Results 81 to 90 of about 1,341,334 (344)

Endoscopic image enhancement with noise suppression

open access: yesHealthcare Technology Letters, 2018
Stereoscopic endoscopes have been used increasingly in minimally invasive surgery to visualise the organ surface and manipulate various surgical tools. However, insufficient and irregular light sources become major challenges for endoscopic surgery.
Wenyao Xia   +2 more
doaj   +1 more source

Gradient-Based Low-Light Image Enhancement [PDF]

open access: yesarXiv, 2018
A low-light image enhancement is a highly demanded image processing technique, especially for consumer digital cameras and cameras on mobile phones. In this paper, a gradient-based low-light image enhancement algorithm is proposed. The key is to enhance the gradients of dark region, because the gradients are more sensitive for human visual system than ...
arxiv  

Iterative Prompt Learning for Unsupervised Backlit Image Enhancement [PDF]

open access: yesarXiv, 2023
We propose a novel unsupervised backlit image enhancement method, abbreviated as CLIP-LIT, by exploring the potential of Contrastive Language-Image Pre-Training (CLIP) for pixel-level image enhancement. We show that the open-world CLIP prior not only aids in distinguishing between backlit and well-lit images, but also in perceiving heterogeneous ...
arxiv  

Enhancement and simplification of macromolecular images

open access: yesBiophysical Journal, 1988
Computer graphics programs have been devised to display selected atomic features and to simplify images of complex macromolecular structures. By using boundary outlines, adjustment of size and shape of the molecular components, color coding, shading, and selective omission of obscuring detail, attention can be focused on specific interactions which ...
Donald L. D. Caspar   +2 more
openaire   +3 more sources

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

DAF‐Retinex: Preserve the image detailed features and restore the reflected image

open access: yesIET Image Processing
Currently, deep learning methods for low‐light image enhancement tasks mainly focus on the illumination of images, while neglecting the problems of image noise and feature loss.
Shiyu Huang, Zijun Gao, Jue Wang, Bo Li
doaj   +1 more source

Unpaired Image Enhancement Featuring Reinforcement-Learning-Controlled Image Editing Software [PDF]

open access: yesarXiv, 2019
This paper tackles unpaired image enhancement, a task of learning a mapping function which transforms input images into enhanced images in the absence of input-output image pairs. Our method is based on generative adversarial networks (GANs), but instead of simply generating images with a neural network, we enhance images utilizing image editing ...
arxiv  

Nanoparticle Enhanced Imaging

open access: yesCancer Biomarkers, 2009
Nanotechnology refers to the research and technical development of objects in a scale range of 1 to 100 nanometers. Particles that are nano-sized are opening new research avenues in the field of engineering and life sciences. Imaging with biocompatible nanoparticles has emerged as one of the most promising new diagnostic imaging technology fulfilling ...
openaire   +4 more sources

A Retinex-based Image Enhancement Scheme with Noise Aware Shadow-up Function

open access: yes, 2018
This paper proposes a novel image contrast enhancement method based on both a noise aware shadow-up function and Retinex (retina and cortex) decomposition.
Chien, Chien Cheng   +3 more
core   +1 more source

Spot‐14 and its paralog Spot‐14R regulate expression of metabolic and thermogenic pathway genes in murine brown and beige adipocytes

open access: yesFEBS Letters, EarlyView.
Spot‐14 and Spot‐14R play distinct roles in regulating metabolism in brown and beige adipocytes. While both influence lipid and glucose pathways, Spot‐14 uniquely controls thermogenic gene expression. This dual regulation balances energy storage and heat production, highlighting potential therapeutic targets for obesity and metabolic disorders. Spot 14
Lidia Itzel Castro‐Rodríguez   +3 more
wiley   +1 more source

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