shithub: libvpx

Download patch

ref: 8c5896e8dd32978383550e9e84f68b73045bb3cd
parent: 05b0b204a771cbfae1074ef72f6accde27a6051e
parent: e4096639ff0e034cb59c13760727b2e6d4fbe831
author: Dan Zhu <[email protected]>
date: Tue Jul 23 14:16:11 EDT 2019

Merge "Add Ground Truth Estimator"

--- /dev/null
+++ b/tools/3D-Reconstruction/MotionEST/GroundTruth.py
@@ -1,0 +1,36 @@
+#!/usr/bin/env python
+# 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):
+    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)
+    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)