• Title/Summary/Keyword: Image Transformation

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Text Region Detection using Edge and Regional Minima/Maxima Transformation from Natural Scene Images (에지 및 국부적 최소/최대 변환을 이용한 자연 이미지로부터 텍스트 영역 검출)

  • Park, Jong-Cheon;Lee, Keun-Wang
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.2
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    • pp.358-363
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    • 2009
  • Text region detection from the natural scene images used in a variety of applications, many research are needed in this field. Recent research methods is to detect the text region using various algorithm which it is combination of edge based and connected component based. Therefore, this paper proposes an text region detection using edge and regional minima/maxima transformation algorithm from natural scene images, and then detect the connected components of edge and regional minima/maxima, labeling edge and regional minima/maxima connected components. Analysis the labeled regions and then detect a text candidate regions, each of detected text candidates combined and create a single text candidate image, Final text region validated by comparing the similarity and adjacency of individual characters, and then as the final text regions are detected. As the results of experiments, proposed algorithm improved the correctness of text regions detection using combined edge and regional minima/maxima connected components detection methods.

Continuity and Transformation of the Cartoon Strip for the Musical Performance (만화 소재 뮤지컬에 있어서 만화특성의 지속성과 변형에 대한 시론적 연구)

  • Yim, Hak-Soon
    • Cartoon and Animation Studies
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    • s.12
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    • pp.27-43
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    • 2007
  • The article concerns the continuity and transformation of the cartoon strip for the musical performance. Recently, the cartoon strip has been considered as a resource for creating the musical performance. However, There are a few articles on the relationship of the cartoon strip and the musical performance. In this respect, the article seeks to examine the characteristics of the cartoon strip and the musical performance in terms of planning system, storytelling structure, character formation and marketing strategies. The case on the musical entitled 'The Great Catsby', which is rooted in the cartoon strip entitled 'The Great Catsby', is examined. As a result, on the one hand, the characteristics of the cartoon strip has continuously affected the process of creating the musical performance in terms of storytelling, character formation, stage management and the marketing activities. On the other hand, the musical performance considers the music and sound, the moving image and stage management, performance of the actors as an essential part in comparison with the cartoon strip. In addition, the musical performance simplifies and recontructs the cartoon strip according to the principles of the musical performance.

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A Position Information Hiding in Road Image for Road Furniture Monitoring (도로시설물 모니터링을 위한 도로영상 내 위치정보 은닉)

  • Seung, Teak-Young;Lee, Suk-Hwan;Kwon, Ki-Ryong;Moon, Kwang-Seok
    • Journal of Korea Multimedia Society
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    • v.16 no.4
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    • pp.430-443
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    • 2013
  • The recognition of current position and road surrounding of car is very important to driver for safe driving. This paper presents the recognition technique of the road traveling environment using position information hiding and viewpoint transform that monitors the information of road furniture and signature and notifies them to driver. The proposed scheme generates the road images into which the position information are hided, from car camera and GPS module and provides the road information to driver through the viewpoint transformation and the road signature detection. The driving tests with camera and GPS module verified that the position information hiding takes about 66.5ms per frame, the detection rate of road signature is about 95.83%, and the road signature detection takes about 227.45ms per frame. Therefore, we know that the proposed scheme can recognize the road traveling environment on the road video with 15 frame rate.

Data Transformation and Display Technique for 3D Visualization of Rainfall Radar (강우레이더의 3차원 가시화를 위한 데이터 변환 및 표출기법)

