Existing surveillance cameras can enter a reuse assessment. Visible video alone does not establish an acceptable people-positioning system. Check person visibility, ground coverage, valid calibration, time sources and trajectory association. This article gives assessment conditions. It does not claim direct reuse of arbitrary models.
What information is needed before assessment?
Provide camera models, stream access methods, encoding settings, camera positions, a site map and representative video. Mark occlusion, overlapping areas and ground-level changes. Define anonymous trajectories or named identity, and whether historical search, area alerts and interfaces are included. Stream access needs appropriate permissions. A working login does not establish confirmation of other data uses.
Does clear video establish accurate positioning?
No. Visible images are an input condition. Ground mapping must match the actual installation and coordinate definitions, with independent check points. Assess model suitability for steps and multiple levels. See OpenCV planar mapping for mechanisms. Manufacturer feature names or displayed map points do not establish accepted position error.
Does a track identifier establish a person's identity?
No. Track identifiers associate observations; they do not directly establish a named identity. Captured face images do not establish completed registration, identity-database comparison or correct-association tests. For named-identity functions, separately confirm data sources, purposes, permissions and test scope. Do not describe unintegrated procedures as completed work.
How is the reusable scope established?
Begin with a representative area and verify agreed person counts, routes, lighting and workload. Record video access, ground-position error, trajectory continuity, association errors and response time separately. Accept historical search and alerts separately. With a preview alone, record that video access is visible and positioning and tracking remain unverified. Partial completion does not establish acceptance of the whole system.
Related services: Multi-camera synchronization, calibration and fusion, project consultation.