And is there a way to select the top N HoG Descriptors from the flattened 
array?

On Sunday, 24 July 2016 14:59:04 UTC+1, Michael O'Brien wrote:
>
> Hi all,
>
> I'm new to computer vision/machine learning and I was hoping I could ask 
> the community for some advise. I've calculated HoG descriptors for frames 
> in a video but I'm not sure how best to group/join/??? them so I can then 
> run Kmeans clustering on them. I'm hoping to use the (Visual) Bag of Words 
> method to classify using random forrests but I'm a novice when it comes to 
> ndarrays and not sure of the correct terminology.
>
> I know the HoG descriptors are flattened arrays but in order to cluster 
> the frames/image descriptors I would need to group all the descriptors 
> together. What is the best way to create a data structure suitable for 
> kmeans when you have 100,000's of individual descriptors and do I need to 
> pre-process the ndarrays ?
>
> Michael
>

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