Jong-An Park

Chosun University, Gwangju, Gwangju, South Korea

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Publications (62)4.37 Total impact

  • Youngeun An, Muhammad Riaz, Jong-An Park
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    ABSTRACT: Proposed algorithm is based on color information using HSV color space. Histogram search characterizes an image by its color distribution, or histogram but the drawback of a global histogram representation is that information about object location, shape, and texture is discarded. Thus local histogram is used for extracting the maximum color occurrence from each segment. Before extracting the maximum color from each segment the input image is adaptively segmented. Different quantization of hue and saturation are used for partitioning the image into different number of segments. Finally minkowski metric is used for feature vector comparison. Web based image retrieval demo system is built to make it easy to test the retrieval performance and to expedite further algorithm investigation.
    Proceedings of the 12th UKSim, International Conference on Computer Modelling and Simulation, Cambridge, UK, 24-26 March 2010; 01/2010
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    ABSTRACT: In order to organize, manage, browse and retrieve image database effectively, we proposed a novel technique for content based image retrieval using overlay blocks and maximal eigenvalues. Because image pixels have strong relationship with each other, the proposed algorithm generates feature vectors that use overlay parts between adjacent image blocks, and generates the binary map using maximal eigenvalues and block truncation technique for image retrieval. It was noticed that the binary map generated using the proposed method could reflect the target object information more efficiently. The experimental results show that the indexes have good ability of characterizing the image contents.
    Proceedings of the 12th UKSim, International Conference on Computer Modelling and Simulation, Cambridge, UK, 24-26 March 2010; 01/2010
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    ABSTRACT: This paper presents an application of vision-based object recognition to create in mobile robots. A system is developed which makes use of the scale invariant feature transform (SIFT) algorithm to recognize a leader robot or human. The follower robot then uses PID control to track the leader's movements while maintaining a fixed following distance. These experiments proved the SIFT algorithm as a viable method of creating leader/follower behavior, and can serve as a proof of concept for more complex convoying operations using machine-vision based leader detection.
    Proceedings of the International Conference on Ultra Modern Telecommunications, ICUMT 2009, 12-14 October 2009, St. Petersburg, Russia; 01/2009
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    Ahmad Nishat, Young-Eun An, Jong-An Park
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    ABSTRACT: This paper presents a new technique for corner shape based object retrieval from a database. The proposed feature matrix consists of values obtained through a neighborhood operation of detected corners. This results in a significant small size feature matrix compared to the algorithms using color features and thus is computationally very efficient. The corners have been extracted by finding the intersections of the detected lines found using Hough transform. As the affine transformations preserve the co-linearity of points on a line and their intersection properties, the resulting corner features for image retrieval are robust to affine transformations. Furthermore, the corner features are invariant to noise. It is considered that the proposed algorithm will produce good results in combination with other algorithms in a way of incremental verification for similarity.
    The Journal of The Korea Institute of Intelligent Transport Systems. 01/2009; 8(1).
  • Muhammad Riaz, Youngeun An, Jong-An Park
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    ABSTRACT: Color is a rich and complex experience, usually caused by the vision system responding differently to different wavelengths of light (other causes include pressure on the eyeball and dreams). Color of object can play an important role in recognizing that object from the image. Different kinds of color spaces have been established and studied in the past for image retrieval. In this paper also we have studied hue, saturation and value (HSV) color space. We used a feature extraction technique based on the adaptive segmentation of the image using its color information. By using different ranges of hue, saturation and value, image is first classified into n number of areas, and then each area is partitioned into m number of segments. Our focus is in the domain of photographic images with an essentially unlimited range of topics. We have used a Web-based retrieval system for feature extraction and image retrieval.
    Proceedings of the UKSim'11, International Conference on Computer Modelling and Simulation, Cambridge University, Emmanuel College, Cambridge, UK, 25-27 March 2009; 01/2009
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    ABSTRACT: Nowadays, travel information is increasing to appeal the tourists on the web. Although there are numerous information provided on the web, the user gets puzzled in finding accurate information. In order to solve these web problems, the concept of semantic web comes into existence to have communication between human and computer.In this paper, we propose intelligent recommendation system based on Jeju travel ontology. The proposed system can recommend the tourist more intelligent information using properties, relationships of travel ontology. Next, the system is responsible for finding personalized attractions and plotting location of traveler on the AlMap.
    AMS 2009, Third Asia International Conference on Modelling & Simulation, 25-29 May 2009, Bandung, Bali, Indonesia; 01/2009
