INTEGRAL PROJECTIONS An integral projection is a onedimensional pattern, or signal, obtained through the sum of a given set of pixels along a given direction. Horizontal and vertical integral projections are most commonly used, although they can be applied on any direction. Let i(x,y)
be an image (greyscale or color) and R(i) a
region in it (i.e., a set of pixels in i(x,y)),
the Vertical Integral Projection of R(i),
denoted by P_{VR(i)}, is a
discrete function: Defined by: The Horizontal
Integral Projection of R(i), denoted by
P_{HR(i)}, is defined in a
similar way: The Integral
Projection Along an Arbitrary Angle a,
denoted by P_{aR(i)}, is
defined as the vertical integral projection of R(i),
after applying to the image a rotation of a.
Projection Models
Rapid Alignment of Integral Projections
Facultad de Informática. Despacho 2.34
