Papers › Towards Grand Unification of Object Tracking

Towards Grand Unification of Object Tracking

14 Jul 2022arXiv:2207.07078archive 2025-07-28

Bin Yan, Yi Jiang, Peize Sun, Dong Wang, Zehuan Yuan, Ping Luo, Huchuan Lu

We present a unified method, termed Unicorn, that can simultaneously solve four tracking problems (SOT, MOT, VOS, MOTS) with a single network using the same model parameters. Due to the fragmented definitions of the object tracking problem itself, most existing trackers are developed to address a single or part of tasks and overspecialize on the characteristics of specific tasks. By contrast, Unicorn provides a unified solution, adopting the same input, backbone, embedding, and head across all tracking tasks. For the first time, we accomplish the great unification of the tracking network architecture and learning paradigm. Unicorn performs on-par or better than its task-specific counterparts in 8 tracking datasets, including LaSOT, TrackingNet, MOT17, BDD100K, DAVIS16-17, MOTS20, and BDD100K MOTS. We believe that Unicorn will serve as a solid step towards the general vision model. Code is available at https://github.com/MasterBin-IIAU/Unicorn.

PaperPDFCodeCode Syntology ran

In Syntology Open this paper in Syntology's Atlas, the map of the papers in Syntology's graph and their citations.

For agents, Syntology's MCP tool lists every function and class Syntology harvested from this paper and whether it ran (how to connect): get_harvested_code_for_paper(arxiv_id="2207.07078")

Code

Syntology Ran 6 of 6 code samples harvested from 1 repository linked to this paper; 0 have no recorded run. Of those that ran: 2 ran · honoured contract; 1 ran · violated contract; 2 ran · our draft was wrong; 1 ran with no contract checked.

By repository: official repository: 5 samples from 1 repository, 5 ran; 1 identical to code first harvested elsewhere. The run record, sample by sample. “Ran” means executed on a synthesized input, not that the code is correct or reproduces the paper.

masterbin-iiau/unicorn officialmentioned in papermentioned on GitHubpytorchMIT report

Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.

Code Syntology ran Syntology

6 samples harvested; 6 ran; 2 honoured the contract we drafted; 0 have no recorded run. Read from Syntology's graph 2026-09-24; that is when this build read the record, not when the samples ran.

2ran · honoured contract
1ran · violated contract
2ran · our draft was wrong
1ran

Licence: 1 of the 6 samples is pointer only, meaning Syntology does not serve that copy's text. This page shows no code text for any sample; each one links to its file in the repository.

Harvested from MasterBin-IIAU/Unicorn. Some samples are identical code Syntology first harvested from another repository; for those, this paper's copy is not located and its licence is not recorded. “Ran” means the sample executed on a synthesized input. It does not mean the output is correct, and nothing here reproduces the paper's results. “Honoured” and “violated” refer to a contract Syntology drafted from the code itself; “our draft was wrong” and “fixture could not drive it” are failures of Syntology's instrument, not of the code.

Each sample ends with its code_sha256, Syntology's identity for that exact code. An agent fetches the stored sample with Syntology's MCP tool get_code(code_sha256="…") (how to connect); click an identity to copy that call.

Repository labels, per sample. official repository: The archive marks this repository official for the paper. named in the paper: The archive records that the paper mentions this repository; it is not marked official. community (archive-listed): In the archive's code links for this paper, not marked official and not recorded as mentioned in the paper. found in paper text by Syntology: Syntology found this repository in the paper's own text; whether it is the authors' implementation is not asserted. community: Not in the archive's code links for this paper; a community repository Syntology harvested. Samples from a repository marked official are listed first. Licence labels name the repository's licence as recorded at harvest. “Pointer only” means Syntology does not serve that copy's text, for one of four reasons: no licence file was found; the licence was not identified; the licence is recorded as permissive but that copy's record is not marked cleared; or the licence is outside the permissive list Syntology serves text under (MIT, Apache-2.0, BSD and similar). Some licences outside that list permit redistribution, such as WTFPL, and GPL-3.0 under its conditions; they are simply not on the list. Hover a licence label for the reason. File links open the file on GitHub at the default branch, which may have changed since the harvest.

Unicorn MasterBin-IIAU/Unicorn/unicorn/models/unicorn.py official repository ran · metamorphic tier: deterministic MIT (permissive) · 656fcd317891ebbb · report
average_dict MasterBin-IIAU/Unicorn/unicorn/models/unicorn.py official repository ran · our draft was wrong MIT (permissive) · 69773d3745bb24e2 · report
compute_corr_losses MasterBin-IIAU/Unicorn/unicorn/models/unicorn.py official repository ran · honoured contract fingerprinted MIT (permissive) · a93d04d5a5f05f9d · report
dice_coefficient MasterBin-IIAU/Unicorn/unicorn/models/unicorn.py official repository ran · violated contract fingerprinted MIT (permissive) · ac6d50c75c2fe223 · report
get_label_map MasterBin-IIAU/Unicorn/unicorn/models/unicorn.py official repository ran · our draft was wrong MIT (permissive) · 65c1d3839e2d728a · report
box_cxcywh_to_xyxy identical code first harvested elsewhere ran · honoured contract fingerprinted licence of this copy not recorded · e0a06ded5d4f6c3c · report

Tasks

Multi-Object TrackingMulti-Object Tracking and SegmentationMultiple Object TrackingObjectObject TrackingVideo Object TrackingVisual Object Tracking

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Multi-Object Tracking MOT17 Unicorn HOTA 61.7 #21 of 48 Archive leaderboard report
Multi-Object Tracking MOT17 Unicorn IDF1 75.5 #21 of 48 Archive leaderboard report
Multi-Object Tracking MOT17 Unicorn MOTA 77.2 #21 of 48 Archive leaderboard report
Multi-Object Tracking MOTS20 Unicorn IDF1 65.9 #3 of 6 Archive leaderboard report
Multi-Object Tracking MOTS20 Unicorn sMOTSA 65.3 #3 of 6 Archive leaderboard report
Multi-Object Tracking and Segmentation BDD100K val Unicorn mMOTSA 29.6 #2 of 8 Archive leaderboard report
Multiple Object Tracking BDD100K val Unicorn TETA - #6 of 9 Archive leaderboard report
Multiple Object Tracking BDD100K val Unicorn mIDF1 54.0 #6 of 9 Archive leaderboard report
Multiple Object Tracking BDD100K val Unicorn mMOTA 41.2 #6 of 9 Archive leaderboard report
Video Object Tracking NT-VOT211 Unicorn AUC 34.52 #23 of 43 Archive leaderboard report
Video Object Tracking NT-VOT211 Unicorn Precision 47.77 #23 of 43 Archive leaderboard report
Visual Object Tracking LaSOT Unicorn AUC 68.5 #33 of 46 Archive leaderboard report
Visual Object Tracking LaSOT Unicorn Normalized Precision 76.6 #33 of 46 Archive leaderboard report
Visual Object Tracking LaSOT Unicorn Precision 74.1 #33 of 46 Archive leaderboard report
Visual Object Tracking TrackingNet Unicorn Accuracy 83 #24 of 40 Archive leaderboard report
Visual Object Tracking TrackingNet Unicorn Normalized Precision 86.4 #24 of 40 Archive leaderboard report
Visual Object Tracking TrackingNet Unicorn Precision 82.2 #24 of 40 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

VOS

Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections