一种改进的双U型网络的结肠息肉分割方法

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针对结肠息肉图像中息肉颜色与背景颜色相似、息肉大小不一等影响分割效果的问题,提出了一种改进的双U型结构的结肠息肉图像分割网络。所提模型以DoubleU-Net为基础架构,首先,在U型结构的跳跃连接处融入空间注意力机制以提取空间特征的相关性信息;其次,在跳跃连接处同时并入通道注意力机制以有效地表达有用通道的依赖性,抑制与息肉分割任务无关的特征;最后,在第二个U型结构编码器的输入端引入多尺度选择核心通道注意力模块,以自适应地选择不同的感受野、提高目标的分割精度。实验结果表明,所提出的方法无论从客观指标还
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