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Human pose estimation problem in computer vision

Oct 08, 2023 am 10:08 AM
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Human pose estimation problem in computer vision

Human pose estimation problem in computer vision requires specific code examples

Human pose estimation is an important research direction in the field of computer vision, and its goal is to extract data from images or videos Accurately obtain the posture information of the human body, including joint positions, joint angles, etc. Human pose estimation has wide applications in many application fields, such as motion capture, human-computer interaction, virtual reality, etc. This article will introduce the basic principles of human pose estimation and provide specific code examples.

The basic principle of human posture estimation is to infer the posture of the human body by analyzing the key points of the human body in the image (such as head, shoulders, hands, feet, etc.). To achieve this goal, we can use deep learning models such as Convolutional Neural Network (CNN) or Recurrent Neural Network (RNN).

The following is a sample code that uses the open source library OpenPose to implement human pose estimation:

import cv2
import numpy as np
from openpose import OpenPose

# 加载OpenPose模型
openpose = OpenPose("path/to/openpose/models")

# 加载图像
image = cv2.imread("path/to/image.jpg")

# 运行OpenPose模型
poses = openpose.detect(image)

# 显示姿态估计结果
for pose in poses:
    # 绘制骨骼连接
    image = openpose.draw_skeleton(image, pose)
    
    # 绘制关节点
    image = openpose.draw_keypoints(image, pose)

# 显示图像
cv2.imshow("Pose Estimation", image)
cv2.waitKey(0)
cv2.destroyAllWindows()

In the above sample code, we first import the necessary libraries, then load the OpenPose model and load the image. Next, we run the OpenPose model to detect poses, and the result returned is a list containing multiple poses. Finally, we use the drawing function provided by OpenPose to draw the pose estimation results and display the image.

It should be noted that the above sample code is only for demonstration purposes. In fact, realizing human posture estimation requires more complex pre-processing, post-processing and parameter adjustment processes. Furthermore, OpenPose is an open source library that provides more features and options for users to use.

In short, human posture estimation is an important issue in the field of computer vision, which infers the posture of the human body by analyzing key points in the image. This article provides sample code for implementing human posture estimation using the open source library OpenPose. Readers can conduct more in-depth research and development according to their own needs.

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