Active acquisition of character information by a controllable video camera

可控摄像机主动采集人物信息

基本信息

批准号：
16500096
负责人：
OMACHI Shinichiro
金额：
$ 2.3万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16500096/
关键词：
Pattern recognition Computer vision Character recognition Video camera Mosaicing Super resolution Environment recognition Robot vision コンピュータビション

项目摘要

The aim of this research is to develop a method of actively acquiring character information in scene images with a video camera that is controllable by a computer. Detection methods of the area where characters exist and accurate recognition method of the character images were investigated. An object recognition method in the image was also investigated. The main results of this research are as follows.1.Character recognition in scene imagesIt is difficult to extract the area where the character string exists in a scene image because of low resolution, changing in the lighting condition, etc. An algorithm for precise character extraction using color and luminance information is proposed. Moreover, a method for detecting and recognizing an isolated character is also investigated.2.Object recognition in scene imagesA method for recognizing objects in a scene image at high speed was investigated. The color histogram has been reported to be robust to the change and occlusion of the object compared with the other features. The proposed method achieves quick object detection by constructing color histograms efficiently. A technique for identifying a silhouette by representing the silhouette by a hierarchical graph was also investigated. Moreover, a novel approach of a template matching by representing an object image by a function was also investigated.

这项研究的目的是开发一种用计算机可控的摄像机在场景图像中积极获取角色信息的方法。研究了存在字符的区域的检测方法，并研究了字符图像的准确识别方法。还研究了图像中的对象识别方法。这项研究的主要结果如下。1。场景图像中的字符识别很难提取字符串在场景图像中存在的区域，因为分辨率较低，在照明条件下发生变化等。提出了一种用于使用颜色和亮度信息的精确字符提取的算法。此外，还研究了一种用于检测和识别孤立字符的方法。2。在Scene Imagesa中的对象识别方法是在高速下以高速识别场景图像中对象的方法。据报道，与其他特征相比，颜色直方图对物体的变化和遮挡是可靠的。提出的方法通过有效构造颜色直方图来实现快速对象检测。还研究了一种通过层次图代表轮廓来识别轮廓的技术。此外，还研究了通过函数代表对象图像来匹配模板的新方法。

项目成果

期刊论文数量（140）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Screen pattern removal for character pattern extraction from high-resolution color document images

DOI：
10.1109/icpr.2004.1334173
发表时间：
2004-01-01
期刊：
PROCEEDINGS OF THE 17TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOL 1
影响因子：
0
作者：
Goto, H;Aso, H
通讯作者：
Aso, H

カメラによる文字認識のためのカテゴリー情報の埋込に関する検討

使用相机进行字符识别的嵌入类别信息的研究