Other

Commonwealth Scientific and Industrial Research Organisation

Mark Berman

Ian Barry Macintyre

Michael John Best

Ryan Lagerstrom

Robert Dunne

Patrick Dale Kearney

James Laurie Gardner

David Norman Pratt

Daniel Peter Moore

Ronald Allan Ferguson

Ronald Jones

Michael James Buckley

Haari Taplo Kiiveri

Paul Richard Turtle

Joseph Edmond Breen

A method of identifying endmember spectral values from multispectral image data, where each multispectral data value is equal to a sum of mixing proportions of each endmember spectrum. The method comprises the steps of processing the data to obtain a multidimensional simplex having a number of vertices equal to the number of endmembers. The position of each vertex represents a spectrum of one of the endmembers. Processing the data is conducted by providing starting estimates of each endmember spectrum for each image data value. The mixing proportions for each data value is estimated from estimates of the spectra of all the endmembers. The spectrum of each endmember is estimated from estimates of the mixing proportions of the spectra of all the endmembers for each image data value. The estimation steps are repeated until a relative change in the regularised residual sum of squares is sufficiently small. The regularised residual sum of squares includes a term which is a measure of the size of the simplex.

Method of identifying endmember spectral values from hyperspectral image data

A system for acquiring, processing, storing, analyzing and reporting data relating to the condition of a road or other pavement surface ( ) in real time. The system includes a digital camera ( ) mounted on a vehicle and positioned relative to a pavement surface ( ) so as to capture images of the pavement surface ( ) while the camera ( ) is moving relative to the surface ( ). The system also includes an illumination assembly ( ) to illuminate the region from which an image is taken and an interface between the digital camera ( ) and at least one computer. The system also includes a processor in the computer for processing the images to detect and classify cracks and other pavement surface ( ) features.

Road pavement deterioration inspection system

Growing community of inventors

Pymble, Australia

Mark Berman