Generating high quality pan-shots from motion blurred videos

Nimisha, T M; Rajagopalan, A. N.; Aravind, R.

doi:10.1016/j.cviu.2018.05.008

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…Learning-based methods: Deep learning methods have given remarkable results for different image restoration tasks like deblurring [11]- [24], dehazing [25]- [28], inpainting [29]- [31], enhancement [32], super-resolution [33]- [40], bokeh rendering [41] etc., and many others. Likewise, several supervised networks are proposed for low-light image enhancement [7], [42]- [48] using pixel-wise loss functions.…”

Section: Introduction and Related Workmentioning

confidence: 99%

Illumination-Adaptive Unpaired Low-Light Enhancement

Kandula

Suin

Rajagopalan

2023

IEEE Trans. Circuits Syst. Video Technol.

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Supervised networks address the task of low-light enhancement using paired images. However, collecting a wide variety of low-light/clean paired images is tedious as the scene needs to remain static during imaging. In this paper, we propose an unsupervised low-light enhancement network using contextguided illumination-adaptive norm (CIN). Inspired by coarse to fine methods, we propose to address this task in two stages. In stage-I, a pixel amplifier module (PAM) is used to generate a coarse estimate with an overall improvement in visibility and aesthetic quality. Stage-II further enhances the saturated dark pixels and scene properties of the image using CIN. Different ablation studies show the importance of PAM and CIN in improving the visible quality of the image. Next, we propose a region-adaptive single input multiple output (SIMO) model that can generate multiple enhanced images from a single lowlight image. The objective of SIMO is to let users choose the image of their liking from a pool of enhanced images. Human subjective analysis of SIMO results shows that the distribution of preferred images varies, endorsing the importance of SIMO-type models. Lastly, we propose a low-light road scene (LLRS) dataset having an unpaired collection of low-light and clean scenes. Unlike existing datasets, the clean and low-light scenes in LLRS are real and captured using fixed camera settings. Exhaustive comparisons on publicly available datasets, and the proposed dataset reveal that the results of our model outperform prior art quantitatively and qualitatively.

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