Yzichen

loss计算错误

1

**bug描述** 3.7 3.9中计算交叉熵损失函数时使用tf.nn.CrossEntropyLoss()时，已经作了平均。 但是计算每一个epoch的损失时，又除了整个训练集样本的个数n ，这样对吗？ **版本信息** pytorch:1.13 torchvision:0.4.2 torchtext:无 ...

Will PLUMENet open source?

VOC训练问题

1

我使用ultralytics的yolov3进行了训练，发现根本训练不出来， map连1都上不去， 我发现您也遇到过这个问题，您知道是什么原因吗？

3DSSD performance

1

I noticed that your implemented 3DSSD performs better than the original (about 2 MAP), May I ask what changes have brought about the improvement?

六哥 感觉你这个总结很棒 求持续更新

scene flow

2

Is scene flow defined in camera coordinate system or world coordinate system? Can scene flow represent the real motion field of objects？

Mathematical basis

5

I tested your program, the effect is very good, you are now my idol.However, in the process of learning optical flow and scene flow estimation, I always encounter some formulas...

MRPT

1

How to learn how to use mrpt？ I don't think its official documents are suitable for getting started

Equation (1) deduction

9

Hi， I am a beginner . May I ask a silly question? How did Equation (1) deduct directly from the well-known”pin-hole model”，If you have time, can you send the derivation...

Jacobian matrix of warp function

1

In the process of scene flow solution, warp function needs to be linearized. In Julian Quiroga's paper, The corresponding Jacob matrix of the warp function is:  But here's what...