Presentation part of the course!
	This starts in 3 weeks
	Pick a research paper related to image analysis and present it
	It's ok if it's not on biological images!
	Pick a paper at least a week before presenting
	Google Scholar can help find one
	We've got a lot of people, so you'll only have about 18 minutes

Fixes for last time's example, demo with 2D working
	Cheat information:  Threshold of 160 mostly works
		To figure this out:  Print out pixel under event
	Wrapping around screen?
	Leaks and incomplete finding:  Both happen!
	It would be nice to see the leaks without waiting 3 hours!
		Doing this outside the UI thread

3D use:  This takes a while
	When I tried it, there was a leak, which made it take forever
	Maybe 3 hours or so!

Slowness in 3D:
	We've got two major problems:
		Not multithreading
		Python
	And one opportunity:
		The GPU
	This problem is not "embarrassingly parallel"
		We're using a shared data structure
		It *might* be thread-safe, but it also might not!
	A really simple idea:
		Each thread maintains it's own queue
		Initially, we start the 6 or 26 threads with separate queues
		Queues may have duplication, so we check color on entry AND exit
		CPU time loss from duplication will be less than for mutex, etc
		Avoids memory hotspots

Leak problem 1:  Boundary detection
	Just picking a threshold isn't really good enough

Ideas for boundary detection:
	1.  Set up an elaborate AI boundary detector
		This has worked in the past, with neural nets and such
	2.  Highlight the boundaries with a simple technique
		For example, subtract change in intensity to darken them
	3.  Tolerate the leaks
		Bicycles and slime
	We've tried a lot of other ideas here
	For example, using linear regression to follow boundaries
		This worked pretty good

Leak problem 2:  Stack alignment
	Demo with up/down on misaligned slice

Ideas for alignment problem:
	1.  Manually move or remove bad sections
		But lots of sections are a little bit off!
	2.  Run an alignment algorithm
		That can work
	3.  Remove/edit really bad slices, align others
		For publication, must be very clear about this process!