TY - JOUR
T1 - Visualization by P-flow
T2 - gradient- And feature-based optical flow and vector fields extracted from image analysis
AU - Suzuki, Wataru
AU - Hiyama, Atsushi
AU - Ichinohe, Noritaka
AU - Yamashita, Wakayo
AU - Seno, Takeharu
AU - Takeichi, Hiroshige
N1 - Funding Information:
Japan Society for the Promotion of Science (JP18K12016, JP19H00630, JP18H01100).
Publisher Copyright:
© 2020 Optical Society of America
PY - 2020/12/1
Y1 - 2020/12/1
N2 - We proposed a method for extracting the optical flow suitable for visualization, pseudo-flow (P-flow), from a natural movie [Exp. Brain Res. 237, 3321 (2019)]. The P-flow algorithm comprises two stages: (1) extraction of a local motion vector field from two successive frames and (2) tracking of vectors between two successive frame pairs. In this study, we show that while P-flow takes a feature (vector) tracking approach, it is also classified as a gradient-based approach that satisfies the brightness constancy constraint. We also incorporate interpolation and a corner detector to address the shortcomings associated with the two approaches.
AB - We proposed a method for extracting the optical flow suitable for visualization, pseudo-flow (P-flow), from a natural movie [Exp. Brain Res. 237, 3321 (2019)]. The P-flow algorithm comprises two stages: (1) extraction of a local motion vector field from two successive frames and (2) tracking of vectors between two successive frame pairs. In this study, we show that while P-flow takes a feature (vector) tracking approach, it is also classified as a gradient-based approach that satisfies the brightness constancy constraint. We also incorporate interpolation and a corner detector to address the shortcomings associated with the two approaches.
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U2 - 10.1364/JOSAA.398677
DO - 10.1364/JOSAA.398677
M3 - Article
C2 - 33362139
AN - SCOPUS:85096913466
SN - 1084-7529
VL - 37
SP - 1958
EP - 1964
JO - Journal of the Optical Society of America A: Optics and Image Science, and Vision
JF - Journal of the Optical Society of America A: Optics and Image Science, and Vision
IS - 12
ER -