Lidar – Accuracy Versus Resolution

Digital Coast GeoZone

[Update: In November 2014, ASPRS published new guidance for accuracy classes that includes recommendations for pulse spacing in addition to vertical accuracy.]

Resolution != Accuracy

It seems like every day I hear a statement about high-resolution lidar that bugs the heck out of me. I even hear it from our staff at the Center. So, I thought I’d write a little entry about it and see if any of them pick up on it. So, what I hear is, “We need high resolution lidar for X, Y, and Z.” Sometimes it’s for estimating sea level change impacts, sometimes it’s for habitat modeling; could be for nearly anything. While I do often hear it for sea level change, my example is wetlands delineation in relatively flat areas like South Carolina or Florida. To quote one friend (we’ll call him Randy) interested in wetlands:

It appears that most of it will be point spacing…

View original post 760 more words

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s