• Title/Summary/Keyword: Digital Restoration Technology

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A Study on Digital Displays for Digital Restoration (디지털 복원을 위한 디지털 디스플레이 전시의 형태)

  • Kim, See Eun;Choi, Seung-Won
    • The Journal of the Korea Contents Association
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    • v.21 no.11
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    • pp.145-155
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    • 2021
  • Recently because of development of technology the old cultural properties and damaged artworks are stored as digital information using digital technology and produced related contents as well as moving images or digital contents. The regenerated information and contents through digital technology conveys correct information of ancient art and helps audiences appreciate it, as well as it also stores accurate information and can be used for restoration and preservation of the work. In this study, the range of digital restoration was defined in three directions, and the exhibition of digital content with an ancillary role that can be useful the understanding of the heritage of nature and mankind using digital technology was defined as the range of digital restoration. In addition, the Ojukheon Museum in Kangneung and The Museum of Natural History in New York, which installed various digital displays to analyze and compare the types of digital display exhibitions used for digital restoration of the range, were described as examples. Through this, it was discovered that digital display exhibitions for digital restoration can effectively deliver information and stimulate participation and interest of visitors in the museums, which is able to be a positive way to preserve the heritage of nature and mankind.

Application of Three-dimensional Scanning, Haptic Modeling, and Printing Technologies for Restoring Damaged Artifacts

  • Jo, Young Hoon;Hong, Seonghyuk
    • Journal of Conservation Science
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    • v.35 no.1
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    • pp.71-80
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    • 2019
  • This study examined the applicability of digital technologies based on three-dimensional(3D) scanning, modeling, and printing to the restoration of damaged artifacts. First, 3D close-range scanning was utilized to make a high-resolution polygon mesh model of a roof-end tile with a missing part, and a 3D virtual restoration of the missing part was conducted using a haptic interface. Furthermore, the virtual restoration model was printed out with a 3D printer using the material extrusion method and a PLA filament. Then, the additive structure of the printed output with a scanning electron microscope was observed and its shape accuracy was analyzed through 3D deviation analysis. It was discovered that the 3D printing output of the missing part has high dimensional accuracy and layer thickness, thus fitting extremely well with the fracture surface of the original roof-end tile. The convergence of digital virtual restoration based on 3D scanning and 3D printing technology has helped in minimizing contact with the artifact and broadening the choice of restoration materials significantly. In the future, if the efficiency of the virtual restoration modeling process is improved and the material stability of the printed output for the purpose of restoration is sufficiently verified, the usability of 3D digital technologies in cultural heritage restoration will increase.

A Study on the 3D Digital Restoration Technology Using a Shard of a Joseon Dynasty White Porcelain Water Dropper (조선시대 백자 연적 편(片)을 활용한 3차원 디지털 복원 기술 연구)

  • Shin, Woocheol;Kim, Kyungjoong;Wi, Koangchul
    • Conservation Science in Museum
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    • v.22
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    • pp.85-96
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    • 2019
  • The restoration of ceramics excavated in fragments is limited by the difficulty of inferring the overall shape of the original object. However, recent innovations in digital technology can help to overcome the limits of conventional restoration using handwork. This study explored the potential of digital technology by digitally restoring a shard from a white porcelain water dropper excavated at a kiln site at Sindae-ri. In order to complete the digital restoration, 3D scanning was applied to obtain scan data, and 3D modeling and texture mapping were performed. In this way, three-dimensional data with patterns and color information was acquired and the original form of the water dropper could be ascertained based on the shard. The study found that the data acquired from digital restoration can be used for various purposes, including for obtaining data on cross-sections or missing portions of a relic.

