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Questions tagged [pose-estimation]

The specific task of determining the position and orientation of an object in an image relative to the camera coordinates is called Pose Estimation.

The pose of a camera is also known as the camera Extrinsic Parameters. It is a 3x4 matrix where the first 3 columns are the rotation (orientation) and the las column is the translation (position).

Camera Pose matrix. Rotation and Translation

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Blender 3D to 2D Transformation giving wrong bounding box coordinates

Hello fellow stack overflowers, I was trying to use some 6D Pose Estimation algorithm with a custom dataset. Its going pretty good but I need to save the labels aka the 2d coordinates of the bounding box showed in the picture. Unfortunaly it doesnt…
deweezy
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What is the unit of distanceThresh in OpenCV's recoverPose function?

I have been working on Visual Odometry and using OpenCV's recoverPose function to decompose the Essential Matrix into a rotation matrix and translation unit vector. int cv::recoverPose(InputArray E, InputArray …
Milan
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How to calculate OKS to pose similarity?

I am trying to calculate pose similarity, the first approach that I am using is the cosine similarity betweenkeypoints+probability of two positions like this: (dot(a, b)/(norm(a)*norm(b))) a is equal to array([ 625, 353.5, 0.96826,…
Tlaloc-ES
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How to evaluate MoveNet.SinglePose.Lightning using COCOEval API?

I’m trying to evaluate MoveNet.SinglePose.Lightning using the COCOEval API. However, I do not know how to calculate the score to use for evaluation. Referring to the Results Format page, one score must be set for each inference result for the…
ozwis
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Methods to track marked points in a stationary video?

Not sure where to ask this. Please redirect me if SO is not the place. I want make a web app that accurately tracks pose in a stationary video of someone pedaling a stationary bike. The joints can be marked with some stickers to make the process…
KarelPrdel
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I am not understanding the reason for this error 'cameraMatrix' is an invalid keyword argument for detectMarkers()

Full error is: OpenCV(4.7.0) :-1: error: (-5:Bad argument) in function 'detectMarkers' > Overload resolution failed: > - 'cameraMatrix' is an invalid keyword argument for detectMarkers() My camera calibration code works fine (to my understanding)…
NiccyT
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Converting a weak perspective Camera (SMPL) to a orthographic/perspective projection model

I am currently trying to import and parse outputs from the SMPL/VIBE model into Blender. The goal is to overlay the predicted mesh/armature on the original image and render it in blender similar to the visualization that is output by pyrenderer as…
BigTing
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Pose Estimation Using Associative Embedding technique

In Pose Estimation Using Associative Embedding technique I still don't have clarity regarding How we can group the detected points from HeatMaps to Individual Human Poses using Associative Embeddings Layer. Is there any code that clearly gives Idea…
Ajesh Mon R
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mediapipe .process() kills kernel

I am trying to use mediapipe pose to export the coordinates of the keypoints of the human body when rowing to a csv file. My main problem is with the .process() function that keeps throwing up an error whenever I execute the cell. I have previously…
Shyam Siva
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How to construct depth map with stereo vision if the extrinsic and intrinsic matrixes are unknown?

Task: Given 2 images from 2 different cameras, construct a depth map from the point of view of the 1st camera. The cameras are not calibrated, so the extrinsic and intrinsic matrices are unknown. We know that the cameras are in slightly different…
leevii
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Project 3D points to 2D points in python

I'm trying to project 3D body keypoints to 2D keypoints, My 3D points are: points = np.array([[-7.55801499e-02, -3.69511306e-01, -2.63576955e-01], [ 0.00000000e+00, 0.00000000e+00, 0.00000000e+00], [ 3.08661222e-01, -2.93346141e-02, …
Graphics Engineer
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The computation time of Mediapipe BlazePose

Mediapipe Blazepose computation time varied with minimum confidence, code as follows: import os from turtle import color import cv2 from cv2 import circle import mediapipe as md import numpy as np import time import json import math from…
Fakeye
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NeRF camera parameters from 2D face image data

I'm new in NeRF. I'm trying to make view synthesis using 2d face image dataset like FFHQ. I extracted camera pose as below from my trained model to get UV_postion map. 3.815960444873149338e-01 2.011289213814117585e-02 -2.146695841125471627e-01…
Hong-jik Kim
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Converting Human Pose heatmaps into skeleton keypoints

I am using HRNet estimator for extracting Human Poses and Heatmaps. SimpleHRNet I was processing a lot of videos to save pose keypoints and heatmaps and after the processing, I realized there's some major error in the pose keypoints files, but…
NitishJaiswal
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How to compare graphs of 2 time series data

I have 2 dataframes containing movements of a person and want to compare how similar they are to each other or to be precise how well is person 2 able to copy person 1. import pandas as pd fp = pd.read_csv("first_person.csv") sp =…
pavan
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