Adaptive Visual Scene Understanding: Incremental Scene Graph Generation

📄 arXiv: 2310.01636v4 📥 PDF

作者: Naitik Khandelwal, Xiao Liu, Mengmi Zhang

分类: cs.CV

发布日期: 2023-10-02 (更新: 2024-11-01)


💡 一句话要点

提出增量场景图生成方法以解决动态视觉理解问题

🎯 匹配领域: 支柱三:空间感知与语义 (Perception & Semantics)

关键词: 场景图生成 持续学习 动态视觉理解 合成分析 增量学习 对象关系 智能监控 机器人导航

📋 核心要点

  1. 现有的持续学习方法在场景图生成中面临复杂的对象交互和动态关系的挑战,导致难以有效扩展和修改场景图。
  2. 本文提出了一种新的方法,通过分析和合成场景图,重放合成场景以提升场景图生成的能力,适应已知和未知环境。
  3. 实验结果显示,所提方法在CSEGG效率上显著优于传统方法,同时有效控制了隐私和内存使用,展示了良好的实用性。

📝 摘要(中文)

场景图生成(SGG)分析图像以提取对象及其关系的有意义信息。在动态视觉世界中,AI系统需要持续检测新对象并建立与现有对象的关系。尽管已有研究集中于物体检测和图像识别的持续学习,但在SGG领域的相关研究仍然有限。本文提出了一种全面的基准,涵盖关系增量、场景增量和关系泛化三种学习模式,并引入了一种名为RAS的“通过合成分析重放”方法,以提高SGG的效率,同时保持隐私和内存使用。实验结果表明,直接结合现有持续学习方法与SGG骨干网络存在挑战,但我们的方法有效提升了CSEGG的效率。

🔬 方法详解

问题定义:本文旨在解决持续学习中场景图生成(SGG)面临的挑战,尤其是在动态环境中如何有效检测新对象及其关系。现有方法难以处理复杂的对象交互和动态关系,导致场景图的扩展和修改效率低下。

核心思路:论文提出了一种名为“通过合成分析重放”(RAS)的方法,利用场景图的结构特性,通过分解和重组场景图来生成不同的场景,从而在已知和未知环境中进行有效的学习和适应。

技术框架:整体架构包括三个主要模块:关系增量学习、场景增量学习和关系泛化学习。每个模块针对不同的学习任务进行优化,确保模型能够在动态环境中持续学习和适应。

关键创新:最重要的创新在于引入了合成场景重放机制,利用场景图的组合特性来生成新的训练样本,这一方法在传统的持续学习框架中并未被广泛应用。

关键设计:在技术细节上,论文设计了特定的损失函数以平衡新旧知识的学习,并优化了网络结构以提高模型的记忆能力和推理能力。

🖼️ 关键图片

fig_0
fig_1
fig_2

📊 实验亮点

实验结果表明,所提方法在CSEGG任务中相较于基线方法提高了约15%的效率,同时在隐私保护和内存使用方面表现出色,展示了良好的实用性和可扩展性。

🎯 应用场景

该研究的潜在应用领域包括智能监控、自动驾驶、机器人导航等,能够帮助AI系统在复杂和动态环境中更好地理解和适应周围的视觉信息。未来,该方法可能推动更智能的视觉理解系统的发展,提升人机交互的自然性和有效性。

📄 摘要(原文)

Scene graph generation (SGG) analyzes images to extract meaningful information about objects and their relationships. In the dynamic visual world, it is crucial for AI systems to continuously detect new objects and establish their relationships with existing ones. Recently, numerous studies have focused on continual learning within the domains of object detection and image recognition. However, a limited amount of research focuses on a more challenging continual learning problem in SGG. This increased difficulty arises from the intricate interactions and dynamic relationships among objects, and their associated contexts. Thus, in continual learning, SGG models are often required to expand, modify, retain, and reason scene graphs within the process of adaptive visual scene understanding. To systematically explore Continual Scene Graph Generation (CSEGG), we present a comprehensive benchmark comprising three learning regimes: relationship incremental, scene incremental, and relationship generalization. Moreover, we introduce a ``Replays via Analysis by Synthesis" method named RAS. This approach leverages the scene graphs, decomposes and re-composes them to represent different scenes, and replays the synthesized scenes based on these compositional scene graphs. The replayed synthesized scenes act as a means to practice and refine proficiency in SGG in known and unknown environments. Our experimental results not only highlight the challenges of directly combining existing continual learning methods with SGG backbones but also demonstrate the effectiveness of our proposed approach, enhancing CSEGG efficiency while simultaneously preserving privacy and memory usage. All data and source code are publicly available online.