Construction and Visualization of the Target 3D Model Based on Multiple-View Images

Three-dimensional model building is one of the most challenging problems in the field of photogrammetry. With the continuous development of computer vision measurement, there are more and more methods to build three-dimensional model of target. On the basis of structured light projection three-dimensional measurement technology, this paper proposes an improved method of building object three-dimensional model based on multi-view images, analyses the principle of building the model and the key and difficult problems in its realization, and comprehensively uses image information processing technology, photogrammetry technology and three-dimensional graphics visualization. Key technologies, such as visualization technology, are used to reconstruct a digital surface model with three-dimensional geometric information and the number of surfaces attached to it by combining traditional image analysis tasks such as image feature extraction and image matching with artificial intelligence theory and multi-view geometry principle using two-dimensional image sequences of the target to be measured from different perspectives. In the whole process of word texture model, only a series of image sequences are captured by a camera relative to the target under test, and the three-dimensional model of the target is reconstructed by the algorithm. The experimental results show that the method proposed in this paper is convenient and effective. It has obvious improvements in restoring the true texture, geometric dimension accuracy and obtaining the colour distribution of the target surface. It is suitable for the construction of three-dimensional model for small regular or irregular objects. Compared with other three-dimensional modelling methods, it has the advantages of simple operation, flexibility, low requirement for equipment and wide practical value.