动态手势识别(VGG11)

news2024/12/23 10:53:22

学校的大作业要做一个视频图像处理相关的，就做了动态手势识别
VGG代码

import torch
import torch.nn as nn


class VGG_11_3D(nn.Module):
    def __init__(self, num_classes, pretrained=False):
        super(VGG_11_3D, self).__init__()
        self.conv1 = nn.Conv3d(3, 64, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # 定义卷积层conv1
        self.pool1 = nn.MaxPool3d(kernel_size=(
            1, 2, 2), stride=(1, 2, 2))  # 定义池化层pool1

        self.conv2 = nn.Conv3d(64, 128, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # 定义卷积层conv2
        self.pool2 = nn.MaxPool3d(kernel_size=(
            2, 2, 2), stride=(2, 2, 2))  # 定义池化层pool2

        self.conv3a = nn.Conv3d(128, 256, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # conv3a
        self.conv3b = nn.Conv3d(256, 256, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # conv3b
        self.pool3 = nn.MaxPool3d(kernel_size=(
            2, 2, 2), stride=(2, 2, 2))  # 定义池化层pooL3

        self.conv4a = nn.Conv3d(256, 512, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # conv4a
        self.conv4b = nn.Conv3d(512, 512, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # conv4b
        self.pool4 = nn.MaxPool3d(kernel_size=(
            2, 2, 2), stride=(2, 2, 2))  # 定义池化层pool4

        self.conv5a = nn.Conv3d(512, 512, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # conv5a
        self.conv5b = nn.Conv3d(512, 512, kernel_size=(
            3, 3, 3), padding=(1, 1, 1))  # conv5b
        self.pool5 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(
            2, 2, 2), padding=(0, 1, 1))  # 定义池化层pool5

        # self.fc6=nn.Linear(8192,  4096)# 定义线性全连接层fC6
        self.fc6 = nn.Linear(8192, 4096)  # 定义线性全连接层fC6
        self.fc7 = nn.Linear(4096, 4096)  # 定义线性全连接层fc7
        self.fc8 = nn.Linear(4096, num_classes)  # 定义线性全连接层fc8
        self.relu = nn.ReLU()  # 定义激活函数ReLU
        self.dropout = nn.Dropout(p=0.5)  # 定义Dropout层

        self.__init_weight()

    def forward(self, x):
        x = self.relu(self.conv1(x))  # 数据经过conv1层后经过激活函数激活
        x = self.pool1(x)  # 数据经过p0oL1层进行池化操作

        x = self.relu(self.conv2(x))  # 数据经过conv2层后经过激活函数激活
        x = self.pool2(x)  # 数据经过pooL2层进行池化操作

        x = self.relu(self.conv3a(x))  # 数据经过conv3a层后经过激活函数激活
        x = self.relu(self.conv3b(x))  # 数据经过conv3b层后经过激活函数激活
        x = self.pool3(x)  # 数据经过pooL3层进行池化操作

        x = self.relu(self.conv4a(x))  # 数据经过conv4a层后经过激活函数激活
        x = self.relu(self.conv4b(x))  # 数据经过conv4b层后经过激活函数激活
        x = self.pool4(x)  # 数据经过pool4层进行池化操作

        x = self.relu(self.conv5a(x))  # 数据经过conv4a层后经过激活函数激活
        x = self.relu(self.conv5b(x))  # 数据经过conv4b层后经过激活函数激活
        x = self.pool5(x)  # 数据经过pool4层进行池化操作

        # 经过p0o15池化以后特征图的大小为(512,1,4,4)，利用vie函数将其转化为(1,8192)
        x = x.view(x.shape[0], -1)
        # x = x.view(-1, 73728)  # 经过p0o15池化以后特征图的大小为(512,1,4,4)，利用vie函数将其转化为(1,8192)
        x = self.relu(self.fc6(x))  # 维度转化以后的数据经过fc6层，并经过激活函数
        x = self.dropout(x)  # 经过dropout层
        x = self.relu(self.fc7(x))  # 数据经过fc7层，并经过激活函数
        x = self.dropout(x)  # 经过dropout层
        x = self.fc8(x)  # 数据经过fc8层，并输出

        return x

    def __init_weight(self):
        for m in self.modules():
            if isinstance(m, nn.Conv3d):
                torch.nn.init.kaiming_normal_(m.weight)


if __name__ == "__main__":
    from torchsummary import summary

    device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    net = VGG_11_3D(num_classes=27, pretrained=False).to(device)
    print(summary(net, (3, 16, 96, 96)))

主函数:

import cv2
import pandas as pd
from torch import nn

from VGG_11_3D import VGG_11_3D
import torch
import os
import numpy as np

num_classes = 27
# C3D模型实例化
model = VGG_11_3D(num_classes, pretrained=False)
# 将模型放入到训练设备中
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
model.to(device)
pre_epoch = 50
checkpoint = torch.load(os.path.join(
 'VGG-11-3D_epoch-' + str(pre_epoch) + '.pth.tar'))
# epoch = checkpoint['epoch']
model.load_state_dict(checkpoint['state_dict'])
# optimizer.load_state_dict(checkpoint['opt_dict'])
# 开始模型的测试
model.eval()

# 获取对应视频的标签，并将标签转化为int的数字类型，同时转化为array格式
labels = list(pd.read_csv('./labels/labels.csv', header=None)[0].values)

# 打开摄像头
cap = cv2.VideoCapture(0)
# cap.set(cv2.CAP_PROP_FPS, 16) # 设置帧速
# cap.set(cv2.CAP_PROP_FRAME_WIDTH, 176)  # 设置宽度
# cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 100)  # 设置高度
target_fps = 16  # 按16的帧率采样
cap_fps = cap.get(cv2.CAP_PROP_FPS)
delta = cap_fps // (target_fps - 1)  # 每delta帧采样1帧

print(delta)
cnt = 0
# 循环读取摄像头数据
buffer = []
while True:
 ret, frame = cap.read()
 frame_ = cv2.resize(frame, (96, 96))
 if cnt % delta == 0:
     buffer.append(np.array(frame_).astype(np.float64))
     if len(buffer) > 16:
         buffer.pop(0)  # 弹出开头的帧
     if len(buffer) == 16:
         inputs = np.array(buffer, dtype='float32')
         inputs = np.expand_dims(inputs, axis=0)
         inputs = inputs.transpose((0, 4, 1, 2, 3))
         inputs = torch.from_numpy(inputs).contiguous()
         inputs = inputs.to(device)
         # 用模型进行识别z
         with torch.no_grad():
             outputs = model(inputs)

         # 计算softmax的输出概率
         probs = nn.Softmax(dim=1)(outputs)
         # 计算最大概率值的标签
         preds = torch.max(probs, 1)[1]
         label_name = labels[preds.item()]
         print(label_name)
         cv2.putText(frame, label_name, (20, 20),
                     cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0, 0, 255), 2)

 # 在窗口中显示摄像头画面
 cv2.imshow('Camera', frame)
 # print(frame.shape)
 cnt += 1
 # 按下 'q' 键停止摄像头
 if cv2.waitKey(1) & 0xFF == ord('q'):
     break

# 关闭摄像头
cap.release()
cv2.destroyAllWindows()