Domain: leica-geosystems.com
Stories and comments across the archive that link to leica-geosystems.com.
Comments · 15
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Re:Satellites?
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Re:I have two answers for you
https://en.wikipedia.org/wiki/Gigabit_Ethernet
Hardwire - CAT 5 cable is not likely to work consistently, Cat 6 and Cat 7 cable is recommended, shorter is better, but 100m is possible.
Fiber to your PC also works, but the fiber modem cards are pricey.https://en.wikipedia.org/wiki/Gi-Fi
https://en.wikipedia.org/wiki/Gi-Fi
https://en.wikipedia.org/wiki/Wireless_Gigabit_Alliance
https://en.wikipedia.org/wiki/Wireless_Gigabit_Alliance
http://www.tomshardware.com/reviews/wi-fi-802.11ac-router,3386.html
http://www.tomshardware.com/reviews/wi-fi-802.11ac-router,3386.htmlThese new WIFI devices are fast, but much slow than a cable connection.
However unless you are trying to store point cloud images in the cloud it is unlikely you will tax a 802.11ac wifi link.Point cloud cameras and the related infrastructure are expensive, both in data size and $$
leica-geosystems P20 $115,000.00. -
Re:PrivacyHere's one that I have used while land surveying:
I've seen sub-centimeter accuracy while using this device. Although it's a little pricey (approx 30k if i remember), it's still a civilian unit.
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Re:Surveyors are going to start having problems...
Doesn't matter.. you aren't going to get better than 10m accuracy without DGPS and 1m with it. Surveys have to be right to centimetres - no GPS can do that (possibly some of the military stuff, but I'd be surprised if even they were that accurate).
You don't need military GPS to be that accurate, it can be done with differential phase GPS. See: here. By using a fixed base station at a location with known coordinates, one can expect to see accuracies in the 1 to 2 cm range as long as the receiver is within 10's of km from the base station. There are several manufacturers who make gear that can achieve this level of accuracy, see Leica, Magellan, and Sokkia. I've been using Leica gear at work mostly, and have see ~1cm accuracy under good conditions pretty consistently. A lot of legal surveying in remote areas is done exclusively with GPS, especially in the northern parts of B.C and Alberta. I've done legal surveys with GPS in the Vancouver area, but getting high accuracy in urban areas is more difficult because of multi-path noise and qoor signal quality from obstructions such as buildings. Also people in the city get mad when you cut down trees to get better reception
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Re:A man with one clock...
There are already systems that make use of both the GPS and GLONASS simultaneously (see, for example, this Leica survey unit). Due to the previously small number of GLONASS sats in view, they probably don't give much more accurate results, however, having access to a greater number of satellites is useful when there are obstructions (e.g. trees) that would otherwise cause a very poor quality fix.
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It's not really a consumer scanner
http://gi.leica-geosystems.com/LGISub1x4x0.aspx
The normal model description says it's >3.0 OD, and they've upped the bit depth to 14. So you'll be probably getting more than enough data (film has its limits, too). I'd say that they've thought this through themselves.
These photos they are scanning are different from the ones scanned and released earlier to press, Internet, etc., because these are now targeted for research use also. -
Not Unique
Leica and a few others have been manufacturing this type of sensor for a while now.
http://www.leica-geosystems.com/corporate/en/ndef/ lgs_57627.htm
Sensors of this size are typically used in airborne photography, because they would be too expensive to launch into space (too much weight/power needed). The link above is to the ADS40, the previous iteration had a 112 megapixel ccd... this version (from the site) can capture about 100Gb per hour of flight. -
Just so we are clear.....
from the TFA.....
Google Earth will not replace high tech programs like AutoCAD or ESRI's ArcGIS
The topic missing from this discussion is a simple question: Where does all this data come from?.
You can't plan bike routes, model road trips, view cityscapes, etc. unless you have good data to start with. Neither Google Earth nor KML function to build geographic data. The tools for doing that are as follows: v
ArcGIS, for vector-based data and some imagery.
ERDAS IMAGINE, for imagery, and
for all you open source kiddies:
GRASS and GRASS for Macs
Without these basic development tools, client-side web apps like Google Earth don't exist. These data have a long history and complex standards for verification and use.
In a community normally so concerned with standards, metadata, etc., I am surprised by the Gee whiz view comparing Google Earth and similar client side apps. -
Re:Groan
The truth is that for decades, earth observing satellites have used pushbroom sensors. These sensors continuously sweep out an image, accumulating pixels 24/7, and some of them have up to eight wavebands (think "colors"). For example, Landsat 7 does 14 orbits per day, and takes 16 days to image the entire planet. Its view is 185km wide, with a combination of 15m and 30m pixels depending on the band. This works out to an image about 12000 pixels wide. To exceed the puny TNO 2.5 Gigapixel image, just accumulate a strip that's 208400 pixels (3125km) long. This is about a quarter of an orbit for the satellite, which happens in under 52 minutes (faster than the 70 minute TNO image). And as mentioned above, there are eight wavebands in the image, so it'll be well over 10 gigs.
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Re:Dense Camera Arrays for seeing through bushes
Not entirely true, Ive seen depth information captured using multiple scans from a laser system such as those used by Leica Geosystems (formerly Cyra) that could be combined with photgraphy to produce models that are accurate. Of course, there would be no way to get the rear of the object without changing position.
Also, the software is almost at a level with modern PC's where you could possibly have real-time results. At siggraph this year I saw a handheld scanner that could scan a human head and interpolate it as a 3d-character rendered in near-real-time. They said give it about three more years. Cool stuff. -
GIS + GPS it's a routine
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No info on satellite
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Re:Cooling glass
Here is a link that mentions it.
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Re:They're just using a SICK LMS on a tilt head
Even better 1000 points per second, and accurate to +/-.1mm at 10 meters... Cost & robustness tend to keep it out of the construction markets & limited to precision industrial metrology apps though.
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Re:It's not just about challenging the US military
Technically, you *can* use the two station system to land a plane. It works like this...
Receiver 1 is fixed. It is hooked into a computer system that outputs correction data in real time (RTK or real time kinematic), radio recievers coupled with another GPS receiver provide spatially correct location for both Horizontal (XY) and Vertical (Z). Many companies provide solutions for individual-level tracking.
Trimble
Leica