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Reduction of Artifacts using Projections. Young-Kyoo Hwang Jung-Jin Park. What is Artifacts? . Blocking Artifacts - Result in independent block process in codecs Ringing artifacts - Sharp oscillations along the edges. Blocking and Ringing Artifacts. What is projection?.
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Reduction of Artifacts using Projections Young-Kyoo Hwang Jung-Jin Park
What is Artifacts? • Blocking Artifacts - Result in independent block process in codecs • Ringing artifacts - Sharp oscillations along the edges
What is projection? Projection one of methods to minimize errors
What’s wrong? • Failed to do -45, +45 degree line processing and projection them. • Failed to find lamda parameter -> it’s nonlinear equation -> We used Newton’s method
Further study • Required for edge enhancement against edge’s smoothing ->we tried to enhance the edges, but it resulted in enhancing artifacts • Required to simplify the algorithm