Peng ZHOU, Jian-min YAO, Zhi-xian LIN, et al. Mobile-based portrait segmentation network with attention mechanism[J]. Chinese journal of liquid crystals and displays, 2020, 35(6): 547-554.
DOI:
Peng ZHOU, Jian-min YAO, Zhi-xian LIN, et al. Mobile-based portrait segmentation network with attention mechanism[J]. Chinese journal of liquid crystals and displays, 2020, 35(6): 547-554. DOI: 10.3788/YJYXS20203506.0547.
Mobile-based portrait segmentation network with attention mechanism
Existing mobile terminal segmentation network has problems such as poor segmentation accuracy and segmentation edge blurring. To this end
a lightweight portrait segmentation network that incorporates attention mechanisms is proposed. Firstly
the image features are extracted by MobileNetV2 network. Then
the attention module NLNet (Non-local neural networks) is lightened
and then the optimized attention module is embedded in the four-layer decoding network. The decoding network with attention mechanism adaptively learns the effective features
and finally obtains the portrait segmentation result map through SoftMax. At the same time
the loss function is improved
and Multi-Loss (multi-loss function) is introduced to make the network easier to converge. The way of attention mechanisms fused in decoding networks makes the lightweight network achieve better results in the semantic segmentation task. Experimental results show that the model achieves 92.29% MeanIOU on the 550 self-collected portrait test set
and the split time of the single picture on the Inter(R) Core i5 CPU is 0.74 s. Compared with the traditional portrait segmentation network
the research network has obvious advantages in segmentation precision and segmentation speed
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