A Novel Approach to 3D Reconstruction Technology of Small Cultural Relics Based on Spatial Coded Texture Image Projection

Abstract

It has become a global trend to combine information technology with the protection, research, inheritance of cultural relics utilizing computers, networks, software, which can provide supporting technologies and tools. Towards the key problem of 3D digitization of cultural relics in digital museum construction, a 3D reconstruction technology of small cultural relics based on spatial coded texture image projection is proposed. Firstly, a colorful texture spatial coded picture is designed based on the pseudo-random M-array whose window is unique. Secondly, a decoding algorithm based on color transfer technology is proposed to realize the decoding and accurate positioning of spatial coding. Finally, use the multi-view images after pixel coordinates positioning to directly obtain the corresponding points, and the 3D reconstruction of small cultural relics is realized. The experimental results show that the 3D reconstruction accuracy of the proposed method reaches 0.1488mm, which can better solve the problems encountered in the 3D reconstruction of small cultural relics.