计算机应用研究
計算機應用研究
계산궤응용연구
APPLICATION RESEARCH OF COMPUTERS
2013年
3期
957-960
,共4页
张伟伟%汤光明%孙怡峰%李晓利
張偉偉%湯光明%孫怡峰%李曉利
장위위%탕광명%손이봉%리효리
可变部件模型%汉字识别%隐支持向量机%高斯金字塔模型%滑动窗口%HOG描述子
可變部件模型%漢字識彆%隱支持嚮量機%高斯金字塔模型%滑動窗口%HOG描述子
가변부건모형%한자식별%은지지향량궤%고사금자탑모형%활동창구%HOG묘술자
DPM(deformable part model)%Chinese characters recognition%LSVM%Gaussian pyramid%sliding window%HOG descriptor
自然场景下, 汉字背景复杂且形态各异, 导致传统识别方法中的文本定位与文本矫正过程难以进行。为了避免这些问题, 采用物体识别方法中的可变部件模型(DPM)进行识别。该方法将汉字视为物体类, 训练其对应的参数模板, 然后采用滑动窗口的方法遍历待检测图片, 以判断图片中是否存在目标汉字。实验表明, 该方法对简单独体汉字有较好的检测效果, 但对于多笔画复杂汉字, 由于模型自身结构特点, 效果并不明显。
自然場景下, 漢字揹景複雜且形態各異, 導緻傳統識彆方法中的文本定位與文本矯正過程難以進行。為瞭避免這些問題, 採用物體識彆方法中的可變部件模型(DPM)進行識彆。該方法將漢字視為物體類, 訓練其對應的參數模闆, 然後採用滑動窗口的方法遍歷待檢測圖片, 以判斷圖片中是否存在目標漢字。實驗錶明, 該方法對簡單獨體漢字有較好的檢測效果, 但對于多筆畫複雜漢字, 由于模型自身結構特點, 效果併不明顯。
자연장경하, 한자배경복잡차형태각이, 도치전통식별방법중적문본정위여문본교정과정난이진행。위료피면저사문제, 채용물체식별방법중적가변부건모형(DPM)진행식별。해방법장한자시위물체류, 훈련기대응적삼수모판, 연후채용활동창구적방법편력대검측도편, 이판단도편중시부존재목표한자。실험표명, 해방법대간단독체한자유교호적검측효과, 단대우다필화복잡한자, 유우모형자신결구특점, 효과병불명현。
Chinese characters take on variable appearances in natural scenes, that makes some inevitable procedures in traditional detecting methods hard to carry on, such as the text location and text modification. In order to avoid such difficulties, this paper used DPM to detect Chinese characters in natural scenes. The method treated each character as an object class and trained the corresponding template. By using sliding windows, it traversed the detecting image to judge whether the image contained the target character. Experimental results show that the detecting effects of sole characters are satisfying and robust. As for the multi-stroke-characters, the effects aren't so obvious owing to the model's structural features.