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Paddle/python/paddle/fluid/tests/unittests/test_trilinear_interp_op.py

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# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import print_function
import unittest
import numpy as np
from op_test import OpTest
import paddle.fluid.core as core
import paddle.fluid as fluid
def trilinear_interp_np(input,
out_d,
out_h,
out_w,
out_size=None,
actual_shape=None,
align_corners=True,
align_mode=0,
data_layout='NCDHW'):
"""trilinear interpolation implement in shape [N, C, D, H, W]"""
if data_layout == "NDHWC":
input = np.transpose(input, (0, 4, 1, 2, 3)) # NDHWC => NCDHW
if out_size is not None:
out_d = out_size[0]
out_h = out_size[1]
out_w = out_size[2]
if actual_shape is not None:
out_d = actual_shape[0]
out_h = actual_shape[1]
out_w = actual_shape[2]
batch_size, channel, in_d, in_h, in_w = input.shape
ratio_d = ratio_h = ratio_w = 0.0
if out_d > 1:
if (align_corners):
ratio_d = (in_d - 1.0) / (out_d - 1.0)
else:
ratio_d = 1.0 * in_d / out_d
if out_h > 1:
if (align_corners):
ratio_h = (in_h - 1.0) / (out_h - 1.0)
else:
ratio_h = 1.0 * in_h / out_h
if out_w > 1:
if (align_corners):
ratio_w = (in_w - 1.0) / (out_w - 1.0)
else:
ratio_w = 1.0 * in_w / out_w
out = np.zeros((batch_size, channel, out_d, out_h, out_w))
for i in range(out_d):
if (align_mode == 0 and not align_corners):
d = int(ratio_d * (i + 0.5) - 0.5)
else:
d = int(ratio_d * i)
d = max(0, d)
did = 1 if d < in_d - 1 else 0
if (align_mode == 0 and not align_corners):
idx_src_d = max(ratio_d * (i + 0.5) - 0.5, 0)
d1lambda = idx_src_d - d
else:
d1lambda = ratio_d * i - d
d2lambda = 1.0 - d1lambda
for j in range(out_h):
if (align_mode == 0 and not align_corners):
h = int(ratio_h * (j + 0.5) - 0.5)
else:
h = int(ratio_h * j)
h = max(0, h)
hid = 1 if h < in_h - 1 else 0
if (align_mode == 0 and not align_corners):
idx_src_h = max(ratio_h * (j + 0.5) - 0.5, 0)
h1lambda = idx_src_h - h
else:
h1lambda = ratio_h * j - h
h2lambda = 1.0 - h1lambda
for k in range(out_w):
if (align_mode == 0 and not align_corners):
w = int(ratio_w * (k + 0.5) - 0.5)
else:
w = int(ratio_w * k)
w = max(0, w)
wid = 1 if w < in_w - 1 else 0
if (align_mode == 0 and not align_corners):
idx_src_w = max(ratio_w * (k + 0.5) - 0.5, 0)
w1lambda = idx_src_w - w
else:
w1lambda = ratio_w * k - w
w2lambda = 1.0 - w1lambda
out[:, :, i, j, k] = \
d2lambda * \
(h2lambda * (w2lambda * input[:, :, d, h, w] + \
w1lambda * input[:, :, d, h, w+wid]) + \
h1lambda * (w2lambda * input[:, :, d, h+hid, w] + \
w1lambda * input[:, :, d, h+hid, w+wid])) + \
d1lambda * \
(h2lambda * (w2lambda * input[:, :, d+did, h, w] + \
w1lambda * input[:, :, d+did, h, w+wid]) + \
h1lambda * (w2lambda * input[:, :, d+did, h+hid, w] + \
w1lambda * input[:, :, d+did, h+hid, w+wid]))
if data_layout == "NDHWC":
out = np.transpose(out, (0, 2, 3, 4, 1)) # NCDHW => NDHWC
return out.astype(input.dtype)
class TestTrilinearInterpOp(OpTest):
def setUp(self):
self.out_size = None
self.actual_shape = None
self.data_layout = 'NCDHW'
self.init_test_case()
self.op_type = "trilinear_interp"
input_np = np.random.random(self.input_shape).astype("float32")
if self.data_layout == "NCDHW":
in_d = self.input_shape[2]
in_h = self.input_shape[3]
in_w = self.input_shape[4]
else:
