Real-Time Case-Based Recognition of Camera-Captured Characters

LanguageJapanese
TypeProceedings of Japanese Conferences
AuthorsMasakazu IWAMURA, Tomohiko TSUJI, Koichi KISE
TitleReal-Time Case-Based Recognition of Camera-Captured Characters
JournalIEICE Technical Report
Vol.109
No.418
Presentation numberPRMU2009-222
Pagespp.87-92
ReviewedNot reviewed
DateFebruary 2010
Research fieldsDocument Image Analysis, Pattern recognition
KeyIwamura2010_IEICEPRMU (id=1135)

Abstract

In this paper, in the recognition problem of camera-captured characters, we present how to realize quickand precise recognition using a lot of case examples stored in a database. To be more precise, we introduce our fastand robust approximate nearest neighbor search method, originally designed for speci c object recognition, to ourreal-time camera-based character recognition method. In the experiments using a database storing 100 fonts, wecon rmed that the proposed method achieved high performance in both recognition rate and processing time.

Note

PRMUの原稿に誤りがあったため、訂正版を置いてあります。下記が大きな修正点です.
  • 図12(a)
    従来手法の認識率が間違っていて,本来の値より12%くらい低くなっていた.そのため,提案手法で上昇した認識率は約20%から約8%になった.
  • 3節の2段落目
    提案した3つの方策のうち,1番目のものの閾値の設定方法が間違っていた.
  • 図9
    図中の「生成された二値ベクトル」が5本になっていたが,正しくは3本だった.

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