• Title/Summary/Keyword: gap characters

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A Recognition System for Multi-Form Korean Characters Based on Hierarchical Temporal Memory

  • Haibao, Nan;Bae, Sun-Gap;Bae, Jong-Min;Kang, Hyun-Syug
    • Journal of Korea Multimedia Society
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    • v.12 no.12
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    • pp.1718-1727
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    • 2009
  • Traditional character recognition systems usually aim at characters with simple variation. With the development of multimedia technology, printed characters may appear more diversely. Existing recognition technologies can't deal with Hangul recognition effectively in diverse environments. This paper presents a recognition system for multi-form Korean characters called RSMFK, which is based on the model of Hierarchical Temporal Memory (HTM). Our system can effectively recognize the printed Korean characters of different fonts, scales, rotation, noise and background. HTM is a model which simulates the neocortex of human brain to recognize and memorize intelligently. Experimental results show that RSMFK performs a good recognition rate of 97.8% on average, which is proved to be obviously improved over the conventional methods.

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Character Segmentation in Chinese Handwritten Text Based on Gap and Character Construction Estimation

  • Zhang, Cheng Dong;Lee, Guee-Sang
    • International Journal of Contents
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    • v.8 no.1
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    • pp.39-46
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    • 2012
  • Character segmentation is a preprocessing step in many offline handwriting recognition systems. In this paper, Chinese characters are categorized into seven different structures. In each structure, the character size with the range of variations is estimated considering typical handwritten samples. The component removal and merge criteria are presented to remove punctuation symbols or to merge small components which are part of a character. Finally, the criteria for segmenting the adjacent characters concerning each other or overlapped are proposed.

An Internal Segmentation Method for the On-line Recognition of Run-on Characters (온라인 연속 필기 한글의 인식을 위한 내부 문자 분할에 관한 연구)

  • 정진영;전병환;김우성;김재희
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.32B no.9
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    • pp.1231-1238
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    • 1995
  • In on-line character recognition, to segment input character is important. This paper proposes an internal character segmentation algorithm. The internal segmentation algorithm produces candidate words by considering possible combinations of Korean alphabets. In this process, we make use of projections of strokes onto the horizontal axis to remove ambiguities among candidate words. As a result of experiments, the internal segmentation algorithm shows better performance than external segmentation algorithm as the gap between sample characters becomes smaller.

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The Formation and Alternation of Sino-Korean Pronunciation (조선한자음(朝鮮漢字音)의 성립(成立)과 변천(變遷))

  • Chung, Kwang
    • Lingua Humanitatis
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    • v.7
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    • pp.31-56
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    • 2005
  • In most Asian areas Chinese writing and characters had been used as a unique recording device. The way to account for the circumstance related with the writing system could be twofold. Firstly the races inhabited around Sino-territory actually neither used the type of languages as Chinese - not isolating type but agglutinative one - nor established any independent writing letters. Secondly those people who belonged to the races accepted the writing system of China due to the frequent cultural and economical interchange between them and Chinese people. In Korean peninsula the same situation of linguistic phenomenon had been pervasive. The aborigine of the territory who acquired to use Chinese writing applied their knowledge of the second language to record the facts related with the management of the country. But the grammatical structure of Chines writing and native language showed the remarkable contrast; so, the people of the peninsula managed the specific letter system - in other words, the discrepancy between language and writing. This difference carried on the huge influence on the way of using Chinese writing and characters in Korea. Some scholars of historical linguistics of Korean language considered the alternation of Chinese writing system and characters as "the procedure of nativization" - in which the inflow of characters into Korean and the same one continuously used in China illustrated the large gap of the phonological aspects. The method of reading Chinese characters came to be named as Sino-Korean Pronunciation. In the categorization of Chinese characters' pronunciation Sino-Korean Pronunciation was also categorized as the Eastern Pronunciation(東音). It indicates the sound of Chinese characters which has been historically adapted to the phonological system of Korean language. In this paper the main point is to survey the procedure of reception of Chinese writing and characters and that of establishment and alternation of Korean phonetic feature of Chinese writing and characters.

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A Study on Gendered Portrayals in Children's Picture Books with Mathematical Content

  • Ladd, Patricia R.
    • International Journal of Knowledge Content Development & Technology
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    • v.1 no.2
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    • pp.5-14
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    • 2011
  • This study analyzes sexism in children's picture books that incorporate mathematical problems and problem-solving into the plot to determine if children's earliest reading material is affecting the achievement gap between males and females in this subject area. The study focused not just on overall totals of male and female characters, but also analyzed which genders most often portrayed gender stereotyped behaviors and personality traits and which characters were most often shown with mathematical skills. The findings of the study show that there were twice as many male as female characters, and the math problem-solving was generally done by males in the majority of titles.

Systematic Study of the Mesochorinae(Hymenoptera: Ichneumonidae) from the Eastern Palearctic Region III. - Morphometric Analysis of Astiphromma jezoense Uchida - (동구북구산 Mesochorinae 아과 (벌목:맵시벌과)의 계통분류학적 연구 III. -Astiphromma jezoense Uchida의 계량형능학적분석)

  • 이종욱;서경인;차진열
    • Korean journal of applied entomology
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    • v.35 no.2
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    • pp.104-113
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    • 1996
  • In order to clarify the interspecific variation of Astiphrom jezoense, a morphometric analysis was performed for seven populations using PCA (principle component analysis) and discriminant analysis. As a result of PCA, 25 quantitative characters are grouped into four factors. The characteristics on legs are especially important components both in male and in female. Morphometric analysis indicate that considerable morphological gap is correlated with geographical habitat. Important discriminant characters are MOD (maximum ocellar distance), Fn (first tergite length) in female and MSL (malar space length) in male.

