• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2009.01a
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• pp.623-627
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• 2009

Recently, we have many kinds of picture format and display, and resizing (scaling) of picture becomes important. In this processing, quality of picture depends on re-sizing method. For this, some methods to improve the PSNR have been proposed. However, subjective picture quality is more important. Especially, degradation caused by re-sizing, such as jaggy (aliasing) and ringing, should be reduced. To solve them, we have proposed the method using directional adaptive interpolation. To improve the performance of this method, we consider the shape analysis this time. In the proposed method, directional adaptive processing is applied for pure edge only. In the texture area and flat area, 8 tap re-sampling filter is used. As the results of processing, the reductions of jaggy and incorrect interpolated pixels are recognized. The subjective picture quality of proposed method is significantly better than 8-tap re-sampling which gives good PSNR.

• ETRI Journal
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• v.29 no.1
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• pp.18-26
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• 2007

This paper presents an improved redundant picture coding method that efficiently enhances the error resiliency of H.264. The proposed method applies polyphase downsampling to residual blocks obtained from inter prediction and selectively encodes the rearranged residual blocks in the redundant picture coding process. Moreover, a spatial-temporal sample construction method is developed for the redundant coded picture, which further improves the reconstructed picture quality in error prone environments. Simulations based on JM11.0 were run to verify the proposed method on different test sequences in various error prone environments with average packet loss rates of 3%, 5%, 10%, and 20%. Results of the simulations show that the presented method significantly improves the robustness of H.264 to packet loss by 1.6 dB PSNR on average over the conventional redundant picture coding method.

• Journal of the Korean Home Economics Association
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• v.41 no.3
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• pp.17-30
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• 2003

The purpose of this study was to explore the difference mother-child verbal interaction between wordless and narrative picture book. Forty-two 4-year-old middle class children(21 girls and 21 boys) and their mothers were observed in their home. Major findings were as follows: 1) Mothers' verbal interaction strategies shows difference according to the genre of the book. Mothers used more descriptive statement, descriptive questions, inferential statements, evaluative statements and elaborative feedback when sharing the wordless book than the narrative book. 2) Children differently interact when reading picture books of different genres. Children used more descriptive statements, inferential statements and elaborative feedback. 3) Compared with the narrative picture boot mother and child engaged in more turn-taking when reading the wordless picture book. 4) While the proportion of collaborative type was higher when reading the wordless boot the proportion of passive type was higher when the narrative book.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2003.04a
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• pp.211-214
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• 2003

This paper presents the microscopic observation results from the picture frame test using five-harness satin weave fabric composite. Aligned and misaligned specimens are observed to verify the exact tow deformation pattern such as tow interval and change in tow amplitude. To observe the micro-deformation of the fabric structure, appropriate specimens from picture frame test are sectioned and observed under the microscope. From the observation results, it is found that a picture frame test with a misaligned fibre orientation angle shows large differences in deformation between tensile and compressive tow directions.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.314-316
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• 2005

Light flicker is a notorious phenomenon influencing light quality. The flicker of the light flux outputs from the light sources perceived by human eyes depends upon the lamp brightness fluctuations for projector display. This paper describes a ballast ignition control system, which makes the lamp strike frequency phase lock the blanking time period to minimize the flicker effect

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.34 no.3
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• pp.297-318
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• 2023

The purpose of this study is to propose criteria for selecting picture books as various reading education materials for middle school students and to check whether it can be applied to book selection. First, identified the educational value of picture books as reading materials and the criteria for selecting picture books by academic field through previous studies. After integrating the commonalities of various picture book selection criteria presented in previous studies by categorizing them into illustrations, text, and other categories. And it devised selection criteria that can be applied after selecting middle school students as readers. Based on the unified picture book selection criteria, a survey was conducted to ask in-service librarians about the main criteria to consider when selecting picture books for middle school students, and intensive interviews were conducted with experts who have experience in picture book education. As a result, the picture book selection criteria from previous studies were revised and supplemented with two criteria related to text, four criteria related to pictures, and five other criteria, and presented as picture book selection criteria for middle school students. To verify the practicality of the picture book selection criteria, it checked the applicability of each category of criteria to picture books recommended by the Children's Book Research Society (ages 13 and older). Out of 22 picture books for middle school students, 15 books could be applied to all categories of the selection criteria, showing significant practicality.

