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arXiv · 1810.08829

Data-Driven Tight Frame for Cryo-EM Image Denoising and Conformational Classification

Yin Xian·Hanlin Gu·Wei Wang·Xuhui Huang·Yuan Yao·Yang Wang·Jian-Feng Cai
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Abstract

The cryo-electron microscope (cryo-EM) is increasingly popular these years. It helps to uncover the biological structures and functions of macromolecules. In this paper, we address image denoising problem in cryo-EM. Denoising the cryo-EM images can help to distinguish different molecular conformations and improve three dimensional reconstruction resolution. We introduce the use of data-driven tight frame (DDTF) algorithm for cryo-EM image denoising. The DDTF algorithm is closely related to the dictionary learning. The advantage of DDTF algorithm is that it is computationally efficient, and can well identify the texture and shape of images without using large data samples. Experimental results on cryo-EM image denoising and conformational classification demonstrate the power of DDTF algorithm for cryo-EM image denoising and classification.

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Yin Xian, Hanlin Gu, Wei Wang, Xuhui Huang, Yuan Yao, Yang Wang, Jian-Feng Cai. 2018-10-20. Data-Driven Tight Frame for Cryo-EM Image Denoising and Conformational Classification. https://arxiv.org/abs/1810.08829

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