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alanlukezic / csr-dcf

Discriminative Correlation Filter with Channel and Spatial Reliability
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What is channel? #16

Closed shi-yan closed 5 years ago

shi-yan commented 5 years ago

Hello there,

I have a question regarding the meaning of "channel". I thought it meant the RGB channel, but after looking at the video of channel reliability weights visualization, there are so many of them. I thought there should be only 3 weights, one for each color channel.

If there are so many of them, then, channel can't be the RGB channel.

Selection_002

But by reading the code, I still think channel here is really the RGB channel, right?

Then how come the visualization shows so many weights?

Thanks,

alanlukezic commented 5 years ago

Even though input into the tracker is a RGB image, correlation filter is calculated on higher dimensional features. So, "channel" refers to a channel of multi-channel features: 18 channels of HoG + 1 channel of grayscale image + 10 channels of colornames feature image. Total feature channels is therefore 29, resulting in the same number of channel reliability weights.

shi-yan commented 5 years ago

Thank you for the answers!

I installed Matlab and now am trying to debug to understand this code deeper.