Fast non-blind deconvolution based on 2D point spread function database for real-time ultrasound imaging

In this paper, we consider the use of blind deconvolution for optoacoustic (photoacoustic) imaging and investigate the performance of the method as means for increasing the resolution of the reconstructed image beyond the physical restrictions of the system. The method is demonstrated with optoacoustic measurement obtained from six-day-old mice, imaged in the near-infrared using a broadband hydrophone in a circular scanning configuration. We find that estimates of the unknown point spread function, achieved by blind deconvolution, improve the resolution and contrast in the images and show promise for enhancing optoacoustic images.

Download Full-text

Blind Deconvolution of Blurred Images with Fuzzy Size Detection of Point Spread Function

Communications in Computer and Information Science - Emerging Trends and Applications in Information Communication Technologies ◽

10.1007/978-3-642-28962-0_26 ◽

2012 ◽

pp. 261-271

Author(s):

Salman Hameed Khan ◽

Muhammad Sohail ◽

Ahmed Rehan ◽

Zeashan Hameed Khan ◽

Arsalan Hameed Khan

Keyword(s):

Point Spread Function ◽

Blind Deconvolution ◽

Point Spread ◽

Spread Function ◽

Blurred Images

Download Full-text

Cortical point-spread function and long-range lateral interactions revealed by real-time optical imaging of macaque monkey primary visual cortex

Journal of Neuroscience ◽

10.1523/jneurosci.14-05-02545.1994 ◽

1994 ◽

Vol 14 (5) ◽

pp. 2545-2568 ◽

Cited By ~ 375

Author(s):

A Grinvald ◽

EE Lieke ◽

RD Frostig ◽

R Hildesheim

Keyword(s):

Visual Cortex ◽

Real Time ◽

Long Range ◽

Primary Visual Cortex ◽

Point Spread Function ◽

Macaque Monkey ◽

Lateral Interactions ◽

Point Spread ◽

Spread Function ◽

Cortical Point

Download Full-text

Blurred Image Restoration with Unknown Point Spread Function

Al-Mustansiriyah Journal of Science ◽

10.23851/mjs.v29i1.335 ◽

2018 ◽

Vol 29 (1) ◽

pp. 189 ◽

Cited By ~ 6

Author(s):

Ghada Sabah Karam

Keyword(s):

Image Quality ◽

Point Spread Function ◽

Image Quality Assessment ◽

Blind Deconvolution ◽

Assessment Method ◽

Reference Image ◽

Point Spread ◽

Spread Function ◽

Quality Assessment Method ◽

Blurred Image

Blurring image caused by a number of factors such as de focus, motion, and limited sensor resolution. Most of existing blind deconvolution research concentrates at recovering a single blurring kernel for the entire image. We proposed adaptive blind- non reference image quality assessment method for estimation the blur function (i.e. point spread function PSF) from the image acquired under low-lighting conditions and defocus images using Bayesian Blind Deconvolution. It is based on predicting a sharp version of a blurry inter image and uses the two images to solve a PSF. The estimation down by trial and error experimentation, until an acceptable restored image quality is obtained. Assessments the qualities of images have done through the applications of a set of quality metrics. Our method is fast and produces accurate results.

Download Full-text