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PIRM Challenge on Perceptual Image Enhancement on Smartphones: Report

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arxiv 1810.01641 v1 pith:QTSH7M6O submitted 2018-10-03 cs.CV

PIRM Challenge on Perceptual Image Enhancement on Smartphones: Report

Andrey Ignatov , Radu Timofte , Thang Van Vu , Tung Minh Luu , Trung X Pham , Cao Van Nguyen , Yongwoo Kim , Jae-Seok Choi
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Munchurl Kim Jie Huang Jiewen Ran Chen Xing Xingguang Zhou Pengfei Zhu Mingrui Geng Yawei Li Eirikur Agustsson Shuhang Gu Luc Van Gool Etienne de Stoutz Nikolay Kobyshev Kehui Nie Yan Zhao Gen Li Tong Tong Qinquan Gao Liu Hanwen Pablo Navarrete Michelini Zhu Dan Hu Fengshuo Zheng Hui Xiumei Wang Lirui Deng Rang Meng Jinghui Qin Yukai Shi Wushao Wen Liang Lin Ruicheng Feng Shixiang Wu Chao Dong Yu Qiao Subeesh Vasu Nimisha Thekke Madam Praveen Kandula A. N. Rajagopalan Jie Liu Cheolkon Jung
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classification cs.CV
keywords challengeenhancementimagesmartphonesperceptualfirstmeasuredmodels
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This paper reviews the first challenge on efficient perceptual image enhancement with the focus on deploying deep learning models on smartphones. The challenge consisted of two tracks. In the first one, participants were solving the classical image super-resolution problem with a bicubic downscaling factor of 4. The second track was aimed at real-world photo enhancement, and the goal was to map low-quality photos from the iPhone 3GS device to the same photos captured with a DSLR camera. The target metric used in this challenge combined the runtime, PSNR scores and solutions' perceptual results measured in the user study. To ensure the efficiency of the submitted models, we additionally measured their runtime and memory requirements on Android smartphones. The proposed solutions significantly improved baseline results defining the state-of-the-art for image enhancement on smartphones.

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