arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1812.05850cs.CV
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语义分割的多假设上下文建模

Multi-hypothesis contextual modeling for semantic segmentation

Istanbul Medipol University(伊斯坦布尔梅迪波尔大学);Isik University(伊希克大学)

Hasan F. Ates, Sercan Sunetci

摘要:

语义分割(即图像解析)旨在用其对应的语义类标签注释每个图像像素。图像的空间一致性标记需要对局部上下文信息进行准确的描述和建模。分割结果通常通过对初始标签进行马尔可夫随机场(MRF)优化来改善。然而,这种改进受到初始结果的准确性和如何定义上下文邻域的限制。在本文中,我们开发了通用的和灵活的上下文模型的分割邻域,以提高解析精度。而不是使用一个固定的分割和邻域定义,我们探索各种上下文模型的互补信息的融合,在替代分割相同的图像。换句话说,我们提出了一个新的MRF框架,描述和优化多个分割之间的上下文依赖关系。在两个常见数据集上的仿真结果表明,与基线方法相比,解析准确率有了显着提高。

英文摘要:

Semantic segmentation (i.e. image parsing) aims to annotate each image pixel with its corresponding semantic class label. Spatially consistent labeling of the image requires an accurate description and modeling of the local contextual information. Segmentation result is typically improved by Markov Random Field (MRF) optimization on the initial labels. However this improvement is limited by the accuracy of initial result and how the contextual neighborhood is defined. In this paper, we develop generalized and flexible contextual models for segmentation neighborhoods in order to improve parsing accuracy. Instead of using a fixed segmentation and neighborhood definition, we explore various contextual models for fusion of complementary information available in alternative segmentations of the same image. In other words, we propose a novel MRF framework that describes and optimizes the contextual dependencies between multiple segmentations. Simulation results on two common datasets demonstrate significant improvement in parsing accuracy over the baseline approaches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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