A novel hybrid method using Adaptive Wiener Filter and Example-based Approaches for aerial image super-resolution

Dwarakanath, K.N.V.S.D.; Sameer, G. Sai; Khanna, Srikanth; Chandrasekaran, V.

doi:10.1109/iccsp.2015.7322798

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, image super-resolution (SR) is an illposed task, which means that there are multiple HR solutions corresponding to a single LR image. To mitigate this problem, many classical SR approaches have been proposed in the past, including interpolation-based [4], reconstruction-based [5], and example-based methods [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Single‐image super‐resolution using lightweight transformer‐convolutional neural network hybrid model

Liu

Yue

Han

et al. 2023

IET Image Processing

View full text Add to dashboard Cite

With constant advances in deep learning methods as applied to image processing, deep convolutional neural networks (CNNs) have been widely explored in single‐image super‐resolution (SISR) problems and have attained significant success. These CNN‐based methods cannot fully use the internal and external information of the image. The authors add a lightweight Transformer structure to capture this information. Specifically, the authors apply a dense block structure and residual connection to build a residual dense convolution block (RDCB) that reduces the parameters somewhat and extracts shallow features. The lightweight transformer block (LTB) further extracts features and learns the texture details between the patches through the self‐attention mechanism. The LTB comprises an efficient multi‐head transformer (EMT) with small graphics processing unit (GPU) memory footprint, and benefits from feature preprocessing by multi‐head attention (MA), reduction, and expansion. The EMT significantly reduces the use of GPU resources. In addition, a detail‐purifying attention block (DAB) is proposed to explore the context information in the high‐resolution (HR) space to recover more details. Extensive evaluations of four benchmark datasets demonstrate the effectiveness of the authors’ proposed model in terms of quantitative metrics and visual effects. The proposed EMT only uses about 40% as much GPU memory as other methods, with better performance.

show abstract