背景・目的

SUBARUではステレオカメラを使用した予防安全技術を開発しています。ステレオカメラでは左右2つのカメラの画像を使用することで、物体認識および物体に対する高精度な距離を測定することが可能となります。また、AIを組み合わせて物体の距離や速度を推定する技術も一般的となってきています。これまでのアイサイトのアルゴリズムは特定のハードウェアへの実装を前提として構成されています。しかし技術発展が著しい中、より将来を見据えた幅広い可能性の検討が必要であり、オープンイノベーションを活用したコンテストを実施することとします。

今回のコンペティションでは実際にアイサイトで得られた左右の画像と、そこから生成された視差画像のデータセットを公開します。リアルワールドの画像には、夜や雨など様々な視界の悪いシーンも含まれています。その画像データセットを用いて、実環境でリアルに使える物体の速度を検出するアルゴリズムの作成に挑戦していただきます。

タスク説明
動画像データなどを利用してフレーム単位で先行車の速度を推論するアルゴリズムを作成していただきます


データセット

動画像データアノテーション
ファイルフォーマットmp4, raw, pngjson
内容- 右カメラ動画像(10[fps])
- 左カメラ動画像(10[fps])
- 視差画像(rawデータと画像化したもの)
- 自車速度
- ハンドル角
- 先行車の矩形座標や速度と車間距離
- 等
サンプルサイズ(学習用) 739シーン (評価用) 241シーン
(学習用) 739シーン (評価用) 241シーン
備考各動画の総フレーム数は約100~約200評価用には先行車の速度と車間距離は含まないが,
最初のフレームにのみ先行車の矩形座標が与えられる.

※詳細は、配布データのreadme等をご参照ください。

評価方法

以下の手順に従って精度に対する評価値を算出します。

①各シーンに対する誤差を計算する


② 全てのシーンについて誤差の重み付き平均を計算する

"評価値計算時の重み付加"は学習用データのアノテーションで定義されています(評価用は非公開)。②で計算した結果errorが最終的な評価値となります。これは0~1の間の値をとり、小さいほど高精度となります。

※配布するデータのevaluation.zipの中身も確認してください。

最終順位の決定

1.コンペ最終日までの評価(暫定評価)は評価用データセットの一部で評価し、コンペ終了後の評価(最終評価)は評価用データセットの残りの部分で評価します。
 リーダーボードはコンテスト終了時に自動的に最終評価に切り替わり、それを元に最終順位を決定します。このため、開催中と終了後では順位が大きく変動する場合もあります。

2.スコアが同値の場合は、早い日時でご応募いただいた参加者を上位とします。

3.最終順位が上位の方を入賞候補者とし、事務局から連絡いたします。

4.入賞候補者には以下を提出していただきます。
 ・モデルのソースコード
 ・学習済モデル
 ・ソースコードの説明書(前処理部分、学習部分、推論部分が分かるように明記。提供データ以外のデータや、学習済モデルを利用した場合は、そのソース(データの所在、論文のリンク等)も明記)
 ・実行環境(OSのバージョン、使用ソフトウェア及び解析手法)
 ・データの解釈、工夫点、モデリングから得られる示唆等

5.再現性検証期間中、入賞候補者及び、その提出モデルが下記いずれかに該当する場合は入賞の資格を失います。
 ・事務局からの手続き上の連絡・要求に対して指定された期限内に対応しない
 ・参加条件やルールを満たしていない
 ・プログラムが動作しない
 ・学習済モデルから出力されるスコアと最終評価スコアが一致しない
 ・その他、事務局が不当と判断した場合

6.再現性を確認できた方から入賞者を選定します。

参加の前提
・コンペで設定された目的を理解の上、実用性を意識した仕組みの構築をお願いします。
 ここで実用性とは、全自動処理であること、高精度、高速、低計算量(省HWコスト)、データ量に対してスケーラブル、モデル解釈性が高いこと、などを意味します。
・チート行為やルールを無視した方法による参加は認められません。
・他者に対する誹謗中傷や公序良俗に反する行為を禁止します。
 事務局が悪質と判断したケースにおいては、入賞資格や会員資格の剥奪の可能性があることをを予めご了承のうえご参加ください。