  • Kim, Hyeong Hun;Park, Hyeon Cheol;Choi, Yeong Cheol;Kim, Tae Su;Choung, Yun Jae
    • Journal of Korea Multimedia Society
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    • v.20 no.2
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    • pp.352-362
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    • 2017
  • This paper proposes an algorithm for automatically converting and displaying rainfall radar data on a 3D GIS platform. The weather information displayed like rainfall radar data is updated frequently and large-scale. Thus, in order to efficiently display the data, an algorithm to convert and output the data automatically, rather than manually, is required. In addition, since rainfall data is extracted from the space, the use of the display image fused with the 3D GIS data representing the space enhances the visibility of the user. To meet these requirements, this study developed the Auto Data Converter application that analyzes the raw data of the rainfall radar and convert them into a universal format. In addition, Unity 3D, which has good development accessibility, was used for dynamic 3D implementation of the converted rainfall radar data. The software applications developed in this study could automatically convert a large volume of rainfall data into a universal format in a short time and perform 3D modeling effectively according to the data conversion on the 3D platform. Furthermore, the rainfall radar data could be merged with other GIS data for effective visualization.

A Study on the Expression Transformation of Visual Information in 3D Architectural Models (3차원 건축모델정보의 표현변용방식에 관한 연구)

  • Park, Young-Ho
    • Korean Institute of Interior Design Journal
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    • v.22 no.1
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    • pp.105-114
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    • 2013
  • This study investigated the application and the change of various architectural models by analyzing expression viewpoint media, which were applied to the visual information of digitalized 3D contemporary architectural models. The purpose of this study was to specify how modern architects have changed 3D architectural models to conceptual, logical, and formational visual information in the process of design. This study discovered a framework of analyses by theoretically investigating a relationship between expression media and expression change in the process of visualizing architectural models. Using the framework of analyses, this study analyzed how the expression viewpoints of architectural model information have been changed and applied. The transformation media of the visual information of digitalized 3D architectural models can be classified into conceptual, analytical, and formational information: 1) Contemporary architects used author-centered subjective viewpoints to express architectural concepts, which were generated in the process of their design. They selected a perspective viewpoint and a bird's eye view in order to present their architectural concepts and to depict them with one architectural model by expanding the visual scope of conceptual information. 2) Contemporary architects adopted observer-centered objective bird's eye view expression media to effectively present their architectural information to building owners and viewers. They used transformal media, which integrate architectural information into 3D and change it to different scales, in order to express their architecture logically. 3) Contemporary architects delivered model information about the generation and change of forms by expressing the image of a project from an author-centered viewpoint, instead of objectively defining formational information. They explained the generation principle of architectural forms via transformal media which develop and rotate an architectural model.

$L_2$-Norm Based Optimal Nonuniform Resampling (유클리드 norm에 기반한 최적 비정규 리사이징 알고리즘)

  • 신건식;엄지윤;이학무;강문기
    • Journal of Broadcast Engineering
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    • v.8 no.1
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    • pp.37-44
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    • 2003
  • The standard approach to signal resampling is to fit the original image to a continuous model and resample the function at a desired rate. We used the compact B-spline function as the continuous model which produces less oscillatory behavior than other tails functions. In the case of nonuniform resampling based on a B-spline model, the digital signal is fitted to a spline model, and then the fitted signal is resampled at a space varying rate determined by the transformation function. It is simple to implement but may suffer from artifacts due to data loss. The main purpose of this paper is the derivation of optimal nonuniform resampling algorithm. For the optimal nonuniform formulation, the resampled signal is represented by a combination of shift varying splines determined by the transformation function. This optimal nonuniform resampling algorithm can be verified from the experiments that It produces less errors.

In Situ Observation of Solidification Behavior in Undercooled $Pd_{40}Cu_{30}Ni_{10}P_{20}$ Alloy Melts during Linear Cooling (연속냉각 중 과냉 된 $Pd_{40}Cu_{30}Ni_{10}P_{20}$ 합금 용탕의 실시간 응고거동 관찰)

