241 lines
9.0 KiB
Python
241 lines
9.0 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Created on Mon Mar 4 18:28:47 2024
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@author: ym
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"""
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import cv2
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import numpy as np
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from scipy.spatial.distance import cdist
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from sklearn.decomposition import PCA
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from .dotracks import MoveState, Track
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from pathlib import Path
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curpath = Path(__file__).resolve().parents[0]
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curpath = Path(curpath)
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parpath = curpath.parent
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class backTrack(Track):
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# boxes: [x1, y1, x2, y2, track_id, score, cls, frame_index, box_index]
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# 0, 1, 2, 3, 4, 5, 6, 7, 8
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def __init__(self, boxes, features, imgshape=(1024, 1280)):
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super().__init__(boxes, features, imgshape)
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'''该函数依赖项: self.cornpoints
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MarginState: list, seven elements, 表示轨迹中boxes出现在图像的
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[左上，右上，左中，右中，左下，右下底部]
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'''
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self.isCornpoint, self.MarginState = self.isimgborder()
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'''该函数依赖项: self.isCornpoint，不能在父类中初始化'''
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self.trajfeature()
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'''静止点帧索引'''
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# self.static_index = self.compute_static_fids()
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'''运动点帧索引(运动帧两端的静止帧索引)'''
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# self.moving_index = self.compute_dynamic_fids()
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self.static_index, self.moving_index = self.compute_static_dynamic_fids()
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'''该函数依赖项: self.cornpoints，定义 4 个商品位置变量：
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self.Cent_isIncart, self.LB_isIncart, self.RB_isIncart
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self.posState = self.Cent_isIncart+self.LB_isIncart+self.RB_isIncart'''
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self.PositionState(camerType="back")
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'''self.feature_ious = (incart_iou, outcart_iou, cartboarder_iou, maxbox_iou, minbox_iou)
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self.incartrates = incartrates'''
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self.compute_ious_feat()
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# self.PCA()
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def isimgborder(self, BoundPixel=10, BoundThresh=0.3):
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x1, y1 = self.cornpoints[:,2], self.cornpoints[:,3],
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x2, y2 = self.cornpoints[:,8], self.cornpoints[:,9]
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condt1 = sum(abs(x1)<BoundPixel) / self.frnum > BoundThresh
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condt2 = sum(abs(y1)<BoundPixel) / self.frnum > BoundThresh
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condt3 = sum(abs(x2-self.imgshape[0])<BoundPixel) / self.frnum > BoundThresh
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condt4 = sum(abs(y2-self.imgshape[1])<BoundPixel) / self.frnum > BoundThresh
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condt = condt1 or condt2 or condt3 or condt4
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isCornpoint = False
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if condt:
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isCornpoint = True
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condtA = condt1 and condt2
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condtB = condt3 and condt2
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condtC = condt1 and not condt2 and not condt4
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condtD = condt3 and not condt2 and not condt4
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condtE = condt1 and condt4
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condtF = condt3 and condt4
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condtG = condt4 and not condt1 and not condt3
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MarginState = [condtA, condtB, condtC, condtD, condtE, condtF, condtG]
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return isCornpoint, MarginState
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def PCA(self):
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self.pca = PCA()
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X = self.cornpoints[:, 0:2]
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self.pca.fit(X)
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def compute_ious_feat(self):
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'''输出：
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self.feature_ious = (incart_iou, outcart_iou, cartboarder_iou, maxbox_iou, minbox_iou)
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self.incartrates = incartrates，
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其中：
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boxes流：track中所有boxes形成的轨迹图，可分为三部分：incart, outcart, cartboarder
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incart_iou, outcart_iou, cartboarder_iou：各部分和 boxes流的 iou。
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incart_iou = 0，track在购物车外，
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outcart_iou = 0，track在购物车内，也可能是通过左下角、右下角置入购物车，
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maxbox_iou, minbox_iou：track中最大、最小 box 和boxes流的iou，二者差值越小，越接近 1，表明track的运动型越小。
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incartrates: 各box和incart的iou时序，由小变大，反应的是置入过程，由大变小，反应的是取出过程
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'''
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incart = cv2.imread(str(parpath/"shopcart/cart_tempt/incart.png"), cv2.IMREAD_GRAYSCALE)
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outcart = cv2.imread(str(parpath/"shopcart/cart_tempt/outcart.png"), cv2.IMREAD_GRAYSCALE)
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cartboarder = cv2.imread(str(parpath/"shopcart/cart_tempt/cartboarder.png"), cv2.IMREAD_GRAYSCALE)
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incartrates = []
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temp = np.zeros(incart.shape, np.uint8)
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maxarea, minarea = 0, self.imgshape[0]*self.imgshape[1]
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for i in range(self.frnum):
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# x, y, w, h = self.boxes[i, 0:4]
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x = (self.boxes[i, 2] + self.boxes[i, 0]) / 2
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w = (self.boxes[i, 2] - self.boxes[i, 0]) / 2
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y = (self.boxes[i, 3] + self.boxes[i, 1]) / 2
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h = (self.boxes[i, 3] - self.boxes[i, 1]) / 2
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if w*h > maxarea: maxarea = w*h
