| ## 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 |