• Archives of design research
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• v.16 no.4
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• pp.233-242
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• 2003

The illustrations of picture book for children transmit not only one image but also the summary and contents of the picture book by connecting images harmoniously. The images of picture book give children a variety of emotion and impression depending upon the location of image at various factors such as blank and form, texture and colors, and space feeling, etc. Therefore, the picture book for children has the continuity transmitting the flow of images by not only the contents of natural story but also uniform and rhythmical factors. The continuity of images can transmit images by visual ideas that are produced depending upon the connections of pictures between writings and picture, between images, and inside images. In such a way, children can understand the contents of story. The paper examines the continuity of the images of the picture book for children and describes correct expressions on harmonious connections of the images made based on children's individuality and ingenuity.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.984-988
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• 2009

LCD를 이용해 화면상에 다양한 이미지를 제공하는 디지털액자는 디지털 카메라 사용의 대중화에 따라 지속적인 매출 증가를 보이고 있다. 디지털액자는 디지털 사진을 볼 수 있는 액정표시장치(LCD)로 된 제품으로써 현재는 디스플레이 시장 및 디지털 액자시장 성장, 디지털 기술 발전과 함께 다양한 포맷의 동영상을 지원하고, 음악을 재생하는가 하면 네트워크 기술까지 탑재한 다기능 디바이스(device)로 탈바꿈되고 있어 사용자를 위한 디지털 액자의 사용목적 및 기능에 따른 디지털 액자 형태의 세분화와 디자인 콘셉트는 더욱 다양화 될 것이다. 본 연구는 기존의 디지털 액자와 차별화 된 스마트픽쳐(Smart Picture)라는 제품 개발 콘셉트(Concept) 연구를 목적으로 한다. 스마트픽쳐(Smart Picture)라 함은 기존 디지털액자에서의 사진 및 동영상 보여주기 기능이외에도 전용화된 아트웍 (Artwork)형태의 전용화된 콘텐츠와 차별화된 형태와 재질을 가진 디지털액자를 뜻한다. 본 연구는 스마트픽쳐(Smart Picture) 개발을 위한 선행연구의 일환으로 제품 개발을 위한 콘셉트 디자인(Concept Design)연구를 목적으로 현재 시판되는 다양한 디지털액자와 관련된 사례분석과 디스플레이(Display)가 활용되는 분야 및 사용 콘텐츠(Contents) 사례 연구 조사, 디스플레이 활용분야, 미디어 작품 사례 조사를 통해 자료를 수집 및 아이디어 방향을 설정하고, 설정된 방향을 바탕으로 스마트픽쳐(Smart Picture)에 반영될 수 있는 아이디어 요소 도출 및 구체화 후에 스마트픽쳐(Smart Picture) 콘셉트 디자인 개념 제안까지를 연구 방향으로 한다.

• Journal of the Korean Home Economics Association
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• v.46 no.9
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• pp.71-85
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• 2008

This study examined the effects of a picture book literature education program in order to assess preschool children's recognition of and attitude towards picture books. The subjects were 56 five-year-old children, 30 of whom allocated to the experimental group and 26 to the control group. The literature education program lasted for 14 weeks. The control group children participated on the national early childhood education curriculum. Children were interviewed about their concepts, preferences, and attitudes towards picture books. The results indicated that compared to control group, children who participated in this program developed enhanced and richer concepts of picture books, displayed specific preferences, and put forward clearer reasons for their preference. ANCOVA result showed significant overall differences between the two groups. Children who participated in the ptrgram displayed more voluntary and active reading and applied the contents of the picture books to their real life situations.

• Journal of Korean Library and Information Science Society
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• v.41 no.3
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• pp.351-372
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• 2010

This study was conducted to improve the classification schemes of KDC in the fields of motion picture materials. Classification schemes of the KDC, DDC and LCC for motion picture materials were analyzed and compared. From the results, KDC was found to be the least suitable classification system to handle motion picture materials because it had very poorly detailed subdivisions of items and incomplete subsidiary tables to develop some subject items to represent various aspects of motion picture fields. Some suggestions to cover the deficiencies of KDC for motion picture fields were made in terms of 9 subdivisions and 53 sub-items. Particularly, new subdivisions of ‘types of genre', ’motion picture festival', 'worldwide motion pictures' and ’people related to motion pictures' were added.