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Aerial orthophoto of the Serpentine flood January 2011 - AEROmetrex

Aerial photogrammetric surveys to support emergency and disaster management in Australia

Australia experiences each year a range of natural disasters including floods, bushfires, server storms, landslides and earthquakes. Queensland and New South Wales have experienced an increasing number of flood events in the past few years. Both populated areas along the coast as well as isolated rural towns have been hit hard and emergency services have had a hard time dealing with these disasters. Floods are estimated to be the most costly natural disaster in Australia and cost local and state governments hundreds of millions. Read more

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25mm digital aerial photography taken over Adelaide

High Resolution Digital Aerial Imagery vs High Resolution Satellite Imagery – Part 1

The gap between these two usually complementary mapping technologies is getting smaller as both satellite and aerial imaging systems have benefited from great technology improvements in the last decade. These technologies can even overlap in terms of resolution, meaning that issues such as accuracy, acquisition and processing time need to be taken into account . It is more of a challenge to make informed decisions about which technology to choose for a mapping project. Nevertheless, each technology is alive and well and possess unique characteristics and strengths which need to be highlighted. Read more

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Building distortions present in a low quality orthophoto

Beware of imitators – Common issues present in low-quality orthophotos

It may seem churlish to have a go at the competition, but we have become increasingly concerned at the quality and utility of products being offered by the second-tier and lower contractors appearing in the aerial photography market. In a market where pricing is a sensitive issue, some of these companies are delivering cheap imitations. Agencies who commission these services are finding out too late that the product is not as described on the packet. Remember: It is a long wait for the next budget cycle.

Rather than name names, we will focus instead on the issues that separate the sheep from the goats, so to speak. Read more

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Recent Articles

30
Apr
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Survey of Radar imaging technologies – Satellite Constellations

Visible light only forms a small slice of the electromagnetic spectrum centred at yellow – we have evolved to see things the way we do due to the solar peak radiation being somewhere near yellow. Read more »

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17
Apr
Semaphore Tower

Rundle Street point cloud

Point cloud derived from vehicle based structure from motion platform. 5 Calibrated cameras mounted on our survey vehicle, point cloud generation routine a bit tightened up compared to those used for purely unstructured collection of photos. Read more »

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4
Apr
25mm

From the size of a mountain to the size of a 50 cents coin

Since the launch of the first Earth observation satellite in 1959, the world has witnessed incredible developments in terms of platform and sensors to observe the Earth. It is now possible to see virtually any part of our planet and distinguish objects the size of a mountain up to the size of a coin. Read more »

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27
Mar
Fly-through recap

Compilation of 3D animations over Australia generated from aerial photogrammetry

This is a compilation of short 3D fly-through generated from aerial photogrammetry.

High resolution aerial ortho photography have been draped over digital surface model.

Read more »

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22
Mar
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Aerial photogrammetry for the mining industry in Australia

Mining is a significant contributor to the Australian economy with exploitation sites all over the country. Investing in mining projects is a high-risk business and more than half of projects fail to deliver the expected return. Having accurate and timely geospatial data during all phases of a project is critical to increase chances of success, and failure to do so can have serious consequences. Read more »

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14
Mar
Gosses Bluff aerial photography draped over a digital surface model

Gosses Bluff meteor crater 3D animation

Gosse Bluff, about 200 km west of Alice Springs, in the Northern Territory, Australia, is one of the most significant impact structures in the world. It has a 5km diameter and was formed 142 millions years ago by the impact of an asteroid up to 2km in diameter. Read more »

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7
Mar
Aerial ortho photography of the Victoria floods March 2012 - AEROmetrex

Emergency aerial survey mapping over Victoria floods,Broken Creek, March 2012

The South-East of Australia has once more become a victim of devastating floods that have forced many residents to evacuate their homes. Regional townships in Victoria and New South Wales have been hit the most. AEROmetrex has been commissioned by the Victorian government to survey a large part of Victoria. AEROmetrex is a trusted supplier of aerial photography due to our extensive experience and efficiency during extremely time-sensitive disaster events. Read more »

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7
Mar
NASA Terra MODIS satellite over the Darling river 7 March 2012 NSW floods

NSW and Victoria floods March 2012 latest satellite imagery

The South-East of Australia has once more become a victim of devastating floods that have forced many residents to evacuate their homes. Regional townships in Victoria and New South Wales have been hit the most.

The following satellite images Read more »

7
Mar
River Contamination in a Colour Near Infrared aerial imagery - AEROmetrex

Colour infrared aerial imagery (Part 1)

All medium and large-format digital aerial camera systems can acquire information in the visible part of the electromagnetic to produce natural colour images using their Red, Green and Blue channels. These camera systems are also able to acquire data from an invisible part of the electromagnetic spectrum called near-infrared (NIR). Read more »

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1
Mar
Blue lake, mount gambier, 3d model and aerial photo - AEROmetrex

The Blue Lake, Mount Gambier 3D animation generated from aerial photogrammetry

The famous Blue Lake in Mount Gambier, South Australia, occupies one of the craters of the extinct volcano which last erupted 5000 years ago.

From November to late March, the Blue lake takes a beautiful and intense deep turquoise color due to a special algae that grow in the lake. The lake turns dark blue-grey for the rest of the year. Read more »

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