แนวคิดหลัก
The authors propose GAMA-IR, an image restoration network that achieves state-of-the-art performance while being significantly faster and more memory-efficient than existing methods.
บทคัดย่อ
The paper introduces the GAMA-IR network for efficient image restoration. Key highlights:
- GAMA-IR is designed to minimize latency and memory consumption on GPUs, in contrast to previous works that focused on metrics like FLOPs or parameter count.
- The network utilizes a novel Global Additive Multidimensional Averaging (GAMA) block that captures global dependencies efficiently, enabling a shallow network to have a large receptive field.
- Experiments show that GAMA-IR achieves comparable or better performance than state-of-the-art models on tasks like denoising, deblurring, and deraining, while being 2-10 times faster.
- Ablation studies demonstrate the importance of the GAMA block in improving performance with minimal computational overhead.
- The authors provide a comprehensive evaluation on various datasets and compare GAMA-IR to recent high-performing restoration networks in terms of speed, memory, PSNR, and SSIM.
สถิติ
GAMA-IR achieves 40.41 dB PSNR on the SIDD denoising dataset, exceeding the state-of-the-art by 0.11 dB.
On the GoPro deblurring dataset, GAMA-IR reaches 33.15 dB PSNR, outperforming the previous best.
For deraining on Rain100H, GAMA-IR obtains 33.23 dB PSNR, significantly better than competing methods.
คำพูด
"GAMA-IR can compete with state-of-the-art models at higher speed as seen in Figure 1."
"The key to achieving state-of-the-art performance at significantly higher speed than competing networks is to limit the depth of the network."
"Our GAMA block enables a large receptive field even when used in a shallow network, therefore enabling state-of-the-art performance at higher speed."