  • Kim, Ji-Hun
    • Journal of Korea Foundry Society
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    • v.23 no.5
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    • pp.276-285
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    • 2003
  • In the undercooled melt of $Pd_{40}Cu_{30}Ni_{10}P_{20}$ alloy, the solidification behavior including nucleation and growth of crystals at the micrometer level has been observed in-situ by use of a confocal scanning laser microscope combined with an infrared image furnace. The $Pd_{40}Cu_{30}Ni_{10}P_{20}$ alloy specimens were cooled from the liquid state to glass transition temperature. 575 K, at various cooling late under a helium gas flow. According to the cooling rate, the morphologies of the solidification front are changed among various types, irregular jog like front, columnar dendritic front, cellular grain, star like shape jog and fine grain, etc. The velocities of the solid-liquid interface are measured to be $10^{-5}{\sim}10^{-8}$ m/s which are at least two orders higher than the theoretical crystal growth rates. Combining the morphologies observed in terms of cooling rates and their solidification behaviors, we conclude that phase separation takes place in the undercooled molten $Pd_{40}Cu_{30}Ni_{10}P_{20}$ alloy. The continuous cooling transformation (CCT) diagram was constructed from solidification onset time at various linear cooling conditions with different rate. The CCT diagram suggests that the critical cooling rate for glassy solidification is about 1.5 K/s, which is in agreement with the previous calorimetric findings.

The Characteristics of Directing in Digital Animation : Combination of Reality and Exaggeration (디지털 애니메이션의 연출 특성 -사실적 표현과 과장성의 융합-)

  • Kim, Yumi
    • The Journal of the Korea Contents Association
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    • v.16 no.12
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    • pp.27-34
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    • 2016
  • The application of computer graphics, which is characterized by reality, has even reinforced reality of image and motion expression in digital animation. But reality of digital animation succeeds to traditional aesthetic characteristics of animation for overcoming physical limitations of the real world and realizing imagination through transformation, rather than copying actuality as it is. But it does not succeed to drawing animation wholly. Digital animation adds cartoonish transformation, based on three-dimensional realistic expression and those animation situations look as if they get over realistic restrictions, while drawing animation constantly reminds of mediality in drawing motion, based on two-dimensional plane and handwork. n other words, cartoonish exaggeration that is intermittently inserted between these reinforced realities, expresses digital animation's own aesthetic characteristics as a dialectical sum by crashing into contrast coming from a cross between reality and imagination.

A Transformation Method of Polygon Data for Visualization of Height Map in SEDRIS (SEDRIS에서 높이맵의 가시화를 위한 폴리곤 데이터 변환 방법)

  • Son, Hyun-Seung;Kim, Young-Chul
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.15 no.6
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    • pp.135-140
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    • 2015
  • The Cyber-Physical Systems (CPS) complexly perform modeling and simulation (M&S) for the various embedded systems. In this case, due to use diverse formatted models, we suggest to apply with the SEDRIS to systematically manage the different formatted data on M&S. The SEDRIS can reduce time and cost with reusing and interoperating environment data developed in the specific domain. To do this, we should input the data transformed the height map for terrain representation in a simulator into raster data of SEDRIS for which interoperate between the existed simulator and the SEDRIS. To solve the problem, we propose the transformation method to transfer the polygon data from RAW file used in terrain representation. With the proposed method, we can provide two advantages. First, it can possibly express the environment data into SEDRIS. Second, we can see the terrain like an image file through a viewer. Therefore, even non-expert easily constructs the terrain environment data.

Improved Object Tracking using Surrounding Information Detection (주변정보 검출을 통한 개선된 객체추적 기법)

  • Cho, Chi-young;Kim, Soo-Hwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.10a
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    • pp.1027-1030
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    • 2013
  • For the detection of objects in the videos, there are various ways that use the frequency transformation. In the videos, the images of objects could be changed slightly. Object detection methods using frequency transformation such as ASEF and MOSSE have the ability to renew the detection filter in order to deal with the change of object images. But these approaches are likely to fail the detection because the image changes often occur when they come out again after being hidden by other objects. What is worse, when they show up again, they appear in another place, not the original one. In this paper, a new proposal is present so that the detection can be carried out efficiently even when the images come out in other place, and the failure of the detection can be reduced.

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