Object instance segmentation is a key challenge for indoor robots navigating cluttered environments with many small objects. Limitations in 3D sensing capabilities often make it difficult to detect every possible object. While deep learning approaches may be effective for this problem, manually annotating 3D data for supervised learning is time-consuming. In this work, we explore zero-shot instance segmentation (ZSIS) from RGB-D data to identify unseen objects in a semantic category-agnostic manner. We introduce a zero-shot split for Tabletop Objects Dataset (TOD-Z) to enable this study and present a method that uses annotated objects to learn the ``objectness'' of pixels and generalize to unseen object categories in cluttered indoor environments. Our method, SupeRGB-D, groups pixels into small patches based on geometric cues and learns to merge the patches in a deep agglomerative clustering fashion. SupeRGB-D outperforms existing baselines on unseen objects while achieving similar performance on seen objects. Additionally, it is extremely lightweight (0.4 MB memory requirement) and suitable for mobile and robotic applications. The dataset split and code will be made publicly available upon acceptance.

随着深度学习的出现，估计来自单个RGB图像的深度最近受到了很多关注，能够赋予许多不同的应用，从用于计算电影的机器人的路径规划范围。尽管如此，虽然深度地图完全可靠，但对象不连续的估计仍然远非令人满意。这可以有助于卷积运营商自然地聚集在对象不连续性的特征的事实中，导致平滑的过渡而不是明确的边界。因此，为了规避这个问题，我们提出了一种新颖的卷积运营商，明确地定制，以避免不同对象部件的特征聚合。特别地，我们的方法基于借助于超像素估计每个部分深度值。所提出的卷积运算符，我们将“实例卷积”，然后仅在估计的超像素的基础上单独考虑每个对象部分。我们对NYUV2以及IBIMS数据集的评估清楚地展示了在估计遮挡边界周围估算深度的经典卷积上的实例卷积的优越性，同时在其他地方产生了可比结果。代码将在接受时公开提供。

A hallmark of the deep learning era for computer vision is the successful use of large-scale labeled datasets to train feature representations for tasks ranging from object recognition and semantic segmentation to optical flow estimation and novel view synthesis of 3D scenes. In this work, we aim to learn dense discriminative object representations for low-shot category recognition without requiring any category labels. To this end, we propose Deep Object Patch Encodings (DOPE), which can be trained from multiple views of object instances without any category or semantic object part labels. To train DOPE, we assume access to sparse depths, foreground masks and known cameras, to obtain pixel-level correspondences between views of an object, and use this to formulate a self-supervised learning task to learn discriminative object patches. We find that DOPE can directly be used for low-shot classification of novel categories using local-part matching, and is competitive with and outperforms supervised and self-supervised learning baselines. Code and data available at https://github.com/rehg-lab/dope_selfsup.

Generalizable 3D part segmentation is important but challenging in vision and robotics. Training deep models via conventional supervised methods requires large-scale 3D datasets with fine-grained part annotations, which are costly to collect. This paper explores an alternative way for low-shot part segmentation of 3D point clouds by leveraging a pretrained image-language model, GLIP, which achieves superior performance on open-vocabulary 2D detection. We transfer the rich knowledge from 2D to 3D through GLIP-based part detection on point cloud rendering and a novel 2D-to-3D label lifting algorithm. We also utilize multi-view 3D priors and few-shot prompt tuning to boost performance significantly. Extensive evaluation on PartNet and PartNet-Mobility datasets shows that our method enables excellent zero-shot 3D part segmentation. Our few-shot version not only outperforms existing few-shot approaches by a large margin but also achieves highly competitive results compared to the fully supervised counterpart. Furthermore, we demonstrate that our method can be directly applied to iPhone-scanned point clouds without significant domain gaps.

随着现代建筑倾向于使用大量玻璃面板，玻璃表面变得越来越无处不在。然而，这对机器人，自动驾驶汽车和无人机等自主系统的运营构成了重大挑战，因为玻璃板可能会成为导航的透明障碍。存在的工作试图利用各种线索，包括玻璃边界上下文或反思，例如先验。但是，它们都是基于输入RGB图像的。我们观察到3D深度传感器光线通过玻璃表面的传输通常会在深度图中产生空白区域，这可以提供其他见解以补充RGB图像特征以进行玻璃表面检测。在本文中，我们通过将RGB-D信息合并到两个新型模块中提出了一个新颖的玻璃表面检测框架：（1）一个跨模式环境挖掘（CCM）模块，以适应从RGB和深度学习个人和相互的上下文特征信息，以及（2）深度失误的注意力（DAA）模块，以明确利用空间位置，在这些空间位置存在缺失的深度以帮助检测玻璃表面的存在。此外，我们提出了一个大规模的RGB-D玻璃表面检测数据集，称为\ textit {RGB-D GSD}，用于RGB-D玻璃表面检测。我们的数据集包含3,009个现实世界的RGB-D玻璃表面图像，并具有精确的注释。广泛的实验结果表明，我们提出的模型优于最先进的方法。

