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SFSegNet: Parse Freehand Sketches Using Deep Fully Convolutional Networks (arxiv.org)
3 points by sel1 on Aug 19, 2019 | hide | past | pdf | discuss on HN

In plain words: A network labels every pixel of a freehand sketch as a specific object part, while a built-in step straightens shaky strokes and teaches it to ignore the background. Trained on 10,000 hand-labeled sketches, it segmented parts more accurately than other deep segmentation networks.

Abstract · SFSegNet: Parse Freehand Sketches using Deep Fully Convolutional Networks

Parsing sketches via semantic segmentation is attractive but challenging, because (i) free-hand drawings are abstract with large variances in depicting objects due to different drawing styles and skills; (ii) distorting lines drawn on the touchpad make sketches more difficult to be recognized; (iii) the high-performance image segmentation via deep learning technologies needs enormous annotated sketch datasets during the training stage. In this paper, we propose a Sketch-target deep FCN Segmentation Network(SFSegNet) for automatic free-hand sketch segmentation, labeling each sketch in a single object with multiple parts. SFSegNet has an end-to-end network process between the input sketches and the segmentation results, composed of 2 parts: (i) a modified deep Fully Convolutional Network(FCN) using a reweighting strategy to ignore background pixels and classify which part each pixel belongs to; (ii) affine transform encoders that attempt to canonicalize the shaking strokes. We train our network with the dataset that consists of 10,000 annotated sketches, to find an extensively applicable model to segment stokes semantically in one ground truth. Extensive experiments are carried out and segmentation results show that our method outperforms other state-of-the-art networks.

Junkun Jiang, Ruomei Wang, Shujin Lin, Fei Wang
arXiv:1908.05389 · cs.CV, cs.LG · submitted Aug 15, 2019
abstract · pdf · html · Accepted for the 2019 International Joint Conference on Neural Networks (IJCNN-19)

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