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Development History

Visual Verifier evolved from a sequence of image and video verification prototypes preserved under archive/legacy_cells/.

Historical progression

  • Image-level difference and blur analysis
  • Video-level frame comparison
  • Region reports, severity, and JSON summaries
  • IoU-based temporal tracking
  • False-positive filtering
  • Target-aware validation and manual review
  • Batch execution and standalone CLI experiments

V5.1b foundation

The first validated package milestone extracted:

  • Typed domain models and structured exceptions
  • Media readers and normalization
  • Geometry, pixel, and sharpness metrics
  • Region extraction and filtering
  • Image and video pipelines
  • Evidence writers
  • Public Python and CLI interfaces
  • Regression tests and release scripts

V5.2 temporal extraction

V5.2 reintroduced historical temporal tracking as a tested package subsystem:

  • Deterministic one-to-one association
  • Explicit lifecycle and short-gap recovery
  • Immutable tracking evidence
  • Split and merge lineage signals
  • Continuity, fragmentation, jitter, and stability analysis
  • Track, observation, and event reports
  • Track-aware annotated video

Target-aware verification, selectable policies, and batch execution still require clean extraction and independent regression parity before becoming active public capabilities.