Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Electrostatic Boundary Conditions

Electrostatic Boundary Conditions

Consider an external electric field propagating through a homogeneous medium. When the electric field crosses the surface boundary of the medium, it undergoes a discontinuity. The electric field can be resolved into normal and tangential components. The amount by which the field changes at any boundary is given by the difference between the field components above and below the surface boundary.
The surface integral of an electric field is given by Gauss's law in integral form and is related to...

Boundary Conditions for Current Density

Boundary Conditions for Current Density

Current density becomes discontinuous across an interface of materials with different electrical conductivities. The normal component of the current density is continuous across the boundary.

Boundary Layer Characteristics

Boundary Layer Characteristics

When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...

Quadric Surfaces

Quadric Surfaces

Quadric surfaces are three-dimensional surfaces characterized by second-degree equations in the variables x, y, and z. These surfaces are smooth and continuous, and specific combinations of squared and linear terms define their shapes. The main types of quadric surfaces include ellipsoids, cones, paraboloids, and hyperboloids. Each type exhibits distinct geometric features depending on how the variables are arranged and related within the equation.Ellipsoids are closed surfaces formed when all...

Partial Differential Equations

Partial Differential Equations

A stone dropped into a still pond generates waves that propagate outward in circular patterns, creating a dynamic surface whose elevation depends on both position and time. At any given location, the water level oscillates as the wave passes, while at any fixed moment, the surface exhibits smooth, curved structures extending across space. This dual dependence requires a mathematical description that accounts for variation in multiple variables simultaneously.At a fixed point on the water...

Parametric Surfaces

Parametric Surfaces

A parametric surface in three-dimensional space is defined through a vector-valued function\begin{equation*}\mathbf{r}(u, v) = x(u, v)\mathbf{i} + y(u, v)\mathbf{j} + z(u, v)\mathbf{k}\end{equation*}where u and v are parameters within a specified domain D in the uv-plane. The functions x(u, v), y(u, v), and z(u, v) define the coordinates of points on the surface. As u and v vary over D, the position vector r(u, v) traces a continuous surface in space. This parametric representation is essential...

You might also read

Related Articles

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

Sort by

Same author

The impact of a perceptual and adaptive learning module on transoesophageal echocardiography interpretation by anaesthesiology residents.

British journal of anaesthesia·2017

Same author

Approximation, torsion, and amodally-completed surfaces.

Vision research·2008

Same author

Interpolation processes in the visual perception of objects.

Neural networks : the official journal of the International Neural Network Society·2003

Same author

Driving in the future: temporal visuomotor adaptation and generalization.

Journal of vision·2003

Same author

Sensorimotor adaptation to violations of temporal contiguity.

Psychological science·2002

Same author

Perception of spatiotemporal random fractals: an extension of colorimetric methods to the study of dynamic texture.

Journal of the Optical Society of America. A, Optics, image science, and vision·2001

Search research articles

Related Experiment Video

Updated: Jul 24, 2026

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

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

Published on: August 5, 2016

The dynamic specification of surfaces and boundaries

D W Cunningham¹, T F Shipley, P J Kellman

¹Logicon Technical Services, Inc., Dayton, OH 45437, USA.

|November 3, 1998

Summary

Dynamic visual information alone can shape our perception of surfaces and edges. This study reveals how moving textures create perceived surfaces, influencing edge detection and object recognition.

Area of Science:

Visual Perception
Computational Neuroscience
Psychophysics

Background:

Spatiotemporal boundary formation, driven by sequential changes in texture elements, creates the perception of continuous moving forms.
This process is crucial for detecting moving objects that obscure background textures.
Prior research primarily focused on boundary and shape perception, with limited exploration of surface quality perception within this dynamic context.

Purpose of the Study:

To investigate if dynamic visual information, independent of static spatial cues, can determine surface perception.
To examine how dynamically specifying an extended surface affects edge perception.
To explore the interplay between boundary and surface perception in dynamic visual scenes.

Main Methods:

More Related Videos

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

Published on: December 16, 2019

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

Related Experiment Videos

Last Updated: Jul 24, 2026

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

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

Published on: August 5, 2016

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

Published on: December 16, 2019

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

Experiment 1 utilized a free-report procedure to assess surface perception based solely on dynamic visual cues.

Experiment 2 involved dynamically specifying an extended, opaque surface to evaluate its impact on edge perception.

Main Results:

Dynamic visual information was sufficient to determine the perceived appearance of a surface.
Dynamically specifying an extended, opaque surface significantly enhanced edge perception.

Conclusions:

Dynamic information plays a critical role in surface perception, extending beyond static spatial attributes.
The findings highlight the interconnectedness of surface and boundary perception.
Results have implications for understanding perceptual transparency and object recognition in dynamic environments.