Every value corresponds to one of the conditions such as age, gender, illumination, and expression.
It is to be noted that within-class variabilities of the moments occur due to the variations of faces in terms of appearance, expressions, pose, age, resolution, illumination, and occlusion on which the classification parameter β depends.
By contrast, computers struggle with what researchers call the problem of A-PIE: aging, pose, illumination, and expression.
Secondly, the pixels of different images of the same person may vary widely due to variations in expression, pose, viewing angle, illumination, and age, while the pixels of different persons may not vary significantly [5 7].
b Mean noise threshold by age group and illumination condition, showing no effect of age group and no difference by illumination condition.
a Mean blur threshold by age group and illumination condition, showing a significant difference by age group but no difference by illumination condition.
The early 14th century was an impressive age for manuscript illumination in England, with the so-called East Anglian school, of which the celebrated Luttrell Psalter represents a late example.
The SCID global assessment of functioning scale was not significantly impacted by ethnicity, with covariates of age, education, and illumination exposure in the model.
Analyses of covariance (ANCOVA) were used to determine the influence of ethnicity (5 levels) as a fixed factor, as well as various covariates, especially age, education, and illumination.
Testing the ethnicity effect on sleep duration in ANCOVA controlled for age, education, and illumination, adjusting for ODI4 reduced by 26% the sum of squares explained by ethnicity (p < 0.001).
In an age before widespread light pollution, the illumination of the moon and the stars was far more useful (on a clear night, starlight alone cast shadows).
