A main orientation is assigned to a keypoint, and the local gradient pattern with respect to the main orientation is computed as its descriptor.
The article takes organizational learning as its main orientation and presents important concepts such as "reflective action", "learning by doing", "mental maps", the "experiential learning cycle" and the "5 disciplines of the learning organization".
The enormous Liverpool project went through several versions: the schemes were widely published, and influenced the design of other civic centres; they contained an early example of the glazed atrium, used not only as a main entrance and orientation device but as the principal expression of civic pride.
We determined the position of each population with a GPS, counted the number of cushions, noted whether it occurred on a rock face, a scree or a stone wall, and estimated its main orientation as the absolute deviation from north in degrees.
The following study aim is to analyse the parameters affecting the alignment of hooked-end steel fibres (HSF) in fluid matrices with Yield Stress (τo), using homogeneous magnetic fields as a main source to modify their orientation.
Therefore, the ratio δ of the two main peaks varying with lattice angles means δ can be used as a main factor to determine lattice orientations.
This was achieved through studying the response of modal testing with different specimens of different lamina orientations as a main factor affecting fatigue life.
The main orientation of a keypoint accounts for the local geometric view difference with rotation.
Meanwhile, the histogram, with the peak 80% greater than main orientation, is selected as auxiliary orientation, thus improving match robustness.
