Topics

Robust Reflectance Estimation for Projection-Based Appearance Control in a Dynamic Light Environment.

08:00 EDT 10th September 2019 | BioPortfolio

Summary of "Robust Reflectance Estimation for Projection-Based Appearance Control in a Dynamic Light Environment."

We present a novel method for robustly estimating reflectance even in a dynamically changing light environment. To control the appearance of an object by using a projector-camera system, appropriate reflectance estimation is vital to the creation of an appropriate projection image. Most conventional estimation methods have assumed a static light condition although, in practice, the appearance is affected not only by the reflectance but also by the environmental light. In a dynamically changing light environment, conventional methods must be capable of applying calibrations every time the conditions change. Our method is based on a concept of creating two different light conditions by switching the projection at a rate that is higher than what the human eye can perceive, capturing images of a target object separately under each condition. Our method simultaneously estimates the reflectance and environmental light by using a pair of images acquired under two conditions. We implemented a projector-camera system that switches the projection on and off at 120 Hz. We conducted two experiments to confirm the robustness when changing the brightness and the color saturation of the environmental light, respectively. The results indicated our method is capable of robustly estimating the reflectance under practical indoor lighting conditions.

Affiliation

Journal Details

This article was published in the following journal.

Name: IEEE transactions on visualization and computer graphics
ISSN: 1941-0506
Pages:

Links

DeepDyve research library

PubMed Articles [27846 Associated PubMed Articles listed on BioPortfolio]

Assessment of plant water status in winter wheat (Triticum aestivum L.) based on canopy spectral indices.

Rapid and non-destructive estimation of plant water status is essential for adjusting field practices and irrigation schemes of winter wheat. The objective of this study was to find new combination sp...

Dynamic gene expression engineering as a tool in pathway engineering.

Taking inspiration from natural dynamic regulatory mechanisms in microbes, construction of dynamic regulatory networks has recently emerged as a promising strategy for metabolic pathway engineering. O...

U-net-based blocked artifacts removal method for dynamic computed tomography.

Airplane engines are vital aircraft components, so regular inspections of the engines are required to ensure their stable operation. A dynamic computed tomography (CT) system has been proposed by our ...

Photometric Depth Super-Resolution.

This study explores the use of photometric techniques (shape-from-shading and uncalibrated photometric stereo) for upsampling the low-resolution depth map from an RGB-D sensor to the higher resolution...

Nondestructive detection of rape leaf chlorophyll level based on Vis-NIR spectroscopy.

Chlorophyll is an important factor for measuring the normal growth and development status of plants, and it is also of great significance for the management and utilization of agricultural water and f...

Clinical Trials [8991 Associated Clinical Trials listed on BioPortfolio]

Retina Projection System Trials for Low Vision People

1. Purpose a. Examination on Efficacy of Retina Projection System 2. Patients a. Low vision patients 3. Methods 1. Vision aids ...

An Evaluation of Appearance-based Interventions for the Promotion of Sleep

This study evaluates the efficacy of appearance-based interventions in promoting healthy sleep. One group of participants will receive standard information about sleep (control group), whi...

Reflectance Confocal Imaging in Cervical Cancer Patients

The goal of this clinical research study is to see if reflectance confocal microscopy works as well as standard methods to detect cancer of the cervix or precancerous lesions. Primary Obj...

Can Habitus Adapted Length Based Body Weight Estimation be Improved by Adding Further Parameters?

The purpose of this prospective single center study is to investigate if the accuracy of length based body weight estimation by the already investigated algorithm (CLAWAR) can be improved ...

Assessment of Renal Physiology by Magnetic Resonance Imaging (MRI) in Normal Volunteers

Estimation of Glomerular Filtration Rate (GFR) is the primary test used to assess patients with renal disease. Although serum creatinine based GFR and nuclear medicine based estimations ar...

Medical and Biotech [MESH] Definitions

A pinkish-yellow portion of the midbrain situated in the rostral mesencephalic tegmentum. It receives a large projection from the contralateral half of the CEREBELLUM via the superior cerebellar peduncle and a projection from the ipsilateral MOTOR CORTEX.

The prediction or projection of the nature of future problems or existing conditions based upon the extrapolation or interpretation of existing scientific data or by the application of scientific methodology.

Projection of near-IR light (INFRARED RAYS), in the 700-1000 nm region, across an object in parallel beams to an array of sensitive photodetectors. This is repeated at various angles and a mathematical reconstruction provides three dimensional MEDICAL IMAGING of tissues. Based on the relative transparency of tissues to this spectra, it has been used to monitor local oxygenation, brain and joints.

Groups of individuals whose putative ancestry is from native continental populations based on similarities in physical appearance.

Validation of the sex of an individual by means of the bones of the SKELETON. It is most commonly based on the appearance of the PELVIS; SKULL; STERNUM; and/or long bones.

Quick Search


DeepDyve research library

Searches Linking to this Article