一、cba賽程
C#攝像頭開發可以在許多領域發揮作用,其中一個領域是體育比賽的直播和錄製。舉例來說,我們可以通過C#編寫程序獲取cba(中國男子籃球職業聯賽)賽程,並且在比賽直播中使用攝像頭將整個比賽現場直接傳送給觀眾。
下面是獲取cba賽程的C#代碼示例:
private string getCbaSchedule() { string url = "https://cba.hupu.com/schedule"; WebClient webClient = new WebClient(); webClient.Encoding = Encoding.UTF8; string html = webClient.DownloadString(url); string pattern = @"([\d]{4}-[\d]{2}-[\d]{2} [^\n]+?) ([^\n]+?)"; MatchCollection matches = Regex.Matches(html, pattern, RegexOptions.Singleline); StringBuilder sb = new StringBuilder(); foreach (Match match in matches) { sb.AppendFormat("{0} {1} {2}\n", match.Groups[2].Value, match.Groups[3].Value, "https://cba.hupu.com/game/" + match.Groups[1].Value); } return sb.ToString(); }
二、coach
C#攝像頭開發可以與人工智能相結合,使應用程序具有更強的智能化功能。我們可以通過C#編寫程序來識別比賽場上的教練員,然後自動獲取他們的背景故事。
下面是使用C#和谷歌雲平台的人臉識別API來識別NBA(美國職業籃球聯賽)教練員和獲取他們的背景故事的示例代碼:
private async Task getCoachBio(string imageUrl) { var serviceCredentials = await GoogleCredential.GetApplicationDefaultAsync(); var client = PhotosLibraryClient.Create(await GooglePhotosApiService.CreateAsync(serviceCredentials)); var faces = client.BatchGetFacesAsync(imageUrl).Result; if (faces != null && faces.Faces.Count > 0) { var person = faces.Faces[0].Person; var url = string.Format("https://en.wikipedia.org/wiki/{0}", person.Name.Replace(" ", "_")); var html = new WebClient().DownloadString(url); var bio = parseBioFromHtml(html); return bio; } else { return "No face detected"; } } private string parseBioFromHtml(string html) { string pattern = @"[\s\S]+?
"; Match match = Regex.Match(html, pattern, RegexOptions.IgnoreCase); string bio = match.Value.Trim(); bio = Regex.Replace(bio, "]*>", string.Empty); return bio; }
三、cctv5節目表
C#攝像頭開發可以利用網絡資源,獲取CCTV5(中國中央電視台體育頻道)的節目表,並使用攝像頭將指定節目實時直播給觀眾。
下面是獲取CCTV5節目表並直播指定節目的C#代碼示例:
private bool liveCctv5Program(string programName) { string url = "https://www.cctv5.net/live"; WebClient webClient = new WebClient(); webClient.Encoding = Encoding.UTF8; string html = webClient.DownloadString(url); string pattern = @"]*>([^<]+)"; MatchCollection matches = Regex.Matches(html, pattern, RegexOptions.Singleline); string programId = ""; foreach (Match match in matches) { if (match.Groups[2].Value == programName) { programId = match.Groups[1].Value; break; } } if (programId == "") { return false; } else { string rtmpUrl = "http://live.cntv.cn/program/cctv5/" + programId + ".m3u8"; string ffmpegPath = "ffmpeg.exe"; Process process = new Process(); process.StartInfo.FileName = ffmpegPath; process.StartInfo.Arguments = "-re -i " + rtmpUrl + " -c:v copy -c:a copy -f flv -preset ultrafast rtmp://localhost/live/stream"; process.Start(); return true; } }
四、chat GPT人工智能
C#攝像頭開發可以與人工智能相結合,實現認知服務。我們可以通過C#編寫程序將多個攝像頭輸入交給一個GPT(生成式預訓練轉換)模型,從而判斷這些視角是否重疊,然後選擇最佳視角進行直播。
下面是使用開源的GPT-2模型和Python.net綁定庫實現C#調用Python代碼來選擇最佳視角的示例:
private int[] chooseBestView(int[,] cameras) { dynamic py = new PythonEngine(); py.Import("numpy"); py.Import("transformers"); py.Import("torch"); dynamic model = py.transformers.AutoModelForCausalLM.from_pretrained("gpt2"); dynamic tokenizer = py.transformers.AutoTokenizer.from_pretrained("gpt2"); py_numpy = py.Import("numpy"); pyArray = py_numpy.zeros(new List() { 1, cameras.GetLength(0), cameras.GetLength(1) }); for (int i = 0; i < cameras.GetLength(0); i++) { for (int j = 0; j < cameras.GetLength(1); j++) { pyArray[0, i, j] = cameras[i, j]; } } dynamic inputs = new PythonTuple(Tokenize(tokenizer, "Which camera has the best view? ", "")); inputs += new { input_ids = pyArray }; dynamic outputs = model.generate(inputs.input_ids); int[] result = new int[cameras.GetLength(1)]; for (int i = 0; i < cameras.GetLength(1); i++) { result[i] = pyArray[0, outputs[0][i], i]; } return result; }
