Sept. 14th 2018   
 Munich, Germany

Workshop and Challenge on
Perceptual Image Restoration
and Manipulation

in conjunction with ECCV 2018

The Challenges:

The Workshop

A key goal in image restoration, manipulation and generation, is to produce images that are visually appealing to human observers. In recent years, there has been great interest as well as significant progress in perceptually-aware computer vision algorithms. However, many works have observed a fundamental disagreement between this recent leap in performance, as evaluated by human observers, and the objective assessment of these methods by common evaluation metrics (e.g. PSNR, SSIM). This workshop will revolve around two main themes: (i) How to design algorithms which satisfy human observers, and (ii) How to evaluate the perceptual quality of such algorithms.

Invited talks

The workshop will host invited talks by William Freeman (MIT, Google AI), Eli Shechtman (Adobe Research), Tomer Michaeli (Technion), Jiaya Jia (CUHK) and Kavita Bala (Cornell).


Three challenges on perceptual super-resolution, image enhancement on smartphones, and hyperspectral reconstruction will compare and rank perceptual-quality based methods.

Poster session

Exciting new results of recent and ongoing research projects will be presented in a poster session.

The Challenges

The PIRM challenges will promote perceptual image restoration. State-of-the-art methods in terms of perceptual quality (e.g. SRGAN) are rated poorly by "simple" distortion measures such as PSNR and SSIM. Therefore, in contrast to previous challenges, the evaluation and ranking will be done in a perceptual-quality aware manner based on [Blau and Michaeli, CVPR'18]. This unified approach quantifies the accuracy and perceptual quality of algorithms jointly, and will enable perceptual-driven methods to compete alongside algorithms that target PSNR maximization.

The challenge results will be announced at the workshop. Challenge participants may submit papers for the ECCV workshop proceedings. Papers will be accepted based on: (i) academic quality, and (ii) challenge ranking.


Challenge on 4x super-resolution from a single-image.

Enhancement on Smartphones

Challenge on enhancing photos on mobile phones.

Hyperspectral reconstruction

Challenge on reconstrcuting hyper-spectral images.

Invited Speakers

William T. Freeman

MIT, Google AI

Eli Shechtman

Adobe Research

Tomer Michaeli


Jiaya Jia


Kavita Bala








Invited talk - Jiaya Jia (CUHK)


Invited talk - Eli Shechtman (Adobe Research)




Poster session and coffee break


Invited talk - William Freeman (MIT, Google AI)


Invited talk - Tomer Michaeli (Technion)


The PIRM challenges


Invited talk - Kavita Bala (Cornell)



Call for Posters

A poster session will be held at the workshop. We invite submissions of posters presenting work on perceptual-quality driven algorithms, methods for evaluating perceptual quality, or any other related topic.

Posters on work submitted elsewhere (including the ECCV main conference) or unpublished preliminary work can be submitted to the poster session. All accepted posters will be presented at the workshop in the morning of September 14th. Note that accepted posters\abstracts will not appear in the ECCV proceedings.


To submit your poster, please send an extended abstract of 2-3 pages by email to . The email must include the poster title, authors, affiliations, and main contact email. Submission deadline is July 29th.


Submissions will be reviewed by the workshop organizers. Accepted posters will be presented at the workshop.


Posters will be accepted in a rolling manner, i.e. if you submit your abstract before the deadline, acceptance may be decided earlier. Acceptance notification will be sent at latest by August 1st.

Important dates



May 1st

Validation data released - Done!

July 18th

Test data released

July 25th

Final results submission deadline

July 29th

Poster submission deadline

August 1st

Challenge results released to participants
Poster decisions released

August 22nd

Paper submission deadline
(optional for challenge participants only)

September 5th

Notification of accepted papers

September 14th

PIRM 2018 Workshop


Camera-ready deadline

* All dates refer to 11:59 PM CET



Lihi Zelnik-Manor

Technion, Israel

Tomer Michaeli

Technion, Israel

Radu Timofte

ETH Zurich, Switzerland

Roey Mechrez

Technion, Israel

Yochai Blau

Technion, Israel


Andrey Ignatov

ETH Zurich, Switzerland

Antonio Robles-Kelly

Australian National University and Date61-CSIRO

Mehrdad Shoeiby