Isla Verde Video Camera 3 Variance Image

Detailed Description

Image from video camera at Isla Verde in San Juan, Puerto Rico, looking north-northwest. Every half hour during daylight hours, the camera shoots video for 10 minutes. This variance image shows the standard deviation of pixel intensity throughout the video frames, useful for determining how much variation or movement is occurring at a given location. [Larger version]

Click for timestamp of latest photo shown here.


Shawn Harrison