Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Apr 2;11:1645. doi: 10.1038/s41467-020-15157-4

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Fig. 5 — Virtual lens vignetting effect without spatial sectioning (column a), with spatial sectioning (column b). Voxels at a given depth z should be computed for a time t when they are actually illuminated by part of the virtual illumination pulse. Using only one distance-time shift (L = 1 in Eq. (12) for all voxels results in large errors in voxel brightness that lead to a blurry appearance. Using two different distance-time shifts (L = 2) in different voxel regions results in crisper images. This motivates the spatial sectioning method to mimic a perfect virtual imaging system that is not limited to a small field of view.