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Paper details
Number 1 - March 2021
Volume 31 - 2021
A single upper limb pose estimation method based on the improved stacked hourglass network
Gang Peng, Yuezhi Zheng, Jianfeng Li, Jin Yang
Abstract
At present, most high-accuracy single-person pose estimation methods have high computational complexity and insufficient
real-time performance due to the complex structure of the network model. However, a single-person pose estimation method
with high real-time performance also needs to improve its accuracy due to the simple structure of the network model. It
is currently difficult to achieve both high accuracy and real-time performance in single-person pose estimation. For use
in human–machine cooperative operations, this paper proposes a single-person upper limb pose estimation method based
on an end-to-end approach for accurate and real-time limb pose estimation. Using the stacked hourglass network model, a
single-person upper limb skeleton key point detection model is designed. A deconvolution layer is employed to replace the
up-sampling operation of the hourglass module in the original model, solving the problem of rough feature maps. Integral
regression is used to calculate the position coordinates of key points of the skeleton, reducing quantization errors and
calculations. Experiments show that the developed single-person upper limb skeleton key point detection model achieves
high accuracy and that the pose estimation method based on the end-to-end approach provides high accuracy and real-time
performance.
Keywords
convolutional neural network, stacked hourglass network, skeleton key point, single upper limb pose estimation, human–machine coordination