نتایج جستجو برای: shading

تعداد نتایج: 7601  

2015

1 Small-scale mountain cartography: relief features and data sources ......................................................77 2 Traditional relief shading and plan oblique relief ......................................................................................78 3 Continuous color shading .........................................................................................................

2005
Vesna ZELJKOVIĆ Željen TRPOVSKI Vojin ŠENK

A new, simple, fast and effective method for moving object detection in outdoor environments, invariant to extreme illumination changes is presented as an improvement to the shading model method described in [8]. It is based on an analytical parameter introduced in the shading model, background updating technique and window processing.

2006
Ben Jones

The simulation of realistic lighting and shading for the reproduction of human skin in computer graphics is a subject of great depth. This paper deals with a method for implementing an approximation of the appearance of human skin in a RenderMan shading network, and using Pixar’s ‘prman’ scan-line native renderer.

Journal: :Pattern Recognition 1995
James Edwin Cryer Ping-Sing Tsai Mubarak Shah

-Stereo algorithms suffer from the lack of local surface texture due to smoothness of depth constraint, or local miss-matches in disparity estimates. Thus, most stereo methods only provide a coarse depth map which can be associated with a low pass image of the depth map. On the other hand, shape from shading algorithms generally produce better estimates of local surface areas, but some of them ...

2017
Longmei Wu Wujun Zhang Yanfeng Ding Jianwei Zhang Elidio D. Cambula Fei Weng Zhenghui Liu Chengqiang Ding She Tang Lin Chen Shaohua Wang Ganghua Li

Low solar radiation caused by industrial development and solar dimming has become a limitation in crop production in China. It is widely accepted that low solar radiation influences many aspects of plant development, including slender, weak stems and susceptibility to lodging. However, the underlying mechanisms are not well understood. To clarify how low solar radiation affects stem mechanical ...

2017
Lubin Song Qingping Ma Zhongwei Zou Kang Sun Yuantao Yao Jihan Tao Najeeb A. Kaleri Xinghui Li

'Huangjinya' is an excellent albino tea germplasm cultivated in China because of its bright color and high amino acid content. It is light sensitive, with yellow leaves under intense light while green leaves under weak light. As well, the flavonoid and carotenoid levels increased after moderate shading treatment. However, the mechanism underlying this interesting phenomenon remains unclear. In ...

Journal: :Annals of botany 2007
Yun Liu Feike Schieving Josef F Stuefer Niels P R Anten

BACKGROUND AND AIMS Because plants protect each other from wind, stand density affects both the light climate and the amount of mechanical stress experienced by plants. But the potential interactive effects of mechanical stress and canopy shading on plant growth have rarely been investigated and never in stoloniferous plants which, due to their creeping growth form, can be expected to respond d...

Journal: :Vision Research 2005
Frederick A.A. Kingdom Sohil Rangwala Karim Hammamji

The 'colour-shading effect' describes the phenomenon whereby chromatic variations affect the magnitude of perceived shape-from-shading in luminance patterns. A previous study showed that in mixed colour-plus-luminance sine-wave plaids, impressions of depth in the luminance component were enhanced by non-aligned chromatic components, and suppressed by aligned chromatic components [Nature Neurosc...

2016
Morgan McGuire Kayvon Fatahalian Aaron Lefohn

We present Aggregate G-Buffer Anti-Aliasing (AGAA), a new technique for efficient anti-aliased deferred rendering of complex geometry using modern graphics hardware. In geometrically complex situations where many surfaces intersect a pixel, current rendering systems shade each contributing surface at least once per pixel. As the sample density and geometric complexity increase, the shading cost...

2008
Dmitrij Schlesinger Boris Flach

We propose a probabilistic segmentation scheme, which is widely applicable to some extend. Besides the segmentation itself our model incorporates object specific shading. Dependent upon application, the latter is interpreted either as a perturbation or as meaningful object characteristic. We discuss the recognition task for segmentation, learning tasks for parameter estimation as well as differ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید