Invariant fitting of planar objects by primitives

Sagittal otolith shape used in the identification of fishes of the genus Serranus

“…1-3) by using the OPTIMAS (version 6.2) image analysis system as well as several programs developed in-house (and not commercialized). These descriptors were calculated using the following equation (Proffitt, 1982; Flusser and Suk, 1993;Voss and Süße, 1997;Sonka et al, 1998;Rosin, 1999Rosin, , 2003Rosin, , 2005Bowman et al, 2001;Žunic and Rosin, 2004): …”

On the choice of consistent canonical form during moment normalization

“…where A ¼ a 11 a 12 a 21 a 22 is called the homogeneous affine transformation matrix (Rothe et al, 1996;Voss and Suesse, 1997). Since the translation can be overcome by using the central moments, only the homogeneous affine transform is considered in the studies of moment normalization.…”

“…In (Shen and Ip, 1997), a generalized image normalization method was proposed to handle shaped planar images. The normalization of curve, shape, or gray-level planar images are discussed in references (Pei and Lin, 1995;Rothe et al, 1996;Voss and Suesse, 1997). Recently, Zhang et al proposed a normalization method for constructing moment invariants against both blur and affine transforms (Zhang et al, 2002).…”

“…In some moment based normalization methods (Rothe et al, 1996;Voss and Suesse, 1997;Zhang et al, 2002), there do exist more than one canonical form due to inherent ambiguities. This gives rise to the non-consistence of the canonical form.…”

Texture Analysis by Accurate Identification of Simple Markovian Models

“…Assuming that nonoverlapping texels are conditionally independent, a compact bounding parallelogram around the characteristic interaction structure derived from the MBIM serves as a cell of a simple placement grid of equidistant guiding lines that form sides of each cell. The parallelogram that is found by a modified algorithm in [32] specifies orientation angles a x and a y of the guiding lines with respect to the image coordinate axes ( , )…”