Image feature descriptor and its real-time applications presents on a fundamental computer vision challenge: feature description and matching. It includes the development of two novel feature descriptors, PRO and SYBA; an affine adaptation process; and improvements in real-time computer vision algorithms using the SYBA descriptor. The text is presented in such way that allows all concepts to be easily understood. This provides the reader with both a hardware-friendly feature description and feature matching algorithm which suitable for embedded vision applications.