• Proceedings of the Korea Information Processing Society Conference
• /
• 2000.04a
• /
• pp.1172-1177
• /
• 2000

본 논문은 SMIL의 작성 시에 편리함을 제공하기 위한 시각적 편집 도구를 제안한다. SMIL은 서로 다른 미디어간의 동기화를 가능하게 하는 스크립트 언어이다. SMIL은 텍스트 편집기를 통하여 작성되는데 이는 작성에 있어 직관적인 면이 없어 많은 불편함을 갖는다. 따라서 시각적 편집 도구가 필요하며 이를 구현하기 위해 본 논문에서는 SMIL의 작성을 프리젠테이션과 하이퍼 프리젠테이션의 두 측면에서 설계하였으며 시각적 편집 도구 구현에는 멀티미디어 아이콘 프로그램 도구인 VIP를 확장하여 완성하는 방법을 택하였다. VIP를 확장함으로써 SMIL 번역이라는 기본 목적 외에 부가적으로 MuX의 공간적 동기화에 관련된 기능의 한계를 극복할 수 있게 된다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.11a
• /
• pp.1180-1182
• /
• 2012

최근 시설물이 대형화 및 복잡화 되어 가면서 실외 공간뿐만 아니라 실내공간에 대한 관심이 국내외적으로 높아지고 있다. 이에 실내공간을 3차원으로 표현하고, 실외와 실내를 연계 및 통합하려는 연구가 국내외적으로 시도되고 있다. 본 연구에서는 실외와 실내의 연계 및 통합을 위한 전 단계의 연구로 현재 국제 표준화 작업이 진행 중인 실내공간을 표현하는 IndoorGML 데이터모델을 대상으로 그 데이터를 편집하고 가시화하는 도구를 구현하였다.

• Journal of Korea Multimedia Society
• /
• v.25 no.11
• /
• pp.1634-1642
• /
• 2022

Numerous studies have attempted to present converting 2D drawings to 3D. However, converting 3D shapes to exactly how a person thinks is challenging because 2D drawings include numerous variables and possibilities. This study focuses on visualizing 2D to 3D in a commonly used 3D animation software required in animation education or the 3D industry. We implemented our SketchTo3D tool to add the editing and automatic texture assigning method from the imported 2D image into the 3D software that previously had to be done manually. As a result, the SketchTo3D tool saves time to immediately visualize the composition, shape, and volume to express the 3D character, providing an opportunity to break down the barrier between 2D and 3D.

• Journal of Korea Multimedia Society
• /
• v.24 no.11
• /
• pp.1472-1480
• /
• 2021

Image stacking technique is one of the key techniques for complex surface reconstruction. The process includes sample collection, image processing, algorithm editing, surface reconstruction, and finally reaching reliable conclusions. Since this experiment is based on laser scanning confocal microscope to collect the original contour information of the sample, it is necessary to briefly introduce the relevant principle and operation method of laser scanning confocal microscope. After that, the original image is collected and processed, and the data is expanded by interpolation method. Meanwhile, several methods of surface reconstruction are listed. After comparing the advantages and disadvantages of each method, one-dimensional interpolation and volume rendering are finally used to reconstruct the 3D model. The experimental results show that the final 3d surface modeling is more consistent with the appearance information of the original samples. At the same time, the algorithm is simple and easy to understand, strong operability, and can meet the requirements of surface reconstruction of different types of samples.

• Journal of the Semiconductor & Display Technology
• /
• v.20 no.4
• /
• pp.151-156
• /
• 2021

Low-end IoT devices do not have enough computation and memory resources for DNN learning and inference. Integer quantization of real-type neural network models can reduce model size, hardware computational burden, and power consumption. This paper describes the design and implementation of a web-based quantization platform for CNN deep learning accelerator chips. In the web service platform, we implemented visualization of the model through a convenient UI, analysis of each step of inference, and detailed editing of the model. Additionally, a data augmentation function and a management function of files that store models and inference intermediate results are provided. The implemented functions were verified using three YOLO models.

