Search PubMedSearch

PubMed · 8412381

Nonparametric two-dimensional point spread function estimation for biomedical imaging.

Abstract

The problem of identifying optical system point spread functions (PSFs) arises frequently in the area of image processing and restoration. The paper presents a method for determining two-dimensional PSFs from input/output image signals. The PSF of the system is determined from a set of linear equations involving elements of the input autocorrelation function and the input/output cross-correlation function. The resulting PSF is the one that minimises the sum of squares difference between the actual output image and the predicted one.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

T D Doukoglou, I W Hunter, R E Kearney. 1993. Nonparametric two-dimensional point spread function estimation for biomedical imaging.. https://doi.org/10.1007/bf02458047

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Medicolegal aspects of neurodiagnostic tests.

Legal issues that may arise in neurodiagnostic testing are reviewed briefly. This article focuses on applications of medical malpractice law with respect to negligence in selection, conduct, and interpretation of tests. The impact of the doctrine of informed consent is considered both in the context of malpractice law and human subjects research. The article concludes with a short exposition on enterprise liability and diagnostic tests, indicating the ways in which the growing role of corporations in medical practice may prompt changes in how claims for test-related medical injuries are processed. This article aims to convey an appreciation of how the law attempts to reduce test-related harms by imposing liability on individuals and organizations.

Diagnostic Imaging

Lumbar spinal stenosis.

Symptoms for spinal stenosis apparently result from an incongruity between the capacity and contents of the spinal nerve passages. These symptoms are most frequently seen in men in their fifth or sixth decade of life. Spinal extension generally exacerbates the claudication-type symptoms (lower-extremity pain and paresthesia), whereas spinal flexion diminishes these symptoms. Differential diagnosis is needed to rule out vascular claudication due to atherosclerosis. Decisions regarding surgery should be made based not only on diagnostic imaging but also on a thorough history and clinical examination.

Diagnostic Imaging