Localization and navigation of a holonomic indoor airship using on-board sensors
Why this work is in the frame
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Bibliographic record
Abstract
Two approaches to navigation and localization of a holonomic, unmanned, indoor airship capable of 6-degree-of-freedom (DOF) motion using on-board sensors are presented. First, obstacle avoidance and primitive navigation were attempted using a light-weight video camera. Two optical flow algorithms were investigated. Optical flow estimates the motion of the environment relative to the camera by computing temporal and spatial fluctuations of image brightness. Inferences on the nature of the visible environment, such as obstacles, would then be made based on the optical flow field. Results showed that neither algorithm would be adequate for navigation of the airship.Localization of the airship in a restricted state space â three translational DOF and yaw rotation â and a known environment was achieved using an advanced Monte Carlo Localization (MCL) algorithm and a laser range scanner. MCL is a probabilistic algorithm that generates many random estimates, called particles, of potential airship states. During each operational time step each particle's location is adjusted based on airship motion estimates and particles are assigned weights by evaluating simulated sensor measurements for the particles' poses against the actual measurements. A new set of particles is drawn from the previous set with probability proportional to the weights. After several time steps the set converges to the true position of the airship. The MCL algorithm achieves global localization, position tracking, and recovery from the "kidnapped robot" problem. Results from off-line processing of airship flight data, using MCL, are presented and the possibilities for on-line implementation are discussed.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it