Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Discrete Cosine Transform

  • 24-02-2009 4:47am
    #1
    evil-monkey
    Closed Accounts Posts: 1,663 ✭✭✭


    I have to say that I am well and truly stumped :o

    Mathematics is usually one of my stronger points, but we recently encountered discrete cosine transform in a lecture. Been doing a bit of research on it, and can't get my head around it.

    Can anybody explain to me the basic principles of why this is used?? And how it works?? And what's the difference between discrete cosine transform and modified discrete cosine transform?? From what I could understand of them, I couldn't seem to see any difference.

    I don't need any indepth explanation as it's not examinable. Just the above will do. Just don't like when I don't understand something. Like, why cosine? I was told because cosine was more efficient for the audio and video etc etc - but why? I can't just accept that "it's more efficient"...is that a stupid question? Surely sine functions would suffice...

    Thanks in advance :D


Advertisement