システムの利用
・1人につき1アカウントのみ利用可能です。
・チームで参加する場合、チーム人数は最大で5人、2021/12/31まで作成可能です。(チーム作成方法はこちら

情報の取り扱い
コンペ開催期間中
・他の参加者と本コンペのアルゴリズムに関連するデータ・ソースコードを共有する行為は禁止とします。
・ただし、チームで参加している場合は、メンバー内でのデータ・ソースコードの共有は可能です。
コンペ終了後
・「情報公開ポリシー」ページを参照ください。

モデルの構築
・コンペで提供されたフォーマットによる新規データを入力した場合、自動で予測結果が出力されるモデルのみが評価対象となります。
・追加費用を伴わない(有償の外部API等を使用しない)環境下で提案した手法が再現でき、かつ継続使用が可能な実装をお願いします。
・推論時にCPUの使用メモリが32GB以下(GPUは10GB以下)かつ学習済みモデルの合計ファイルサイズが2GB以下で動くように実装してください。

ツールの利用
・ツールや学習済みモデルの利用は、商業利用が可能で、オープンかつ無料なもの(python, tensorflow 等)に限定します。

データの利用
・評価データをモデルの学習に用いることは禁止とします。
・自ら取得した外部データを学習や予測に用いることはオープンかつ無料で利用可能なものに限り可能です。
・学習データの修正は(再現可能な範囲で)可能です。修正を行う場合は、再現性を担保するため、ラベル変更箇所(対象データ、座標)と変更手順を、ソースコード以外の文書に明記して下さい(入賞時、ソースコードと合わせてご提出頂く必要がございます)。
・学習データや評価データに対して画像処理の手法によって自動的にデータを水増しすることは可能です。ただし、途中で人の手による操作が入るアルゴリズムは禁止です。
・あるシーンにおいてあるフレームに対して推論するときに未来のフレームの情報を用いることは禁止とします。
・あるシーンに対して推論するときに別のシーンの情報を用いることは禁止とします。


実装方法

・ソースコードは、以下のように、前処理、学習、予測、の3つに分け、それぞれを実行すれば処理が進むように実装して下さい。
①preprocess
 提供データを読み込み、データに前処理を施し、モデルに入力が可能な状態でファイル出力するモジュール。
 get_train_dataやget_test_dataのように、学習用と評価用を分けて前処理を行う関数を定義。
②train
 ①で作成したファイルを読み込み、モデルを学習するモジュール。
 学習済みモデルや特徴量、クロスバリデーションの評価結果を出力する関数等を定義。
③predict
 ①で作成したテストデータ及び②で作成したモデルを読み込み、予測結果をファイルとして出力するモジュール。

Disclosure policy

As a general rule, in accordance with Article 4, Paragraph 1 of the terms of participation, diclosing any contents such as insights and deliverables transmitted through the information or data provided by our company in relation to this competition is not permitted, however, only after the completion of this competition and for non-commercial purposes, it will be possible to disclose the contents within the score of the table below
Model *1
Private
Analysis results *2
Public
Public : Posting to social media sites, blogs and source repositories, and citing to papers
Restricted : Using in a limited range from research, education to seminars, where many unspecified people cannot access
*1 Execution unit source code and learned models
*2 The insights obtained using the information and data provided, or the solutions including scripts and processed data such as summary statistics

