Geometry-Based Next Frame Prediction from Monocular Video

Intelligent Vehicles Symposium (2017)

Abstract

We consider the problem of next frame prediction
from video input. A recurrent convolutional neural network is
trained to predict depth from monocular video input, which,
along with the current video image and the camera trajectory,
can then be used to compute the next frame. Unlike prior next-
frame prediction approaches, we take advantage of the scene
geometry and use the predicted depth for generating the next
frame prediction. Our approach can produce rich next frame
predictions which include depth information attached to each
pixel. Another novel aspect of our approach is that it predicts
depth from a sequence of images (e.g. in a video), rather than
from a single still image.

We evaluate the proposed approach on the KITTI dataset,
a standard dataset for benchmarking tasks relevant to au-
tonomous driving. The proposed method produces results which
are visually and numerically superior to existing methods that
directly predict the next frame. We show that the accuracy of
depth prediction improves as more prior frames are considered.