Often when processing satellite imagery clipping the data to an AOI makes sense. If you just want to build up a map of one area or use it for statistics then clipping is a standard part of a GIS process. Finding reliable data to clip to, or search with, is harder than it should be.… Read More »Using OpenStreetMap to clip satellite data
This week Planet successfully launched 88 of its doves, taking another massive step forward in mapping the entire planet daily. I have written about the dramatic increase in temporal resolution data several times in the past. It is worth repeating though – I think – that while Remote Sensing is not new, the level of… Read More »Data, data everywhere
What is Big Data? Big data is a term for data sets that are so large or complex that traditional data processing application softwares are inadequate to deal with them. https://en.wikipedia.org/wiki/Big_data In an event this week in central London I heard big data described as “non-spreadsheet” data. I think Earth Observation (EO) data could fit… Read More »Earth Observation: Big Data
To enable a user to use space derived data without ever actually seeing a satellite image. To move from pixels to analytics. To break through the ‘that’s a nice image – but so what?’ barrier? To add value. I wrote about my thoughts on this last week; http://www.acgeospatial.co.uk/blog/six-thinking-hats-eo/ the need to move towards more than just… Read More »Using Earth Observation data without ever looking at a satellite image
I have previously written about automatically edge detecting. Using OpenCV is a nice way of quickly running the edge detect and getting some information back about the image. You can read about the Canny edge detection algorithm here Here is how Wikipedia details the process of the canny edge detection (if you didn’t click the… Read More »Reclassify and Numpy
I watched a video this week, a presentation given by Brian Boulmay of BP: It is well worth watching, he talks about BP’s One Map Platform. He wants to reach the whole community within his organisation with a map. There is an interesting quote mid-way through (I have paraphrased slightly below) “We queried all desktops… Read More »Reaching everyone with maps
In a zoo, animals, for the most part, are kept in separate enclosures. Some are big, some are small, some are aggressive carnivores, some are gentle (or at least appear to be). Different diets, sleep habits, space and health vulnerabilities mean separation is key. Most zoo animals have their own zoo keeper, someone to look… Read More »Data Management Zoo