※Notes

上記「分析結果」に、当社から提供された生データは含まれません。生データについては、第4条4項の通り、本コンペティションの終了後速やかに削除してください。

【本コンペ特記事項】
本コンペティションは、依頼主である株式会社SUBARU(以下、「クライアント」といいます。)による人財発掘も目的としています。 そのため、本コンペティションの参加者には、会員登録時の入力情報に追加して、個人情報をご入力いただきます。 本コンペティションにおける参加者の情報は、株式会社SIGNATEからクライアントに対して提供されます。 これに伴い、当該クライアントから、参加者に対して、採用又は業務委託に関する情報提供又はオファーに関する連絡がなされる場合があります。


Terms of Participation in SIGNATE Competition

In order to participate in the Competition, you are required to agree to these Terms, in addition to the Terms of Use of SIGNATE.JP Site (hereinafter referred to as the “Terms of Use”). You should participate in the Competition after reading carefully and agreeing to these Terms. These Terms, the matters that are displayed as “additional matters” that you have agreed to when participating in a Competition, the Terms of Use and other terms and conditions that you have agreed to (hereinafter collectively referred to as “these Terms, etc.”) shall all be binding on the Participant.


Article 1 Definitions

1. For the purpose of these Terms, the following terms shall be defined as follows:

(1) “Site” means the website “SIGNATE (https://signate.jp)” on which the Competitions are posted.
(2) “Competition” means any competition on AI development or data analysis on the Site as held by the Host.
(3) “Host” is the host(s) of the Competition. The Host may be SIGNATE, Inc. (hereinafter referred to as the “Company”) or the Company’s client companies, affiliated companies, schools or organizations, etc. (hereinafter referred to as the “Client(s)”).
(4) “Participant(s)” means the member(s) (which mean “member(s)” defined in the Terms of Use, and the same shall apply hereinafter) who participate in a Competition.
(5) “Submissions” means, collectively, the analysis and prediction results, prediction models and reports, etc. as submitted in the Competition.
(6) “Final Submissions” means the Submissions submitted by a Participant that the Participant has specified as a final submission on the prescribed page in the Site by the time of completion of a Competition.
(7) “Winner Candidate” means the Participant who has received a notice from the Company that he/she is nominated as a winner candidate.
(8) “Submissions for Final Judgment” means the Submissions and other items designated by the Company as submitted by a Winner Candidate pursuant to the instructions of the Company.
(9) “Final Judgment” means the acceptance inspection and judgment, including reproducibility verification, by the Company for the Final Submissions and Submissions for Final Judgment of a Winner Candidate.
(10) “Winner” means the Winner Candidate who is informed by the Company that he/she has won a prize.
(11) “OSS” means software licensed based on OSS License Terms.
(12) “OSS License Terms” means any of the following license terms
(1) Either the GNU General Public License or the GNU Lesser General Public License published by the Free Software Foundation, Inc.;
(2) License terms listed at www.opensource.org/licenses/ or derivatives thereof;
(3) License terms that regard the software as “free software” or “open source software”; and
(4) License terms or agreements similar to the license terms listed in each of the three preceding items which request the user to disclose, distribute or license to a third party, or not to exercise, etc., the licensed software, its derivatives and the intellectual property rights associated therewith in whole or in part.

Article 2 Competition

1. A member who desires to participate in a Competition shall be required to agree to these Terms, etc. and to satisfy the conditions for participation as specified in each such Competition. Any person who is not a member shall not participate in any Competition.
2. Participants shall participate in each Competition in the manner as advised by the Company and shall be obligated to comply with the rules as prescribed in each Competition.
3. Participants may submit the Submissions for the assignment of a Competition during the period of such Competition and submit as many proposals on the method of solving the problem as specified by the Company to the Host by the end of the period of the said Competition.
4. Participants may submit Submissions in the form specified in the Competition and specify those Submissions as a Final Submission on the prescribed page in the Site by the end time specified by the said Competition.
5. Participants’ Final Submissions shall be evaluated in accordance with the evaluation method specified in the Competition and the final ranking shall be determined based on such evaluation.
6. Participants may, as a general rule, check their own evaluation results and the evaluation results of each of the other Participants for Submissions that may be evaluated quantitatively on the Site.
7. Participants shall be solely liable for their own Submissions, including the legality and non-infringement of the Submission.
8. Participants shall not submit any Submissions that have no direct relationship to each Competition.
9. Unless otherwise provided for, Participants may not directly communicate to, consult with, make a request to, solicit or take any other actions with the Host in respect of the matters related to a Competition during the period of the said Competition.
10. Participants shall direct any questions or concerns regarding any Competition to the Company or the third party designated by the Company in accordance with the procedures prescribed by the Company as posted on the Site.
11. Participants shall produce Submissions in compliance with the OSS License Terms related to the OSS when using or incorporating OSS in a Submission. However, Participants shall not use or incorporate OSS for which commercial use is prohibited in a Submission.
12. The Host shall not be obligated to pay any remuneration or other consideration for any act of the Participants in a Competition under any pretext. And the Company shall not be obligated to pay any remuneration or other consideration other than those prescribed in the following Article for any act of the Participants in a Competition.