我们为来自多视图立体声（MVS）城市场景的3D建筑物的实例分割了一部小说框架。与关注城市场景的语义分割的现有作品不同，即使它们安装在大型和不精确的3D表面模型中，这项工作的重点是检测和分割3D构建实例。通过添加高度图，首先将多视图RGB图像增强到RGBH图像，并且被分段以使用微调的2D实例分割神经网络获得所有屋顶实例。然后将来自不同的多视图图像的屋顶实例掩码被聚集到全局掩码中。我们的面具聚类占空间闭塞和重叠，可以消除多视图图像之间的分割歧义。基于这些全局掩码，3D屋顶实例由掩码背部投影分割，并通过Markov随机字段（MRF）优化扩展到整个建筑实例。定量评估和消融研究表明了该方法的所有主要步骤的有效性。提供了一种用于评估3D建筑模型的实例分割的数据集。据我们所知，它是一个在实例分割级别的3D城市建筑的第一个数据集。

了解单个图像的3D场景是各种任务的基础，例如用于机器人，运动规划或增强现实。来自单个RGB图像的3D感知的现有工作倾向于专注于几何重建，或用语义分割或实例分割的几何重建。受到2D Panoptic分割的启发，我们建议统一几何重建，3D语义分割和3D实例分段的任务，进入Panoptic 3D场景重建的任务 - 从单个RGB图像预测相机中场景的完整几何重建图像的截图，以及语义和实例分割。因此，我们为从单个RGB图像提出了一种全新3D场景的新方法，该方法学习从输入图像到达3D容量场景表示来升力和传播2D特征。我们证明，这种联合场景重建，语义和实例分割的整体视图是有益的，独立地处理任务，从而优于替代方法。

深度完成旨在预测从深度传感器（例如Lidars）中捕获的极稀疏图的密集像素深度。它在各种应用中起着至关重要的作用，例如自动驾驶，3D重建，增强现实和机器人导航。基于深度学习的解决方案已经证明了这项任务的最新成功。在本文中，我们首次提供了全面的文献综述，可帮助读者更好地掌握研究趋势并清楚地了解当前的进步。我们通过通过对现有方法进行分类的新型分类法提出建议，研究网络体系结构，损失功能，基准数据集和学习策略的设计方面的相关研究。此外，我们在包括室内和室外数据集（包括室内和室外数据集）上进行了三个广泛使用基准测试的模型性能进行定量比较。最后，我们讨论了先前作品的挑战，并为读者提供一些有关未来研究方向的见解。

对于机器人来说，拾取透明的对象仍然是一项具有挑战性的任务。透明对象（例如反射和折射）的视觉属性使依赖相机传感的当前抓握方法无法检测和本地化。但是，人类可以通过首先观察其粗剖面，然后戳其感兴趣的区域以获得良好的抓握轮廓来很好地处理透明的物体。受到这一点的启发，我们提出了一个新颖的视觉引导触觉框架，以抓住透明的物体。在拟议的框架中，首先使用分割网络来预测称为戳戳区域的水平上部区域，在该区域中，机器人可以在该区域戳入对象以获得良好的触觉读数，同时导致对物体状态的最小干扰。然后，使用高分辨率胶触觉传感器进行戳戳。鉴于触觉阅读有所改善的当地概况，计划掌握透明物体的启发式掌握。为了减轻对透明对象的现实世界数据收集和标记的局限性，构建了一个大规模逼真的合成数据集。广泛的实验表明，我们提出的分割网络可以预测潜在的戳戳区域，平均平均精度（地图）为0.360，而视觉引导的触觉戳戳可以显着提高抓地力成功率，从38.9％到85.2％。由于其简单性，我们提出的方法也可以被其他力量或触觉传感器采用，并可以用于掌握其他具有挑战性的物体。本文中使用的所有材料均可在https://sites.google.com/view/tactilepoking上获得。