in_d = self.input_shape[1]
in_h = self.input_shape[2]
in_w = self.input_shape[3]
if self.scale > 0:
out_d = int(in_d * self.scale)
out_h = int(in_h * self.scale)
out_w = int(in_w * self.scale)
else:
out_d = self.out_d
out_h = self.out_h
out_w = self.out_w
output_np = trilinear_interp_np(
input_np, out_d, out_h, out_w, self.out_size, self.actual_shape,
self.align_corners, self.align_mode, self.data_layout)
self.inputs = {'X': input_np}
if self.out_size is not None:
self.inputs['OutSize'] = self.out_size
if self.actual_shape is not None:
self.inputs['OutSize'] = self.actual_shape
# c++ end treat NCDHW the same way as NCHW
if self.data_layout == 'NCDHW':
data_layout = 'NCHW'
else:
data_layout = 'NHWC'
self.attrs = {
'out_d': self.out_d,
'out_h': self.out_h,
'out_w': self.out_w,
'scale': self.scale,
'interp_method': self.interp_method,
'align_corners': self.align_corners,
'align_mode': self.align_mode,
'data_layout': data_layout
}
self.outputs = {'Out': output_np}
def test_check_output(self):
self.check_output()
def test_check_grad(self):
self.check_grad(['X'], 'Out', in_place=True)
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 4, 4, 4]
self.out_d = 2
self.out_h = 2
self.out_w = 2
self.scale = 0.
self.out_size = np.array([3, 3, 3]).astype("int32")
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase1(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 1, 7, 8, 9]
self.out_d = 1
self.out_h = 1
self.out_w = 1
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase2(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 9, 6, 8]
self.out_d = 12
self.out_h = 12
self.out_w = 12
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase3(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [3, 2, 16, 8, 4]
self.out_d = 32
self.out_h = 16
self.out_w = 8
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase4(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [4, 1, 7, 8, 9]
self.out_d = 1
self.out_h = 1
self.out_w = 1
self.scale = 0.
self.out_size = np.array([2, 2, 2]).astype("int32")
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase5(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [3, 3, 9, 6, 8]
self.out_d = 12
self.out_h = 12
self.out_w = 12
self.scale = 0.
self.out_size = np.array([11, 11, 11]).astype("int32")
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase6(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [1, 1, 16, 8, 4]
self.out_d = 8
self.out_h = 32
self.out_w = 16
self.scale = 0.
self.out_size = np.array([17, 9, 5]).astype("int32")
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpSame(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [1, 1, 16, 8, 4]
self.out_d = 16
self.out_h = 8
self.out_w = 4
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpSameHW(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [1, 1, 16, 8, 4]
self.out_d = 8
self.out_h = 8
self.out_w = 4
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpActualShape(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [3, 2, 16, 8, 4]
self.out_d = 64
self.out_h = 32
self.out_w = 16
self.scale = 0.
self.out_size = np.array([33, 19, 7]).astype("int32")
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpDatalayout(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 4, 4, 4, 3]
self.out_d = 2
self.out_h = 2
self.out_w = 2
self.scale = 0.
