Augmented Visual Localization Using a Monocular Camera for Autonomous Mobile Robots
Bibliographic record
Abstract
A visual localization method utilizing a fisheye monocular camera is proposed to enhance navigation accuracy of autonomous mobile robots in indoor environments for warehouse or service robotics applications. Existing visual infrastructure-aided localization algorithms take advantage of uniquely colored or lit robots that limit their application to ideal lighting conditions, occlusion-free scenarios or multi-modal fusion with stereo vision, LiDAR, and inertial sensors which inevitably increases their complexity. Using fisheye monocular vision imposes challenges such as depth estimation, frame warping, and low accuracy of the state estimation for far objects. The proposed augmented localization framework includes an uncertainty-aware state observer employing a motion model with a learning-based input estimator and point cloud clusters over a region of interest, to estimate the position of a robot while maintaining effective computational efficiency. Observability of the developed state estimator and asymptotic stability of the estimation error dynamics are also studied. Various tests including occlusion, low visibility for far objects, and noisy depth estimation (from the clustered region of interest), have been conducted in indoor settings to validate the method. The tests confirm robust performance of the augmented visual localization framework in presence of intermittent measurements due to environmental conditions or low reliability of vision-based depth estimation. Furthermore, a significant increase in accuracy and consistency of visual localization is shown without using additional stereo, inertial, or LiDAR measurements.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".