3D face reconstruction algorithms from images and videos are applied to many
fields, from plastic surgery to the entertainment sector, thanks to their
advantageous features. However, when looking at forensic applications, 3D face
reconstruction must observe strict requirements that still make its possible
role in bringing evidence to a lawsuit unclear. An extensive investigation of
the constraints, potential, and limits of its application in forensics is still
missing. Shedding some light on this matter is the goal of the present survey,
which starts by clarifying the relation between forensic applications and
biometrics, with a focus on face recognition. Therefore, it provides an
analysis of the achievements of 3D face reconstruction algorithms from
surveillance videos and mugshot images and discusses the current obstacles that
separate 3D face reconstruction from an active role in forensic applications.
Finally, it examines the underlying data sets, with their advantages and
limitations, while proposing alternatives that could substitute or complement
them.

3D 面部重建算法在图像和视频中的应用广泛，但在法医应用中，其作为证据的作用仍不明确。本文调查了 3D 面部重建在法医学中的应用约束、潜力和限制，并提出了可能取代或补充现有数据集的替代方案。

3D 人脸重建：前往取证之路

3D Face Reconstruction: the Road to Forensics

3D face reconstruction algorithms from images and videos are applied to many
fields, from plastic surgery to the entertainment sector, thanks to their
advantageous features. However, when looking at forensic applications, 3D face
reconstruction must observe strict requirements that still make unclear its
possible role in bringing evidence to a lawsuit. Shedding some light on this
matter is the goal of the present survey, where we start by clarifying the
relation between forensic applications and biometrics. To our knowledge, no
previous work adopted this relation to make the point on the state of the art.
Therefore, we analyzed the achievements of 3D face reconstruction algorithms
from surveillance videos and mugshot images and discussed the current obstacles
that separate 3D face reconstruction from an active role in forensic
applications.

本文调查了 3D 人脸重建算法在法证应用中的潜在作用，强调了它与生物识别的关系，并分析了目前的障碍。