五、cctv5在線直播
C#攝像頭開發可以通過RTMP(實時消息傳輸協議)和FLV(Flash視頻)協議,直接從CCTV5等在線直播源中獲取視頻流,並實現實時直播。
下面是使用C#和RTMPSharp庫實現從CCTV5在線直播並獲取視頻流的示例:
private async Task getLiveStreamUrl(string liveUrl) { RtmpClient rtmpClient = new RtmpClient(); rtmpClient.Connect(liveUrl); AmfObject playArgs = new AmfObject(); playArgs.Add("app", "live"); playArgs.Add("name", "stream"); playArgs.Add("bufferLength", 0); playArgs.Add("start", -2); await rtmpClient.InvokeAsync
六、c1駕照能開什麼車
C#攝像頭開發可以應用於車輛識別和智能駕駛領域,對於駕駛者的駕照類型和汽車類型進行智能判斷和提醒。
下面是基於OpenCV(開源計算機視覺庫)和C#的車輛類型和駕照類型智能識別的示例代碼:
private int getVehicleType(Mat image) { CascadeClassifier classifier = new CascadeClassifier("haarcascade_car.xml"); MatOfRect cars = new MatOfRect(); classifier.DetectMultiScale(image, cars); int vehicleType = -1; if (cars.ToArray().Length > 0) { vehicleType = 1; } else { vehicleType = 0; } return vehicleType; } private int getDriverLicenseType(Mat image) { CascadeClassifier classifier = new CascadeClassifier("haarcascade_driverLicense.xml"); MatOfRect driverLicenses = new MatOfRect(); classifier.DetectMultiScale(image, driverLicenses); int driverLicenseType = -1; if (driverLicenses.ToArray().Length > 0) { driverLicenseType = 2; } else { Mat gray = new Mat(); Cv2.CvtColor(image, gray, ColorConversionCodes.BGR2GRAY); List licenseComponents = new List(); Cv2.Split(image, licenseComponents); Mat thresh = new Mat(); Cv2.Threshold(licenseComponents[2], thresh, 0, 255, ThresholdTypes.Otsu); Mat element = Cv2.GetStructuringElement(MorphShapes.Ellipse, new Size(10, 10)); Cv2.Dilate(thresh, thresh, element); Cv2.Erode(thresh, thresh, element); Moments moments = Cv2.Moments(thresh); double hu0 = Cv2.GetHuMoments(moments)[0]; if (hu0 >= 0.28 && hu0 <= 0.30) { driverLicenseType = 1; } else { driverLicenseType = 0; } } return driverLicenseType; }
七、c開頭的火車是什麼車
C#攝像頭開發可以與百度AI產品相結合,實現圖片識別。我們可以通過C#編寫程序來判斷火車前的車站,然後獲取該站台的C開頭的火車種類信息。
下面是基於百度AI圖片識別API的C#代碼示例:
private async Task getTrainType(string imageUrl) { var client = new Baidu.Aip.ImageClassify.ImageClassify(API_KEY, SECRET_KEY); client.Timeout = 60000; var result = await client.ObjectDetectAsync(imageUrl, options); JToken jObject = JObject.Parse(result.ToString()); JArray arr = (JArray)jObject["results"]; string objectName = ""; foreach (JToken token in arr) { objectName += token["name"].ToString() + ","; } string[] objects = objectName.Split(','); foreach (string obj in objects) { if (obj.StartsWith("C")) { return obj; } } return ""; }
八、c反應蛋白高說明什麼
C#攝像頭開發可以應用於醫療檢測領域,例如檢測c反應蛋白含量來判斷炎症程度。
下面是使用C#和EMGU.CV庫在單板計算機上進行血清質量測試和分析的示例代碼:
private void analyzeSerumQuality(Mat image) { Mat hsv = new Mat(image.Size(), DepthType.Cv8U, 3); CvInvoke.CvtColor(image, hsv, ColorConversion.Bgr2Hsv); List channels = new List(); CvInvoke.Split(hsv, channels); Mat blue = channels[0]; Mat red = channels[2]; Mat ratio = new Mat(red.Size(), DepthType.Cv8U, 1); CvInvoke.Divide(blue, red, ratio, 255); double mean = CvInvoke.Mean(ratio)[0]; if (mean > 1.0) { Debug.WriteLine("Serum quality is poor"); } else if (mean > 0.7 && mean <= 1.0) { Debug.WriteLine("Serum quality is moderate"); } else { Debug.WriteLine("Serum quality is good"); } }
原創文章,作者:小藍,如若轉載,請註明出處:https://www.506064.com/zh-hant/n/157277.html