LiuDongdong

爱好由来落笔难,一诗千改心始安。

BlinkDetection

1. 眨眼检测 使用dlib库 眨眼检测 # import the necessary packages from scipy.spatial import distance as dist from imutils.video import FileVideoStream from imutils.video import VideoStream from imutils import face_utils import argparse import imutils import time import dlib import cv2 import os def eye_aspect_ratio(eye): # compute the euclidean distances between the two sets of # vertical eye landmarks (x, y)-coordinates A

Panda Tutorial

1. 文件读写 pd.read_csv(filepath_or_buffer, sep=’,’, delimiter=None, header=’infer’, names=None, index_col=None, usecols=None, squeeze=False, converters=None, true_values=None, false_values=None, skiprows=None, nrows=None, na_values=None) filepath_or_buffer:文件名、文件具体或相对

DTW&Sequence Analysis

level: SIGKDD ACM author:Thanawin Rakthanmanon date: August 12–16, 2012 keyword: Sequence data matching Paper: DTW Research Objective Application Area: time series motif discovery [25] [26], anomaly detection [35] [31], time series summarization, shapelet extraction [39], clustering, and classification [6], gestures/brainwaves/musical patterns/anomalous heartbeats in real-time Purpose: fast sequential search instead of approximately search Proble Statement Time Series Subsequences must be Normalized ,or tiny changes

Unmanned Intelligent Retail

现代零售业历经四次商业模式变革,每一次都催生新的零售业态(包括百货店、连锁模式、超级市场和网络购物等),其背后的本质是对零售三要素(人、货、

CameraOpencv

import cv2 from PyQt5.QtCore import QTimer class Camera(object): def __init__(self,timesInterval): self.device = 0 self.timesInterval =timesInterval #ms self.cap = cv2.VideoCapture() self.timer = QTimer() #A single-shot timer fires only once, non-single-shot timers fire every interval milliseconds. def stop(self): self.timer.stop() self.cap.release() return True def pause(self): self.timer.stop() def begin(self): self.timer.start(self.timesInterval) def start(self, device): if self.cap.isOpened(): self.cap.release() self.timer.start(self.timesInterval) self.cap.open(device) self.device = device return True def restart(self): self.start(self.device) @property def is_pause(self): return self.cap.isOpened() and not self.timer.isActive()
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