Techniques for Digital Restoration of Cultural Assets : Focused on Computer Graphics and Image Processing Methods (문화원형 디지털 복원기술 : 컴퓨터 그래픽스 및 영상처리를 활용한 시스템의 통합 기능을 중심으로)

  • Moon, Ho-Seok;Sohn, Myung-Ho
    • Journal of Information Technology Services
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    • v.8 no.4
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    • pp.103-113
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    • 2009
  • The industry of cultural digital contents has been regarded as the main next generation industry. Recently techniques for restoring cultural assets and the multiple usage of those have been developed in our country. Using computer graphics and image processing techniques, many cultural assets have been restored. If the focus for researches and supports to cultural assets restoration grows rapidly, we will create cultural and economical added-values and get the benefit of that technology. In this paper, we introduce the techniques for restoring cultural assets focused on computer graphics and image processing techniques.

A study on marginal fit of the ceramic-based hybrid resin restoration for dental CAD/CAM systems (치과용 CAD/CAM 전용 세라믹기반 하이브리드 레진 수복물의 변연 적합 연구)

  • Jeong, Chang-Seop;Park, Jong-Kyoung
    • Journal of Technologic Dentistry
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    • v.42 no.3
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    • pp.228-233
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    • 2020
  • Purpose: This study aimed to assess and compare the marginal fit of ceramic-based hybrid resin restoration (HYB) and zirconia restoration (ZIR) for dental computer-aided design/computer-aided manufacturing systems. Methods: A stainless steel master model was produced. The impression was first made with silicone, and then stone working models were produced. A total of twenty restorations were fabricated with two different materials: ZIR and HYB. The silicone film thickness of the marginal gap was measured using a digital microscope; digital photos were taken at a magnification of ×160, and then analyzed using a measurement software. The values of the result were evaluated with the independent-sample t-test (α=0.05). All statistical analyses were performed with a statistical software. Results: The mean values for the marginal gap was 37.14±2.96 ㎛ for HYB, compared with 40.37±5.26 ㎛ for ZIR. No significant difference was found between ZIR and HYB (p=0.107). Conclusion: As a result, the marginal fit of the restoration fabricated using the hybrid resin was better than that of the restoration fabricated using zirconia. Also, the marginal fit of all groups was below the clinical acceptable range of 120 ㎛. Thus, HYB for dental CAD/CAM system in this study is expected to be suitable for clinical use in dentistry.

All-on-4 implant restoration with full-digital system preserving existing occlusion: A case report (완전 디지털 시스템으로 기존 교합을 보전한 All-on-4 임플란트 수복증례)

  • Kim, Kyoung Hee;Jeong, Seung-Mi;Lee, Ye Chan;An, Xue Yin;Choi, Byung-Ho
    • The Journal of Korean Academy of Prosthodontics
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    • v.56 no.4
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    • pp.330-337
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    • 2018
  • In edentulous patients, implant - supported fixed prosthesis treatment has been proved to be useful, but involves complex treatment process. On the other hand, in the modern dentistry, digital technology has been developed day by day and it has expanded its range to the implant restoration of edentulous patients. In this case, a digital system was used for all stages of diagnosis, surgery, design and fabrication of provisional implants fixed prosthesis restoration in 66-year-old mandibular edentulous patients. In the preoperative diagnosis stage, a provisional restoration was designed based on the mucosal scan using the intraoral scanner and the stable occlusion of prefabricated complete denture of the patient. After flapless implant surgery using the surgical guide, the prefabricated interim restoration was connected to the implant and used as immediate provisional restoration. The final restoration was designed and fabricated by transferring the vertical dimension and the centric relation of the provisional restoration with stable occlusion using digital technology. We report a simple protocol of implant treatment in edentulous patients by using digital techniques to preserve the patient's vertical dimension and occlusion.

