ref: d55682c2aadbca664727fde886d42d39f7cbb5cd
dir: libvpx/tools/3D-Reconstruction/MotionEST/GroundTruth.py
## Copyright (c) 2020 The WebM project authors. All Rights Reserved.
##
## Use of this source code is governed by a BSD-style license
## that can be found in the LICENSE file in the root of the source
## tree. An additional intellectual property rights grant can be found
## in the file PATENTS. All contributing project authors may
## be found in the AUTHORS file in the root of the source tree.
##
#coding : utf - 8
import numpy as np
import numpy.linalg as LA
from MotionEST import MotionEST
"""Ground Truth:
Load in ground truth motion field and mask
"""
class GroundTruth(MotionEST):
"""constructor:
cur_f:current
frame ref_f:reference
frame blk_sz:block size
gt_path:ground truth motion field file path
"""
def __init__(self, cur_f, ref_f, blk_sz, gt_path, mf=None, mask=None):
self.name = 'ground truth'
super(GroundTruth, self).__init__(cur_f, ref_f, blk_sz)
self.mask = np.zeros((self.num_row, self.num_col), dtype=np.bool)
if gt_path:
with open(gt_path) as gt_file:
lines = gt_file.readlines()
for i in xrange(len(lines)):
info = lines[i].split(';')
for j in xrange(len(info)):
x, y = info[j].split(',')
#-, - stands for nothing
if x == '-' or y == '-':
self.mask[i, -j - 1] = True
continue
#the order of original file is flipped on the x axis
self.mf[i, -j - 1] = np.array([float(y), -float(x)], dtype=np.int)
else:
self.mf = mf
self.mask = mask