In this paper, a new hybrid TSA-PSO algorithm is proposed that combines tunicate swarm (TSA) with the particle optimization (PSO) technique for efficient maximum power extraction from photovoltaic (PV) system subjected to partial shading conditions (PSCs). The performance of was enhanced by incorporating PSO algorithm, which improves exploitation capability TSA. response TSA-PSO-based MPPT inve...

In this paper, parametric design approach is used to optimize the external shading device design, which take examples of horizontal shading devices and horizontal louver shading devices on south faced of buildings in Guangzhou, Shanghai and Beijing. The optimize goal of whole year shading effect is “Shading in summer and solar in winter, both as much as possible at the same time”. In the first ...

In this article we will explore the application of volume rendering techniques to the display of surfaces from sampled scalar functions of three spatial dimensions. It is not necessary to fit geometric primitives to the sampled data. Images are formed by directly shading each sample and projecting it onto the picture plane. Surface-shading calculations are performed at every voxel with local gr...

We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. We use the resulting highly accurate estimates to modify virtually the illumination and geometry of a real scene and produce correctly illuminated Mixed Reality images. Our method obviates the need to modify the imaged s...

Shading, or brightness variation, exhibited within an image is a well-known cue for what is variously termed surface shape, depth, or form. As examples, artists commonly use tonal values in drawings to convey a realistic impression of 3-dimensionality, and make-up is sometimes used to give facial shape a flattering appearance. Just how shape might be recovered from shading has long been studied...

Under partial shading conditions (PSCs), the P-V characteristic of a photovoltaic (PV) array becomes more complicated due to presence than one power peak in contrast normal (without shading) where there is only named Maximum Power Point (MPP). In this paper, an improved scanning method track Global (GMPP) with good tracking speed proposed. The objective reduce response time by limiting search i...

Shading was used to generate the appearance of an obliquely illuminated surface with spherical indentations and protrusions. The "pop-out" of an apparent indentation among numerous apparent protrusions served as a psychophysical assay for shape-from-shading. Detectability of the pop-out varied with the direction of apparent illumination, a finding which is characteristic for shape-from-shading ...

Procedural shading has proven to be an indispensable tool for providing photorealistic, photosurrealistic, and artistic effects in computer generated animations. However, due to its computational cost, the time to produce a single frame is measured in hours or days. In this paper we introduce shadermaps, a new method for accelerating procedural shading which exploits inter-frame coherence to si...

The support for IEEE floating point computation and the exposure of shading functionality in a standardize API form have made graphics hardware a viable workflow solution to an artist involved in digital content creation (DCC). Nevertheless, there still remains a significant interface void between the abstract shading description an artist is used to and the low level shading constructs the har...