Topics

Stereoscopic Image Generation from Light Field with Disparity Scaling and Super-Resolution.

08:00 EDT 4th October 2019 | BioPortfolio

Summary of "Stereoscopic Image Generation from Light Field with Disparity Scaling and Super-Resolution."

In this paper, we propose a novel method to generate stereoscopic images from light-field images with the intended depth range and simultaneously perform image super-resolution. Subject to the small baseline of neighboring subaperture views and low spatial resolution of light-field images captured using compact commercial light-field cameras, the disparity range of any two subaperture views is usually very small. We propose a method to control the disparity range of the target stereoscopic images with linear or nonlinear disparity scaling and properly resolve the disocclusion problem with the aid of a smooth energy term previously used for texture synthesis. The left and right views of the target stereoscopic image are simultaneously generated by a unified optimization framework, which preserves content coherence between the left and right views by a coherence energy term. The disparity range of the target stereoscopic image can be larger than that of the input light field image. This benefits many light field image-based applications, e.g., displaying light field images on various stereo display devices and generating stereoscopic panoramic images from a light field image montage. An extensive experimental evaluation demonstrates the effectiveness of our method.

Affiliation

Journal Details

This article was published in the following journal.

Name: IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
ISSN: 1941-0042
Pages:

Links

DeepDyve research library

PubMed Articles [15055 Associated PubMed Articles listed on BioPortfolio]

Revisiting mental rotation with stereoscopic disparity: A new spin for a classic paradigm.

To understand how the presence of stereoscopic disparity influences cognitive and neural processing, we recorded participants' behavior and scalp electrical activity while they performed a mental rota...

Complex-Valued Disparity: Unified Depth Model of Depth from Stereo, Depth from Focus, and Depth from Defocus Based on the Light Field Gradient.

This paper proposes a unified depth model based on the light field gradient, in which estimated disparity is represented by the complex number. The complex-valued disparity by the proposed depth model...

Unsupervised Monocular Depth Estimation from Light Field Image.

Learning based depth estimation from light field has made significant progresses in recent years. However, most existing approaches are under the supervised framework, which requires vast quantities o...

4D Light Field Superpixel and Segmentation.

Superpixel segmentation of 2D image has been widely used in many computer vision tasks. Previous algorithms model the color, position or higher spectral information for segmenting a 2D image. However,...

A framework for learning depth from a flexible subset of dense and sparse light field views.

In this paper, we propose a learning based depth estimation framework suitable for both densely and sparsely sampled light fields. The proposed framework consists of three processing steps: initial de...

Clinical Trials [4461 Associated Clinical Trials listed on BioPortfolio]

Preoperative Stereoscopic Localization Versus Methylene Blue Localization in GGO Wedge Resection

This study evaluates the feasibility,accuracy and safety of Preoperative Stereoscopic Localization Versus Methylene Blue Localization in GGO Wedge Resection. In the first stage,partici...

Validation of 3 Dimensional Laparoscopic System in Disral Pancreatectomy and Splenectomy

Traditionally, laparoscopy has been based on 2-dimensional (2D) imaging, which has represented a considerable challenge for those approaching this technique. Thus, 3-dimensional (3D) visua...

The Second-Generation MCCG for Upper Gastrointestinal Tract.

The aim of this study is to evaluate the clinical application of the second-generation MCCG with higher image resolution and frame rate for upper gastrointestinal tract compared with the f...

BLI (Blue Light Imaging) for the Histological Characterization of Colorectal Polyps

The accuracy of real-time histology prediction (hyperplastic vs. adenomas) of colonic polyps using white light high-definition endoscopes is suboptimal. Blue laser imaging (BLI) is a new s...

High-Field MRI Characterization of Wrist and Hand Cartilage Abnormalities in Inflammatory and Chronic Rheumatisms

The present project aims at evaluating the diagnostic potential of high-field MRI (3 Teslas) for joint disease. At this field, given that isotropic image resolution of 400 microns can be o...

Medical and Biotech [MESH] Definitions

A light microscopic technique in which only a small spot is illuminated and observed at a time. An image is constructed through point-by-point scanning of the field in this manner. Light sources may be conventional or laser, and fluorescence or transmitted observations are possible.

Analytical technique for studying substances present at enzyme concentrations in single cells, in situ, by measuring light absorption. Light from a tungsten strip lamp or xenon arc dispersed by a grating monochromator illuminates the optical system of a microscope. The absorbance of light is measured (in nanometers) by comparing the difference between the image of the sample and a reference image.

The use of instrumentation and techniques for visualizing material and details that cannot be seen by the unaided eye. It is usually done by enlarging images, transmitted by light or electron beams, with optical or magnetic lenses that magnify the entire image field. With scanning microscopy, images are generated by collecting output from the specimen in a point-by-point fashion, on a magnified scale, as it is scanned by a narrow beam of light or electrons, a laser, a conductive probe, or a topographical probe.

A microscopic imaging technique that takes advantage of the process of harmonic generation that occurs when photons interact to generate new photons of a different wavelength. In second harmonic generation, two photons of the same wavelength and frequency, such as from a LASER, interact inside a medium and are converted to a photon of twice the frequency and half of the wavelength of the two incident photons. The light signals captured are used to produce images that are dependent on the unique optical properties of the material.

Improvement of the quality of a picture by various techniques, including computer processing, digital filtering, echocardiographic techniques, light and ultrastructural MICROSCOPY, fluorescence spectrometry and microscopy, scintigraphy, and in vitro image processing at the molecular level.

Quick Search


DeepDyve research library

Searches Linking to this Article