Article 3 Reward and Vesting of Rights

1. Unless otherwise provided for, any Participant shall satisfy the requirements set forth in the following items in order to be entitled to receive a reward in any Competition that offers a reward:

(1) To be a winner;
(2) To agree to transfer to the Host and the relevant transferee of rights in such Competition all transferable rights, such as copyrights (including the rights as prescribed in Article 27 and Article 28 of the Copyright Act, and the same shall apply hereinafter), rights to obtain patents and know-how, etc. in and to all analysis and prediction results, prediction models, reports, etc., written explanations on algorithms, source code and reproduction method, etc. (although not limited to these), and the Submissions contained in the Final Submissions and Submissions for Final Judgment (hereinafter referred to as the “Rights”) along with a guarantee that the Participant has the authority to transfer such Rights;
(3) To guarantee that any relevant transferee of rights may use the Rights contained in the Final Submissions and Submissions for Final Judgment for its own business and other purpose without any restriction and to agree to their exclusive use of such Rights;
(4) To agree not to exercise moral rights to the Rights against the relevant transferee of rights;
(5) To enter into an agreement for the transfer of the Rights with the relevant eligible transferee of rights, including the guarantee of and agreement to the matters in the preceding three (3) items and other reasonable provisions;
(6) To have the personal identity of such Participant verified by the Company; and
(7) Not to breach any provision of these Terms, etc.

2. Any Winner Candidate shall, after having received a notice from the Company that he/she is nominated as a winner candidate, submit the Submissions for Final Judgment on or before the designated date and communicate the matters requiring confirmation or response in relation to the Final Submissions and the Submissions for Final Judgment to the Company on or before the designated date, in accordance with the instructions of the Company. The Company shall carry out the final judgment based on such matters requiring confirmation or response. If the Company receives no confirmation or response satisfactory to the Company on or before the designated date, the Company may exclude such Winner Candidate from the subject of the final judgment and the Winner Candidate shall not raise any objection thereto.
3. If the Company considers that the Final Submissions or Submissions for Final Judgment need to be amended or modified, or there occur any additional matters requiring confirmation, in the course of the final judgment, any Winner Candidate shall take action or make response in relation to the matters that require amendment or modification, or the matters requiring confirmation, on or before the designated date in accordance with the instructions of the Company. If the Company receives no action or response satisfactory to the Company on or before the designated date, the Company may exclude such Winner Candidate from the final judgment and the Winner Candidate shall not raise any objection thereto.
4. The Company shall determine the Winner through the final judgment and inform the Winner to that effect.

Article 4 Confidentiality

1. Any Participant shall treat any information and data that they receive from the Company in relation to Competitions as well as knowledge and products, etc. obtained using such information and data (including Participant Submissions; hereinafter referred to as the “Company-Provided Information”) as confidential information and shall not disclose the same to any third party and use the same for any purpose other than for such Competition and purpose specified by the Company separately; provided, however, that the confidential information shall not include any information that falls under any of the following items:

(1) Information that is known to the public at the time it was received;
(2) Information that is already possessed by the Participant at the time it was received (only in the case where such Participant may demonstrate such fact by reasonable means);
(3) Information that becomes known to the public without the fault of the Participant after it was received;
(4) Information that is independently developed by the Participant without reference to any information received; or
(5) Information that is rightfully received from any third party having a right to disclose such information without the obligations of confidentiality (only in the case where such Participant may demonstrate such fact by reasonable means).

