Have you already been annoyed by text overlays watching TV programs? Or perhaps you already endured watching movies or series with subtitles in a language that you cannot read? Contribute to this contest to enhance the pleasure of watching video without any annoying overlays!
In the context of news media and video entertainment, broadcasting programs from various languages, such as news, series or documentaries, text overlays or encrusted texts (commercials or subtitles), reduce the visual attention and occlude parts of frames that decrease the performance of automatic understanding/captioning systems. In this track, we are looking at systems able to perform text removal in video sequences both accurately and fastly.
The objective of participants is to develop algorithms that can inpaint video frames that contain text overlays in various size, background, color, location. Participants will have access to a large dataset video clips in 128x128 RGB pixels, containing both encrusted subtitles (X/ folder) and without subtitles (Y/ folder). Participant will be required to submit an archive (zip file with no subfolder) containing the predicted mp4 video clips in 128x128, using ffmpeg arguments used in our baselines implemented in the provided starting kit. After the submission, the reconstructed video clips will be compared against the corresponding ground-truth in the pixel space to determine the quality of the reconstructions (cf Evaluation).
We provide a dataset and a starting kit as the following:
To evaluate the quality of the reconstruction we will use three usual metrics used in inpainting task (the average rank of these measures will be used to determine the winners). In the following, we list metrics formula for pairwise frame comparison. The final metrics for video clip quality estimation is the average over a fraction (20%) of video clip frames.
where xi and yi correspond to the pixel i of each image respectively. This measure is really simple, always positive and parameter-less.
where MAX_I is the maximum possible pixel value of the image.
where µ is the average of the image, σ the variance, σ_xy the covariance, and c1,c2 constants.
In addition to these classical inpainting metrics, we will measure the speed of video clip generation to encourage fast methods. At final phase (on the test set), we will ask the participants to submit their prediction code that we will run in a Docker on our server. We will produce an additional ranking based on a tradeoff between speed and accuracy of video clip generation. Ranking is measured by the average rank over all metrics.
Common terms used in these rules:
These are the official rules that govern how the ChaLearn Looking at People Image and Video inpainting 2018 contest promotion will operate. This promotion will be simply referred to as the “contest” or the “challenge” throughout the rest of these rules and may be abbreviated on our website, in our documentation, and other publications as ChaLearn LAP 2018
In these rules, “organizers”, “we,” “our,” and “us” refer to CHALEARN and "participant”, “you,” and “yourself” refer to an eligible contest participant.
This is a skill-based contest and chance plays no part in the determination of the winner(s). There are three tracks associated to this contest as described below:
The following metrics will be used to evaluate participant’s solutions: MSE, PSNR, DSSIM and WNJD. The average rank of these measures will be used to determine the winners
A new data set was designed for this video inpainting task, it consists of as a set of (X, Y) pairs where X is a 5 seconds video clip (containing encrusted text) and Y the corresponding target video clip (without encrusted text).
The evaluation for this track will consist on two parts. The first evaluation will qualify the quality of the reconstruction, and will be done by using MSE, PSNR and DSSIM. The average rank of these measures will be used to determine the winners. After that the speed of video clips generation will be measured to define a secondary ranking. After computing standard inpainting measures from participants' predictions, we will run the proposed algorithms on a limit amount of time. The number of processed video clips will be used to generate this ranking.
Evaluation in the synthetic data set will be performed with the following reconstruction error measures: peak signal-to-noise-ratio (PSNR) and the structural similarity (SSIM), the average rank of these measures will be used to determine the winners. Participants will be required to reconstruct the degraded fingerprint images in this set by using their developed algorithms and submit the reconstructed fingerprint images.
For the three tracks, eligible entries received will be judged using the criteria described above to determine winners.
Tentative Contest Schedule
The registered participants will be notified by email of any change in the schedule.
1st March, 2018: Beginning of the competition, release of development and validation data for both tracks.
20th May, 2018: Release of encrypted final evaluation data and validation labels. Participants can start training their methods with the whole data set.
1st June, 2018: Deadline for code submission.
4th June, 2018: Release of final evaluation data decryption key. Participants start predicting the results on the final evaluation data.
7th June, 2018: End of both tracks of the competition. Deadline for submitting the predictions over the final evaluation data. The organizers start the code verification by running it on the final evaluation data.
10th June, 2018: Deadline for submitting the fact sheets.
15th June, 2018. Release of the verification results to the participants for review. %Participants are invited to follow the paper submission guide for submitting contest papers.
8th July, 2018. WCCI 2018 Inpainting challenge, dissemination of results, award ceremony.
You are eligible to enter this contest if you meet the following requirements:
You are an individual or a team of people desiring to contribute to the tasks of the challenge and accepting to follow its rules; you are employed by a research laboratory, startup or other legal entity having a scientific research department or activity ; and
You are NOT a resident of any country constrained by US export regulations included in the OFAC sanction page http://www.treasury.gov/resource-center/sanctions/Programs/Pages/Programs.aspx. Therefore residents of these countries / regions are not eligible to participate; and
You are not an employee of CHALEARN or any of the sponsoring or co-organizing entities; and
You are not involved in any part of the administration and execution of this contest; and
You are not an immediate family (parent, sibling, spouse, or child) or household member of an employee of CHALEARN or a person involved in any part of the administration and execution of this contest.
This contest is void within the geographic area identified above and wherever else prohibited by law.
If you choose to submit an entry, but are not qualified to enter the contest, this entry is voluntary, and any entry you submit is governed by the remainder of these contest rules; CHALEARN reserves the right to evaluate it for scientific purposes. If you are not qualified to submit a contest entry and still choose to submit one, under no circumstances will such entries qualify for sponsored prizes.
To be eligible for judging, an entry must meet the following content/technical requirements:
Entry contents: The participants are required to submit prediction results and code. To be eligible for prizes, the top ranking participants are required to publicly release their code under a license of their choice, taken among popular OSI-approved licenses (http://opensource.org/licenses) and make their code accessible on-line for a period of not less than three years following the end of the challenge (only required for top three ranked participants of the competition). To be part of the final ranking the participants will be asked to fill out a survey (fact sheet) briefly describing their method. The top ranking participants and the rest of participants are also invited (not mandatory) to submit a maximum 8-page paper for the proceedings of the associated ECCV 2018 ChaLearn Workshop under evaluation (to be held in October 2018). To be eligible for prizes, top ranked participants score must improve the baseline performance provided by the challenge organizers.
Pre-requisite: There is no pre-requisite to participate, including no requirement to have participated in previous challenges.
Use of data provided: All data provided by CHALEARN are freely available to the participants from the website of the challenge under license terms provided with the data. The data are available only for open research and educational purposes, within the scope of the challenge. ChaLearn and the organizers make no warranties regarding the database, including but not limited to warranties of non-infringement or fitness for a particular purpose. The copyright of the videos remains in property of their respective owners. By downloading and making use of the data, you accept full responsibility for using the data. You shall defend and indemnify ChaLearn and the organizers, including their employees, Trustees, officers and agents, against any and all claims arising from your use of the data. You agree not to redistribute the data without this notice.
Submission: The entries of the participants will be submitted on-line via the Codalab web platform. During the development period (quantitative competition), the participants will receive immediate feedback on validation data released for practice purpose. For the final quantitative evaluation, the results will be computed automatically on test data submissions. The performances on test data will not be released until the challenge is over
Original work, permissions: In addition, by submitting your entries into this contest you confirm that, to the best of your knowledge:
Your entry is your own original work, and exception being those participants of the coopetition using code shared by other participants; and
Your entry only includes material that you own, or that you have permission from the copyright / trademark owner to use.
Potential use of entry
Other than what is set forth below, we are not claiming any ownership rights to your entry. However, by submitting your entry, you:
Are granting us an irrevocable, worldwide right and license, in exchange for your opportunity to participate in the contest and potential prize awards, for the duration of the protection of the copyrights to:
Use, review, assess, test and otherwise analyze results submitted or produced by your code and other material submitted by you in connection with this contest and any future research or contests sponsored by; and
Feature your entry and all its content in connection with the promotion of this contest in all media (now known or later developed);
Agree to sign any necessary documentation that may be required for us and our designees to make use of the rights you granted above;
Understand that we cannot control the incoming information you will disclose to our representatives or our co-sponsor’s representatives in the course of entering, or what our representatives will remember about your entry. You also understand that we will not restrict work assignments of representatives or our co-sponsor’s representatives who have had access to your entry. By entering this contest, you agree that use of information in our representatives’ or our co-sponsor’s representatives unaided memories in the development or deployment of our products or services does not create liability for us under this agreement or copyright or trade secret law;
Understand that you will not receive any compensation or credit for use of your entry, other than what is described in these official rules.
If you do not want to grant us these rights to your entry, please do not enter this contest.
Submission of entries
Follow the instructions on the Codalab website to submit entries.
The participants will be registered as mutually exclusive teams. Each team may submit only one single final entry. We are not responsible for entries that we do not receive for any reason, or for entries that we receive but are not functioning properly.
The participants must follow the instructions. We will automatically disqualify incomplete or invalid entries.
