AWhat changed
A brightness-change constraint combined with spatial smoothness yields a global variational optical-flow model and an iterative neighbor-coupled velocity estimate.
Scientific scope
A brightness-change constraint combined with spatial smoothness yields a global variational optical-flow model and an iterative neighbor-coupled velocity estimate. The variational model assumes brightness constancy and global flow smoothness with a chosen regularization strength. Aperture ambiguity, illumination change, discontinuities and non-small motion limit the inference. It is not guaranteed recovery of true physical motion in arbitrary video. Iteration/stopping and later robust flow models remain separate.
Evidence
Source-linked, scoped account of the original work. The published scope states the scientific assumptions and remaining verification limits. WRS has not independently certified the full proof, experimental result or system benchmark.
Contributors
- Berthold K.P. Horn; Brian G. Schunck · SCIENCE: Completeoriginal scientificbyline;noeffortsplit inferred.
- Cited motion and numerical predecessors · SCIENCE: Antecedentbrightness/motion/variational/iteration methods;notbyline authors.
- H.-H.Nagel; W.E.L.Grimson; E.Hildreth; KatsushiIkeuchi · SCIENCE: Acknowledged stimulation, criticism and conceptual-error feedback; coauthorship or ownership fractions are not inferred.
- J.Jones; ARPA/ONR · INFRASTRUCTURE: Drawings andlaboratoryresearch support;notbyline scientists.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
Full scientific record · Browse contribution grades · Request a correction