Singh, M., Seyranian, G., & Hoffman, D. D. (in press). Parsing silhouettes: The short-cut rule. Perception and Psychophysics. Takeichi, H., Nakazawa, H., Murakami, I., & Shimojo, S. (1995). The theory of the curvature-constraint line for amodal completion. Perception, 24, 373--389.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....curvature boundary. On the other hand, in Fig. 4(b) no clear minima rule boundary is present. As a result, our algorithm leaves the object unsegmented. This result, however, is not a failure of our algorithm, but rather an ambiguity in the minima rule theory. This ambiguity is discussed in [14]. We next consider the threshold operation and selection of # in Eq. 3) Fig. 5 illustrates why t 0 is not necessarily practical. This figure is a bin plot of the negative principal curvatures for the mug from Fig. 2. The x axis of this plot denotes the bins of negative curvature. The y axis ....

M. Singh, G. D. Seyranian, and D. D. Hoffman. Parsing silhouettes: the short-cut rule. Perception and Psychophysics, 61(4):636--660, 1999.

....to introduce more constraints to achieve unique and natural shape decomposition. Singh et al. noted that when boundary points can be joined in more than one way to decompose a silhouette, human vision prefers the partitioning scheme which uses the shortest cuts. This leads to the short cut rule [52] which requires a cut (1) be a straight line, 2) cross an axis of local symmetry, 3) join two points on the outline of a silhouette, such that at least one of the two points has negative curvature, 4) be the shortest one if there are several possible competing cuts. Because only one end of a ....

M. Singh, G. D. Seyranian, D. D. Hoffman, "Parsing Silhouettes: the Short-Cut Rule," Perception and Psychophysics, Vol. 61, No. 4, pp. 636-660, May 1999.

....salien0 values for parts. Forn ecks these were defin6 as the product of the curvature disparity across then eck a n the len th of the part boun) rylinJ A limb s salienK was a funK)3 n of the total curvature curvature across the limb a n the exten t of limb across the partlin9 Recen tly,Sin6 et al. [16] criticised Siddiqi an d Kimia s scheme,n otin that the defin ition s for limbsan dn ecks were too restrictive, an d failed for a large class of shapes. They proposed an altern tive method to partition shapes: the short cut rule. Theirdefin(6J n of a partlin0 which they term a cut, is: 1. a ....

M. Singh, G.D. Seyranian, and D.D. Ho#man. Parsing silhouettes: the short-cut rule. Perception and Psychophysics.

....values for parts. For necks these were defined as the product of the curvature disparity across the neckand the length of the part boundary line. A limb s salience was a function of the total curvature curvature across the limb and the extentoflimb across the part line. Recently,Singhet al... [16] criticised Siddiqi and Kimia s scheme, noting that the definitions for limbs and necks were too restrictive, and failed for a large class of shapes. They proposed an alternative method to partition shapes: the short cut rule. Their definition of a part line, which they term a cut, is: 1. a ....

M. Singh, G.D. Seyranian, and D.D. Hoffman. Parsing silhouettes: the short-cut rule. Perception and Psychophysics. BMVC99 642

....them. However, the minima rule does not define the part cuts themselves it only constrains them to pass through the boundary points it provides. There are many perceptual constraints beyond the minima rule that affect one s parsing preference [18] Part salience [8] and the short cut rule [19] were proposed to embody those constraints. Hoffman and Singh[8] isolated three factors affecting part salience: relative area, amount of protrusion, and normalized curvature across the part boundary. However, they do not integrate these into a shape partitioning scheme. The short cut rule [19] is ....

....[19] were proposed to embody those constraints. Hoffman and Singh[8] isolated three factors affecting part salience: relative area, amount of protrusion, and normalized curvature across the part boundary. However, they do not integrate these into a shape partitioning scheme. The short cut rule [19] is simple: divide silhouettes into parts using the shortest possible cuts. Namely, if boundary points can be joined in more than one way to parse a silhouette, human vision prefers the parsing which uses the shortest cuts. Thus, a cut is defined to be (1) a line which (2) crosses an axis of local ....

[Article contains additional citation context not shown here]

M. Singh, G. D. Seyranian, and D. D. Hoffman. Parsing silhouettes: The short-cut rule. Perception and Psy., 61(4):636--660, 1999.

No context found.

Singh, M., Seyranian, G., & Hoffman, D. D. (in press). Parsing silhouettes: The short-cut rule. Perception and Psychophysics. Takeichi, H., Nakazawa, H., Murakami, I., & Shimojo, S. (1995). The theory of the curvature-constraint line for amodal completion. Perception, 24, 373--389.

No context found.

Singh, M., Seyranian, G. D., & Hoffman, D. D. (1999). Parsing silhouettes: the short-cut rule. Perception & Psychophysics, 61, 636 -- 660.

No context found.

Singh, M., Seyranian, G. D., & Hoffman, D. D. (1999). Parsing silhouettes: The short-cut rule. Perception & Psychophysics, 61, 636 -- 660.

No context found.

Singh, M., Seyranian, G. D., & Hoffman, D. D. (1999). Parsing silhouettes: The short-cut rule. Perception & Psychophysics, 61, 636 -- 660.

No context found.

M. Singh, G. D. Seyranian, and D. D. Hoffman. Parsing silhouettes: The short-cut rule. Perception and Psychophysics, 61(4):636--660, 1999.

No context found.

M. Singh, G. D. Seyranian, and D. D. Hoffman. Parsing silhouettes: the short-cut rule. Perception and Psychophysics, 61(4):636--660, 1999.

No context found.

M. Singh, G. D. Seyranian, D. D. Hoffman, "Parsing Silhouettes: the Short-Cut Rule," Perception and Psychophysics, Vol. 61, No. 4, pp. 636-660, May 1999.

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