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imsoo / fight_detection

Real time Fight Detection Based on 2D Pose Estimation and RNN Action Recognition
MIT License
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feature vector format #8

Open WilliamWang1994 opened 4 years ago

WilliamWang1994 commented 4 years ago

download feature vector not match the description(angle,Δangle,Δpoint)

Hi i download the feature vector dataset from the link:https://drive.google.com/file/d/1ZNJDzQUjo2lDPwGoVkRLg77eA57dKUqx/view

the content of the download feature vector like this:

182.121,0.0372238,94.563,316.817,0.0580139,88.1386,76.9897,0.0069809, 85.9977,33.9192,0.0205917,80.3989,0,0,0,0, 0,0,0,0,0,0,0,0

182.137,0.540245,94.0227,316.774,0.898399,89.037,76.9441,0.00663757, 86.0043,36.2493,0.269905,80.6688,0,0,0,0, 0,0,0,0,0,0,0,0

i think the second line of the second feature vector must not the Δangle, so i check the all of dataset.i guess i nedd a description of the dataset feature vector format. thanks

imsoo commented 4 years ago

@WilliamWang1994

Thank you for your interest in this repo.

First of all, Sorry for the confusion.

The format of feature vector is as below. ( { Δpoint, Δangle, angle } Repeat 8 times )

IDX 1 2 3 4 5 6
Type Δpoint Δangle angle Δpoint Δangle angle
Joint RELBOW RSHOULDER - RELBOW RSHOULDER - RELBOW RWRIST RELBOW - RWRIST RELBOW - RWRIST
Value 182.121 0.0372238 94.563 316.817 0.0580139 88.1386

The joint data order is as below.

https://github.com/imsoo/fight_detection/blob/f6a435ce03bda03d1f722058c1fce44b231da254/server/src/people.cpp#L72-L84

WilliamWang1994 commented 4 years ago

@imsoo i got it & very thankful.

kenshinli2000 commented 4 years ago

@imsoo Hi, I was examining the dataset. I noticed that Δpoint of each vector of the same joint seems unusually large. Taking for example, pose3_stand.txt. The 1st element (corresponding to right elbow) of each feature vector for 1st 3 frames are : 182.121, ... 182.137, .. 179.913, ...

if Δpoint is 2D distance from previous position to the current position, shouldn't it be smaller and maybe even closer to zero for standing posture? and 180 pixels is quite a significant distance considering that the images are 720 x 480. Am I missing something?

Appreciate if you can help clarify. Thanks and great work on the project

blackwool commented 3 years ago

@imsoo Hi ,there I have the same question of Δpoint value. by the way ,are all the images size 720 * 480 ? if not ,i think that normalize all the values to [0,1] will be better 。 Appreciate for you reply