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Neural RGB(r)D Sensing: Depth and Uncertainty From a Video Camera

CVPR 2019 · 3D vision › Depth and stereo · approach: Dense depth prediction and completion

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
estimate depth probability volumes and integrate them over video frames with adaptive K-Net dampingNeural RGB→D Sensing · 7-Scenesσ<1.25: 60.05 -> 69.26Helped
estimate depth probability volumes and integrate them over video frames with adaptive K-Net dampingNeural RGB→D Sensing · KITTIrmse: 3.1375 -> 2.8294Helped
estimate depth probability volumes and integrate them over video frames with adaptive K-Net dampingNeural RGB→D Sensing · KITTIabs. rel: 0.0874 -> 0.0998Hurt
use the proposed video method rather than DORN in KITTI-to-virtual-KITTI transferNeural RGB→D Sensing · KITTI (train) → virtual KITTI (test)rmse: 9.618 -> 6.452Helped
use the proposed video method rather than DORN in KITTI-to-virtual-KITTI transferNeural RGB→D Sensing · KITTI (train) → virtual KITTI (test)abs. rel: 0.2256 -> 0.2537Hurt
use the proposed video method rather than DORN for indoor-to-KITTI transferNeural RGB→D Sensing · Indoor (train) → KITTI (test)σ<1.25: 25.44 -> 72.96Helped
replace DSO pose initialization on all frames with DSO initialization only in the first time window (ablation)Neural RGB→D Sensing · 7-Scenesσ<1.25: 60.63 -> 62.08Helped
use IMU relative rotations instead of DSO-initialized rotations for all frames (ablation)Neural RGB→D Sensing · 7-Scenesσ<1.25: 60.63 -> 69.26Helped
use ground-truth camera poses instead of IMU relative rotations (ablation)Neural RGB→D Sensing · 7-Scenesσ<1.25: 69.26 -> 70.54Helped
add image-warping difference as an auxiliary training loss (ablation)Neural RGB→D Sensing · depth predictiondepth qualityNo clear effect
add a temporal-consistency post-processing network to per-frame estimates (ablation)DORN, DeMoN, and MonoDepth comparisons · depth estimationperformanceNo clear effect
apply Bayesian filtering without damping rather than not integrating DPVs over time (ablation)Neural RGB→D Sensing · video depth estimationdepth noiseHelped

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