人工智能项目资料-基于排队论和图像识别的核酸检测预约系统.zip

package com.wzt.yolov5; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.appcompat.widget.Toolbar; import androidx.camera.core.CameraX; import androidx.camera.core.ImageAnalysis; import androidx.camera.core.ImageAnalysisConfig; import androidx.camera.core.ImageProxy; import androidx.camera.core.Preview; import androidx.camera.core.PreviewConfig; import androidx.camera.core.UseCase; import androidx.core.app.ActivityCompat; import androidx.lifecycle.LifecycleOwner; import android.Manifest; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.ImageFormat; import android.graphics.Matrix; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.YuvImage; import android.os.Bundle; import android.util.Size; import android.view.TextureView; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.nio.ByteBuffer; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.atomic.AtomicBoolean; import retrofit2.Call; import retrofit2.Callback; import retrofit2.Response; import retrofit2.Retrofit; import retrofit2.converter.gson.GsonConverterFactory; import wseemann.media.FFmpegMediaMetadataRetriever; public class MainActivity extends AppCompatActivity { public static int YOLOV5S = 1; public static int USE_MODEL = YOLOV5S; public static boolean USE_GPU = false; private static final int REQUEST_CAMERA = 1; private int width; private int height; private double threshold = 0.3f; private double nms_threshold = 0.7f; private long total_time; int fps_count = 0; private long startTime = 0; private long endTime = 0; public static String location_id;//位置id private int lastNum;//上次人数 private int NumOfPeople=0;//当前人数 public static int time_interval=2000;//识别时间间隔（毫秒） private static PostRequest_Interface request; private Toolbar toolbar; private ImageView resultImageView; private TextView tvInfo; private TextureView viewFinder; protected Bitmap mutableBitmap; FFmpegMediaMetadataRetriever mmr; public static CameraX.LensFacing CAMERA_ID = CameraX.LensFacing.BACK; ExecutorService detectService = Executors.newSingleThreadExecutor(); private static String[] PERMISSIONS_CAMERA = {Manifest.permission.CAMERA}; private AtomicBoolean detectCamera = new AtomicBoolean(false); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); int permission = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA); if (permission != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions( this, PERMISSIONS_CAMERA, REQUEST_CAMERA ); finish(); } YOLOv5.init(getAssets(), USE_GPU); toolbar = findViewById(R.id.tool_bar); resultImageView = findViewById(R.id.imageView); tvInfo = findViewById(R.id.tv_info); viewFinder = findViewById(R.id.view_finder); toolbar.setNavigationIcon(R.drawable.actionbar_dark_back_icon); toolbar.setNavigationOnClickListener(v -> finish()); //步骤4:创建Retrofit对象 Retrofit retrofit = new Retrofit.Builder() .baseUrl("http://192.168.3.107:8080/hesuan/") // 设置 网络请求 Url .addConverterFactory(GsonConverterFactory.create()) //设置使用Gson解析(记得加入依赖) .build(); // 步骤5:创建 网络请求接口 的实例 request = retrofit.create(PostRequest_Interface.class); viewFinder.addOnLayoutChangeListener(new View.OnLayoutChangeListener() { @Override public void onLayoutChange(View view, int i, int i1, int i2, int i3, int i4, int i5, int i6, int i7) { updateTransform(); } }); viewFinder.post(new Runnable() { @Override public void run() { startCamera(); } }); } private void updateTransform() { Matrix matrix = new Matrix(); // Compute the center of the view finder float centerX = viewFinder.getWidth() / 2f; float centerY = viewFinder.getHeight() / 2f; float[] rotations = {0, 90, 180, 270}; // Correct preview output to account for display rotation float rotationDegrees = rotations[viewFinder.getDisplay().getRotation()]; matrix.postRotate(-rotationDegrees, centerX, centerY); // Finally, apply transformations to our TextureView viewFinder.setTransform(matrix); } private void startCamera() { CameraX.unbindAll(); PreviewConfig previewConfig = new PreviewConfig.Builder() .setLensFacing(CAMERA_ID) //.setTargetAspectRatio(Rational.NEGATIVE_INFINITY) // 宽高比 .setTargetResolution(new Size(480, 640)) // 分辨率 .build(); Preview preview = new Preview(previewConfig); preview.setOnPreviewOutputUpdateListener(new Preview.OnPreviewOutputUpdateListener() { @Override public void onUpdated(Preview.PreviewOutput output) { ViewGroup parent = (ViewGroup) viewFinder.getParent(); parent.removeView(viewFinder); parent.addView(viewFinder, 0); viewFinder.setSurfaceTexture(output.getSurfaceTexture()); updateTransform(); } }); DetectAnalyzer detectAnalyzer = new DetectAnalyzer(); CameraX.bindToLifecycle((LifecycleOwner) this, preview, gainAnalyzer(detectAnalyzer)); } private UseCase gainAnalyzer(DetectAnalyzer detectAnalyzer) { ImageAnalysisConfig.Builder analysisConfigBuilder = new ImageAnalysisConfig.Builder(); analysisConfigBuilder.setImageReaderMode(ImageAnalysis.ImageReaderMode.ACQUIRE_LATEST_IMAGE); analysisConfigBuilder.setTargetResolution(new Size(480, 640)); // 输出预览图像尺寸 ImageAnalysisConfig config = analysisConfigBuilder.build(); ImageAnalysis analysis = new ImageAnalysis(config); analysis.setAnalyzer(detectAnalyzer); return analysis; } private class DetectAnalyzer implements ImageAnalysis.Analyzer { @Override public void analyze(ImageProxy image, final int rotationDegrees) { detectOnModel(image, rotationDegrees); } } private void detectOnModel(ImageProxy image, final int rotationDegrees) { if (detectCamera.get()) { return; } startTime = System.currentTimeMillis(); //用于控制识别时间间隔 if((startTime-endTime)<time_interval){ return; } detectCamera.set(true); final Bitmap bitmapsrc = imageToBitmap(image); // 格式转换 if (detectService == null) { detectCamera.set(false); return; } detectService.execute(new Runnable() { @Override public void run() { Matrix matrix = new Matrix(); matrix.postRotate(rotationDegrees); width = bitmapsrc.getWidth(); height = bitmapsrc.getHeight(); Bitmap bitmap = Bitmap.createBitmap(bitmapsrc, 0, 0, width, height, matrix, false); detectAndDraw(