> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:mythtv-users- > [EMAIL PROTECTED] On Behalf Of Matt > Sent: Tuesday, April 12, 2005 12:48 PM > To: Discussion about mythtv > Subject: Re: [mythtv-users] commercial flagging idea - > commercial"fingerprinting" > > On Apr 11, 2005 7:36 PM, Brad Templeton <[EMAIL PROTECTED]> wrote: > > > > Yup, you'll find threads (often including me) about man of these sorts > > of features. The long term version -- aggregating which parts of > programs > > people watch at normal speed and which they don't -- provides the only > > undefeatable commercial detection algorithm, unless you are among the > first > > to watch a show, but it's a long way off. Fingerprints based on > various > > video and audio fingerprinting -- or even easier, on closed caption text > when > > present -- is a lot easier. Some of these can actually be applied > without > > collaboration, in that once you have identified a budweiser commercial > by its > > closed caption text you can spot it again everywhere. (Of course not > all > > commercials have captions.) > > > > A _really_ fancy fingerprinting system could actually fingerprint shows > and > > notice when the same snippet of video appears in two different shows -- > almost > > always a commercial, but not always always -- and then cleverly delete > the > > redundant fragment and point to it. (Something myth can't yet do of > course but > > may be planned for the future.) One reason that's interesting is that > aside > > from spotting repeated commercials and repeated shows, it can also let > you > > browse the commercials and start learning what they are. Ie. some > people like > > to capture the movie trailers. Though web download is often a better > idea there. > > > > Hi Brad! > > How about this: Instead of fingerprinting the commercials, > fingerprint the show 30 seconds before and after commercials. > > For example. Users manually verify (and fix) detected commercial. > Those users that do that, then automatically run a fingerprint before > the start of the commercial cut and after the end of the commercial > cut (when the show is back from break). This fingerprint could then > identify the breaks in the show, not the commercials themselves. > > Also, the fingerprint alogrithm could include time information. > Obviously, shows (in America at least), have a set length between > commercial breaks. Each episode might be different, but this is not > determined by the individual broadcast stations, so someone watching > an episode of "Friends" in Texas will have the same ammount of time > between commercials as the person watching in New York. > > One show constantly see issues on is "Law & Order" where it comes > back from commercial, and will show a the black screen with the text > giving the location/date/time of where the scene is taking place... it > almost always gets cut off. Just another example :) > _______________________________________________ > mythtv-users mailing list > [email protected] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[DC] I thought you were just working out the timing of the adds themselves (I assume all tv channels break at the same spot in a show) Not actually trying to identify the show themselves. Cheers, Dean
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