Wavelet-Based Image Interpolation in Lifting Structure
碩士 === 國立成功大學 === 資訊工程學系 === 102 === A floating-point wavelet-based and an integer wavelet-based image interpolations in lifting structures and polynomial curve fitting for image resolution enhancement are proposed in this thesis. The proposed prediction methods estimate high-frequency wavelet coeff...
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| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/rbbpz7 |
| Summary: | 碩士 === 國立成功大學 === 資訊工程學系 === 102 === A floating-point wavelet-based and an integer wavelet-based image interpolations in lifting structures and polynomial curve fitting for image resolution enhancement are proposed in this thesis. The proposed prediction methods estimate high-frequency wavelet coefficients of the original image on the available low-frequency wavelet coefficients, so that the original image can be reconstructed by using the proposed prediction method. To further improve the reconstruction performance, we use polynomial curve fitting to build relationships between actual high-frequency wavelet coefficients and estimated high-frequency wavelet coefficients. Results of the proposed prediction algorithm for different wavelet transforms are compared to show the proposed prediction algorithm outperforms other methods.
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