WebOct 24, 2024 · 目录1. Motivation1.1 存在的问题1.2 本文的解决方法2. Generalized Focal Loss(GFL)2.1 Quality Focal Loss (QFL)2.2 Distribution Focal Loss (DFL)2.3 Generalized Focal Loss (GFL)2.4 total loss3. 实验论文:Generalized Focal Loss: Learning Qualified and Distributed Bounding Boxes f WebD. Focal Loss Focal loss (FL) [9] can also be seen as variation of Binary Cross-Entropy. It down-weights the contribution of easy examples and enables the model to focus more on learning hard examples. It works well for highly imbalanced class scenarios, as shown in fig 1. Lets look at how this focal loss is designed.
Generalized Focal Loss:Focal loss魔改以及预测框概 …
WebFocal Loss for Dense Object Detection. ICCV2024 RBG和Kaiming大神的新作。. 论文目标. 我们知道object detection的算法主要可以分为两大类:two-stage detector和one-stage detector。前者是指类似Faster … WebJan 12, 2024 · 针对这里的DFL(Distribution Focal Loss),其主要是将框的位置建模成一个 general distribution,让网络快速的聚焦于和目标位置距离近的位置的分布。 图片 DFL … titans roster nfl.com
[1708.02002] Focal Loss for Dense Object Detection
WebFeb 13, 2024 · Focal Loss. 何凯明团队在RetinaNet论文中引入了Focal Loss来解决难易样本数量不平衡,我们来回顾一下。 我们知道,One-Stage的目标检测器通常会产生10k数量级的框,但只有极少数是正样本,正负样本数量非常不平衡。我们在计算分类的时候常用的损失——交叉熵的 ... WebNov 12, 2024 · 为了高效地学习准确的预测框及其分布,论文对Focal loss进行拓展,提出了能够优化连续值目标的Generalized Focal loss,包含Quality Focal loss和Distribution Focal loss两种具体形式。. QFL用于学习更好 … WebSep 14, 2024 · 仍然从Cross-Entropy和它的一些改进说起,这一类Loss函数可以叫做 Pixel-Level 的Loss,因为他们都是把分割问题看做对每个点的分类,这一类包括:. 1. CE (cross-entropy)。. 2. wCE (weighted cross … titans rugby league