We propose a novel ConvNet model for predicting 2D human body poses in an
image. The model regresses a heatmap representation for each body keypoint, and
is able to learn and represent both the part appearances and the context of the
part configuration. We make the following three contributions: (i) an
architecture combining a feed forward module with a recurrent module, where the
recurrent module can be run iteratively to improve the performance, (ii) the
model can be trained end-to-end and from scratch, with auxiliary losses
incorporated to improve performance, (iii) we investigate whether keypoint
visibility can also be predicted. The model is evaluated on two benchmark
datasets. The result is a simple architecture that achieves performance on par
with the state of the art, but without the complexity of a graphical model
stage (or layers).

本文提出了一种新颖的 ConvNet 模型，可预测图像中的 2D 人体姿势，通过回归每个关键点的热度图表示，并能够学习和表示部件外观和配置上下文。模型可以从头开始和端到端训练，用于改善性能的辅助损失。该模型在两个基准数据集上进行了评估，具有与最先进技术相当的性能，但不含有图形模型阶段（或层）的复杂性。