Patent ID: 11914374
Assignee: NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC
Field: Control (Instruments)
Classification: CPC G  B  F | IPC B  F  G

Claim 9:
10. The imaging system of claim 8, wherein the first image is a an image of the sun directly acquired by the camera; and further comprising determining a reflectance ratio based on the first image having an intensity Idirect, and the second image having an intensity Ireflected; and estimated the reflectance ratio by summing a plurality of intensity values for the second image and for the first image;
and computing the reflectance ratio ρ, wherein ρ is defined as:, ρ
  =
  
   ∑
   
    
     I
     reflected
    
    /
    
     ∑
     
      
       I
       direct
      
      .