Psychophysical measurement of perceived motion flow of naturalistic scenes.

ABSTRACT: The neural and computational mechanisms underlying visual motion perception have been extensively investigated over several decades, but little attempt has been made to measure and analyze, how human observers perceive the map of motion vectors, or optical flow, in complex naturalistic scenes. Here, we developed a psychophysical method to assess human-perceived motion flows using local vector matching and a flash probe. The estimated perceived flow for naturalistic movies agreed with the physically correct flow (ground truth) at many points, but also showed consistent deviations from the ground truth (flow illusions) at other points. Comparisons with the predictions of various computational models, including cutting-edge computer vision algorithms and coordinate transformation models, indi

SUBMITTER: Yang YH 

PROVIDER: S-EPMC10679809 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature