Table of Contents What is Human Pose Estimation? How 3D Human Pose Estimation Works 3D pose estimation performance and accuracy Real-time 3D human pose estimation Human pose estimation use cases AI ?tness and self-coaching Rehabilitation and physiotherapy Augmented reality Animation and gaming Surveillance and human activity analysis How to train a human pose estimation model? How to avoid training human pose estimation from scratch? Human Pose Estimation is a computer vision-based technology that identi?es and classi?es speci?c points on the human body. These points represent our limbs and joints to calculate the angle of ?exion, and estimate, well, human pose. While it sounds awkward, knowing the right angle of a joint in a speci?c exercise is the basis of work for physiotherapists, ?tness trainers, and artists. Implementing such capabilities for a machine results in surprisingly useful applications in di?erent ?elds. In this article we’ll explore human pose estimation in depth. We’ll ?gure out its principle of work and capabilities to understand suitable business cases. Also, we’ll analyze di?erent approaches to Human Pose Estimation as a machine learning technology,