Vertical Size Disparity and the Correction of Stereo Correspondence

Perception ◽  
10.1068/p7387 ◽  
2013 ◽  
Vol 42 (4) ◽  
pp. 385-400 ◽  
Author(s):  
Hiroyuki Mitsudo ◽  
Ayumi Sakai ◽  
Hirohiko Kaneko
Keyword(s):  
Stereo Correspondence ◽  
Size Disparity ◽  
Vertical Size

scholarly journals Spatial limitation of vertical-size disparity processing

1997 ◽  
Vol 37 (20) ◽  
pp. 2871-2878 ◽  
Author(s):  
Hirohiko Kaneko ◽  
Ian Howard
Keyword(s):  
Size Disparity ◽  
Vertical Size ◽  
Spatial Limitation

scholarly journals Vertical size disparity pooling across attended color and contrast

2015 ◽  
Vol 15 (12) ◽  
pp. 833
Author(s):  
Benjamin Backus ◽  
Baptiste Caziot
Keyword(s):  
Size Disparity ◽  
Vertical Size

Types of Size Disparity and the Perception of Surface Slant

Perception ◽  
1997 ◽  
Vol 26 (12) ◽  
pp. 1503-1517 ◽  
Author(s):  
Byron J Pierce ◽  
Ian P Howard
Keyword(s):  
Vertical Axis ◽  
Textured Surface ◽  
Curved Boundary ◽  
Surface Slant ◽  
Size Disparity ◽  
Horizontal Size ◽  
Depth Contrast ◽  
Depth Enhancement ◽  
Vertical Size

We examined (i) perceived slant of a textured surface about a vertical axis as a function of disparity magnitude for horizontal-size disparity, vertical-size disparity, and overall-size disparity; and (ii) interactions between patterns with various types and magnitudes of size disparity and superimposed or adjacent zero-disparity stimuli. Horizontal-size disparity produced slant which increased with increasing disparity, was enhanced by superimposed zero-disparity stimuli, and induced contrasting slant in superimposed or adjacent zero-disparity stimuli. Vertical-size disparity produced opposite slant (induced effect) which was reduced to near zero by a superimposed zero-disparity pattern and both patterns appeared as one surface. Adjacent vertical-size-disparity and zero-disparity patterns appeared as separate surfaces with a wide curved boundary. Overall-size disparity produced slant which was enhanced by a superimposed zero-disparity pattern and less so by a zero-disparity line, and induced more slant in a zero-disparity line than in a zero-disparity pattern. The results are discussed in terms of depth underestimation of isolated surfaces, depth enhancement, depth contrast, and the processing of deformation disparity.

Depth Interactions between Inclined and Slanted Surfaces in Vertical and Horizontal Orientations

Perception ◽  
1998 ◽  
Vol 27 (1) ◽  
pp. 87-103 ◽  
Author(s):  
Byron J Pierce ◽  
Ian P Howard ◽  
Catina Feresin
Keyword(s):  
Vertical Shear ◽  
Test Surface ◽  
Horizontal Shear ◽  
Frontal Surface ◽  
Horizontal Orientation ◽  
Size Disparity ◽  
Horizontal Size ◽  
Depth Contrast ◽  
Effects Of Rotation ◽  
Vertical Size

Depth interactions between a frontal test surface and an adjacent induction surface were measured as a function of the type of disparity in the induction surface and of the vertical/horizontal orientation of the boundary between the surfaces. The types of disparity were 4° horizontal-shear disparity, 4° vertical-shear disparity, and 4° rotation disparity; 4% horizontal-size disparity, 4% vertical-size disparity, and 4% overall-size disparity. Depth contrast in a frontal surface was produced by surfaces containing horizontal-size disparity but not by those containing horizontal-shear disparity. Vertical-shear and vertical-size disparities produced induced effects in both the induction and the test surface, which is here explained in terms of deformation-disparity processing. Effects of rotation disparity on the test surface can be accounted for in terms of cyclovergence, deformation disparity, and perhaps also depth contrast. The fact that horizontal-size disparity produced more depth contrast than horizontal-shear disparity is due to an anisotropy of disparity processing rather than the relative orientation of the surfaces. Ground surfaces appeared more slanted than ceiling surfaces. Surfaces containing horizontal disparities produced a sharp boundary with the test surface because horizontal disparities are processed locally. Surfaces with vertical disparities produced a gradual boundary with the test surface because vertical disparities are processed over a wider area.

scholarly journals Vertical size disparity induces enhanced neural responses in good stereo observers

2019 ◽  
Vol 164 ◽  
pp. 24-33
Author(s):  
Hiroyuki Mitsudo ◽  
Naruhito Hironaga ◽  
Katsuya Ogata ◽  
Shozo Tobimatsu
Keyword(s):  
Neural Responses ◽  
Size Disparity ◽  
Vertical Size

scholarly journals Temporal integration of vertical-size disparity for slant perception

2010 ◽  
Vol 3 (12) ◽  
pp. 74-74
Author(s):  
K. Fukuda ◽  
H. Kaneko ◽  
K. Matsumiya
Keyword(s):  
Temporal Integration ◽  
Slant Perception ◽  
Size Disparity ◽  
Vertical Size

scholarly journals Temporal Pooling of Vertical Size Disparity for Slant Perception

2010 ◽  
Vol 3 (9) ◽  
pp. 458-458
Author(s):  
K. Fukuda ◽  
K. Matsumiya ◽  
H. Kaneko
Keyword(s):  
Slant Perception ◽  
Size Disparity ◽  
Vertical Size

Comparative assessment of average clinical smile parameters in male and female patients with orthognathic occlusion

2020 ◽  
Vol 25 (2) ◽  
pp. 121-126
Author(s):  
V. G. Galonsky ◽  
N. V. Tarasova ◽  
V. V. Aliamovskii ◽  
I. S. Leonovich
Keyword(s):  
Sexual Dimorphism ◽  
Male And Female ◽  
Young Males ◽  
Young Females ◽  
Female Patients ◽  
Evaluation Of Parameters ◽  
Distinguishing Features ◽  
Vertical Size ◽  
Relative Concept ◽  
The Ideal

Relevance. Separate issues in anthropomorphic sizes of relative norm of the ideal smile, its qualitative and qualitative parameters have not been addressed to sufficiently and are not properly reflected in scientific literature.Purpose. To determine distinguishing features in average smile parameters of the smile in male and female patients with orthognathic occlusion.Materials and methods. A clinical and anthropometric evaluation of parameters in main smile types was carried out for 150 young males and 150 young females aged 19-24 who had identical physiological development parameters.Results. It has been revealed that occurrence frequency of main smile types in patients with orthognathic occlusion has pronounced signs of sexual dimorphism which in over one half of the cases lies in predominance of the incisal smile type in males (52.7%) and the fascial type in females (55.3%). Occurence frequency of the cervical smile type totaled 25% among the studied patients of both genders. Average vertical size parameters in the incisal smile lies within the diapason of 3.91-4.91mm with surpassing by 1mm in males. Analogical data for the fascial smile type form the diapason of 6.21-6.73mm with surpassing by 0.52mm in females. The cervical smile type is characterised by larger vertical size forming the diapason of 7.94-8.91mm with surpassing by 0.97mm in males.Conclusion. The results of the study have shown that the “beautiful and ideal smile” is a relative concept having varied anthropometric characteristics and pronounced signs of sexual dimorphism lying in a broad spectrum of the dentofacial system norm notion with specific vectors for individual morphological deviations.

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