作为许多自主驾驶和机器人活动的基本组成部分，如自我运动估计，障碍避免和场景理解，单眼深度估计（MDE）引起了计算机视觉和机器人社区的极大关注。在过去的几十年中，已经开发了大量方法。然而，据我们所知，对MDE没有全面调查。本文旨在通过审查1970年至2021年之间发布的197个相关条款来弥补这一差距。特别是，我们为涵盖各种方法的MDE提供了全面的调查，介绍了流行的绩效评估指标并汇总公开的数据集。我们还总结了一些代表方法的可用开源实现，并比较了他们的表演。此外，我们在一些重要的机器人任务中审查了MDE的应用。最后，我们通过展示一些有希望的未来研究方向来结束本文。预计本调查有助于读者浏览该研究领域。

现有的计算机视觉系统可以与人类竞争，以理解物体的可见部分，但在描绘部分被遮挡物体的无形部分时，仍然远远远远没有达到人类。图像Amodal的完成旨在使计算机具有类似人类的Amodal完成功能，以了解完整的对象，尽管该对象被部分遮住。这项调查的主要目的是对图像Amodal完成领域的研究热点，关键技术和未来趋势提供直观的理解。首先，我们对这个新兴领域的最新文献进行了全面的评论，探讨了图像Amodal完成中的三个关键任务，包括Amodal形状完成，Amodal外观完成和订单感知。然后，我们检查了与图像Amodal完成有关的流行数据集及其共同的数据收集方法和评估指标。最后，我们讨论了现实世界中的应用程序和未来的研究方向，以实现图像的完成，从而促进了读者对现有技术和即将到来的研究趋势的挑战的理解。

AR/VR应用程序和机器人需要知道场景何时更改。一个示例是从场景中移动，添加或删除对象时。我们提出了仅基于场景更改的3D对象发现方法。我们的方法不需要编码有关对象的任何假设，而是通过利用其连贯的动作来发现对象。最初将变化视为深度图的差异，并在对象进行刚性运动时被分割为对象。图切割优化将不断变化的标签传播到几何一致的区域。实验表明，我们的方法在针对竞争基线的3RSCAN数据集上实现了最先进的性能。我们方法的源代码可以在https://github.com/katadam/objectscanmove上找到。

由于价格合理的可穿戴摄像头和大型注释数据集的可用性，在过去几年中，Egintric Vision（又名第一人称视觉-FPV）的应用程序在过去几年中蓬勃发展。可穿戴摄像机的位置（通常安装在头部上）允许准确记录摄像头佩戴者在其前面的摄像头，尤其是手和操纵物体。这种内在的优势可以从多个角度研究手：将手及其部分定位在图像中；了解双手涉及哪些行动和活动；并开发依靠手势的人类计算机界面。在这项调查中，我们回顾了使用以自我为中心的愿景专注于手的文献，将现有方法分类为：本地化（其中的手或部分在哪里？）；解释（手在做什么？）；和应用程序（例如，使用以上为中心的手提示解决特定问题的系统）。此外，还提供了带有手基注释的最突出的数据集的列表。

零件代表不同对象的几何和语义相似性的基本单位。我们争辩说，部分知识应与观察到的对象课程中有款组合。对此，我们将3D组成零射击学习作为从看作识的零件泛化的问题，从而看成了语义分割。我们通过将任务与所提出的组成部分数据集进行基准测试，提供结构化研究。该数据集是通过处理原始PartNet来创建的，以最大化不同对象的部分重叠。现有点云部分段方法未能在此设置中概括到未遵守的对象类。作为解决方案，我们提出了分解共识，其将零件分割网络与部分评分网络相结合。我们方法的关键直觉是某些部件的分割掩码应该具有与其部分分数分开的零件分数的共识。在生成最合适的分割掩模之前在每个对象部分中定义的不同部分组合的两个网络原因。我们展示了我们的方法允许组成零射分段和广义零拍分类，并在两个任务中建立最先进的状态。

Image segmentation is a key topic in image processing and computer vision with applications such as scene understanding, medical image analysis, robotic perception, video surveillance, augmented reality, and image compression, among many others. Various algorithms for image segmentation have been developed in the literature. Recently, due to the success of deep learning models in a wide range of vision applications, there has been a substantial amount of works aimed at developing image segmentation approaches using deep learning models. In this survey, we provide a comprehensive review of the literature at the time of this writing, covering a broad spectrum of pioneering works for semantic and instance-level segmentation, including fully convolutional pixel-labeling networks, encoder-decoder architectures, multi-scale and pyramid based approaches, recurrent networks, visual attention models, and generative models in adversarial settings. We investigate the similarity, strengths and challenges of these deep learning models, examine the most widely used datasets, report performances, and discuss promising future research directions in this area.

