Zeng Ying, Wang Yimin
School of Computer Science and Technology, Shanghai University, Shanghai 200444, China.
Guangdong Institute of Intelligence Science and Technology, Zhuhai 519031, China.
Brain Sci. 2024 Apr 19;14(4):396. doi: 10.3390/brainsci14040396.
In the past few years, significant advancements in microscopic imaging technology have led to the production of numerous high-resolution images capturing brain neurons at the micrometer scale. The reconstructed structure of neurons from neuronal images can serve as a valuable reference for research in brain diseases and neuroscience. Currently, there lacks an accurate and efficient method for neuron reconstruction. Manual reconstruction remains the primary approach, offering high accuracy but requiring significant time investment. While some automatic reconstruction methods are faster, they often sacrifice accuracy and cannot be directly relied upon. Therefore, the primary goal of this paper is to develop a neuron reconstruction tool that is both efficient and accurate. The tool aids users in reconstructing complete neurons by calculating the confidence of branches during the reconstruction process. The method models the neuron reconstruction as multiple Markov chains, and calculates the confidence of the connections between branches by simulating the reconstruction artifacts in the results. Users iteratively modify low-confidence branches to ensure precise and efficient neuron reconstruction. Experiments on both the publicly accessible BigNeuron dataset and a self-created Whole-Brain dataset demonstrate that the tool achieves high accuracy similar to manual reconstruction, while significantly reducing reconstruction time.
在过去几年中,显微成像技术取得了重大进展,产生了大量在微米尺度上捕捉脑神经元的高分辨率图像。从神经元图像重建的神经元结构可为脑部疾病研究和神经科学研究提供有价值的参考。目前,缺乏一种准确高效的神经元重建方法。手动重建仍是主要方法,虽然准确性高,但需要投入大量时间。虽然一些自动重建方法速度更快,但往往牺牲了准确性,不能直接依赖。因此,本文的主要目标是开发一种既高效又准确的神经元重建工具。该工具通过在重建过程中计算分支的置信度来帮助用户重建完整的神经元。该方法将神经元重建建模为多个马尔可夫链,并通过模拟结果中的重建伪像来计算分支之间连接的置信度。用户迭代修改低置信度分支,以确保精确高效的神经元重建。在公开可用的BigNeuron数据集和自行创建的全脑数据集上进行的实验表明,该工具实现了与手动重建相似的高精度,同时显著减少了重建时间。