• Genomics & Informatics
• /
• v.18 no.4
• /
• pp.46.1-46.4
• /
• 2020

We developed the BaSDAS (Barcode-Seq Data Analysis System), a GUI-based pooled knockout screening data analysis system, to facilitate the analysis of pooled knockout screen data easily and effectively by researchers with limited bioinformatics skills. The BaSDAS supports the analysis of various pooled screening libraries, including yeast, human, and mouse libraries, and provides many useful statistical and visualization functions with a user-friendly web interface for convenience. We expect that BaSDAS will be a useful tool for the analysis of genome-wide screening data and will support the development of novel drugs based on functional genomics information.

• Journal of Korea Multimedia Society
• /
• v.22 no.5
• /
• pp.527-534
• /
• 2019

Recently, Photo editing softwares such as digital cameras, Paintshop Pro, and Photoshop digital can create counterfeit images easily. Various techniques for detection of tamper images or forgery images have been proposed in the literature. A form of digital forgery is copy-move image forgery. Copy-move is one of the forgeries and is used wherever you need to cover a part of the image to add or remove information. Copy-move image forgery refers to copying a specific area of an image itself and pasting it into another area of the same image. The purpose of copy-move image forgery detection is to detect the same or very similar region image within the original image. In this paper, we proposed fast detection of forgery image using four step search based on discrete cosine transform and a four step search algorithm using discrete cosine transform (FSSDCT). The computational complexity of our algorithm reduced 34.23 % than conventional DCT three step search algorithm (DCTTSS).

• Proceedings of the Korea Information Processing Society Conference
• /
• 2004.05a
• /
• pp.815-818
• /
• 2004

현재 GUI 인터페이스와 컴퓨터 기술의 발전으로 다양한 형태의 그래픽 모델링 도구들과 시각 프로그래밍 시스템들이 사용되고 있다. 이러한 시스템들을 개발하기 위해서는 사용자가 그래픽 요소들의 형태와 그래픽 요소들간의 연결 관계를 개발자가 직접 프로그램을 이용해서 작성하여야 하기 때문에 많은 시간과 노력을 필요로 한다. 이러한 문제를 해결하기 위해서 본 논문에서는 그래픽 요소의 형태와 그래픽 요소들간의 연결성을 직접 조작 방식을 이용해서 기술할 수 있는 토큰 편집기인 TEdi(Token Editor)와 시각 프로그래밍의 기본적인 기능을 지원할 수 있는 AVE(Abstract Visual Editor)를 소개한다. TEdi는 그래픽 요소들을 정의하기 위해서 사용되며, 토큰 단위의 각 그래픽 요소는 다른 그래픽 요소와 연결되기 위해서 연결자를 사용한다. 연결자는 그래픽 편집기에서 연결될 수 있는 그래픽 요소를 제한함으로써 시각 프로그래밍 혹은 모델링에서 구문 오류를 줄여줄 수 있다. 본 논문에서 제공하는 시스템을 사용하는 경우에 사용자는 보다 쉽게 그래픽 요소와 시각 프로그래밍 혹은 모델링 도구를 작성할 수 있을 것이다.

• International Journal of Internet, Broadcasting and Communication
• /
• v.11 no.1
• /
• pp.54-59
• /
• 2019

The parametrization of the surface plays an important role in the 3D computer graphics and computer vision. Especially, it is essential in 3D mesh editing that manipulates the position of 3D objects on a computer monitor. Because computer monitors are two-dimensional, while vertices of objects that actually want to change are in a three-dimensional virtual space. In this study, we propose a new type of parametrization method that takes advantage of the special properties of circles that are common to local parameterization. Experimental results show that our parameterization method is more efficient in terms of time and space than the standard parameterization method that was designed by Floater et al.

• Journal of the Korea Society of Computer and Information
• /
• v.24 no.4
• /
• pp.19-26
• /
• 2019

In this study, we study the development and control of motion of 3D character animation and discuss the development direction of technology. Character animation has been developed as a data-based method and a physics-based method. The animation generation technique based on the keyframe method has been made possible by the development of the hardware technology, and the motion capture device has been used. Various techniques for effectively editing the motion data have appeared. At the same time, animation techniques based on physics have emerged, which realistically generate the motion of the character by physically optimized numerical computation. Recently, animation techniques using machine learning have shown new possibilities for creating characters that can be controlled by the user in real time and are expected to be developed in the future.