Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: ConnNet: A Long-Range Relation-Aware Pixel-Connectivity Network for
  Salient Segmentation   Salient segmentation aims to segment out attention-grabbing regions, a
critical yet challenging task and the foundation of many high-level computer
vision applications. It requires semantic-aware grouping of pixels into salient
regions and benefits from the utilization of global multi-scale contexts to
achieve good local reasoning. Previous works often address it as two-class
segmentation problems utilizing complicated multi-step procedures including
refinement networks and complex graphical models. We argue that semantic
salient segmentation can instead be effectively resolved by reformulating it as
a simple yet intuitive pixel-pair based connectivity prediction task. Following
the intuition that salient objects can be naturally grouped via semantic-aware
connectivity between neighboring pixels, we propose a pure Connectivity Net
(ConnNet). ConnNet predicts connectivity probabilities of each pixel with its
neighboring pixels by leveraging multi-level cascade contexts embedded in the
image and long-range pixel relations. We investigate our approach on two tasks,
namely salient object segmentation and salient instance-level segmentation, and
illustrate that consistent improvements can be obtained by modeling these tasks
as connectivity instead of binary segmentation tasks for a variety of network
architectures. We achieve state-of-the-art performance, outperforming or being
comparable to existing approaches while reducing inference time due to our less
complex approach.

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The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga