نتایج جستجو برای: lighting and texture

تعداد نتایج: 16835455  

2017
Shunsuke Saito Lingyu Wei Liwen Hu Koki Nagano Hao Li

Our main results in the paper demonstrate successful inference of high-fidelity texture maps from unconstrained images. The input images have mostly low resolutions, nonfrontal faces, and the subjects are often captured in challenging lighting conditions. We provide additional results with pictures from the annotated faces-in-the-wild (AFW) dataset [10] to further demonstrate how photorealistic...

2012
Rachel E. Manoni Roxanne L. Canosa

Current face identification systems are not robust enough to accurately identify the same individual in different images with changes in head pose, facial expression, occlusion, length of hair, illumination, aging, etc. This is especially a problem for facial images that are captured using low resolution video cameras or webcams. This paper introduces a new technique for facial identification i...

ژورنال: ارگونومی 2020

Background and Aim: Undesirable lighting the work environment causes visual and non-visual effects in employers. The aim of this study was to compare the quantity and quality of combined and artificial lighting in daytime and its relationship with the indexes of mental performance. Methods: This study carried out at 65 rooms and on 81 employees randomly selected from different clusters. Measur...

ژورنال: ارگونومی 2022

Introduction: Visual comfort is an important and influential factor on safety, mental health, sleep quality, and musculoskeletal disorders of employees in the workplace. This study aimed to design and develop a questionnaire to assess the visual comfort of employees in the workplace. Methods: The study was performed on 101 participants (88 men and 13 women) in the food industry. First, the a...

Ahmad Heidari Ali shamshirsaz Mohammad Taheri, Yousef Jafari Ahangari

This study was conducted to determine the effects of increasing lighting after peak production on eggs production and Hatchable Eggs in broiler breeder Hubbard F15. In this research we used from 4 growing saloons, that in per saloons were 5250 Hubbards broiler breeder hens. In this Experiment we used by Line design way of GLM for analysed data, that we considered the Effects of two parameters, ...

2010
Xiaoyue Jiang Andrew J. Schofield Jeremy L. Wyatt

Intrinsic images represent the underlying properties of a scene such as illumination (shading) and surface reflectance. Extracting intrinsic images is a challenging, ill-posed problem. Human performance on tasks such as shadow detection and shape-from-shading is improved by adding colour and texture to surfaces. In particular, when a surface is painted with a textured pattern, correlations betw...

2003
Xi Wang Lifeng Wang Ligang Liu Shimin Hu Baining Guo

There exist many computer graphics techniques which could achieve high quality tree generation. However, only a few works focus on realistic modeling of tree bark. Difficulties lie in the complex appearance of the bark surfaces which are largely determined by their mesostructures. Unlike traditional physical based methods, in this paper, we present an appearance-based method to model tree bark ...

2002

Texture mapping has become indispensable in image synthesis as an inexpensive source of rich visual detail. Less obvious, but just as useful, is its ability to mask image errors due to inaccuracies in geometry or lighting. This ability can be used to substantially accelerate rendering by eliminating computations when the resulting errors will be perceptually insignificant. Our new method precom...

2003
Xi Wang Lifeng Wang Ligang Liu Shi-Min Hu Baining Guo

There exist many computer graphics techniques which could achieve high quality tree generation. However, only a few works focus on realistic modeling of tree bark. Difficulties lie in the complex appearance of the bark surfaces which are largely determined by their mesostructures. Unlike traditional physical based methods, in this paper, we present an appearance-based method to model tree bark ...

1998

This chapter will summarize the results obtained in the thesis, point out possible applications and directions for future research. The chapters will be treated in order of apparence if possible (some topics aaect more than one chapter). The introduction treats model-based coding, which is a technique to code image sequences at very low rates. The focus is set on face sequences, where two unre-...

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