• Broadcasting and Media Magazine
• /
• v.21 no.2
• /
• pp.30-35
• /
• 2016

동일한 장면을 촬영해도 카메라 종류나 세팅에 따라 또 어떤 모니터나 프린터를 이용해 영상을 출력하느냐에 따라 결과 영상은 크게 달라진다. 다양한 미디어에서 작가가 의도한 색감을 정확히 표현하는 것이 미디어 아트에서 중요한 이슈인만큼 본 고에서는 영상 장비들이 색을 만드는 원리에 대해 살펴보고 장비들간에 색을 맞추는 기술들의 원리에 대해 간략히 소개하고자 한다.

• Journal of KIISE:Software and Applications
• /
• v.36 no.8
• /
• pp.664-672
• /
• 2009

Recently, studies on utilizing tensor expression on image data analysis and processing have been attracting much interest. The purpose of this study is to develop an efficient system for classifying image patterns by using second order tensor expression. To achieve the goal, we propose a data generation model expressed by class factors and environment factors with second order tensor representation. Based on the data generation model, we define a function for measuring similarities between two images. The similarity function is obtained by estimating the probability density of environment factors using a matrix normal distribution. Through computational experiments on a number of benchmark data sets, we confirm that we can make improvement in classification rates by using second order tensor, and that the proposed similarity function is more appropriate for image data compared to conventional similarity measures.

• Journal of KIISE:Computer Systems and Theory
• /
• v.29 no.3
• /
• pp.134-142
• /
• 2002

Quadtree, which is a hierarchical data structure, is a very important data structure to represent binary images. The linear quadtree representation as a way to store a quadtree is efficient to save space compared with other representations. Therefore, it has been widely studied to develop efficient algorithms to execute operations related with quadtrees. The window operation is one of important geometry operations in image processing, which extracts a sub-image indicated by a window in the image. In this paper, we present an algorithm to perform the window operation of binary images represented by quadtrees, using three-dimensional $n{\times}n{\times}n$ processors on RMESH(Reconfigurable MESH). This algorithm has constant-time complexity by using efficient basic operations to route the locational codes of quardtree on the hierarchical structure of $n{\times}n{\times}n$ RMESH.

• Journal of Communication Design
• /
• v.59
• /
• pp.114-127
• /
• 2017

At present, the research of the method of 'Blank-Leaving' can be easily found in works of arts and architecture, while it can be hardly discovered in the academic research of film and television. However, as a means of expression, 'Blank-Leaving' gives a unique artistic charm to film and television works, and its development has a positive aesthetic effect to film arts. In order to go into details of the thought of 'Blank-Leaving' in movies, this paper firstly discusses the definition of 'Blank-Leaving', the history and social origin of 'Blank-Leaving' as well as its relationship with Taoism and its application in traditional Chinese painting. Secondly, this article analyzes its function and artistic expression in the film and television and the ideas sublimation it brings to people by means of combining the thought of 'Blank-Leaving' in Taoism. Finally, this work put forward the method of innovation and perfection of 'Blank-Leaving' in film and television works. This paper shows that, as a means of expression, 'Blank-Leaving' has not only realized the value of beauty, but also strengthened the public awareness of film arts.

• Proceedings of the Korean Information Science Society Conference
• /
• 1999.10b
• /
• pp.380-382
• /
• 1999

파노라마 영상은 카메라의 동작을 고려하여 시공간적으로 영상을 정렬한 영상으로서 효과적으로 비디오 데이터를 표현할 수 있는 방법이다. 그러나 기존의 파노라마 영상 구성 기법들은 영상을 정렬할 때 오버랩(overlap)되는 화소값들을 단순히 미디언 필터링하기 때문에 시간의 경과에 따른 밝기값의 동적인 변화를 수용하지 못한다. 따라서 본 논문에서는 이런 문제점을 해결하기 위해 시간적으로 증가하는 가중치를 사용하여 영상을 통합함으로써 최근의 영상 정보를 충분히 반영하는 파노라마 영상 구성 방법을 제안한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2019.06a
• /
• pp.13-16
• /
• 2019

영상이 포함하고 있는 풍부한 정보를 검출하고 이해하기 위해서는, 영상속의 일관된 상호관계를 갖는 영상 객체 그룹을 이해하고 표현하는 영상 구문 검출 기술(Visual Phrase Detecting Technology)이 필수적이다. 영상 구문 검출 기술은, 영상이 포함하고 있는 다양하고 풍부한 정보를 추출하고 활용하기 위한 핵심 기술로 이를 이용한 자동차 주행중 전방 감시, 영상의 자동 주석 달기, 동영상의 검색, 쇼핑 공간에서의 부정행위 검출(fraud detection) 등 다양한 분야에 적용할 수 있다.

• The Journal of the Korea Contents Association
• /
• v.5 no.4
• /
• pp.111-121
• /
• 2005

The appearance of digital culture swiftly has changed the culture in domestic and international arenas before and after the year 2004 and the image and animation have become two of the most important expression media in contemporary age. Among the Japanese animations that have demonstrated the rapid development of cartoon and animation in the world, the director Dakahata Isao's 'Graves of the Fireflies' that has influenced many works has been evaluated as one of the noticeable works that has a unique method and scenario dramatization in terms of producing the original novel into an animation. This study investigates the metaphor and symbolism shown in this work according to each sequence, divides the production ability in the work into three elements and applies them to the important elements such as camera, colors and mise-en-scene when the original work is depicted into image. It can be summarized in more detail as in the following: firstly, I study the rhythm of camera corresponding to the symbolism of the angle that the camera has and production; secondly, I analyze the artistic elements appeared in the process of expressing the original work into the image, especially the production for the colors and symbolism contained in them and the composition of screen. Thirdly, I analyze how effectively the atmosphere for the situations for the original work is expressed in animation with the aid of one of the image elements, mis-en-scene. It is expected that the analyzed findings will be effective as a way of overcoming the limitation of expressions that the original work in text and the study on these processes will become good examples to the relevant workers and will be the good references to the producers who are interested in the creation of animation in Korea.

• Journal of the Korean Institute of Telematics and Electronics
• /
• v.26 no.6
• /
• pp.79-88
• /
• 1989

In this paper, linear octree is used to reconstruct and to modify the 3-dimensional image from 2-dimensional cross sections provided by computed tomography. Linear octree introduces a considerable data saving of the memory storage required by small computer system. This structure allows the hidden surface removal utilizing the spatial presortedness of hierarchical octree structure and implementation of graphical operations that include viewing transform and shading. An actual human organ is used to illustrate this technique and its implications for theraphy and surgical planning.

• Journal of Broadcast Engineering
• /
• v.25 no.1
• /
• pp.58-66
• /
• 2020

The blur effect, which is generated by various external factors such as out-of-focus and object movement, degrades high-frequency components in the original sharp image. Based on this observation, we propose a novel method for blur detection using textural features. Specifically, the proposed method simultaneously adopts learning-based and watershed-based textural features, which effectively detect the blur on various situations. Moreover, we employ the region-based refinement to improve the processing time while also increasing detection accuracy. Experimental results demonstrate that the proposed method provides the competitive performance compared to previous approaches in literature.

• Journal of Digital Contents Society
• /
• v.9 no.3
• /
• pp.461-470
• /
• 2008

There are two methods to express natural phenomena using image processing techniques. One is the presentation of simulations for natural phenomena and the other is the display of images based on script. A lot of people used to get the display using vast data and complicated math formulas. When we get the output images in this way, we will have some problems in time and cost. In this paper, we use fluid images excluding using the complicated math formulas, programming, and taking pictures to present the natural phenomena. We construct the library to express the natural phenomena effectively using 2D images and simulation of fog for the background of oriental painting in 3D space.