Abstract
A multidirectional edge-directed interpolation algorithm that features a region division method is proposed. In the proposed method, an interpolation pixel is newly modeled as a weighted sum of 12 neighboring pixels representing 12 different directions. Each weight is estimated by Wiener filter theory using geometric duality. The proposed method for dividing the interpolation region reduces the heavy computational complexity of the proposed model. Analyzing edge continuities, the model divides an image into three regions, and only strong edge regions are interpolated. Simulation results show that several directional edges are restored clearly in a subjective test, with fair performance in an objective test.
| Original language | English |
|---|---|
| Article number | 040503 |
| Journal | Optical Engineering |
| Volume | 51 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 Apr 1 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Engineering(all)
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Yun, Y., Bae, J., & Kim, J. (2012). Multidirectional edge-directed interpolation with region division for natural images. Optical Engineering, 51(4), [040503]. https://doi.org/10.1117/1.OE.51.4.040503