Dense Pixel-wise Micro-motion Estimation of Object Surface by using Low Dimensional Embedding of Laser Speckle Pattern

10/31/2020
by   Ryusuke Sagawa, et al.
0

This paper proposes a method of estimating micro-motion of an object at each pixel that is too small to detect under a common setup of camera and illumination. The method introduces an active-lighting approach to make the motion visually detectable. The approach is based on speckle pattern, which is produced by the mutual interference of laser light on object's surface and continuously changes its appearance according to the out-of-plane motion of the surface. In addition, speckle pattern becomes uncorrelated with large motion. To compensate such micro- and large motion, the method estimates the motion parameters up to scale at each pixel by nonlinear embedding of the speckle pattern into low-dimensional space. The out-of-plane motion is calculated by making the motion parameters spatially consistent across the image. In the experiments, the proposed method is compared with other measuring devices to prove the effectiveness of the method.

READ FULL TEXT
POST COMMENT

Comments

There are no comments yet.

Authors

page 2

page 10

page 11

page 13

page 14

03/18/2019

EV-IMO: Motion Segmentation Dataset and Learning Pipeline for Event Cameras

We present the first event-based learning approach for motion segmentati...
04/25/2019

Indoor dense depth map at drone hovering

Autonomous Micro Aerial Vehicles (MAVs) gained tremendous attention in r...
06/08/2017

Causes and Corrections for Bimodal Multipath Scanning with Structured Light

Structured light illumination is an active 3-D scanning technique based ...
03/14/2016

A Novel Method for Extrinsic Calibration of a 2-D Laser-Rangefinder and a Camera

We present a novel solution for extrinsically calibrating a camera and a...
11/29/2021

Motion-from-Blur: 3D Shape and Motion Estimation of Motion-blurred Objects in Videos

We propose a method for jointly estimating the 3D motion, 3D shape, and ...
04/06/2021

Visual Vibration Tomography: Estimating Interior Material Properties from Monocular Video

An object's interior material properties, while invisible to the human e...
12/11/2016

A Novel Motion Detection Method Resistant to Severe Illumination Changes

Recently, there has been a considerable attention given to the motion de...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.