srch

07.09.2020 · IOU是比值的概念，对目标物体的scale是不敏感的。然而常用的BBox的回归损失优化和IOU优化不是完全等价的，寻常的IOU无法直接优化没有重叠的部分。于是有人提出直接使用IOU作为回归优化loss，CIOU是其中非常优秀的一种想法。CIOU将目标与anchor之间的距离，重叠率、尺度以及惩罚项都考虑进去，使得 ...

Jun 25, 2020 · Did you implement CIoU-loss? #124. AlexeyAB opened this issue on Jun 25, 2020 · 3 comments. Comments.

Oct 21, 2021 · @Inproceedings{zheng2020diou, author = {Zheng, Zhaohui and Wang, Ping and Liu, Wei and Li, Jinze and Ye, Rongguang and Ren, Dongwei}, title = {Distance-IoU Loss: Faster and Better Learning for Bounding Box Regression}, booktitle = {The AAAI Conference on Artificial Intelligence (AAAI)}, year = {2020}, } @Article{zheng2021ciou, author = {Zheng, Zhaohui and Wang, Ping and Ren, Dongwei and Liu ...

然而常用的BBox的回归损失优化和IOU优化不是完全等价的，寻常的IOU无法直接优化没有重叠的部分。 于是有人提出直接使用IOU作为回归优化loss，CIOU是其中 ...

Aug 26, 2020 · The PyTorch Implementation based on YOLOv4 of the paper: "Complex-YOLO: Real-time 3D Object Detection on Point Clouds" - GitHub - maudzung/Complex-YOLOv4-Pytorch: The PyTorch Implementation based on YOLOv4 of the paper: "Complex-YOLO: Real-time 3D Object Detection on Point Clouds"

21.10.2021 · Please take a look at compute_iou function of lib/utils/net.py for our DIoU and CIoU loss implementation in PyTorch. Normalizers. We also implement a normalizer of final bounding box refinement loss. This can be specified with the MODEL.LOSS_BBOX_WEIGHT parameter in the configuration file. The default value is 1.0.

Before running any of the scripts, run: export CUDA_VISIBLE_DEVICES= [gpus] Where you should replace [gpus] with a comma separated list of the index of each GPU you want to use (e.g., 0,1,2,3). You should still do this if only using 1 GPU. You can check the indices of your GPUs with nvidia-smi.

Losses can be chosen with the losstype option in the config/config.py file The valid options are currently: [Iou|Giou|Diou|Ciou|SmoothL1] .

on which a Complete IoU (CIoU) loss is proposed, thereby leading to faster convergence and better ... 3https://github.com/generalized-iou/Detectron.pytorch ...

21.07.2021 · 在目标检测的后处理阶段我们需要用到NMS算法。而在NMS算法里有一个步是需要计算当前score最大的框和其他框的IoU大小的。针对这一步，我们可以进行优化，改变IoU的计算方式。目前经典的IoU计算方式有GIoU,DIoU和CIoU。我们可以在传统的NMS算法中进行修改实现CIoU NMS,DIoU NMS和GIoU NMS。

Hello All, I am trying to implement IOU as loss function for my semantic segmentation problem which has multiple classed.

05.12.2019 · HI, zhao hui: I try DIOU loss in Retinanet and it can converge well. But when i try CIOU loss in Retinanet, it can not converge stable. I use your code and have an question ？The equation (12) in your paper. You have replace many …

class torch.nn.CrossEntropyLoss(weight=None, size_average=None, ignore_index=- 100, reduce=None, reduction='mean', label_smoothing=0.0) [source] This criterion computes the cross entropy loss between input and target. It is useful when training a classification problem with C classes. If provided, the optional argument weight should be a 1D ...

Thanks for sharing the code. I have noticed that in your other repositories (for example, https://github.com/Zzh-tju/DIoU-pytorch-detectron), you implement ...

21.10.2021 · Complete-IoU (CIoU) Loss and Cluster-NMS for Object Detection and Instance Segmentation (YOLACT) - GitHub - Zzh-tju/CIoU: Complete-IoU (CIoU) Loss and Cluster-NMS for Object Detection and Instance Segmentation (YOLACT)

25.06.2020 · Did you implement CIoU-loss? #124. AlexeyAB opened this issue on Jun 25, 2020 · 3 comments. Comments.

Zzh-tju/DIoU official. 257 ; PaddlePaddle/PaddleDetection. 5,868 ; maudzung/Complex-YOLOv4-Pytorch. 836 ; Zzh-tju/DIoU-darknet. 301 ; Zzh-tju/CIoU.

Python: https://github.com/VCasecnikovs/Yet-Another-YOLOv4-Pytorch/blob/ ... This means that the loss of ciou is not being used and that the ...

Dec 05, 2019 · def ciou_loss (self, y_true, y_pred): """ Implements the GIoU loss function. CIoU is an enhancement for models which use IoU in object detection. Args: y_true: true targets tensor. The coordinates of the each bounding box in boxes are encoded as [y_min, x_min, y_max, x_max]. y_pred: predictions tensor.

However i cant seem to find reg loss to be 2 anywhere. In https://github.com/generalized-iou/Detectron.pytorch they use the value 1. If the DIOU loss seems to ...

24.05.2020 · 睿智的目标检测30——Pytorch搭建YoloV4目标检测平台学习前言什么是YOLOV4代码下载YOLOV4改进的部分（不完全）YOLOV4结构解析1、主干特征提取网络Backbone2、特征金字塔3、YoloHead利用获得到的特征进行预测4、预测结果的解码5、在原图上进行绘制YOLOV4的训练1、YOLOV4的改进训练技巧a)、Mosaic数据增强b)、Label ...

Zzh-tju/CIoU, Complete-IoU Loss and Cluster-NMS for Improving Object Detection and Instance ... for our CIoU loss implementation in PyTorch.

Oct 21, 2021 · Please take a look at compute_iou function of lib/utils/net.py for our DIoU and CIoU loss implementation in PyTorch. Normalizers. We also implement a normalizer of final bounding box refinement loss. This can be specified with the MODEL.LOSS_BBOX_WEIGHT parameter in the configuration file. The default value is 1.0.

CIoU loss在DIoU loss的基础上增加了一项av（a为权重系数，v用来度量长宽比的相似性），用来衡量预测框和目标框的长宽比，使得回归方向更加合理。同样，在NMS后处理中，CIoU也可以替换IoU评价策略，使得NMS得到的结果更加合理。 ... pytorch 图像分类与 ...

Sep 07, 2020 · Pytorch机器学习（五）——目标检测中的损失函数（l2，IOU，GIOU,CIOU） 目录 Pytorch机器学习（五）——目标检测中的损失函数（l2，IOU，GIOU,CIOU） 前言 一、l2范数损失 二、IOU损失 二、GIOU损失 三、CIOU损失 总结 前言 目标检测领域，从发展到现在这个阶段，出现过很多次有关预测框损失函数的讨论与 ...

03.03.2021 · 目标检测—CIOU原理及代码实现最近刚写完一篇YOLO V4-tiny的blog，其中Tensorflow2.0—YOLO V4-tiny网络原理及代码解析（三）- 损失函数的构建涉及到了CIOU。所以特地单独领出来写一篇blog记录一下。在YOLO V3中，对于位置的损失函数，使用的还是普通的smooth-l1损失函数，但是到了YOLO V4中，关于位置的损失函数 ...