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    ABSTRACT: In this paper, we have designed an RFID reader receiver system for improving the performance of the passive Tag-based 908.5–914 MHz RFID reader, and analyzed the system performance vis-à-vis frequency, reader, and tag properties. The commercial receiver system causes a loss in sensitivity because of its 24 capacitors and six inductors. To improve the overall sensitivity of the receiver, we have designed a system using a circulator, low noise amplifier (LNA) and a SAW filter. The experimental results show that the use of a circulator to separate the Tx-Rx paths eliminates interference, the LNA improves the sensitivity of the Rx module and SAW filter eliminates the noise and spurious components in the received signal. Copyright © 2009 John Wiley & Sons, Ltd. In this paper, we have designed an RFID receiver system for improving the performance of the passive Tag-based 908.5–914 MHz RFID reader, and analyzed the system performance vis-à-vis frequency, reader, and tag properties. The commercial receiver system causes a loss in sensitivity because of its 24 capacitors and six inductors. To improve the overall sensitivity of the receiver, we have designed a system using a circulator, an LNA, and a SAW filter. The experimental results are superior to the commercial receiver. Copyright © 2009 John Wiley & Sons, Ltd.
    International Journal of Communication Systems 01/2009; 22:1341-1354. · 1.11 Impact Factor
  • Muhammad Riaz, PanKoo Kim, Jong-An Park
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    ABSTRACT: In this paper we address the issue of image database retrieval based on color using HSV information space. Histogram search characterizes an image by its color distribution, or histogram but the drawback of a global histogram representation is that information about object location, shape, and texture is discarded. Thus we used local histogram to extract the maximum color occurrence from each segment. Before extracting the maximum color from each segment the input image is converted to HSV and adaptive segmentation is applied on the HSV color space. This will compute the feature vector. Different quantization of hue, saturation and value are used. Minkowski metric is used for feature vector comparison. Web based image retrieval demo system is built to make it easy to test the retrieval performance and to expedite further algorithm investigation.
    Proceedings of the Second International Joint Conference on Computational Sciences and Optimization, CSO 2009, Sanya, Hainan, China, 24-26 April 2009, Volume 1; 01/2009
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    ABSTRACT: The paper presents an algorithm which uses code vectors to represent comer geometry information for searching the similar images from a database. The comers have been extracted by finding the intersections of the detected lines found using Hough transform. Taking the comer as the center coordinate, the angles of the intersecting lines are determined and are represented using code vectors. A code book has been used to code each comer geometry information and indexes to the code book are generated. For similarity measurement, the histogram of the code book indexes is used. This result in a significant small size feature matrix compared to the algorithms using color features. Experimental results show that use of code vectors is computationally efficient in similarity measurement and the comers being noise invariant produce good results in noisy environments.
    The Journal of The Korea Institute of Intelligent Transport Systems. 01/2009; 8(3).
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    ABSTRACT: A wireless multihop ad hoc network is emerging as an important area for new developments in the ubiquitous network. Although ad hoc network is attractive solution, there are still some challenges in robustness and security issues. In this paper, we have depicted a secure framework for multipath routing in wireless multihop network, which is complete solution for end-to-end security for multpath wireless multihop network. We have analyzed the performance the proposed framework.
    2008 International Conference on Multimedia and Ubiquitous Engineering (MUE 2008), 24-26 April 2008, Busan, Korea; 01/2008
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    ABSTRACT: In recent years, with ubiquitous computing, the interconnection of MANET to Internet is getting more attention. Further, as use of multipath ad hoc routing protocols is favorable in many application, hybrid multipath MANET, which is a MANET with multiple routes to the Internet, will also grow. Security issues in hybrid MANET, however, is still challenging task. This paper addresses security issues related to Internet connectivity and ad hoc routing. And we propose a secure framework for global connectivity for connected multipath MANET. Security and performance analysis show that the proposed framework is effective.
    22nd International Conference on Advanced Information Networking and Applications, AINA 2008, Workshops Proceedings, GinoWan, Okinawa, Japan, March 25-28, 2008; 01/2008
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    ABSTRACT: Shape from focus (SFF) uses focus measure operator for depth measurement from a sequence of images. From the analysis of defocused image, it is observed that the focus measure operator should respond to high frequency variations of image intensity and produce maximum values when the image is perfectly focused. Therefore, an effective focus measure operator must be a high-pass filter. Laplacian is mostly used as focus measure operator in the previous SFF methods. In this paper, generalized Laplacian is used as focus measure operator for better 3D shape recovery of objects.
    Computational Science - ICCS 2008, 8th International Conference, Kraków, Poland, June 23-25, 2008, Proceedings, Part I; 01/2008
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    ABSTRACT: The paper presents a new approach for content based retrieval of images. The algorithm uses information sampled from around detected corner points in the image. A corner detection approach based on line intersections has been employed using Hough transform for line detection and then finding intersecting, near intersecting or complex shaped corners. As the affine transformations preserve the co-linearity of points on a line and their intersection properties, the corner points obtained as such retain the much desired property of repeatability and hence ensure the similar pixel samples under various transformations and are robust to noise. K-means clustering algorithm is used to assign class labels to the extracted sample mean and variance of the corner regions from a random selection of training images and used for learning a Gaussian Byes classifier to classify whole training image database. Histogram of the class members in an image has been used as a feature vector. The retrieval performance and behavior of the algorithm has been tested using four different similarity measures.
    IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2008, Sydney, NSW, Australia, December 10-12, 2008; 01/2008
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    ABSTRACT: One of the fundamental objectives of computer vision is to reconstruct a three-dimensional (3D) structure of objects from two-dimensional (2D) images. The basic idea of image focus is that objects at different distances from a lens are focused at different distances. Shape from Focus (SFF) is the problem of reconstructing the depth of the scene changing actively the optics of the camera until the point of interest is in focus. The point in focus gives information about its depth through the thin lens Gaussian law. An effective focus measure operator should be a high-pass filter. Usually, the variation of frequency components are not enough that focus measure could be computed pixel-wise, therefore, sum of pixels in small 2D windows are used for detecting the high frequency components. In this paper, we propose to use 3D windows instead of 2D windows for detecting the high frequency components in the images. The proposed algorithm using 3D window gives better depth map than the previous algorithms using 2D windows.
    The Second International Conference on Future Generation Communication and Networking, FGCN 2008, Volume 2, Workshops, Hainan Island, China, December 13-15, 2008; 01/2008
  • Computational Science and Its Applications - ICCSA 2008, International Conference, Perugia, Italy, June 30 - July 3, 2008, Proceedings, Part II; 01/2008
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    ABSTRACT: Mobile Ad-hoc networks have recently attracted a lot of attention in the research community as well as in industry. Although the previous research mainly focused on several of Ad-hoc in routing, we consider, in this paper, how to efficiently support applications such as variable Goocasting based on Ad-hoc networks. The goal of a geocasting protocol is deliver data packets to a group of nodes that are located within a specified geocasting region. Previous research that support geocast service in mobile computing based on Ad-hoc have the non-optimization problem of data delivery path, overhead by frequent reconstruction of the geocast tree, and service disruption problem. In this paper, we propose the mobility pattern based geocast technique using variable service range according to the mobility of destination node and resource reservation to solve this problem. The experimental results show that our proposed mechanism has improved performance of Accessibility & Network Overhead than previous research.
    Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on; 10/2007
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    ABSTRACT: This paper presents an image retrieval system using HSV color indexes. We classify the image into a fixed number of blocks, extract the key value of each block and assign the index code, which is classified by 24, to the HSV color space. The index code of each image is stored in the database. The desired image is retrieved on the web. Retrieval system outputs the image with a high matching factor according to a distribution chart. A small demonstration system has been tested and shows superior performance compared with the simple color based retrieval system.
    Advanced Intelligent Computing Theories and Applications. With Aspects of Contemporary Intelligent Computing Techniques, Third International Conference on Intelligent Computing, ICIC 2007, Qingdao, China, August 21-24, 2007. Proceedings; 01/2007
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    ABSTRACT: Mobile Ad hoc Networks (MANETs) are very attractive for many applications. However, media streaming over MANET is quite challenging task. In this paper, we depict a framework for audio streaming over multihop wireless network. And we propose multipath routing for MANET and investigated media streaming using different scalable speech coding techniques. With the simulation results, performance of such a framework is evaluated.
    Computational Science - ICCS 2007, 7th International Conference, Beijing, China, May 27 - 30, 2007, Proceedings, Part IV; 01/2007
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    ABSTRACT: Loran-C of ground transmitting station base that can prevent confusion of country navigation system and give BACK-UP function about electric wave navigation comparing utilization incapability state about GPS(Global Positioning System) infra that user is spreading rapidly over our society whole such as sea/aviation safety, vehicles navigation, minuteness agriculture, minuteness measurement in this treatise practical use of Loran-C navigation propose. Executed ASF(Additional Secondary Phase Factor) production and an application experiment Loran-C by location error improvement way to enhance practical use value. By the result Loran-C in conclusion that can improve location error 100~400m remarkably by 10~65m reach. Also, production extent is latitude when go composition medium and bends cotton at ASF revision table utilization of land area, this smell is judged to be suitable hardness 10 minutes. And notable location error improvement and numeric of GPS BACK-UP function are judged to be possible at a ASF revision table application to Korea Peninsula whole area hereafter.
    The Journal of Korea Navigation Institute. 01/2007; 11(1).
  • Jong-An Park, Seung Jo Han, PanKoo Kim
    Computational Science - ICCS 2007, 7th International Conference, Beijing, China, May 27 - 30, 2007, Proceedings, Part III; 01/2007

Publication Stats

97 Citations
4.37 Total Impact Points

Institutions

  • 1997–2009
    • Chosun University
      • • Department of Information and Communication Engineering
      • • Department of Computer Engineering
      • • College of Electronics and Information Engineering
      • • Department of Electronic Engineering
      Gwangju, Gwangju, South Korea
  • 2008
    • Tribhuvan University
      • Department of Electronics and Computer Engineering
      Kathmandu, CR, Nepal
  • 2002
    • Gwangju Institute of Science and Technology
      • School of Mechatronics
      Kwangju, Gwangju, South Korea