A human-pose demonstration does not automatically identify a toy character's facial landmarks. The project first needs a consistent definition of the points that matter.
Ultralytics describes pose estimation as identifying specified keypoints and their image locations. Ultralytics — pose.
Define each landmark
For a character study, distinguish the centre of an embroidered eye from the edge of its stitched outline. State how hidden or absent landmarks are represented. Mixing these conventions changes what the model learns.
Keep coordinates in context
A landmark location in a photograph depends on view and scale. Compare like views or use an appropriate normalisation method. A tidy point overlay does not prove that the assembled product matches its three-dimensional design requirements.
Source reviewed 25 October 2026. Interpretation and original diagrams: PLUSHIP / Qunhe. Examples are illustrative.
Related reading
A Missing-Data Indicator Can Carry Information of Its Own
A Pipeline Keeps Learned Preprocessing With the Model