• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.10a
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• pp.244-247
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• 2010

In this paper, propose for the international standards of security and reliability SEED block cipher algorithm is applied to the ICMP. This paper is improve security, reliability and user comfort of weakness existing integrated case management system on spring based java framework technology. As a result, part of the user interface to improve performance and can be applied to real world applications.

• Proceedings of the IEEK Conference
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• 2000.06b
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• pp.169-172
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• 2000

This paper describes design of cryptographic processor which can execute SEED, DES, and triple DES encryption algorithm. To satisfy flexible architecture and area-efficient structure, the processor has I unrolled loop structure with hardware sharing and can support four standard mode, such as ECB, CBC, CFB, and OFB modes. To reduce overhead of key computation, the precomputation technique is used. Also to eliminate increase of processing time due to data input and output time, background I/O technique is used which data input and output operation execute in parallel with encryption operation of cryptographic processor. The cryptographic processor is designed using 2.5V 0.25 $\mu\textrm{m}$ CMOS technology and consists of about 34.8K gates. Its peak performances is about 250 Mbps under 100 Mhz ECB SEED mode and 125 Mbps under 100 Mhz triple DES mode.

• Journal of the Institute of Electronics Engineers of Korea TE
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• v.39 no.1
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• pp.46-54
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• 2002

The world was opened by communication network because of fast improvement and diffusion of information communication. And information was effected in important factor that control economy improvement of the country. The country should improve the information security system because of necessity to maintain its information security independently. Therefore we have used the SEED cipher algorithm and designed the cipher chip of the voice band signal using the Xilinx Co. XCV300PQ240 chip. At the result we designed the voice signal cipher chip of the maximum frequency 47.895MHz and the total equivalent gate 27,285.

• Proceedings of the IEEK Conference
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• 2002.06b
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• pp.125-128
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• 2002

This paper designed a cipher process, which used SEED-Algorithm that is totally domestic technique. This cipher processor is implemented by using SEED-cipher-Algorithm and pipeline scheduling architecture. The cipher is 16-round Feistel architecture but we show just 16-round Feistel architecture for brevity in this thesis. Of course, we can get the result of the 16-round processing by addition of control part simply. Furthermore, it has pipelined architecture, so the speed of cipher process is the faster than others when we performed a cipher a lot of data. The schedule-function can performed the two-cipher process simultaneously, such as using two-cipher processors.

• Journal of Bio-Environment Control
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• v.13 no.2
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• pp.90-95
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• 2004

This study was conducted to develop an algorithm for the embryo location in seed by using machine vision. The topic of this research is to detect the embryo location in seed regardless of seed supply direction. In order to detect the embryo location in Cham Bak, Tuktojwa and Hukjong, the effect of seed posture in the supply line was investigated. When the seed posture angle of Chambak from horizontal direction was $30^{\circ}$, the detection accuracy for embryo location was 77.8%, while detection accuracy was 100% for the $0^{\circ}$ or $15^{\circ}$. When seed posture angle of Tuktojwa was $30^{\circ}$ from the horizontal direction, the detection accuracy was 89.5% and it was 100% for the $0^{\circ}$ and $15^{\circ}$. Embryo location detection accuracy for the Hukjong was 94.4% when the seed posture angle from the horizontal direction is $30^{\circ}$, and it was 100% for the $0^{\circ}$ and $15^{\circ}$. When seeds are fed into the posturing and seeding line, the seed postures within $30^{\circ}$ with mechanical means, and at most $15^{\circ}$ seed stand posture. the developed algorithm can detect the embryo position in the seed. So, this embryo detection system is very useful tool in the posturing and seeding line.

• Proceedings of the KSRS Conference
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• 2007.10a
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• pp.234-237
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• 2007

Road networks are important geospatial databases for various GIS (Geographic Information System) applications. Road digital maps may contain geometric spatial errors due to human and scanning errors, but manually updating roads information is time consuming. In this paper, we developed a new road features updating methodology using from multispectral high-resolution satellite image and pre-existing vector map. The approach is based on initial seed point generation using line segment matching and a modified double snake algorithm. Firstly, we conducted line segment matching between the road vector data and the edges of image obtained by Canny operator. Then, the translated road data was used to initialize the seed points of the double snake model in order to refine the updating of road features. The double snake algorithm is composed of two open snake models which are evolving jointly to keep a parallel between them. In the proposed algorithm, a new energy term was added which behaved as a constraint. It forced the snake nodes not to be out of potential road pixels in multispectral image. The experiment was accomplished using a QuickBird pan-sharpened multispectral image and 1:5,000 digital road maps of Daejeon. We showed the feasibility of the approach by presenting results in this urban area.

• Journal of KIISE:Databases
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• v.41 no.4
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• pp.217-225
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• 2014

Analysis of social media such as Twitter can yield interesting perspectives to understanding human behavior, detecting hot issues, identifying influential people, or discovering a group and community. However, it is difficult to gather the data relevant to specific topics due to the main characteristics of social media data; data is large, noisy, and dynamic. This paper proposes a new algorithm that dynamically selects the seed nodes to efficiently collect tweets relevant to topics. The algorithm utilizes attributes of users to evaluate the user influence, and dynamically selects the seed nodes during the collection process. We evaluate the proposed algorithm with real tweet data, and get satisfactory performance results.

• Proceedings of the IEEK Conference
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• 2001.09a
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• pp.981-984
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• 2001

본 논문은 이동물체 영역을 신뢰성 있게 분리하는데 기초가 되는 seed를 정확하게 선정하고, 선정된 seed를 중심으로 영역을 확장함으로써 이동물체 영역을 분리하기 위한 방법을 제안한다. 고정된 카메라로부터 입력되는 연속된 영상열로부터 초기의 이동물체가 존재하지 않는 영상을 참고영상으로 하여 입력영상과의 차영상을 구하고 차영상의 히스토그램에서 배경잡음 모델링을 통해 배경잡음을 제거한다. 그리고 배경잡음이 제거된 차영상에서 Local Maxima 들을 이용해 후보 seed를 선정한 후, 이드의 특징값들을 분석하여 이동물체의 seed와 배경의 seed 를 결정하고 이 두 개의 seed를 기반으로 watershed 알고리즘을 적용하여 영역을 확장함으로써 이동물체 영역을 추출한다. 제안된 방법을 실제 상황에서 얻은 다양한 영상열에 적용한 결과, 기존의 영역분리 알고리즘보다 주위 잡음의 영향을 적게 받으며 효과적으로 이동물체를 분리할 수 있음을 확인할 수 있었다.

• Proceedings of the Korea Contents Association Conference
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• 2004.05a
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• pp.283-288
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• 2004

Authentication and digital signature make secured existing contract in remote spot. But, It required method of storing and managing secret, such as private key password. For this method, we make efforts solution of security with smart cart, such as java card. This paper implement SEED algorithm based on Java Card

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1453-1456
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• 2000

국내에서는 전자상거래 진흥을 도모하고 정보사회에서의 국가 경쟁력을 확보하기 위해 128비트 블록암호알고리즘인 SEED를 발표하였다. 본 논문에서는 SEED의 하드웨어적인 응용을 위하여 외부 인터페이스를 고려한 고속의 하드웨어 구현에 대하여 연구하였다. VHDL을 이용하여 모델링 하였으며 시뮬레이션 및 합성 과정을 거쳐 수행을 검증하였다.