Segmenting humans in 3D indoor scenes has become increasingly important with the rise of human-centered robotics and AR/VR applications. In this direction, we explore the tasks of 3D human semantic-, instance- and multi-human body-part segmentation. Few works have attempted to directly segment humans in point clouds (or depth maps), which is largely due to the lack of training data on humans interacting with 3D scenes. We address this challenge and propose a framework for synthesizing virtual humans in realistic 3D scenes. Synthetic point cloud data is attractive since the domain gap between real and synthetic depth is small compared to images. Our analysis of different training schemes using a combination of synthetic and realistic data shows that synthetic data for pre-training improves performance in a wide variety of segmentation tasks and models. We further propose the first end-to-end model for 3D multi-human body-part segmentation, called Human3D, that performs all the above segmentation tasks in a unified manner. Remarkably, Human3D even outperforms previous task-specific state-of-the-art methods. Finally, we manually annotate humans in test scenes from EgoBody to compare the proposed training schemes and segmentation models.

We address the task of open-world class-agnostic object detection, i.e., detecting every object in an image by learning from a limited number of base object classes. State-of-the-art RGB-based models suffer from overfitting the training classes and often fail at detecting novel-looking objects. This is because RGB-based models primarily rely on appearance similarity to detect novel objects and are also prone to overfitting short-cut cues such as textures and discriminative parts. To address these shortcomings of RGB-based object detectors, we propose incorporating geometric cues such as depth and normals, predicted by general-purpose monocular estimators. Specifically, we use the geometric cues to train an object proposal network for pseudo-labeling unannotated novel objects in the training set. Our resulting Geometry-guided Open-world Object Detector (GOOD) significantly improves detection recall for novel object categories and already performs well with only a few training classes. Using a single "person" class for training on the COCO dataset, GOOD surpasses SOTA methods by 5.0% AR@100, a relative improvement of 24%.

Monocular Depth Estimation (MDE) is a fundamental problem in computer vision with numerous applications. Recently, LIDAR-supervised methods have achieved remarkable per-pixel depth accuracy in outdoor scenes. However, significant errors are typically found in the proximity of depth discontinuities, i.e., depth edges, which often hinder the performance of depth-dependent applications that are sensitive to such inaccuracies, e.g., novel view synthesis and augmented reality. Since direct supervision for the location of depth edges is typically unavailable in sparse LIDAR-based scenes, encouraging the MDE model to produce correct depth edges is not straightforward. In this work we propose to learn to detect the location of depth edges from densely-supervised synthetic data, and use it to generate supervision for the depth edges in the MDE training. %Despite the 'domain gap' between synthetic and real data, we show that depth edges that are estimated directly are significantly more accurate than the ones that emerge indirectly from the MDE training. To quantitatively evaluate our approach, and due to the lack of depth edges ground truth in LIDAR-based scenes, we manually annotated subsets of the KITTI and the DDAD datasets with depth edges ground truth. We demonstrate significant gains in the accuracy of the depth edges with comparable per-pixel depth accuracy on several challenging datasets.

显着对象检测（SOD）模拟了人类视觉感知系统以在场景中定位最具吸引力的对象，已广泛应用于各种计算机视觉任务。现在，随着深度传感器的出现，可以轻松捕获具有富裕的空间信息的深度图，并有利于提高SOD的性能。尽管在过去几年中提出了各种具有有前途的性能的基于RGB-D的SOD模型，但仍缺乏对这些主题的这些模型和挑战的深入了解。在本文中，我们从各个角度提供了基于RGB-D的SOD模型的全面调查，并详细介绍了相关的基准数据集。此外，考虑到光场还可以提供深度图，我们还从该域中回顾了SOD模型和流行的基准数据集。此外，为了研究现有模型的SOD能力，我们进行了全面的评估，以及基于属性的几种基于RGB-D的SOD模型的评估。最后，我们讨论了基于RGB-D的SOD的几个挑战和开放方向，以供未来的研究。将在https://github.com/taozh2017/rgbdsodsurvey上公开提供所有收集的模型，基准数据集，源代码链接，用于基于属性的评估的数据集以及评估代码

Unsupervised object discovery aims to localize objects in images, while removing the dependence on annotations required by most deep learning-based methods. To address this problem, we propose a fully unsupervised, bottom-up approach, for multiple objects discovery. The proposed approach is a two-stage framework. First, instances of object parts are segmented by using the intra-image similarity between self-supervised local features. The second step merges and filters the object parts to form complete object instances. The latter is performed by two CNN models that capture semantic information on objects from the entire dataset. We demonstrate that the pseudo-labels generated by our method provide a better precision-recall trade-off than existing single and multiple objects discovery methods. In particular, we provide state-of-the-art results for both unsupervised class-agnostic object detection and unsupervised image segmentation.