Interpolating sampled contours in 3-D: analyses of variability and bias
Related Experiment Video
Updated: Sep 29, 2026

Meso-Scale Particle Image Velocimetry Studies of Neurovascular Flows In Vitro
Published on: December 3, 2018
Paul A Warren1, Laurence T Maloney, Michael S Landy
1Department of Psychology & Center for Neural Science, New York University, 6 Washington Place, New York, NY 10003, USA.
Abstract:
In two experiments, we examined how observers interpolated the missing parts of sampled, planar contours in 3-D space. We varied (1) contour type (linear or parabolic), (2) orientation of the plane containing the contour and (3) the number of points on a sampled contour.Interpolation performance was very accurate, comparable to results from Vernier tasks. Setting variability was highest along the line of sight and for the parabolic contour. Setting variability did not decrease with increasing number of points on either contour, suggesting that observers do not use all available, relevant information in this task.
Related Concept Videos
Reconstruction of Signal using Interpolation
Sampling Methods: Overview
In analytical chemistry, the choice of sampling...
Sampling Plans
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Sampling Continuous Time Signal
In the...
Variability: Analysis
The range is a simple measure of variability, indicating the difference between the highest and...
Sampling Methods: Sample Types
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