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if w*h < minarea: minarea = w*h
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cv2.rectangle(temp, (int(x-w/2), int(y-h/2)), (int(x+w/2), int(y+h/2)), 255, cv2.FILLED)
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temp1 = np.zeros(incart.shape, np.uint8)
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cv2.rectangle(temp1, (int(x-w/2), int(y-h/2)), (int(x+w/2), int(y+h/2)), 255, cv2.FILLED)
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temp2 = cv2.bitwise_and(incart, temp1)
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inrate = cv2.countNonZero(temp1)/(w*h)
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incartrates.append(inrate)
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isincart = cv2.bitwise_and(incart, temp)
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isoutcart = cv2.bitwise_and(outcart, temp)
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iscartboarder = cv2.bitwise_and(cartboarder, temp)
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num_temp = cv2.countNonZero(temp)
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num_incart = cv2.countNonZero(isincart)
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num_outcart = cv2.countNonZero(isoutcart)
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num_cartboarder = cv2.countNonZero(iscartboarder)
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incart_iou = num_incart/num_temp
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outcart_iou = num_outcart/num_temp
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cartboarder_iou = num_cartboarder/num_temp
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maxbox_iou = maxarea/num_temp
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minbox_iou = minarea/num_temp
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self.feature_ious = (incart_iou, outcart_iou, cartboarder_iou, maxbox_iou, minbox_iou)
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self.incartrates = incartrates
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def compute_static_dynamic_fids(self):
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if self.MarginState[0] or self.MarginState[2]:
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idx1 = 4
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elif self.MarginState[1] or self.MarginState[3]:
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idx1 = 3
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elif self.MarginState[4]:
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idx1 = 2
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elif self.MarginState[5]:
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idx1 = 1
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elif self.MarginState[6]:
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if self.trajlens[1] < self.trajlens[2]:
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idx1 = 1
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else:
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idx1 = 2
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else:
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idx1 = self.trajlens.index(min(self.trajlens))
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# idx1 = self.trajlens.index(min(self.trajlens))
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trajmin = self.trajectory[idx1]
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static, dynamic = self.pt_state_fids(trajmin)
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static = np.array(static)
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dynamic = np.array(dynamic)
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if static.size:
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indx = np.argsort(static[:, 0])
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static = static[indx]
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if dynamic.size:
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indx = np.argsort(dynamic[:, 0])
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dynamic = dynamic[indx]
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return static, dynamic
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def is_static(self):
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'''静态情况 1: 目标关键点最小相对运动轨迹 < 0.2, 指标值偏大
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TrajFeat = [trajlen_min, trajlen_max,
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trajdist_min, trajdist_max,
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trajlen_rate, trajdist_rate]
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'''
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# print(f"TrackID: {self.tid}")
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boxes = self.boxes
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'''静态情况 1: '''
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condt1 = self.TrajFeat[5] < 0.2 or self.TrajFeat[3] < 120
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'''静态情况 2: 目标初始状态为静止，适当放宽关键点最小相对运动轨迹 < 0.5'''
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condt2 = self.static_index.size > 0 \
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and self.static_index[0, 0] <= 2 \
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and self.static_index[0, 1] >= 5 \
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and self.TrajFeat[5] < 0.5 \
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and self.TrajFeat[1] < 240 \
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and self.isWholeInCart
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# and self.posState >= 2
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# and self.TrajFeat[0] < 240 \
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'''静态情况 3: 目标初始状态和最终状态均为静止'''
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condt3 = self.static_index.shape[0] >= 2 \
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and self.static_index[0, 0] <= 2 \
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and self.static_index[0, 1] >= 5 \
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and self.static_index[-1, 1] >= self.frnum-3 \
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and self.TrajFeat[1] < 240 \
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and self.isWholeInCart
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# and self.posState >= 2
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# and self.TrajFeat[0] < 240 \
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condt4 = self.static_index.shape[0] >= 2 \
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and self.static_index[0, 0] <= 2 \
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and self.static_index[0, 1] >= 6 \
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and self.static_index[-1, 0] <= self.frnum-5 \
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and self.static_index[-1, 1] >= self.frnum-2
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condt = condt1 or condt2 or condt3 or condt4
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return condt
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def is_OutTrack(self):
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if self.posState <= 1:
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isout = True
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else:
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isout = False
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return isout
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def compute_distance(self):
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pass
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def move_start_fid(self):
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pass
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def move_end_fid(self):
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pass |