High-accuracy sub-pixel motion estimation from noisy images in Fourier domain.

IEEE Trans Image Process

Digital Media and Systems Research Institute, University of Bradford, UK.

Published: May 2010

In this paper, we propose a new method for estimating sub-pixel motion via exploiting the principle of phase correlation in the Fourier domain. The method is based on linear weighting of the height of the main peak on the one hand and the difference between its two neighboring side-peaks on the other. Using both synthetic and real data we show that the proposed method outperforms many established approaches and achieves improved accuracy even in the presence of noisy samples.

Download full-text PDF

Source
http://dx.doi.org/10.1109/TIP.2009.2039056DOI Listing

Publication Analysis

Top Keywords

sub-pixel motion
8
fourier domain
8
high-accuracy sub-pixel
4
motion estimation
4
estimation noisy
4
noisy images
4
images fourier
4
domain paper
4
paper propose
4
propose method
4

Similar Publications

This study demonstrates high volume rate bistatic 3-D vascular strain imaging, to overcome well-known challenges caused by the anisotropic resolution and contrast inherent to ultrasound imaging. Approach. Using two synchronized 32x32 element matrix arrays (3.

View Article and Find Full Text PDF

As the primary variable load of bridges, vehicle load is an important parameter for bridge health monitoring. However, traditional Weigh-in-Motion (WIM) systems and the commonly used method of placing sensors on the bridge are challenging to apply in load monitoring for many small and medium-sized bridges. Therefore, this paper proposes a bridge vehicle load identification method based on traffic surveillance video data.

View Article and Find Full Text PDF

As a non-contact method, vision-based measurement for vibration extraction and modal parameter identification has attracted much attention. In most cases, artificial textures are crucial elements for visual tracking, and this feature limits the application of vision-based vibration measurement on textureless targets. As a computation technique for visualizing subtle variations in videos, the video magnification technique can analyze modal responses and visualize modal shapes, but the efficiency is low, and the processing results contain clipping artifacts.

View Article and Find Full Text PDF

Adaptive robotic system for the inspection of aerospace slat actuator mount.

Front Robot AI

June 2024

School of Computing and Built Environment, Mechanical Engineering Department, Glasgow Caledonian University, Glasgow, United Kingdom.

Robotics uptake in the aerospace industry is low, mainly due to the low-volume/high-accuracy production that aerospace manufacturers require. Furthermore, aerospace manufacturing and assembly sites are often unstructured environments not specifically suitable for robots to operate in. This paper introduces a robotic visual inspection system using off-the-shelf components able to inspect the mounting holes for wing slat actuators without the need for fixed-coordinate programming; the part just needs to be left within reach of the robot.

View Article and Find Full Text PDF

Room temperature semiconductor radiation detectors (RTSD) for X-ray and -ray detection are vital tools for medical imaging, astrophysics and other applications. CdZnTe (CZT) has been the main RTSD for more than three decades with desired detection properties. In a typical pixelated configuration, CZT have electrodes on opposite ends.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!