A Comprehensive Survey on 3D Single-View Object Reconstruction

Single-view 3D object reconstruction (SVOR) aims to recover the 3D shape of an object from a single 2D image. Despite advances in deep learning (DL), challenges such as incomplete image information, scarce 3D data annotation, and highly variable object shapes still limit the performance of SVOR. Meanwhile, with the rapid development of novel view synthesis (NVS) techniques, the SVOR field has received significant advancements. However, existing reviews have not comprehensively covered the rapid developments in NVS-based approaches. This article aims to fill this gap by highlighting the latest progress in SVOR, particularly advancements related to NVS-based methods. Additionally, we observed discrepancies between existing quality evaluation metrics in SVOR and human visual perception. This is because some critical object parts are essential to consider during the evaluation. For example, when reconstructing airplanes, critical parts like the empennage and wings are often overlooked in evaluation metrics due to their smaller size compared to the fuselage. Consequently, poor reconstruction of these parts may not significantly affect overall evaluation scores. To address this issue, we propose a more comprehensive evaluation method that reflects human visual perception accurately. To achieve this, we introduce a weighted evaluation method that considers part saliency and proposes a novel technique for automatically perceiving reconstruction discrepancies. This study effectively enhances the accuracy and consistency of evaluations through these approaches, offering new insights and methodologies, filling a void in the existing literature, and providing valuable contributions to both research and practical applications in SVOR.