2. Any Winner shall handle his/her Final Submissions and Submissions for Final Judgment in the same manner as Company-Provided Information after receiving notification that they are a winner. And Participant Submissions other than the Winner’s Final Submissions and Submissions for Final Judgment shall not be included as Company-Provided Information after the Company has determined the Winner notwithstanding the provisions of the preceding paragraph.
3. Any Participant may publish any algorithms that they have developed as well as any other materials they have created in connection with their participation in a Competition (including Final Submissions and Submissions for Final Judgment) after that Competition in accordance with the Competition Information Disclosure Policy (hereinafter, "Information Disclosure Policy") posted on the Site. However, Participants shall observe the following matters when publishing information and may not publish any materials prohibited by the Information Disclosure Policy:

(1) Clarify that the materials were created in connection with participation in the Competition;
(2) Give credit in accordance with the notation method prescribed in the Information Disclosure Policy when the materials to be published contain part of a dataset; and
(3) Clarify the location accessible to all Participants (including but not limited to the Competition forum and other locations designated by the Company) where the materials are published (including links, etc.) if publishing materials outside the Competition forum.

4. Any Participant shall delete or return to the Company the Company-Provided Information (excluding the information prescribed in paragraph 3) immediately after the completion of a Competition.
5. If there is any separate arrangement in relation to the confidential information in a Competition, the provisions of such arrangement shall prevail over the provisions of these Terms.
6. If any dispute occurs between a third party and the Host or the Company due to the breach by any Participant of the provisions of this Article and such other party makes any claim against the Company or the Host, such Participant shall compensate for any damage, loss, expenses (including, but not limited to, attorneys’ fees), lost profits and lost revenues, etc. incurred by the Company and the Host.
7. The provisions of this Article shall survive the termination of the relevant Competition or the Participant’s completion of the procedures for withdrawal from all services provided by the Company, with respect to the Company-Provided Information and the Winner’s Final Submissions and Submissions for Final Judgment for a period of five (5) years thereafter.

Article 5 Prohibited Acts of Participants

1. The Company shall prohibit Participants from engaging in any of the following acts in any Competition:

(1) An act of cracking, cheating, spoofing and other misconduct;
(2) An act of redistributing data files included in the dataset;
(3) An act of directly communicating to, consulting with, making a request to, soliciting or responding to solicitation or other activities to other Participants or the Host (other than the Company) without the involvement of the Company for the purpose of furthering the Participant’s own interests;
(4) Any profitmaking activities using the Competition (including but not limited to solicitation or scouting activities, and use for a third party in educational business, etc.) without the prior approval of the Company in writing or any other manner specified by the Company;
(5) An Act of transferring, offering as collateral or otherwise disposing of the Participants’ standing, or the rights or obligations, as a Participant in any Competition (except with the prior written consent of the Company);
(6) Acts that infringe upon the intellectual property rights, trade secrets or any other rights of third parties; and
(7) Any other act in breach of these Terms, etc.

2. If the Company deems that a Participant has engaged in, or may engage in, any of the prohibited acts as prescribed in the preceding paragraph, the Company may, without prior notice to the Participant, disqualify the Participant from the Competition in which the Participant participates, temporarily suspend the Participant from using some or all of the services provided by the Company, withdraw the Participant’s membership, claim damages from the Participant or take any other measures deemed necessary by the Company.

Article 6 Modification of Terms

1. The Company may modify, add or delete any provisions of these Terms from time to time without the approval of Participants.

November 19, 2021