Loading ISR and video data at same time using GeoDataMatlab

gistfile1.txt

Loading ISR data and AVI video at the same times from disk
Michael Hirsch

My first thought on finding the nearest neighbor in time between instruments 
is to use interp1().

Let's say I have a radar that samples once every three seconds, and a camera that samples
once per second. The code below is done in Matlab/Octave.

```
t_isr = [0,3,6,9,12];
t_vid = 0:12;

tnew_isr = interp1(t_isr,t_isr,t_vid,'nearest');
```

tnew_isr is the time of the ISR to playback for each video frame. Again there is
probably a better way to do this, but for now it's sufficient to do:

```
vid = VideoReader('myvid.avi');

for i=1:length(t_vid)  
    img = readFrame(vid);
    
    %ind_isr = find(tnew_isr(i)==t_isr,1,'first'); % get index of isr for this time
    %load ISR data for this time via GeoDataMatlab

end 

```