Patent ID: 11954863
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. The image segmentation apparatus of claim 18, wherein the upsampling stage and the downsampling stage are symmetric to each other, the upsampling stage comprises several third dense block layers and several second basic network layers connected sequentially, and the second basic network layer comprises an upsampling layer and a fourth dense block layer connected sequentially, and wherein inputting the key features to the upsampling stage of the segmentation network and performing multi-scale feature fusion to obtain the feature map comprises:
inputting the key features to the upsampling stage of the segmentation network, and performing deconvolution by using the several third dense block layers, to obtain first scale features, to input the first scale features to first several second basic network layers;
performing, in the first several second basic network layers, feature fusion of fourth dense block layers in the first several second basic network layers and second dense block layers in several of the first basic network layers that are symmetric to each other;
performing, in a last second basic network layer by using an upsampling layer in the last second basic network layer, upsampling on features outputted after the fusion in the first several second basic network layers, to obtain second scale features;
obtaining features outputted after convolution of the second dense block layers in the several first basic network layers, and using the obtained features as third scale features; and
performing fusion on the first scale features, the second scale features, and the third scale features by using a fourth dense block layer in the last second basic network layer, and performing deconvolution, to obtain a feature map corresponding to the input image.