self.out_size = np.array([3, 3, 3]).astype("int32")
self.align_corners = True
self.align_mode = 1
self.data_layout = "NDHWC"
class TestTrilinearInterpOpUint8(OpTest):
def setUp(self):
self.out_size = None
self.actual_shape = None
self.init_test_case()
self.op_type = "trilinear_interp"
input_np = np.random.randint(
low=0, high=256, size=self.input_shape).astype("uint8")
if self.scale > 0:
out_d = int(self.input_shape[2] * self.scale)
out_h = int(self.input_shape[3] * self.scale)
out_w = int(self.input_shape[4] * self.scale)
else:
out_d = self.out_d
out_h = self.out_h
out_w = self.out_w
output_np = trilinear_interp_np(input_np, out_d, out_h, out_w,
self.out_size, self.actual_shape,
self.align_corners, self.align_mode)
self.inputs = {'X': input_np}
if self.out_size is not None:
self.inputs['OutSize'] = self.out_size
self.attrs = {
'out_d': self.out_d,
'out_h': self.out_h,
'out_w': self.out_w,
'scale': self.scale,
'interp_method': self.interp_method,
'align_corners': self.align_corners,
'align_mode': self.align_mode
}
self.outputs = {'Out': output_np}
def test_check_output(self):
self.check_output_with_place(place=core.CPUPlace(), atol=1)
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [1, 3, 9, 6, 8]
self.out_d = 13
self.out_h = 10
self.out_w = 9
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase1Uint8(TestTrilinearInterpOpUint8):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 16, 8, 4]
self.out_d = 13
self.out_h = 7
self.out_w = 2
self.scale = 0.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpCase2Uint8(TestTrilinearInterpOpUint8):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [4, 1, 7, 8, 9]
self.out_d = 3
self.out_h = 5
self.out_w = 13
self.scale = 0.
self.out_size = np.array([6, 15, 21]).astype("int32")
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpOtherMethod1(TestTrilinearInterpOp):
def set_align_mode(self):
self.align_corners = False
self.align_mode = 1
class TestTrilinearInterpWithMethod2(TestTrilinearInterpOp):
def set_align_mode(self):
self.align_corners = False
self.align_mode = 0
class TestTrilinearInterpWithMethod3(TestTrilinearInterpOp):
def set_align_mode(self):
self.align_corners = True
self.align_mode = 0
class TestTrilinearInterpScale1(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 5, 7, 9]
self.out_d = 82
self.out_h = 60
self.out_w = 25
self.scale = 2.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpScale2(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 5, 7, 9]
self.out_d = 82
self.out_h = 60
self.out_w = 25
self.scale = 1.
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpScale3(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 5, 7, 9]
self.out_d = 82
self.out_h = 60
self.out_w = 25
self.scale = 1.5
self.align_corners = True
self.align_mode = 1
class TestTrilinearInterpZero(TestTrilinearInterpOp):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 5, 7, 11]
self.out_d = 82
self.out_h = 60
self.out_w = 25
self.scale = 0.2
self.align_corners = False
self.align_mode = 0
class TestTrilinearInterpOp_attr_tensor(OpTest):
def setUp(self):
self.out_size = None
self.actual_shape = None
self.init_test_case()
self.op_type = "trilinear_interp"
self.shape_by_1Dtensor = False
self.scale_by_1Dtensor = False
self.attrs = {
'interp_method': self.interp_method,
'align_corners': self.align_corners,
'align_mode': self.align_mode
}
input_np = np.random.random(self.input_shape).astype("float32")
self.inputs = {'X': input_np}
if self.scale_by_1Dtensor:
self.inputs['Scale'] = np.array([self.scale]).astype("float32")
elif self.scale > 0:
out_d = int(self.input_shape[2] * self.scale)
out_h = int(self.input_shape[3] * self.scale)
out_w = int(self.input_shape[4] * self.scale)
self.attrs['scale'] = self.scale
else:
out_d = self.out_d
out_h = self.out_h
out_w = self.out_w
if self.shape_by_1Dtensor:
self.inputs['OutSize'] = self.out_size
elif self.out_size is not None:
size_tensor = []
for index, ele in enumerate(self.out_size):
size_tensor.append(("x" + str(index), np.ones(
(1)).astype('int32') * ele))
self.inputs['SizeTensor'] = size_tensor
self.attrs['out_d'] = self.out_d
self.attrs['out_h'] = self.out_h
self.attrs['out_w'] = self.out_w
output_np = trilinear_interp_np(input_np, out_d, out_h, out_w,
self.out_size, self.actual_shape,
self.align_corners, self.align_mode)
self.outputs = {'Out': output_np}
def test_check_output(self):
self.check_output()
def test_check_grad(self):
self.check_grad(['X'], 'Out', in_place=True)
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 4, 4, 4]
self.out_d = 2
self.out_h = 3
self.out_w = 3
self.scale = 0.
