An Efficient Technique for Image/Video Super Resolution
Date Issued
2009
Date
2009
Author(s)
Chang, Chen-Wei
Abstract
Nowadays, the most serious drawback of super-resolution (SR) is the long processing time and most of methods of SR do not consider the content of the images. Hence, the proposed method focuses on applying different methods to different contents so that the computational complexity can be greatly reduced and the output image quality still remain satisfactory. First, a single image is divided into several 8x8 blocks and then those blocks are classified into three groups in DCT domain, which are flat region, complex area and others. The different methods are, then, processed on different types of blocks. The proposed method is further applied to the video. In a video stream, not only the spatial information but also the temporal correspondence can be taken into consideration. In a group of picture (GOP), the procedure of enhancing the resolution of a block of current frame can utilize the corresponding block of the reference image. The experimental results show that the proposed method provides an efficient way to upsample images and videos with good visual quality.
Subjects
Super-resolution
Block-based
Enlargement
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-98-R96922080-1.pdf
Size
23.32 KB
Format
Adobe PDF
Checksum
(MD5):e49bb267a8ef4aa589771bc1f5b6905d