多尺度特征与知识图谱融合的景区手写诗词识别

    Scenic Handwritten Poetry Recognition Based on Fusion of Multi-scale Features and Knowledge Graph

    • 摘要: 针对景区手写诗词存在背景纹理复杂、字体尺寸及风格多样等特点导致景区游客难以识别手写诗词的问题,首先,分析研究景区手写诗词的识别场景,设计景区诗词检测网络(detection of poetry in scenic areas-network,DPSA-Net)以提取景区手写诗词不同尺度的特征,并结合手写诗词字符间的链接依赖关系实现景区手写诗词检测;其次,设计了卷积循环聚合网络(convolution recurrent aggregation network,CRA-Net)以对景区手写诗词进行识别,结合卷积神经网络(convolutional neural networks,CNN)和双向长短期记忆网络提取手写诗词图像的序列特征,并通过聚合交叉熵(aggregation cross-entropy,ACE)实现特征向文本的转换;最后,结合景区知识图谱对CRA-Net的输出进行校正,进而提高景区手写诗词的识别准确率。实验结果表明,通过景区手写诗词矫正技术对CRA-Net的识别结果矫正后,识别准确率达到了79.04%,同时,该技术具有较好的抗干扰能力和良好的应用前景。

       

      Abstract: Handwritten poetry in scenic areas has complex background texture, diverse font size and style, which makes it difficult for tourists in scenic areas to recognize handwritten poetry. Therefore, the recognition scene of handwritten poetry in scenic areas was first analyzed and studied, the detection of poetry in scenic areas-network (DPSA-Net) was designed to extract the characteristics of handwritten poetry in scenic areas at different scales, and the handwritten poetry detection in scenic areas combined with the link dependency between handwritten poetry characters was realized. Second, a convolution recurrent aggregation network (CRA-Net) was designed to recognize handwritten poetry in scenic areas, which combines convolutional neural networks (CNN) and bi-directional long short-term memory network to extract sequence features of handwritten poetry images, and the transformation from features to text by aggregation cross-entropy (ACE) was realized. Finally, combining the scenic areas knowledge graph, the output of CRA-Net was corrected, so as to improve the recognition accuracy of handwritten poetry in scenic areas. Results show that after correcting the recognition results of CRA-Net by handwritten poetry correction technology in scenic areas, the recognition accuracy reaches 79.04%. At the same time, this technology has good anti-interference ability and good application prospect.

       

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