• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.11C
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• pp.1123-1129
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• 2003

In the H.264 video coding standard, the information for the macroblock is encoded by the independent syntax elements, called RUN and MB_type. Through the experimental observation for various test sequences, it is shown that the performance of the video coding is improved by using the combined RUN and MB_type as an entity. Based on this fact, we propose an unified new syntax element composed of the RUN and MB_type in order to improve the compression ratio of H.264 video coding. In the proposed syntax element, an EOF(End-Of-Frame) symbol indicating the end of picture is used for enhancing the performance of video coding. The simulation result shows that the proposed method outperforms maximally 15 % to the conventional method for the bitrate of the macroblock.

• Journal of IKEEE
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• v.20 no.3
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• pp.326-329
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• 2016

HEVC CABAC encoder performs binary arithmetic encoding after syntax elements are converted into binary values. Therefore, in HEVC CABAC decoder, binarized syntax elements from binary arithmetic decoder should be de-binarized into original syntax elements in the de-binarizer. In this paper, a HEVC CABAC de-binarizer architecture was proposed and implemented. It consists of a controller that analyzes and merges binarized syntax elements and an engine that converts merged binarized syntax elements into original syntax elements. The designed de-binarizer was described in Verilog HDL and it was synthesized and verified in 0.18um process technology. Its gate count and maximum operating frequency are 3,114 gates and 220 MHz, respectively.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.29 no.8C
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• pp.1055-1061
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• 2004

In this paper, we propose an efficient dynamic coding scheme by using multiple codewords in H.264/AVC entropy coding. The exponential Golomb (Exp-Golomb) codewords used in H.264/AVC do not reflect enough the symbol distributions of the combined syntax element in (7) due to their static probability distribution characteristics. However, the multiple codewords in this paper have different statistical characteristics. we propose a dynamic coding scheme by using selectively among multiple codewords to encode the combined syntax element according to given image sequences. Simulation results show that our proposed scheme outperforms the existing (7) method in compression efficiency without loss of quality.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.29 no.9C
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• pp.1244-1251
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• 2004

In this paper, we propose an efficient dynamic coding scheme by using multiple code words in H.264/A VC entropy coding. The exponential Golomb (Exp-Golomb) code words used in H 264/A VC do not reflect enough the symbol distributions of the combined syntax element in [7] due to their static probability distribution characteristics However, the multiple codewords in this paper have different statistical characteristics. we propose a dynamic coding scheme by using selectively among multiple codewords to encode the combined syntax clement according to given image sequences. Simulation results show that our proposed scheme outperforms the existing [7] me in compression efficiency without loss of quality.

• Journal of The Korean Digital Architecture Interior Association
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• v.9 no.3
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• pp.95-102
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• 2009

An architectural space can be considered a life form that interconnects a number of architectural elements such as the humans who live in it. It is difficult to understand and evaluate the complexity of the interrelation between each element, but there have been various attempts to understand and evaluate this architectural space. The Space Syntax that emerged in 1980s has been studied and used more frequently than other methods. Space Syntax is the space analysis tool that analyzes the physical structure of space and represents it as a graph. Space syntax enables its various applications in space analysis by quantifying each spatial property of a whole structure, analyzing it systemically and objectively based on mathematical logic, and representing the results as a quantitative value. Integration of Space Syntax, a widely used index, reflects human behavior in spatial configuration. Meanwhile, there have been various studies in the field of architectural environmental psychology about the relationships between space and human behavior by applying behavioral science to architectural plan. One of the most widely used one is spatial behavior simulation which uses models and simulates the behavioral characteristics to anticipate practical situations and investigate the behavior related spatial problems. In this study, which focuses on the accessibility of the space syntax model, the usefulness of space will be analyzed through the simulation of human behavior that moves through each space. Furthermore, the validity of index will be verified by displaying several examples and compared with integration in space syntax, which represents the usefulness of space.

• Proceedings of the Korean Society for Language and Information Conference
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• 2002.02a
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• pp.36-49
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• 2002

One main complexity of the copula constructions concerns a mismatch between morphology and syntactic constituency: the copula seems to form a morphological unit with the immediately preceding element, whereas in terms of syntax the copula appears to take this as its syntactic complement. In capturing such mismatches, we show that the copula is treated as an independent verb at the level of tectogrammatical structure (or syntax tree), whereas as a bound morpheme at the level of phonogram-matical structure (or domain tree), in terms of Dowty 1992 (or Reape 1994). This paper, adopting the notion of DOMAIN in HPSG, shows that copula constructions are a subtype of compacting-constructions. These constructions compact the domain value of the copula and that of its preceding element together into one domain unit, eventually making it inert to syntactic phenomena such as scrambling, deletion and pro-form substitution. This construction-based approach provides a clean analysis for the formation of the copula construction and related phenomena.

• Journal of the Korean Society for information Management
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• v.17 no.3
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• pp.147-170
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• 2000

RDF treats all resources independently, that's integrated description model for internet resources description, that provides the model to connect resources that related with the specific resources. This article performs theoretical review of RDF model and syntax specification and RDF schema specification that's a common rule of semanics, structure and syntax those provides search and access in the area of dispersed information environment of internet and Dublin Core that's description element for build metadata. And with this way it's materialized metadata design, schema, DTD of Dublin Core element for building RDF-based metadata that is XML application.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2002.04a
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• pp.99-104
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• 2002

The main concept of this thesis is to research about how to express the interface element of the virtual museum on tile cyber space and how to evaluate its organization. In addition, the basis of this thesis is to help people build their efficient spaces on the current virtual museum. My understanding about the interface element and its structural evaluation is grounded on Usability evaluation and Syntax thesis. For the survey, I utilize two different methods. One is regular questionnaire; the other is heuristic evaluation which is derived from empirical study and practical experience. The survey is mainly composed of contents, design, usability and overall impression. The main concept of this research is to establish the initial foundation of the virtual museum on cyber space by suggesting an objective evolutional norm including esthetic orientation.

• Korean Institute of Interior Design Journal
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• v.20 no.5
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• pp.51-58
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• 2011

As it gets nearer to the modern society, social and cultural situations are changing and the spatial form of public space is changing into the complex structure where it is interlinked with each other diversely. In particular, as the development of large-scale complex spreads nationwide, the form of complex commercial space assuming the nature of malls appears prominently. In such a large-scale complex commercial space, the diverse visual elements make the environment difficult to be perceived. Like this, the attention in the commercial space where a variety of visual stimuli are in the presence, is important element, so the plan of VP(visual presentation) is needed for effectively selecting or inducing the space. Thus, in this study, human visual and perception process will be reviewed and a method to evaluate the attention will be proposed. Also, the attention of each stores in the complex commercial spaces will be evaluated to propose the indicators for resonable spatial panning in the future.

• Journal of KIISE:Software and Applications
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• v.30 no.3_4
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• pp.268-277
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• 2003

A document type definition(DTD) which defines tags for a document is a XML document grammar that defines syntactic structure of a document. An XML document keeps the rules and must be parsed to check validation. To parse XML document, the deterministic parsing method of programming language is irrelevant because it does not satisfy the definition of deterministic content model in element declaration. In this paper, we consider editing of a valid XML document in syntax-directed editing environment, and we suggest the internal storage representations of syntax in DTD and theirs algorithms. The consequence is that a syntactic structure of textual DTD is transformed into graph and table structures. The table structure of DTD is interpreted the context free grammar which has attribute values and is used in syntax-directed editor for XML. We called this the XML abstract grammar and showed generated results and examples.