems still exist in the digital technology of the three-dimensional city model, such as insufficient precision of the three-dimensional model, not optimizing the scene and not considering the constraints of building codes. In view of those points, a method to interactively simulate a virtual city scene based on building codes is proposed in this paper. Firstly, some constraint functions are set up to restrict the models to adhere to the building codes, and an improved directional bounding box technique is utilized to solve the problem that geometric objects may intersect in a virtual city scene. The three-dimensional model invocation strategy is designed to convert two-dimensional layouts to a three-dimensional urban scene. A Leap Motion hardware device is used to interactively place the 3D models in a virtual scene. Finally, the design and construction of the three-dimensional scene are completed by using Unity3D. The experiment shows that this method can simulate urban virtual scenes that strictly adhere to building codes in a virtual scene of the city environment, but also provide information and decision-making functions for urban planning and management.

• Journal of information and communication convergence engineering
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• 제11권4호
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• pp.282-287
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• 2013

A real-time digital holographic display is the core technology for the next-generation 3DTV. Holographic display requires a considerably large amount of calculation. If generating a large number of digital holograms is intended, the amount of calculation and the time required increase exponentially. This is a significant obstacle in a real-time hologram service. This paper proposes an algorithm that increases the speed of generating a Fresnel hologram by using a recursive addition operation covering the entire coordinate array of a digital hologram. The 3D object designed to calculate the digital hologram uses a depth-map image produced by computer graphics. The proposed algorithm is a technique that performs the computer-generated holography (CGH) operation with only recursive addition of all of the hologram's coordinates by analyzing the regularity between the 3D object and the digital hologram coordinates. The experimental results show that the proposed algorithm increases the operation speed by 70% over the technique using the conventional CGH equation and by more than 30% over the previously proposed recursive technique.

• International journal of advanced smart convergence
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• 제13권2호
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• pp.148-153
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• 2024

This article embarks on an exploration of how the burgeoning landscape of AI technology is reshaping and augmenting creative expression within the realm of 3D animation. As AI continues to evolve and mature, its integration into the process of 3D animation creation has become an increasingly focal point of investigation and analysis. The article undertakes a comprehensive examination of the myriad applications of AI within the domain of 3D animation, shedding light on its multifaceted contributions to various aspects of the creative process. Furthermore, it delves into the transformative impact that AI technology has on enhancing creative expression within 3D animation, particularly through increased productivity, personalized content creation, and the expansion of creative boundaries. By automating repetitive and time-consuming tasks inherent in traditional production methods, AI liberates artists and animators to unleash their creative ingenuity and push the boundaries of their craft. Through empirical research and case studies, the article elucidates how AI serves as a catalyst for innovation, fostering a conducive environment for the exploration of novel techniques and artistic styles.

• 한국멀티미디어학회논문지
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• 제16권4호
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• pp.529-537
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• 2013

의류 패션산업에서 IT화가 진행되고 있으며 그 중 패션쇼는 디지털 시대의 흐름에 발맞추어 빠르게 변화하고 있다. 본 연구에서는 가상의상을 제작하여 실제의상과 유사하게 재현이 가능한지를 살펴보고, 이를 통하여 디지털 패션쇼를 구현한다. 이때 기존의 패션쇼 보다 아이디어를 창의적으로 표현 할 수 있는지, 효율성 및 보완해야 할 부분은 무엇인지 등 실제 사례 개발 연구를 통해 제시하였다. 그 결과 가상 의상은 매우 유사하다는 평을 받았으며, 실제 패션쇼에서는 재현하기 어려운 연출이 본 연구를 통해 보다 창의적이고 용이한 방법으로 실현 가능하였다. 미래에 3D 가상의상을 실제 패션산업에 도입한다면 유통 및 산업의 혁신을 통해 새로운 콘텐츠 창출이 가능할 것이다.

• 패션비즈니스
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• 제28권3호
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• pp.122-139
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• 2024

Image-generated AI is rapidly emerging as a powerful tool to augment human creativity and transform the art and design process through deep learning capabilities. The purpose of this study was to propose and demonstrate the feasibility of a new design development method that combined traditional design methods and technology by constructing image-generated AI prompts based on artists' formative elements. The study methodology consisted of analyzing Kazmir Malevich's theoretical considerations and applying them to AI prompts for design, print pattern development, and 3D digital design. This study found that the suprematist works of Kazmir Malevich were suitable as design and print pattern prompts due to their clear geometric shapes, colors, and spatial arrangement. The AI-prompted designs and print patterns produced diverse results quickly and enabled an efficient design process compared to traditional methods, although additional refinement was required to perfect the details. The AI-generated designs were successfully produced as 3D garments, thereby demonstrating that AI technology could significantly contribute to fashion design through its integration with artistic principles. This study has academic significance in that it proposes a prompt composition method applicable to fashion design by combining AI and artistic elements. It also has industrial significance in that it contributes to design innovation and the implementation of creative ideas by presenting an AI-based design process that can be practically applied.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 B
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• pp.684-686
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• 2003

Until recently, the 2-D FEA neglects the magnetic field fringing and end-leakage, it leads to the approach of a trial and error experimental design. Since 3-D FEA is investigated for exact side force analysis of Linear Motor for Linear compressor. For the 3-B FEA, ANSYS as commercial tool are used.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제39권
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• pp.10.1-10.5
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• 2017

Background: Because of changing surgical procedures in the fields of oral and maxillofacial surgery, new methods for surgical education are needed and could include recent advances in digital technology. Many doctors have attempted to use digital technology as educational tools for surgical training, and movies have played an important role in these attempts. We have been using a 3D full high-definition (full-HD) camcorder to record movies of intraoral surgeries. Method: The subjects were medical students and doctors receiving surgical training who did not have actual surgical experience (n = 67). Participants watched an 8-min, 2D movie of orthognathic surgery and subsequently watched the 3D version. After watching the 3D movie, participants were asked to complete a questionnaire. Result: A lot of participants (84%) felt a 3D movie excellent or good and answered that the advantages of a 3D movie were their appearance of solidity or realism. Almost all participants (99%) answered that 3D movies were quite useful or useful for medical practice. Conclusions: Three-dimensional full-HD movies have the potential to improve the quality of medical education and clinical practice in oral and maxillofacial surgery.