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Story-based Information Retrieval (스토리 기반의 정보 검색 연구)

  • You, Eun-Soon;Park, Seung-Bo
    • Journal of Intelligence and Information Systems
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    • v.19 no.4
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    • pp.81-96
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    • 2013
  • Video information retrieval has become a very important issue because of the explosive increase in video data from Web content development. Meanwhile, content-based video analysis using visual features has been the main source for video information retrieval and browsing. Content in video can be represented with content-based analysis techniques, which can extract various features from audio-visual data such as frames, shots, colors, texture, or shape. Moreover, similarity between videos can be measured through content-based analysis. However, a movie that is one of typical types of video data is organized by story as well as audio-visual data. This causes a semantic gap between significant information recognized by people and information resulting from content-based analysis, when content-based video analysis using only audio-visual data of low level is applied to information retrieval of movie. The reason for this semantic gap is that the story line for a movie is high level information, with relationships in the content that changes as the movie progresses. Information retrieval related to the story line of a movie cannot be executed by only content-based analysis techniques. A formal model is needed, which can determine relationships among movie contents, or track meaning changes, in order to accurately retrieve the story information. Recently, story-based video analysis techniques have emerged using a social network concept for story information retrieval. These approaches represent a story by using the relationships between characters in a movie, but these approaches have problems. First, they do not express dynamic changes in relationships between characters according to story development. Second, they miss profound information, such as emotions indicating the identities and psychological states of the characters. Emotion is essential to understanding a character's motivation, conflict, and resolution. Third, they do not take account of events and background that contribute to the story. As a result, this paper reviews the importance and weaknesses of previous video analysis methods ranging from content-based approaches to story analysis based on social network. Also, we suggest necessary elements, such as character, background, and events, based on narrative structures introduced in the literature. We extract characters' emotional words from the script of the movie Pretty Woman by using the hierarchical attribute of WordNet, which is an extensive English thesaurus. WordNet offers relationships between words (e.g., synonyms, hypernyms, hyponyms, antonyms). We present a method to visualize the emotional pattern of a character over time. Second, a character's inner nature must be predetermined in order to model a character arc that can depict the character's growth and development. To this end, we analyze the amount of the character's dialogue in the script and track the character's inner nature using social network concepts, such as in-degree (incoming links) and out-degree (outgoing links). Additionally, we propose a method that can track a character's inner nature by tracing indices such as degree, in-degree, and out-degree of the character network in a movie through its progression. Finally, the spatial background where characters meet and where events take place is an important element in the story. We take advantage of the movie script to extracting significant spatial background and suggest a scene map describing spatial arrangements and distances in the movie. Important places where main characters first meet or where they stay during long periods of time can be extracted through this scene map. In view of the aforementioned three elements (character, event, background), we extract a variety of information related to the story and evaluate the performance of the proposed method. We can track story information extracted over time and detect a change in the character's emotion or inner nature, spatial movement, and conflicts and resolutions in the story.

Segmentation Algorithm for Wafer ID using Active Multiple Templates Model

  • Ahn, In-Mo;Kang, Dong-Joong;Chung, Yoon-Tack
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.839-844
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    • 2003
  • This paper presents a method to segment wafer ID marks on poor quality images under uncontrolled lighting conditions of the semiconductor process. The active multiple templates matching method is suggested to search ID areas on wafers and segment them into meaningful regions and it would have been impossible to recognize characters using general OCR algorithms. This active template model is designed by applying a snake model that is used for active contour tracking. Active multiple template model searches character areas and segments them into single characters optimally, tracking each character that can vary in a flexible manner according to string configurations. Applying active multiple templates, the optimization of the snake energy is done using Greedy algorithm, to maximize its efficiency by automatically controlling each template gap. These vary according to the configuration of character string. Experimental results using wafer images from real FA environment are presented.

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An Efficient Local Alignment Algorithm for DNA Sequences including N and X (N과 X를 포함하는 DNA 서열을 위한 효율적인 지역정렬 알고리즘)

  • Kim, Jin-Wook
    • Journal of KIISE:Computing Practices and Letters
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    • v.16 no.3
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    • pp.275-280
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    • 2010
  • A local alignment algorithm finds a substring pair of given two strings where two substrings of the pair are similar to each other. A DNA sequence can consist of not only A, C, G, and T but also N and X where N and X are used when the original bases lose their information for various reasons. In this paper, we present an efficient local alignment algorithm for two DNA sequences including N and X using the affine gap penalty metric. Our algorithm is an extended version of the Kim-Park algorithm and can be extended in case of including other characters which have similar properties to N and X.

Analysis characters of distortion of inclined mechanical face seal (경사진 기계평면시일의 변형거동 특성 해석)

  • 조승현;고영배;김청균
    • Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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    • 2001.11a
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    • pp.341-349
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    • 2001
  • Heat distortion of the non-contacting mechanical face seal is affected by friction heat between primary seal and seal sheet. The fluid or gas in mechanical face seal maintains operating gap, cooling friction heat and lubricates at the face of seal. So we designed face of seal for inclined face. inclined face of seal improves fluid or gas flow at the face of seal and it increases circumferential velocity at outer radius of the seal so temperature of the seal is decreased by low heat transfer coefficient at there. In this paper, inclined face seal are analysed numerically using finite element method for proof improve inclined face seal performance. Angle of the incline face used for FEA is from 50$^{\circ}$to 90$^{\circ}$and for explaining the effects of inclined face in seal, we get temperature, face distortion, and stress in the seal with variable operating gap and rotating speeds. Result of analysis shows that angle of the incline face is 60$^{\circ}$come to good thermal distortion characteristics.

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