从DNA序列中对人类面部3D图像进行De Novo重建
Mingqi Jiao1, Jiarui Li2, Bingxu Zhong1
1Key Laboratory of Systems Health Science of Zhejiang Province, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou, 310024, China.
概括
研究人员开发了Difface,这是一种新的AI模型,可以直接从DNA数据中生成3D人类面部图像. 法医科学和基因组学的这一突破,允许从遗传信息中进行个体识别和外观预测.
科学领域:
- 基因组学和生物信息学
- 人工智能的人工智能
- 法医科学 法医科学 法医科学
- 计算机视觉 计算机视觉
背景情况:
- 面部形态作为个人识别的关键生物识别标记,特别是在法医应用中.
- 从DNA重建3D面部图像是一种新兴的技术,用于从未知生物样本中识别个体,并通过高通量测序进行增强.
- 现有的方法缺乏仅从遗传数据中生成详细的3D面部重建的能力.
研究的目的:
- 介绍Difface,一种多模式的人工智能模型,能够完全从DNA中重建3D人类面部图像.
- 建立一种将高维基遗传数据 (单核酸多态) 与3D面部形态联系起来的方法.
- 展示Difface在法医识别和预测个人随时间推移的外观方面的潜力.
主要方法:
- 迪法斯使用变压器和螺旋卷积网络将单核酸多态 (SNP) 和3D面部图像映射到共享的低维特征空间中.
- 使用对比式学习方法,在潜在空间中建立DNA数据和面部特征之间的关联.
- 整合了扩散模型,以根据已识别的SNP特征重建详细的3D面部结构.
主要成果:
- 当Difface模型被应用到汉语数据库 (9,674个样本) 时,它在从DNA数据中对准和重建3D面部图像方面表现出了很高的性能.
- 该模型通过将遗传标记与面部特征联系起来,成功地描述了个体基因组学.
- 纳入表型信息进一步提高了3D面部重建的质量,使得预测年龄进展.
结论:
- "Difface"代表了从基因组信息中直接生成人类面部图像的新一代的开创性进展.
- 该模型为法医识别和理解面部形态学的遗传基础提供了一个强大的新工具.
- 这项研究为个性化识别和法医调查和个性化医学的潜在应用开辟了新的途径.
相关概念视频
02:54Evolutionary Relationships through Genome Comparisons
5.6K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.6K
01:07The DNA Helix
18.4K
Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
18.4K
01:07Electron Microscope Tomography and Single-particle Reconstruction
2.3K
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
2.3K
02:05DNA as a Genetic Template
6.6K
6.6K
03:00Next-generation Sequencing
86.0K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
86.0K
01:09Recombinant DNA
92.7K
Overview
92.7K