Judging the entries
The board of CHALEARN will select a panel of judges to judge the entries; all judges will be forbidden to enter the contest and will be experts in causality, statistics, machine learning, computer vision, or a related field, or experts in challenge organization. A list of the judges will be made available upon request. The judges will review all eligible entries received and select three winners for each of the thre tracks. Winners will be determined based upon the prediction score on test data. The judges will verify that the winners complied with the rules, including that they documented their method by filling out a fact sheet.
The decisions of these judges are final and binding. The distribution of prizes according to the decisions made by the judges will be made within three (3) months after completion of the last round of the contest. If we do not receive a sufficient number of entries meeting the entry requirements, we may, at our discretion based on the above criteria, not award any or all of the contest prizes below. In the event of a tie between any eligible entries, the tie will be broken by giving preference to the earliest submission, using the time stamp of the submission platform.
Prizes and Awards
ChaLearn, Google, University of Barcelona, Human Pose Recovery and Behavior Analysis Group are the financial sponsors of this contest. There may be economic incentive prizes and travel grants for the winners (based on availability) to boost contest participation; these prizes will not require participants to enter into an IP agreement with any of the sponsors, to disclose algorithms, or to deliver source code to them.
Incentive Prizes for each track
Award certificates and travel awards (based on availability) will be attributed to the top 3 ranked participants of each track. In addition top ranked participants will be invited to submit a paper to the associated ECCV 2018 Workshop (pending acceptance) and a paper to a special issue in a top ranked journal, TBA.
(*) The amount of travel awards will be based on need and availability. The travel award may be used for one of the workshops organized in conjunction with the challenge. The award money will be granted in reimbursement of expenses including airfare, ground transportation, hotel, or workshop registration. Reimbursement is conditioned on (i) attending the workshop, (ii) making an oral presentation of the methods used in the challenge, and (iii) presenting original receipts and boarding passes.
3. Travel awards: Other travel awards may be distributed to deserving participants based upon need and availability.
4. If for any reason the advertised prize is unavailable, unless to do so would be prohibited by law, we reserve the right to substitute a prize(s) of equal or greater value, as permitted. We will only award one prize per team. If you are selected as a potential winner of this contest:
If your prize is not in cash, you may not exchange your prize for cash; you may not exchange any prize for other merchandise or services.
You may not designate someone else as the winner. If you are unable or unwilling to accept your prize, we will award it to an alternate potential winner.
If you accept a prize, you will be solely responsible for all applicable taxes related to accepting the prize.
If you are a minor in your place of residence, we may award the prize to your parent/legal guardian on your behalf and your parent/legal guardian will be designated as the winner.
9. Other Sponsored Events
To stimulate participation, the organizers are making available several channels of scientific paper publication. Publishing papers is optional and will not be a condition to entering the challenge or winning prizes.
The results of the challenge will be presented in the competition program of WCCI 2018, also, an overview paper will be published in the associated ECCV 2018 ChaLearn Workshop (pending acceptance). A selection of the best workshop papers may be invited to submit extended versions of their papers for a special issue in a top tier journal.
The organizers may also sponsor other events to stimulate participation.
If there is any change to data, schedule, instructions of participation, or these rules, the registered participants will be notified at the email they provided with the registration.
If you are a potential winner, we will notify you by sending a message to the e-mail address listed on your final entry within seven days following the determination of winners. If the notification that we send is returned as undeliverable, or you are otherwise unreachable for any reason, we may award the prize to an alternate winner, unless forbidden by applicable law.
Winners who have entered the contest as a team will be responsible to share any prize among their members. The prize will be delivered to the registered team leader. If this person becomes unavailable for any reason, the prize will be delivered to be the authorized account holder of the e-mail address used to make the winning entry.
If you are a potential winner, we may require you to sign a declaration of eligibility, use, indemnity and liability/publicity release and applicable tax forms. If you are a potential winner and are a minor in your place of residence, and we require that your parent or legal guardian will be designated as the winner, and we may require that they sign a declaration of eligibility, use, indemnity and liability/publicity release on your behalf. If you, (or your parent/legal guardian if applicable), do not sign and return these required forms within the time period listed on the winner notification message, we may disqualify you (or the designated parent/legal guardian) and select an alternate selected winner.
We will post changes in the rules or changes in the data as well as the names of confirmed winners (after contest decisions are made by the judges) online on http://gesture.chalearn.org/ and http://chalearnlap.cvc.uab.es/. This list will remain posted for one year or will be made available upon request by sending email to firstname.lastname@example.org.
