Speckle reducing oct using optical chopper
WebSpeckle noise exists inherently in the synthetic aperture radar (SAR) image. Its multiplicative property leads to lots of difficulties in SAR image processing. A novel guidance-aided triple-adaptive Frost filter is proposed in this paper, which has potential for real-time processing platforms. Firstly, a scale-adaptive sliding window sizing method is adopted to determine … WebHowever, speckle noise significantly degrades the image quality of OCT and has a negative impact on the clinical diagnosis accuracy. In this paper, we propose a novel speckle noise …
Speckle reducing oct using optical chopper
Did you know?
WebSpeckle Reduction in Optical Coherence Tomography via Super-Resolution Reconstruction Abstract: Reducing speckle noise from the optical coherence tomograms (OCT) of human … WebApr 13, 2024 · Visible light optical coherence tomography (vis-OCT) provides a unique tool for imaging both structure and oxygen metabolism in ophthalmology. ... Kopriva, F. Shi, and X. Chen, “ Enhanced low-rank + sparsity decomposition for speckle reduction in optical coherence tomography,” J. Biomed. Opt. 21, 076008 (2016). ... The optical properties of ...
WebAbstract We present a technique to reduce speckle in visible-light optical coherence tomography (vis-OCT) that preserves fine structural details and is robust against sample … WebIn this paper we propose a novel speckle noise suppression technique which changes the spatial distribution of sample beam using a special optical chopper. Then a series of OCT …
WebSpeckle is a characteristic granular texture inherent to optical coherence tomography (OCT) images of turbid media, such as biological tissues. Speckle is a consequence of the coherent nature of OCT, and results from the interference … WebJan 1, 2024 · Optical coherence tomography (OCT), as a tool for biological research and clinical application, plays an important role in disease diagnosis. However, speckle noise …
WebDec 8, 2024 · Speckle noise is ubiquitous in the optical coherence tomography (OCT) image of the anterior segment, which greatly affects the image quality and destroys the relevant structural information. In order to reduce the influence of speckle noise in OCT images, a denoising algorithm based on a convolutional neural network is proposed in this paper.
WebIn this paper, we demonstrate a novel OFDI system that simultaneously acquires hundreds of angularly resolved images, which can be compounded to reduce speckle noise. The … how many cups of water should a female drinkWebNov 1, 2011 · Signal-degrading speckle is one factor that can reduce the quality of optical coherence tomography images. We demonstrate the use of a hierarchical model-based motion estimation processing scheme based on an affine-motion model to reduce speckle in optical coherence tomography imaging, by image registration and the averaging of … high schools near coomeraWebAbstract We present a technique to reduce speckle in visible-light optical coherence tomography (vis-OCT) that preserves fine structural details and is robust against sample motion. Specifically, we locally modulate B-scans orthogonally to their axis of acquisition. high schools near clearwater flWebMar 22, 2024 · The speckle noise from the OCT images can also be reduced by sparse and redundant representation of image along with K-SVD algorithm [ 15 ]. Discrete wavelet transform with Bayesian threshold is also used for speckle noise removal from OCT images [ 16 ]. Recently, a number of combinational techniques are also used to de-noising the … how many cups of water should i drink per dayWebAug 1, 2024 · Two categories of methods were used to reduce noise, including hardware-based and image-processing-based methods. Hardware-based methods include optical chopper [7], angular compounding [8,9], spatial compounding [10,11], and frequency compounding [12], aiming to produce uncorrelated speckle patterns that can be … high schools near columbia city indianaWebFeb 1, 2024 · By using the site you are agreeing to this as outlined in our privacy notice and cookie policy. Abstract Read article for free, via Unpaywall (a legal, open copy of the full … how many cups of water to riceWebOct 30, 2024 · Optical coherence tomography (OCT) is a powerful technology for monitoring and diagnosing eye diseases. However, speckle noise is not beneficial for improving OCT image quality and further image analysis, such as segmentation of the retinal layer. Inspired by the rapid development of deep learning, several methods have been proposed for OCT … how many cups of water to drink per day