Measurement of 3D-line shaped objects

Measurement of 3D-line shaped objects

We present a software tool for the analysis of 3D-line shaped objects in a 3D grey valued image. We discuss the extraction of the object from the image, the measurement of its shape features and its display.

Line-based 3D Reconstruction of Wiry Objects

Man-made environments contain many weakly textured surfaces which are typically poorly modeled in sparse point reconstructions. Most notable, wiry structures such as fences, scaffolds, or power pylons are not contained at all. This paper presents a novel approach for generating line-based 3D models from image sequences. Initially, camera positions are obtained using conventional Structurefrom-M...

Shaped-Based Recognition of 3D Objects from 2D Projections

3D Shape Measurement of Underwater Objects Using Motion Stereo

| It is very di cult to measure 3D shape of underwater object from outside of the water by the use of conventional range image sensors, because the measured image is distorted by the e ect of the light refraction on the water surface. In this study, we propose the new method for measuring 3D shape of underwater object by the use of motion stereo images obtained with a moving camera over the wat...

3D Objects Indexing Using Spherical Harmonic for Optimum Measurement Similarity

Abstract—In this paper, we propose a method for threedimensional (3-D)-model indexing based on defining a new descriptor, which we call new descriptor using spherical harmonics. The purpose of the method is to minimize, the processing time on the database of objects models and the searching time of similar objects to request object. Firstly we start by defining the new descriptor using a new di...