• Title/Summary/Keyword: 명도 차분 맵

Search Result 4, Processing Time 0.019 seconds

Object VR-based Virtual Textile Wearing System Using Textile Texture Mapping (직물 텍스쳐 매핑을 이용한 객체 VR 기반 가상 직물 착용 시스템)

  • Kwak, No-Yoon
    • Journal of Digital Convergence
    • /
    • v.10 no.8
    • /
    • pp.239-247
    • /
    • 2012
  • This paper is related to an Object VR-based virtual textile wearing system carrying out textile texture mapping based on viewpoint vector estimation and intensity difference map. The proposed system is characterized as capable of virtually wearing a new textile pattern selected by the user to the clothing shape section segmented from multi-view 2D images of clothes model for Object VR(Object Virtual Reality), and three-dimensionally viewing its virtual wearing appearance at multi-view points of the object. Regardless of color or intensity of model clothes, the proposed system is possible to virtually change the textile pattern with holding the properties of the selected clothing shape section, and also to quickly and easily simulate, compare, and select multiple textile pattern combinations for individual styles or entire outfits. The proposed system can provide higher practicality and easy-to-use interface, as it makes real-time processing possible in various digital environment, and creates comparatively natural and realistic virtual wearing styles, and also makes semi-automatic processing possible to reduce the manual works.

Color Image Segmentation and Textile Texture Mapping of 2D Virtual Wearing System (2D 가상 착의 시스템의 컬러 영상 분할 및 직물 텍스쳐 매핑)

  • Lee, Eun-Hwan;Kwak, No-Yoon
    • Journal of KIISE:Computer Systems and Theory
    • /
    • v.35 no.5
    • /
    • pp.213-222
    • /
    • 2008
  • This paper is related to color image segmentation and textile texture mapping for the 2D virtual wearing system. The proposed system is characterized as virtually wearing a new textile pattern selected by user to the clothing shape section, based on its intensity difference map, segmented from a 2D clothes model image using color image segmentation technique. Regardless of color or intensity of model clothes, the proposed system is possible to virtually change the textile pattern or color with holding the illumination and shading properties of the selected clothing shape section, and also to quickly and easily simulate, compare, and select multiple textile pattern combinations for individual styles or entire outfits. The proposed system can provide higher practicality and easy-to-use interface, as it makes real-time processing possible in various digital environment, and creates comparatively natural and realistic virtual wearing styles, and also makes semi-automatic processing possible to reduce the manual works to a minimum. According to the proposed system, it can motivate the creative activity of the designers with simulation results on the effect of textile pattern design on the appearance of clothes without manufacturing physical clothes and, as it can help the purchasers for decision-making with them, promote B2B or B2C e-commerce.

2D Virtual Color Hairstyler Using Interactive Matting and Hair Color Mapping (상호대화식 매팅과 모발 컬러 매핑을 이용한 2D 가상 컬러 헤어스타일러)

  • Kim, Do-Yeon;Park, Jeong-Won;Kwak, No-Yoon
    • Proceedings of the KAIS Fall Conference
    • /
    • 2009.12a
    • /
    • pp.171-176
    • /
    • 2009
  • 본 논문은 사용할 수 있는 헤어스타일의 수가 제한되는 문제를 해결하기 위한 것으로, 상호대화식 매팅을 이용한 2D 가상 컬러 헤어스타일러에 관한 것이다. 사전에 준비된 그래픽 헤어스타일 외에도 원하는 헤어스타일을 보유한 2D 실사 영상으로부터 상호대화식 매팅 기술을 사용하여 헤어스타일을 분리 추출한 후, 영상 간 픽 앤 드롭(pick-and-drop) 방식으로 옮겨와 두상에 부착한 다음, 필요시 헤어스타일의 컬러도 자유롭게 변경할 수 있는 기능을 제공함으로써 저비용으로 활용 가능한 헤어스타일의 수를 증대시킬 수 있다. 이때 헤어스타일의 분리 추출은 사용자가 전경 객체의 개략적 윤곽을 그려줌에 따라 점증적으로 알파 매트를 계산하는 상호대화식 매팅 기술을 사용한다. 그리고 헤어스타일의 컬러 변경은 명도 차분 맵(intensity difference map)에 기반한 모발 컬러 매핑 기술을 사용한다. 제안된 방법은 직관적이고 편리한 상호대화식 사용자 인터페이스를 제공하기 때문에 작업자의 피로도를 경감시킴과 동시에 작업 시간을 단축할 수 있고 비숙련자도 간단한 사용자 입력을 통해 자연스러운 가상 헤어스타일을 생성할 수 있는 장점이다.

  • PDF

A Study on Fabric Color Mapping for 2D Virtual Wearing System (2D 가상 착의 시스템의 직물 컬러 매핑에 관한 연구)

  • Kwak, No-Yoon
    • Journal of Digital Contents Society
    • /
    • v.7 no.4
    • /
    • pp.287-294
    • /
    • 2006
  • Mass-customization is fast growing a segment of the apparel market. 2D Virtual wearing system is one of visual support tools that make possible to sell apparel before producing and reduce the time and costs related to product development and manufacturing in the world of apparel mass-customization. This paper is related to fabric color mapping method for 2D image-based virtual wearing system. In proposed method, clothing shape section of interest is segmented from a clothes model image using a region growing method, and then mapping a new fabric color selected by user into it based on its intensity difference map is processed. With the proposed method in 2D virtual wearing system, regardless of color or intensity of model clothes, it is possible to virtually change the fabric color with holding the illumination and shading properties of the selected clothing shape section, and also to quickly and easily simulate, compare, and select multiple fabric color combinations for individual styles or entire outfits.

  • PDF