3 ms·
What is the output of LIDAR ? A point cloud or stripes ? What are the specs of the output of a LIDAR such a Velodyne or this one ?
by deepnet 9y ago
What is the output of LIDAR ? A point cloud or stripes ?
What are the specs of the output of a LIDAR such a Velodyne or this one ?
- nix0n 9y agoGenerally LIDAR outputs a point cloud. Velodynes tend to output very stripey point clouds. Edit to add more info: the Puck's data sheet [0] claims a range of 100m and 300,000 points per second. [0] http://velodynelidar.com/docs/datasheet/63-9229_Rev-F_Puck%20_Spec%20Sheet_Web.pdf http://velodynelidar.com/docs/datasheet/63-9229_Rev-F_Puck%2...
- timdorr 9y agoThe front page video on their site gives a good visual on their output: https://www.luminartech.com https://www.luminartech.com The rainbow colors are, of course, optional.
- joshvm 9y agoIt's a point cloud, but you get stripes because of the way the systems scan. Unless you're using a flash LIDAR (mucho dinero), all LIDAR are single point sensors which have to be scanned. That is, you send out a pulse of light and a single photodiode detects the return signal. A Velodyne LIDAR has up to 64 rx/tx pairs arranged into a grid which is rotated rapidly, so you end up imaging a series of rings around the sensor. Specs - the best LIDAR systems scan at around 1Mpt/second over a full hemisphere. The Velodyne system gives you around 20-30k measurements in the field of view a typical car camera. Accuracy is centimeter level. Stripes are produced by laser triangulation systems, but they're not true LIDAR. You project a line and look at how the image of it shifts compared to a known distance.