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dc.contributorChia-Hung Yehen_US
dc.contributor.advisorMin-Kuan Changen_US
dc.contributor.authorSu, Ming-Chengen_US
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dc.description.abstractIn this paper, we propose an adaptive image enlargement scheme based on iterative back-projection. Initial estimates of each enlarged image can be individually created from the spatial and temporal domains by using sub-pixel interpolation and sub-pixel motion estimation. Then, based on the initial estimates and image content, reconstructed images are derived by using a modified iterative back-projection technique and fused into a enlarged image. Finally, a low-pass filter as a post-processing is applied to reduce the blocking artifacts in the reconstructed high-resolution images. Our experiment results demonstrate that, in terms of PSNR and NQM, the proposed scheme is superior to existing methods.en_US
dc.description.tableofcontents1. Introduction...1 2. System description...5 A. Problem formulation...5 B. Architecture of proposed scheme...6 3. The Proposed Image Enlargement Scheme...9 A. Image registration and initialization...9 B. Modified iterative back-projection algorithm...11 B.1 Basic structure...12 B.2 Detailed compensation rule...14 C. Image fusion and post-processing...17 4. Experiment Results...18 A. Performance evaluation...19 B. Comparison with [12] and [37]...23 3. Conclusion...38 3. References...39en_US
dc.subjectresolution enhancementen_US
dc.subjectiterative back projectionen_US
dc.titleVideo resolution enhancement technique based on iterative back-projection and sub-pixel motion estimationen_US
dc.typeThesis and Dissertationzh_TW
item.openairetypeThesis and Dissertation-
item.fulltextno fulltext-
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