0


在学习非参数零件模型中的链接特征

Using linking features in learning non-parametric part models
课程网址: http://videolectures.net/eccv2012_karlinsky_models/  
主讲教师: Stefan Carlsson; Antonio Torralba; Leonid Karlinsky
开课单位: 魏茨曼科学研究所
开课时间: 2012-11-12
课程语种: 英语
中文简介:
我们提出了一种检测人体等高度变形物体的方法。我们学习并使用支持特定成对零件配置的特殊观察到的“链接”特征,而不是使用大多数现有的零件到零件关系建模方法所使用的相对角度的运动约束。除了对单个零件的外观进行建模外,当前的方法还添加了对零件链接外观的建模,这表明可以提供有用的信息。例如,通过观察肘部的相应外观或其他相关特征来支撑下臂和上臂的配置。该模型结合了测试图像中观察到的所有链接特征的支持,从而推断出所有感兴趣部分最可能的关节配置。该方法使用带注释零件的图像进行训练,但不假定已知的零件连接或连接参数,并且在训练期间自动发现连接特征。我们在两个具有挑战性的人体部位检测数据集上评估了所提出方法的性能,并获得了可比的性能,在某些情况下优于最先进的性能。此外,该方法的通用性通过在不修改动物部分和面部基准点数据集的部分检测的情况下应用来体现。
课程简介: We present an approach to the detection of parts of highly deformable objects, such as the human body. Instead of using kinematic constraints on relative angles used by most existing approaches for modeling part-to-part relations, we learn and use special observed 'linking' features that support particular pairwise part configurations. In addition to modeling the appearance of individual parts, the current approach adds modeling of the appearance of part-linking, which is shown to provide useful information. For example, configurations of the lower and upper arms are supported by observing corresponding appearances of the elbow or other relevant features. The proposed model combines the support from all the linking features observed in a test image to infer the most likely joint configuration of all the parts of interest. The approach is trained using images with annotated parts, but no a-priori known part connections or connection parameters are assumed, and the linking features are discovered automatically during training. We evaluate the performance of the proposed approach on two challenging human body parts detection datasets, and obtain performance comparable, and in some cases superior, to the state-of-the-art. In addition, the approach generality is shown by applying it without modification to part detection on datasets of animal parts and of facial fiducial points.
关 键 词: 计算机科学; 计算机视觉; 物体识别
课程来源: 视频讲座网
最后编审: 2019-12-07:lxf
阅读次数: 24