The measured points are usually not uniformly distributed over the surface as the object is seen from a particular viewpoint; additionally this non-uniformity can be the result of heterogeneous textures over the object surface, when using stereo-vision algorithms based on robust feature-point matching.
Pancreatic graft (arrow) shows normal size but with heterogeneous texture of the parenchyma.
Of 4 tumors with heterogeneous texture, 3 (cases 6, 8, and 10) had separations that were hypointense signal on pre-contrast T2WI and without enhancement on contrast-enhanced T1WI, and 1 (case 5) had central necrosis.
However, problems using these materials arise from its brittleness behavior, which are related to its very heterogeneous texture, showing high volume of pre-existing cracks.
The standard deviation was chosen as oriented statistical feature because it can reflect the high difference of homogeneity seen in the dead heads (heterogeneous texture) in contrast with the alive ones (homogeneous texture).
They are characterized by their appearance as rounded areas of increased attenuation, and a homogeneous or heterogeneous texture.
Results: In 8 patients (7 with penetrating wounds and 1 with blunt trauma) US showed diffuse heterogeneous texture, contour irregularity and disruption of the tunica albuginea.
The most reliable variable seems to be the evaluation of nodal morphology, such as roundness, irregular border or heterogeneous texture.
In a study of 54 patients with non-small-cell lung cancer (NSCLC) undergoing PET-CT staging, a heterogeneous texture on the non-contrast-enhanced CT component of the PET-CT was a predictor of poorer survival; in particular, patients with coarse texture uniformity <0.624 did not survive more than 2.5 years [44].
Being highly viscous, rhyolite lavas often show heterogeneous texture, unlike andesitic and basaltic lavas.
Heterogeneous texture on computed tomography (CT) and magnetic resonance imaging (MRI) is usually noted because of the presence of internal hemorrhage, necrosis and calcification.
