Lee & Shin
 
1. A one or two sentence summary of the paper.
   Design of filters for orientation data that can be computed
efficiently.
 
2. A one or two sentence description of the problem the paper is trying
to solve.
   There hasn't been much research in manipulating orientation
orientation data.
3. A one of two sentence description of the method used to solve the
problem.
   Used Linear Time-Invariant filtering to do orientation data filtering.
 
4. A list of short (approx one sentence) descriptions of the key ideas of
the paper.
   Described how to create smoothing, blurring, sharpening filters.
 
5. A list of short (approx one sentence) descriptions of the
contributions of the paper.
   Described an efficient method that gives coordinate-invariance,
   time-invariance, and symmetry.
 
6. Any questions that the paper raises for you. This might be some flaw
that they do not address, something that is unclear, some piece of
background knowledge that you don't have that would help you understand
the paper, ...
   I need to re-read this paper, I'm lost. :(