A method for sharing offset between convolutional neurons by a lightweight deformable module belongs to the technical field of
deep learning, and comprises the following steps: S1, designing a lightweight deformable module TDCN: introducing an offset field representation method, reducing the channel dimension of an offset domain from 2N to 2, N being the number of sampling points, no matter how large a
convolution kernel is selected, and the channel dimension of the offset domain is reduced from 2N to 2N, and no matter how large the
convolution kernel is selected, the channel dimension of the offset domain is reduced from 2N to 2N; the channel number of the offset domain is always 2; sharing offset through adjacent
convolution operations, so that neurons of the convolution operations learn a proper offset, and establishing association between the neurons; s2, the TDCN is integrated into a Convnet
system, and various different backbone networks are used; s3, the TDCN is integrated into the Faster R-CNN
system, and various different backbone networks are used; and S4, the TDCN is integrated into the RetinaNet
system, and various different backbone networks are used. According to the method, the problem of traditional deformable convolution is solved, meanwhile, the capacity of adaptively adjusting the convolution kernel to adapt to the geometric change of the object is reserved, and wider applicability is obtained.