A Study on the Present Condition and Prospect of Architectural Cultural Heritage Content Applied to 3D Digital Technology (3차원 디지털기술 적용 건축문화재 콘텐츠 현황분석 및 전망에 관한 연구)

  • Jung, Sung Ju;Lee, Tae Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.2
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    • pp.188-198
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    • 2021
  • Digital data was collected using modern three-dimensional digital technology. Current content-specific technologies were investigated through domestic and foreign cases so that three-dimensional digital technology could be applied to the utilization of various contents. First, the use of three-dimensional digital technology of architectural cultural assets has been changing from the restoration of cultural assets. Second, some of the contents produced were found to be underutilized. Third, the type of content has been changing in experience and exhibition, but the online approach was small. Fourth, digital restoration using domestic IT technology has been used as a technology to restore overseas cultural heritage. The fifth analysis of the relationship between the content types and 3D digital technologies shows the use of currently limited technologies. This study analyzed the status of digital architecture and the application of three-dimensional digital technologies to lay the foundation for the active development and utilization of content. Subsequent studies on various layers and digital technologies will be needed to revitalize digital architectural cultural assets in the future.

Research on Digital Restoration of Culture Archetype (문화원형의 디지털복원)

  • Lee, Chang-Soon
    • Journal of Korea Society of Industrial Information Systems
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    • v.15 no.1
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    • pp.25-36
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    • 2010
  • Recently, digitizing technologies for conservation and restoration of tangible intangible cultural properties are coming into spotlight. Because cultural properties are easy to be lost and damaged over the years, After construction of cultural assets database we can reconstruct the cultural asset making use of the reverse engineering when needed, and implement digital contents such as computer graphics, 3D virtural realization, hologram, etc. So in this paper, we scrutinize visual and technical factors occurring in different types of digital restoration of cultural properties, and present problems and improvements, and try to research technological prowess and visual mechanism.

Using 3-dimensional digital smile design in esthetic restoration of anterior teeth: A case report (3차원 Digital Smile Design을 활용한 전치부 심미수복 증례)

  • Hong, Sungman;Lee, Younghoo;Hong, Seoung-Jin;Paek, Janghyun;Noh, Kwantae;Pae, Ahran;Kim, Hyeong-Seob;Kwon, Kung-Rock
    • The Journal of Korean Academy of Prosthodontics
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    • v.59 no.4
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    • pp.451-458
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    • 2021
  • Currently, digital technology is being used in various fields of dental treatment. In particular, in the case of anterior esthetic restoration, the traditional restoration method cannot contain facial information and it is difficult for the patient to predict the treatment result. However, in the case of esthetic restoration through digital design, the visualization of the prosthesis design and the ease of reflecting patient feedback, and expecting the treatment result is available. In this case, the patient confirmed the results of restoration treatment using a digital method before treatment and obtained consent for treatment in an anterior tooth trauma patient. In addition, since the conventional digital smile design method uses only the patient's facial and smile information, the design was made on a two-dimensional plane, and its application was somewhat limited. However, in this case, a three-dimensional virtual patient was created and thus the designed restoration was viewed from various angles. Through this case, it was possible to obtain a high degree of satisfaction with the ease of communication with the patient and the technician during the esthetic restoration using the digital method, the simplicity of the procedure, and the treatment result.

Digital Restoration of Cultural Properties Based on Virtual Reality (가상현실 기술을 이용한 문화재의 디지털 복원)

  • 박소연;양종열
    • Archives of design research
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    • v.16 no.1
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    • pp.219-228
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    • 2003
  • Nowadays, the progress of high technology in modern society provides humankind with the opportunity to obtain diverse information easily and quickly. Among those rapidly progressing fields of high technology, digital media field has the ability to substitute for the multimedia information society by being applied to many related fields and daily life. Specifically, the concern and enthusiasm for the restoration of cultural property has risen. So, effective methods are required to decide on the preservation, restoration and academic value of cultural property. Among these, image processing technology using computers has been introduced. The restoration of cultural property using this technique has been studied vigorously in many advanced countries because this would allow us to restore damaged parts without destroying the original asset. However, in Korea, though we have numerous examples of cultural property with recorded history, research related to the items has scarcely been conducted. Accordingly, this study focuses on the investigation of virtual reality and the techniques applicable to restoring cultural property in addition to suggesting the significance and possibility of digitally restoring cultural property following the introduction of applicable examples both domestically and abroad.

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