self.out_size = [2, 3, 3]
self.align_corners = True
self.align_mode = 1
# out_size is a 1-D tensor
class TestTrilinearInterp_attr_tensor_Case1(TestTrilinearInterpOp_attr_tensor):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [3, 2, 9, 6, 8]
self.out_d = 32
self.out_h = 16
self.out_w = 8
self.scale = 0.3
self.out_size = [12, 4, 4]
self.align_corners = True
self.align_mode = 1
# scale is a 1-D tensor
class TestTrilinearInterp_attr_tensor_Case2(TestTrilinearInterpOp_attr_tensor):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 8, 8, 4]
self.out_d = 16
self.out_h = 12
self.out_w = 4
self.scale = 0.
self.out_size = [16, 4, 10]
self.align_corners = True
self.align_mode = 1
self.shape_by_1Dtensor = True
# scale is a 1-D tensor
class TestTrilinearInterp_attr_tensor_Case3(TestTrilinearInterpOp_attr_tensor):
def init_test_case(self):
self.interp_method = 'trilinear'
self.input_shape = [2, 3, 8, 8, 4]
self.out_d = 16
self.out_h = 16
self.out_w = 8
self.scale = 2.0
self.out_size = None
self.align_corners = True
self.align_mode = 1
self.scale_by_1Dtensor = True
class TestTrilinearInterpAPI(OpTest):
def test_case(self):
x = fluid.layers.data(name="x", shape=[3, 6, 9, 4], dtype="float32")
y = fluid.layers.data(name="y", shape=[6, 9, 4, 3], dtype="float32")
dim = fluid.layers.data(name="dim", shape=[1], dtype="int32")
shape_tensor = fluid.layers.data(
name="shape_tensor",
shape=[3],
dtype="int32",
append_batch_size=False)
actual_size = fluid.layers.data(
name="actual_size",
shape=[3],
dtype="int32",
append_batch_size=False)
scale_tensor = fluid.layers.data(
name="scale_tensor",
shape=[1],
dtype="float32",
append_batch_size=False)
out1 = fluid.layers.resize_trilinear(
y, out_shape=[12, 18, 8], data_format='NDHWC')
out2 = fluid.layers.resize_trilinear(x, out_shape=[12, dim, 8])
out3 = fluid.layers.resize_trilinear(x, out_shape=shape_tensor)
out4 = fluid.layers.resize_trilinear(
x, out_shape=[4, 4, 8], actual_shape=actual_size)
out5 = fluid.layers.resize_trilinear(x, scale=scale_tensor)
x_data = np.random.random((1, 3, 6, 9, 4)).astype("float32")
dim_data = np.array([18]).astype("int32")
shape_data = np.array([12, 18, 8]).astype("int32")
actual_size_data = np.array([12, 18, 8]).astype("int32")
scale_data = np.array([2.0]).astype("float32")
place = core.CPUPlace()
exe = fluid.Executor(place)
results = exe.run(fluid.default_main_program(),
feed={
"x": x_data,
"y": np.transpose(x_data, (0, 2, 3, 4, 1)),
"dim": dim_data,
"shape_tensor": shape_data,
"actual_size": actual_size_data,
"scale_tensor": scale_data
},
fetch_list=[out1, out2, out3, out4, out5],
return_numpy=True)
expect_res = trilinear_interp_np(
x_data, out_d=12, out_h=18, out_w=8, align_mode=1)
self.assertTrue(
np.allclose(results[0], np.transpose(expect_res, (0, 2, 3, 4, 1))))
for i in range(len(results) - 1):
self.assertTrue(np.allclose(results[i + 1], expect_res))
def test_exception(self):
input = fluid.layers.data(
name="input", shape=[3, 6, 9, 4], dtype="float32")
try:
# for 5-D input, data_format only can be NCDHW or NDHWC
out = fluid.layers.resize_trilinear(
input, out_shape=[4, 8, 4], data_format='NHWC')
except:
pass
if __name__ == "__main__":
unittest.main()