IGS Combined and Contributed Earth Rotation Parameter Solutions

Time Measurement and Earth Rotation

Earth Rotation Variations – Long Period

3.11.

The earth dynamic system: the earth rotation vs mantle convection

The earth dynamic system is one of the key scientific questions on the earth science. The thermodynamic behavior and gravity force of the earth and the rheology nature of the mantle prove that mantle convection is the main power source leading the lithosphere to break and move. Yet the directivity of both the structures in the crust and plate movement reminds of the earth rotation. Here we demo...

Robust Boosted Parameter Based Combined Classifier for Rotation Invariant Texture Classification

Texture analysis and classification remain as one of the biggest challenges for the field of computer vision and pattern recognition. This article presents a robust hybrid combination technique to build a combined classifier that is able to tackle the problem of classification of rotation-invariant 2D textures. Diversity in the components of the combined classifier is enforced through variation...

Combined Invariants to Linear Filtering and Rotation

In the above model, h(x, y) is the point-spread function (PSF) of the system, n(x, y) is an additive random noise, a is a constant describing the overall change of contrast, τ stands for a transform of spatial coordinates due to projective imaging geometry and ∗ denotes 2D convolution. In many application areas, it is desirable to find a description of the original scene that does not depend on...