摘要
针对传统视觉注意模型在遥感影像视觉显著区域检测中存在的计算复杂度高、检测精度低等缺点,提出了一种新的视觉显著区域快速检测算法。首先利用整数小波变换降低遥感影像的空间分辨率,从而降低视觉注意焦点检测的计算复杂度;然后在视觉特征融合中引入二维离散矩变换,生成边缘与纹理信息更为丰富的遥感影像显著图;最后在显著图分析中提出区域增长策略来获得视觉显著区域的精确轮廓。实验结果表明,新算法不仅有效降低了遥感影像视觉显著区域检测的计算复杂度,而且能够精确描述视觉显著区域的轮廓信息,同时避免了对整幅遥感影像的分割与特征提取,为今后的遥感影像目标检测提供了一定地参考价值。
The traditional visual attention model for the detection of visual saliency regions in the remote sensing image can lead to high computational complexity and low precision of detection. A new fast detection algorithm of visual saliency regions is proposed. The new algorithm firstly decreases the spatial resolution by integer wavelet transform, which can reduce the computational complexity of detection of the visual focus of attention. Then, the new algorithm proposes the two-dimensional discrete moment transform for visual feature fusion, which can generate the saliency map of the remote sensing image which has more abundant information of edge and texture. Finally, the region growing strategy based on the visual focus of attention is proposed in the saliency map analysis to acquire the precise contours of the visual saliency regions. The experimental results show that the new algorithm can not only effectively reduce the computational complexity of the detection of visual saliency regions in the remote sensing image, but also be able to accurately describe the contour information of visual saliency regions. In addition, it can avoid image segmentation and feature extraction for the whole image. The new algorithm provides a certain reference for the target detection of the remote sensing image in the future.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2012年第11期205-211,共7页
Chinese Journal of Lasers
基金
国家自然科学基金(60602035
61071103)
中国科学院遥感应用研究所
北京师范大学遥感科学国家重点实验室开放基金(OFSLRSS201001)资助课题
关键词
图像处理
遥感影像处理
视觉显著区域
整数小波变换
离散矩变换
区域增长
image processing
remote sensing image processing
visual saliency region
integer wavelet transform
discrete moment transform
region growing
