In photogrammetry a camera is considered calibrated if its interior orientation parameters are known. These encompass the principal distance, the principal point position and some Additional Parameters used to model possible systematic errors. The current state of the art for automated camera calibration relies on the use of coded targets to accurately determine the image correspondences. This ...

Line segment detection in images is already a well-investigated topic, although it has received considerably less attention in 3D point clouds. Benefiting from current LiDAR devices, large-scale point clouds are becoming increasingly common. Most human-made objects have flat surfaces. Line segments that occur where pairs of planes intersect give important information regarding the geometric con...

Abstract This paper designed a three-dimensional digital interactive platform, which takes power supply module, image data acquisition control transmission module and ESAM as the main hardware makes it feasible to realize transmission, multiple acquisition, platform process control, encryption decryption, identity authentication. Then, through relative orientation element calculation, model poi...

Re-measurement of existing, manufactured parts and re-creation 3D models these brought about the concept reverse engineering. Reverse engineering has become a frequently applied utilized in processes such as repairing damaged parts, improving used making new designs based on old parts. One main methods widely by many branches is photogrammetry. Photogrammetry, which includes wide range applicat...

The main features of a WEB-based tool for digital architectural photogrammetry called Architectural Photogrammetry Ž . Network Tool for Education and Research ARPENTEUR are presented. The aim of this project is to propose a photogrammetric software package made freely available on the Internet as an applet through a simple browser Ž . http:rrwww.arpenteur.net . All the photogrammetric adjustmen...

In this paper, an industrial application of CAD is presented, which concerns the measurement and reengineering of the shape of a complete ship hull and of ship’s parts, which is a frequently recurring task in the shipbuilding and ship repair sector. In order to choose the most appropriate measurement method, several typical aspects of our object of measurement, such as its size, possible obstru...

Understanding coal mine rib behavior is important for inferring pillar loading conditions as well as ensuring the safety of miners who are regularly exposed to ribs. Due to the variability in the geometry of underground openings and ground behavior, point measurements often fail to capture the true movement of mine workings. Photogrammetry is a potentially fast, cheap, and precise supplemental ...

The paper investigates immersive videography and its application in close-range photogrammetry. Immersive video involves the capture of a live-action scene that presents a 360° field of view. It is recorded simultaneously by multiple cameras or microlenses, where the principal point of each camera is offset from the rotating axis of the device. This issue causes problems when stitching together...

Photogrammetry methods are being used more and more as a 3D technique for large scale metrology applications in industry. Optical targets are placed on an object and images are taken around it, where measuring traceability is provided by precise off-process pre-calibrated digital cameras and scale bars. According to the 2D target image coordinates, target 3D coordinates and camera views are joi...

Industrial Photogrammetry which has advantages of high accuracy and fast measurement time is widely used in the manufacture measurement application. Especially, industrial photogrammetry has more powerful capability of quickness in the 3 dimensional coordinate measurement then comparing with optical measurement system like total station, laser tracker and laser scanner. The purpose of this pape...