Building Computer Vision Projects with OpenCV 4 and C++

Regression methods

In contrast, regression methods employ a more simplistic, but powerful approach. These methods use machine learning, by way of regression, an update step to an initial positioning of the landmarks and iterate until the positions converge, where  is the shape at time t, and  is the result of running the regressor r on the image I and the current shape, demonstrated as follows:

 By cascading these update operations, the final ...