Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accel: A Corrective Fusion Network for Efficient Semantic Segmentation
  on Video   We present Accel, a novel semantic video segmentation system that achieves
high accuracy at low inference cost by combining the predictions of two network
branches: (1) a reference branch that extracts high-detail features on a
reference keyframe, and warps these features forward using frame-to-frame
optical flow estimates, and (2) an update branch that computes features of
adjustable quality on the current frame, performing a temporal update at each
video frame. The modularity of the update branch, where feature subnetworks of
varying layer depth can be inserted (e.g. ResNet-18 to ResNet-101), enables
operation over a new, state-of-the-art accuracy-throughput trade-off spectrum.
Over this curve, Accel models achieve both higher accuracy and faster inference
times than the closest comparable single-frame segmentation networks. In
general, Accel significantly outperforms previous work on efficient semantic
video segmentation, correcting warping-related error that compounds on datasets
with complex dynamics. Accel is end-to-end trainable and highly modular: the
reference network, the optical flow network, and the update network can each be
selected independently, depending on application requirements, and then jointly
fine-tuned. The result is a robust, general system for fast, high-accuracy
semantic segmentation on video.

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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ph
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
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The categories of this paper are: math
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas