NIST 3D Imaging Technology Description
Active point triangulation, scanned geometry and error propagation
Verification date: 2026-10-24
View original public information →LSP187 · Deformation test of bridges, tunnels and buildings · Civil construction and road bridges and tunnels
Need to add new core
Convergence study of relative positions of multiple targets
Facing the tunnel model section, the three-dimensional positioning of the lattice is used as the observation route, and the two-dimensional changes of the target point are intended to be output. The page is for project evaluation and does not mean that the development has been completed or has been accepted on site.
Project Judgment Summary
Product/DeviceTunnel model section
Measure routePOSE·lattice three-dimensional positioning
Ability GradingNeed to add new core
Verification statusThe actual machine/product domain acceptance of this scenario has not been carried out
Scene nature:Similar potential application scenarios for laser spots. The potential application scenario has not yet been developed into a complete product system; the actual machine/product domain acceptance of this scenario has not been carried out. The actual product/product domain acceptance quantity in catalog statistics is 0.
Business tasks and intended output
- target audience
- Tunnel model section: lattice three-dimensional positioning
- pseudo output
- Two-dimensional change of target point
- Applicable conditions
- Complete three-dimensional convergence requires external parameters and spatial reconstruction
- priority
- Special development. The measurement/control core needs to be supplemented and verified according to the special project approval
Imaging input and algorithm routing
Imaging and device conditions
Numbered projection points or targets, multi-view/known target geometry, and camera calibration. Stable reference stations, ruler/reflector targets and environmental recording
POSE·lattice three-dimensional positioning
Numbered projection points or targets, multi-view/known target geometry and camera calibration
- A39Multi-view checkerboard camera calibration
- A40Image and point dedistortion
- A102Multi-laser spot connected domain candidate extraction
- A108One-to-one matching of multi-laser spot reference bits
- A111laser spot pixel to camera view angle conversion
Existing algorithmic evidence:A101–A112 only complete analytical synthesis spot and controlled geometry verification; see laser_spot_benchmark.json
Current capabilities and capabilities to be supplemented
Need to add new core
Need to add core computing
Light point extraction can only be used as an observation front-end, and core capabilities such as three-dimensional reconstruction, closed-loop control, wavefront or physical quantity inversion need to be developed and verified separately.
Gaps in this scenario:Three-dimensional correspondence, PnP/triangulation, SE(3) external parameters and hand-eye calibration need to be added; A42 is only two-dimensional. Complete three-dimensional convergence requires external parameters and spatial reconstruction. Observable components are measured first, and structural safety conclusions require professional assessment.
Route-level gaps:Three-dimensional correspondence, PnP/triangulation, SE(3) external parameters and hand-eye calibration need to be added; A42 is only two-dimensional
"New cores required" only describes the relative development volume and does not constitute a commitment to accuracy, tempo, stability or delivery time.
Verification methods and acceptance prerequisites
Test occlusion, symmetry and degraded poses against a 3D/robot or 6DOF reference platform. Independent comparison of total station, LVDT or known loading station
| Acceptance items | Evidence required for project confirmation | Current status |
|---|---|---|
| Inputs and samples | Real device original frames, normal/abnormal samples, exposure and light path conditions, sample grouping and set aside | Not provided, waiting for project input |
| Magnitude and Error | Independent reference value, calibration record, error statistical caliber and mutual confirmation threshold | Not verified |
| Exceptions and boundaries | Anticipated handling of missed detections, false detections, overexposure, occlusion, reflection, out-of-view and communication abnormalities | To be defined |
| System integration | Interface, time synchronization, deployment platform, tempo, log, version and continuous running record | Not integrated |
Evidence sources and citation boundaries
The source supports measurement principles or similar applications; the module combination, device and acceptance method in this scenario are engineering derivation, and product verification has not been completed.
NIST blue light triangulation study near flame
Displacement measurements and thermal gradient effects in specific fire tests, without extrapolation of values
Verification date: 2026-10-24
View original public information →Source usage scope:The public information is used to support the measurement principle or the existence of similar applications, and does not prove that this scenario has been developed, deployed or accepted by Jishi Technology.
Project consultation
xuzhiyang0928@gmail.com
Define the Development Scope with Samples and Device Requirements
Convergence study of relative positions of multiple targets
Please describe the task object, original picture or video, target indicators, device platform, interface and sample situation.
Phone: 13910119357xuzhiyang0928@gmail.com