نتایج جستجو برای: surface color

تعداد نتایج: 747668  

2002
Michael D'Zmura

Received September 5, 1991; revised manuscript received October 30, 1991; accepted November 13, 1991 Viewing the lights reflected by a set of three or more surfaces, a trichromatic visual system can recover three color-constant descriptors of reflectance per surface if the color of the surfaces' illuminant changes. This holds true for a broad range of models that relate photoreceptor, surface, ...

Aiob Pahlavan, Hoda Safaee, Mansoreh Mirzaie, Reihaneh Khalesi Tooyrekani, Tabassom Hooshmand,

Background and Aim: Color match between prosthetic restorations and natural teeth is challenging in dentistry. The aim of the current study was to assess the effect of accelerated aging on color stability of two silica-based ceramics with leucite and lithium disilicate crystalline phases after glazing and polishing surface treatments. Materials and Methods: In this experimental study, 30 disc-...

Journal: :desert 2006
h. r. matinfar s. k. alavipanah f. sarmadian

this study determined some spectral characteristics and relationship between landsat spectral reflectance and soil surface color in the arid region of iran (kashan). the study carried out in the kashan area that covers 90000 ha. consisting of mountain, hills and flood plain. enhanced thematic mapper (etm+) data collected on july 2002 were used for this research. the color composite images produ...

Journal: :Computers & Graphics 2016
Shuai Lin Yu-Kun Lai Ralph R. Martin Shiyao Jin Zhi-Quan Cheng

Shape registration is fundamental to 3D object acquisition; it is used to fuse scans from multiple views. Existing algorithms mainly utilize geometric information to determine alignment, but this typically results in noticeable misalignment of textures (i.e. surface colors) when using RGB-depth cameras. We address this problem using a novel approach to color-aware registration, which takes both...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1990

Journal: Desert 2006
F. Sarmadian H. Matinfar, S. Alavipanah

This study determined some spectral characteristics and relationship between Landsat spectral reflectance and soil surface color in the arid region of Iran (Kashan). The study carried out in the kashan area that covers 90000 ha. Consisting of mountain, hills and flood plain. Enhanced Thematic Mapper (ETM+) data collected on July 2002 were used for this research. The color composite images produ...

Journal: :Brain and cognition 2012
Inês Bramão Luís Faísca Christian Forkstam Filomena Inácio Susana Araújo Karl Magnus Petersson Alexandra Reis

In this study, we used event-related potentials (ERPs) to evaluate the contribution of surface color and color knowledge information in object identification. We constructed two color-object verification tasks - a surface and a knowledge verification task - using high color diagnostic objects; both typical and atypical color versions of the same object were presented. Continuous electroencephal...

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