Slide 6
Slide 6 text
ͲΜͳͷʁ
ઌߦݚڀͱൺͯԿ͕͍͢͝ʁ
ٕज़ͷख๏؊ʁ
ٞ͋Δʁ
Ͳ͏ͬͯ༗ޮͩͱݕূͨ͠ʁ
࣍ʹಡΉ͖จʁ
S. Bell, C. L. Zitnick, K. Bala, and R. Girshick.
“Inside-outside net: Detecting objects in context with skip pooling and recurrent
neural networks”
L.-C. Chen, G. Papandreou, I. Kokkinos, K. Murphy, and A. L. Yuille. “Semantic image
segmentation with deep convolutional nets and fully connected crfs.”
R. Girshick.
“Fast R-CNN”
R. Girshick, J. Donahue, T. Darrell, and J. Malik.
“Rich feature hierarchies for accurate object detection and semantic segmentation. “
هࡌͳ͠
PASCAL VOCσʔληοτͰ࣮ݧɻը૾͋ͨΓ170msͷςετ࣌ؒͰୡ͞Εɺ
FasterR-CNNͷରԠΑΓ2.5ʙ20ഒߴɻ
R-CNN ʹଓ͍ͯɺʢiʣྖҬఏҊɺ͓ΑͼʢiiʣྖҬྨͰߏ͞ΕΔҰൠతͳ2ஈ֊ͷΦ
ϒδΣΫτݕग़ઓུΛ࠾༻ɻީิྖҬɺͦΕࣗମ͕શΈࠐΈΞʔΩςΫνϟͰ͋
ΔRegion Proposal NetworkʢRPNʣʹΑͬͯநग़ɻఏҊྖҬʢRoIʣΛલఏͱͯ͠ɺR-FCN
ΞʔΩςΫνϟɺRoIΛΦϒδΣΫτΧςΰϦͱഎܠʹྨ͢ΔΑ͏ʹઃܭɻ R-FCNͰ
ɺֶशՄೳͳͯ͢ͷॏΈΈࠐΈͰ͋Γɺը૾શମͰܭࢉ͞ΕΔɻ
ҎલͷྖҬϕʔεͷݕग़ثͱରরతʹɺྖҬϕʔεͷݕग़ثશʹΈࠐ
ΈͰ͋Γɺ΄ͱΜͲͯ͢ͷܭࢉ͕ը૾શମͰڞ༗͞ΕΔɻ
ਖ਼֬ͰޮతͳΦϒδΣΫτݕग़ͷͨΊͷྖҬϕʔεͷશΈࠐΈωοτ
ϫʔΫ
“R-FCN: object detection via region-based fully convolutional networks.”
R-FCNɿྖҬϕʔεͷશΈࠐΈωοτϫʔΫΛհͨ͠ΦϒδΣΫτݕग़
ʢMay 2016ʣ
Jifeng Dai, Yi Li, Kaiming He, Jian Sun