• Title/Summary/Keyword: Image Integration

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Automated texture mapping for 3D modeling of objects with complex shapes --- a case study of archaeological ruins

  • Fujiwara, Hidetomo;Nakagawa, Masafumi;Shibasaki, Ryosuke
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1177-1179
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    • 2003
  • Recently, the ground-based laser profiler is used for acquisition of 3D spatial information of a rchaeological objects. However, it is very difficult to measure complicated objects, because of a relatively low-resolution. On the other hand, texture mapping can be a solution to complement the low resolution, and to generate 3D model with higher fidelity. But, a huge cost is required for the construction of textured 3D model, because huge labor is demanded, and the work depends on editor's experiences and skills . Moreover, the accuracy of data would be lost during the editing works. In this research, using the laser profiler and a non-calibrated digital camera, a method is proposed for the automatic generation of 3D model by integrating these data. At first, region segmentation is applied to laser range data to extract geometric features of an object in the laser range data. Various information such as normal vectors of planes, distances from a sensor and a sun-direction are used in this processing. Next, an image segmentation is also applied to the digital camera images, which include the same object. Then, geometrical relations are determined by corresponding the features extracted in the laser range data and digital camera’ images. By projecting digital camera image onto the surface data reconstructed from laser range image, the 3D texture model was generated automatically.

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A FREQUENCY DOMAIN RAW SIGNAL SIMULATOR FOR SAR

  • Kwak Sunghee;Kim Moon-Gyu;Shin Dongseok;Shin Jae-Min
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.530-533
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    • 2005
  • A raw signal simulator for synthetic aperture radar (SAR) is a useful tool for the design and implementation of SAR system. Also, in order to analyze and verify the developed SAR processor, the raw signal simulator is required. Moreover, there is the need for a test system to help designing new SAR sensors and mission of SAR system. The derived parameters of the SAR simulator also help to generate accurate SAR processing algorithms. Although the ultimate purpose of this research is to presents a general purpose SAR simulator, this paper presents a SAR simulator in frequency domain at the first step. The proposed simulator generates the raw signal by changing various simulation parameters such as antenna parameters, modulation parameters, and sampling parameters. It also uses the statistics from an actual SAR image to imitate actual physical scattering. This paper introduces the procedures and parameters of the simulator, and presents the simulation results. Experiments have been conducted by comparing the simulated raw data with original raw SAR image. In addition, the simulated raw data have been verified through commercial SAR processing software.

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A Study on the Development Strategy of Jeju Marine Leisure Equipment Industry (제주도 해양레저장비산업 육성 방안에 대한 고찰)

  • Lee, Young-Jin;Song, Young-Min
    • Journal of Fisheries and Marine Sciences Education
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    • v.24 no.2
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    • pp.286-301
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    • 2012
  • This study was to consider the development strategy of Jeju Marine leisure equipment industry for facilitating marine leisure tourism industry. For achieving this goal, the case studies related to domestic & foreign marine leisure equipment industry, interviews of marine leisure equipment company, the contents of specialist consultation meeting were used in this study. The strategies for promoting were suggested in progress that step 1 was the expansion of maintenance infrastructure as of a port of call, step 2 was the establishing of marie leisure tourism image, step 3 was the integration of marine leisure equipment industry. More specific suggestions were followed. As an aspect of infrastructure, the expansion of management of marine leisure equipment such as yacht, development of marina having similar image of Jeju were suggested. As an aspect of law/institution, the development of financial support system on the marine leisure equipment, promotion of establishment of professional education institutions were suggested. As an aspect of contents/programs, the hosting the exhibition of marine leisure used equipment of international trade, the development of environmental-friendly program associated with cruise were suggested, Finally, as an aspect of promotion/marketing, the promotions linked with drama & movie industry, the strategy of improvement of negative image to the yacht industry were suggested.

Information System for Multi-scale Urban Landscape using Internet Image Map (인터넷 영상지도를 활용한 축척별 도시경관 정보시스템)

  • Um, Jung-Sup;Choi, Ja-Hyun
    • Journal of Environmental Impact Assessment
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    • v.11 no.4
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    • pp.289-309
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    • 2002
  • Solutions of many landscape problems depend on area-wide assessment and interpretation of spatial and physical characteristics over the study area. The authors argue that the public awareness for an area-wide urban landscape appears to be very low due to limited chance to the information. Acknowledging these constraints, an operational, user-friendly information system has been developed by combining internet technology with GIS. In particular, integration among satellite data and digital maps takes advantage of each component, and enables the landscape structure to be visualized, interacted with and deployed all on the Web. The 1m resolution IKONOS data realistically identified the major type of landscape by large scale spatial precision while TM data revealed successfully the major parameters that influence an area-wide spatial structure in the study area. This system would play a crucial role in improving the public awareness for area-wide landscape information if it is operationally introduced into the Government since the highly user-friendly interface based on image maps provides a completely new means for disseminating information for area-wide landscape in a visual and interactive manner to the general public.

XCRAB : A Content and Annotation-based Multimedia Indexing and Retrieval System (XCRAB :내용 및 주석 기반의 멀티미디어 인덱싱과 검색 시스템)

  • Lee, Soo-Chelo;Rho, Seung-Min;Hwang, Een-Jun
    • The KIPS Transactions:PartB
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    • v.11B no.5
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    • pp.587-596
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    • 2004
  • During recent years, a new framework, which aims to bring a unified and global approach in indexing, browsing and querying various digital multimedia data such as audio, video and image has been developed. This new system partitions each media stream into smaller units based on actual physical events. These physical events within oath media stream can then be effectively indexed for retrieval. In this paper, we present a new approach that exploits audio, image and video features to segment and analyze the audio-visual data. Integration of audio and visual analysis can overcome the weakness of previous approach that was based on the image or video analysis only. We Implement a web-based multi media data retrieval system called XCRAB and report on its experiment result.

Automatic Building Reconstruction with Satellite Images and Digital Maps

  • Lee, Dong-Cheon;Yom, Jae-Hong;Shin, Sung-Woong;Oh, Jae-Hong;Park, Ki-Surk
    • ETRI Journal
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    • v.33 no.4
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    • pp.537-546
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    • 2011
  • This paper introduces an automated method for building height recovery through the integration of high-resolution satellite images and digital vector maps. A cross-correlation matching method along the vertical line locus on the Ikonos images was deployed to recover building heights. The rational function models composed of rational polynomial coefficients were utilized to create a stereopair of the epipolar resampled Ikonos images. Building footprints from the digital maps were used for locating the vertical guideline along the building edges. The digital terrain model (DTM) was generated from the contour layer in the digital maps. The terrain height derived from the DTM at each foot of the buildings was used as the starting location for image matching. At a preset incremental value of height along the vertical guidelines derived from vertical line loci, an evaluation process that is based on the cross-correlation matching of the images was carried out to test if the top of the building has reached where maximum correlation occurs. The accuracy of the reconstructed buildings was evaluated by the comparison with manually digitized 3D building data derived from aerial photographs.

Integrated SIFT Algorithm with Feature Point Matching Filter for Relative Position Estimation (특징점 정합 필터 결합 SIFT를 이용한 상대 위치 추정)

  • Gwak, Min-Gyu;Sung, Sang-Kyung;Yun, Suk-Chang;Won, Dae-Hee;Lee, Young-Jae
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.37 no.8
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    • pp.759-766
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    • 2009
  • The purpose of this paper is an image processing algorithm development as a base research achieving performance enhancement of integrated navigation system. We used the SIFT (Scale Invariant Feature Transform) algorithm for image processing, and developed feature point matching filter for rejecting mismatched points. By applying the proposed algorithm, it is obtained better result than other methods of parameter tuning and KLT based feature point tracking. For further study, integration with INS and algorithm optimization for the real-time implementation are under investigation.

Fusion of DEMs Generated from Optical and SAR Sensor

  • Jin, Kveong-Hyeok;Yeu, Yeon;Hong, Jae-Min;Yoon, Chang-Rak;Yeu, Bock-Mo
    • Journal of Korean Society for Geospatial Information Science
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    • v.10 no.5 s.23
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    • pp.53-65
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    • 2002
  • The most widespread techniques for DEM generation are stereoscopy for optical sensor images and SAR interferometry(InSAR) for SAR images. These techniques suffer from certain sensor and processing limitations, which can be overcome by the synergetic use of both sensors and DEMs respectively. This study is associated with improvements of accuracy with consistency of image's characteristics between two different DEMs coming from stereoscopy for the optical images and interferometry for SAR images. The MWD(Multiresolution Wavelet Decomposition) and HPF(High-Pass Filtering), which take advantage of the complementary properties of SAR and stereo optical DEMs, will be applied for the fusion process. DEM fusion is tested with two sets of SPOT and ERS-l/-2 satellite imagery and for the analysis of results, DEM generated from digital topographic map(1 to 5000) is used. As a result of an integration of DEMs, it can more clearly portray topographic slopes and tilts when applying the strengths of DEM of SAR image to DEM of an optical satellite image and in the case of HPF, the resulting DEM.

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A Research of Ink and Wash Elements on the 3D Animation Film <Deep Sea>

  • Biying Guo;Xinyi Shan;Jeanhun Chung
    • International Journal of Internet, Broadcasting and Communication
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    • v.15 no.3
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    • pp.82-87
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    • 2023
  • <Deep Sea> is an 3D animated film that stands out for its exceptional special effects and distinctive artistic style. The film employs a multitude of dazzling and vibrant ink particles, creating a strong sense of three-dimensionality and weightlessness, while simultaneously portraying a dreamlike and elegant representation of a deep sea ink painting. Furthermore, through the utilization of fragmented stream of consciousness narrative technique, the film establishes a unique artistic effect infused with a Chinese atmosphere. This paper by analyzing the unique particle ink art style and color and stream of consciousness narrative methods in film, this paper discusses the innovative art style generated by traditional ink art style combined with three-dimensional technology, and the integration of traditional ink art ideas and artistic conception in animated films. The objective is to cultivate a new ink art style and prove the importance of traditional cultural expression in animated films, while providing new perspectives for the future application of traditional art in animation.

A Study of 3D Digital Fashion Design Using Kazmir Malevich's Formative Elements as AI Prompt (카지미르 말레비치의 조형적 요소를 AI 프롬프트로 활용한 3D 디지털 패션디자인 연구)

  • Jooyoung Lee
    • Journal of Fashion Business
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    • v.28 no.3
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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.