Tobi Delbruck wiki

This material is for Tobi Delbruck's part of the block course on Computational Neuroscience for biology students taught by http://www.ini.uzh.ch.

• The assignment
• Lecture slide handouts
• Paper on the silicon retina
• Paper on the Physiologist's Friend chip
• The silicon retina dynamic vision sensor
• The physiologist's friend project
• Adapative photoreceptor circuit

%% 
 
loadaerdat;  % loads retina data from a recorded .dat file. Raw addreses are allAddr, timestamps in us are allTs
 
%%
x=64;
y=64;
p=1;
 
ra=p+bitshift(x,1)+bitshift(y,8);  % compute the raw address of pixel x,y=64,64 with polarity=1 (on)
 
%%
ind=find(ra==allAddr); % find the indices of all the spikes from this pixel
allTs(ind) % print the timestamps
 
 
 
%% iterate of a block of pixels and store the number of spikes from each pixel in a vector c, then histogram these counts
c=[];
 
for i=0:1    
for t=48:96
 
    x=t;
    y=t;
    p=i;
 
    ra=p+bitshift(x,1)+bitshift(y,8);
 
 
    ind=find(ra==allAddr);
    res=allTs(ind);
    c=[c length(ind)];
end
end