Automatic extraction of buildings from digital images aims at detection of buildings from digital images and reconstruction of roof structure automatically. At Pictometry, more than 30 million images are captured every year and how to extract the useful information of objects on the ground from the existing image library for various applications is a big challenge we face now. In this paper, an...

Atriums play an irreplaceable role within the plan of modern commercial buildings. However, presence skylights makes atrium suffer from unfavorable conditions such as overheating, high energy consumption, and glare, which can be partially reduced by sun-shading design skylights. In this paper, we conducted a field test questionnaire survey on daylight quality buildings in cold zones China to fi...

Numerous studies have identified the roof plate as an important signaling center controlling dorsal interneuron specification and differentiation in the developing spinal cord. Currently, the molecular pathways of roof plate formation and function are poorly understood. We determined that the LIM-homeodomain transcription factor Lmx1b is sufficient to induce functional roof plate in the early c...

The objective of this paper is to show that the visualization of an urban landscape by 3D computer graphics can be used as indicators of human habitats on a worldwide basis when we think of a sustainable world in future. In the 1900s, in Japan, 2D digital urban maps became popular as commercial products such as automobile navigation map with GPS. They adopted the traditional map making techniqu...

SUMMARY This paper presents a method for building roof contours extraction from high-resolution aerial imagery taken over complex urban scenes. The proposed method is based on the optimization of a snakes energy function that represents building roof contours in the image-space digital reference system by using the dynamic programming technique. Formally, snakes (or active contour models) are p...

The photovoltaic (PV) panel makes it possible for everyone to produce electricity in their own house. However, the is quite a costly investment and requires much consideration maximize its potential. roof has variables that would impact generation. of housing Indonesia was built generally complex shape, combination gable hip roofs. This research conducted break down factors affecting PV product...

This paper is addressed to an approach for segmenting airborne laser scanning point cloud. It aims to detect and cluster point cloud of an input roof into several segments that are corresponding to plane patches of the roof. The algorithm is developed based on the assumption that every non-flat roof can be decomposed into a set of gabled and/or hipped roof. The process detects roof ridges at fi...

This paper presents a new approach for roof facet segmentation based on ridge detection and hierarchical decomposition along ridges. The proposed approach exploits the fact that every roof can be composed of a set of gabled roofs and single facets which are separated by the gabled roofs. In this work, firstly, building footprints stored in OpenStreetMap are used to extract 3D points on roofs. T...

In contemporary architectural design new and experimental forms are constantly searched for and in the interaction between structural and architectural design a readable structural function adding to the architectural experience can be of interest. Cross-laminated timber plate elements show a high stiffness to weight ratio, and provide a wide range of possible structural applications. They have...