Focus Profile Modeling.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 26685248.
- Also identified by DOI 10.1109/TIP.2015.2509427.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
A focus profile depicts the image sharpness (or focus value) as the lens sweeps along the optical axis of a camera. Accurate modeling of the focus profile is important to many imaging tasks. In this paper, we present an approach to focus profile modeling that makes the search of in-focus lens position a mathematically tractable problem, and hereby improves the efficiency and accuracy of image acquisition. The proposed approach entails a transformation that converts the representation of a focus profile to quadratic form. An important feature of the approach is that no prior knowledge of the focus measurement technique is required. Experimental results are provided to demonstrate the effectiveness of the approach.