Jove
Visualize
Contact Us

Related Concept Videos

Shape and Texture of Coarse Aggregate01:25

Shape and Texture of Coarse Aggregate

Aggregate shape is classified based on the relative sharpness or roundness of the edges and corners. This classification includes categories like rounded, angular, elongated, and flaky, each with specific characteristics. Rounded aggregates, fully shaped by attrition, are typical of river or seashore gravel, while angular aggregates, such as crushed rock, have well-defined edges. Aggregates that are elongated and flaky are less desirable, as they can reduce the workability and strength of...
Deformations in a Transverse Cross Section01:21

Deformations in a Transverse Cross Section

When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
State Space Representation01:27

State Space Representation

The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
Sampling Theorem01:15

Sampling Theorem

In signal processing, the analysis of continuous-time signals, denoted as x(t), often involves sampling techniques to convert these signals into discrete-time signals. This process is essential for digital representation and manipulation. A critical component in sampling is the train of impulses, characterized by the sampling interval and the sampling frequency. The relationship between these parameters and the original signal's properties dictates the success of the sampling process.
Fischer Projections02:18

Fischer Projections

Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...
Mesh Analysis01:20

Mesh Analysis

Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Material fingerprinting: predicting human perception of material appearance through psychophysical analysis and neural networks.

Royal Society open science·2025
Same author

Perceptual dimensions of wood materials.

Journal of vision·2024
Same author

Texture Segmentation Benchmark.

IEEE transactions on pattern analysis and machine intelligence·2021
Same author

Rapid material appearance acquisition using consumer hardware.

Sensors (Basel, Switzerland)·2014
Same author

Hierarchical multiple Markov chain model for unsupervised texture segmentation.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2009
Same author

Computer-aided evaluation of screening mammograms based on local texture models.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2009
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 20, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

Bidirectional texture function modeling: a state of the art survey.

Jirí Filip1, Michal Haindl

  • 1Pattern Recognition Department, Institute of Information Theory and Automation of the AS CR, Praha, Czech Republic. jiri.filip@utia.cz

IEEE Transactions on Pattern Analysis and Machine Intelligence
|September 19, 2009
PubMed
Summary

Bidirectional Texture Functions (BTFs) capture material appearance under varying light and viewpoints. This survey reviews recent advances in BTF measurement, compression, modeling, and rendering for computer vision applications.

More Related Videos

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
07:05

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography
09:00

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography

Published on: September 29, 2019

Related Experiment Videos

Last Updated: Jun 20, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
07:05

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography
09:00

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography

Published on: September 29, 2019

Area of Science:

  • Computer Vision and Graphics
  • Material Appearance Modeling

Background:

  • Real-world material appearance varies significantly with illumination and viewing angles.
  • Accurate material representation requires capturing reflectance across diverse light and camera positions.
  • Bidirectional Texture Functions (BTFs) offer a comprehensive approach to material appearance.

Purpose of the Study:

  • To categorize and critically survey existing methods for Bidirectional Texture Functions (BTFs).
  • To psychophysically compare different BTF approaches.
  • To highlight recent advancements in BTF measurement, compression, modeling, and rendering.

Main Methods:

  • Systematic categorization of BTF techniques.
  • Critical review of published literature on BTF.
  • Psychophysical comparison of BTF methods.

Main Results:

  • Emergence of practical methods for BTF measurement, compression, modeling, and rendering.
  • Identification of key challenges and advancements in the field.
  • Comparative analysis of different BTF approaches.

Conclusions:

  • BTF technology is maturing, enabling wider practical applications.
  • Further research is needed to optimize BTF methods for real-world use.
  • This survey provides a foundational overview of the emerging BTF field.