Conditions. By entering this contest you agree:
To abide by these official rules;
To the extent allowable under applicable law, to release and hold harmless CHALEARN and sponsors, their respective parents, subsidiaries, affiliates, employees and agents from any and all liability or any injury, loss, damage, right, claim or action of any kind arising from or in connection with this contest or any prize won save for residents of the United Kingdom, Chile, Korea, Greece, Brazil, Turkey, Hong Kong, France and Germany with respect to claims resulting from death or personal injury arising from CHALEARN’s and University of Barcelona’s negligence, for residents of the United Kingdom with respect to claims resulting from the tort of deceit or any other liabilities that may not be excluded by law, and for residents of Australia in respect of any implied condition or warranty the exclusion of which from these official rules would contravene any statute or cause any part of these official rules to be void;
That CHALEARN’s decisions will be final and binding on all matters related to this contest; and
That by accepting a prize, CHALEARN and competition sponsors may use your team name, your name, and your place of residence online and in print, or in any other media, in connection with this contest, without payment or compensation to you. The declaration of eligibility, use, indemnity and liability/publicity release provided to the potential winner will make reference to obtaining his/her free consent to use his/her name and place of residence. In any case, the lack of such consent does not prevent the winner from receiving the prize.
This contest will be governed by the laws of the state of California, and you consent to the exclusive jurisdiction and venue of the courts of the state of California for any disputes arising out of this contest. For residents of Austria only: you may withdraw your submission from this contest within seven days of your entry. If you withdraw within seven days of entry, your submission will be returned to you, and we will not make any use of your submission in the future. However, you will not be eligible to win a prize. If you do not withdraw within seven days of entry, you will be bound by the provisions of these official rules. For residents of the United Kingdom only: the provisions of the contracts (rights of third parties) act 1999 will not apply to this agreement. For residents of New Zealand only: the provisions of the contracts (privity) act of 1982 will not apply to this agreement.For Quebec residents: any litigation respecting the conduct or organization of a publicity contest may be submitted to the Régie des Alcools, des Courses et des Jeux for ruling. Any litigation respecting the awarding of a prize may be submitted to the Régie only for the purpose of helping the parties reach a settlement. For residents of Israel only: this agreement does not entitle third parties to benefits under this agreement as defined in Chapter “D” of the Contracts Act (General Part) – 1973.
The data are available only for research and educational purposes, within the scope of the challenge. ChaLearn and the organizers make no warranties regarding the database, including but not limited to warranties of non-infringement or fitness for a particular purpose. The copyright of the videos remain the property of their respective owners. By downloading and making use of the data, you accept full responsibility for using the data. You shall defend and indemnify ChaLearn and the organizers, including their employees, Trustees, officers and agents, against any and all claims arising from your use of the data. You agree not to redistribute the data without this notice.
If an unforeseen or unexpected event (including, but not limited to: someone cheating; a virus, bug, or catastrophic event corrupting data or the submission platform; someone discovering a flaw in the data or modalities of the challenge) that cannot be reasonably anticipated or controlled, (also referred to as force majeure)affects the fairness and / or integrity of this contest, we reserve the right to cancel, change or suspend this contest. This right is reserved whether the event is due to human or technical error. If a solution cannot be found to restore the integrity of the contest, we reserve the right to select winners based on the criteria specified above from among all eligible entries received before we had to cancel, change or suspend the contest subject to obtaining the approval from the Régie des Alcools, des Courses et des Jeux with respect to the province of Quebec.
Computer “hacking” is unlawful. If you attempt to compromise the integrity or the legitimate operation of this contest by hacking or by cheating or committing fraud in any way, we may seek damages from you to the fullest extent permitted by law. Further, we may ban you from participating in any of our future contests, so please play fairly.
ChaLearn is the sponsor of this contest.
955 Creston Road,
Berkeley, CA 94708, USA
University of Barcelona, Human Pose Recovery and Behavior Analysis group, are the co-sponsors of this contest. Additional sponsors can be added during the competition period.
ALL INFORMATION, SOFTWARE, DOCUMENTATION, AND DATA ARE PROVIDED "AS-IS". THE ORGANIZERS DISCLAIM ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL CHALEARN AND/OR OTHER ORGANIZERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF SOFTWARE, DOCUMENTS, MATERIALS, PUBLICATIONS, OR INFORMATION MADE AVAILABLE FOR THE CHALLENGE.
Start: March 1, 2018, midnight
Description: You can submit your results of validation set for track 2. Please use high speed connections to submit results. Please try to avoid submissions bigger than 400MB. Each evaluation takes around 20-25 minutes.
Start: June 4, 2018, midnight
Description: You can submit your results of test set for track 2. Please use high speed connections to submit results. Please try to avoid submissions bigger than 400MB. Each evaluation takes around 20-25 minutes.
June 7, 2018, midnight
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