# Copyright (c) 2018 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 paddle import math import numpy as np import unittest from op_test import OpTest def calc_psroi_pool(x, rois, rois_num_per_img, output_channels, spatial_scale, pooled_height, pooled_width): """ Psroi_pool implemented by Numpy. x: 4-D as (N, C, H, W), rois: 2-D as [[x1, y1, x2, y2], ...], rois_num_per_img: 1-D as [nums_of_batch_0, nums_of_batch_1, ...] """ output_shape = (len(rois), output_channels, pooled_height, pooled_width) out_data = np.zeros(output_shape) batch_id = 0 rois_num_id = 0 rois_num_left = rois_num_per_img[rois_num_id] for i in range(len(rois)): roi = rois[i] roi_batch_id = batch_id rois_num_left -= 1 if rois_num_left == 0: rois_num_id += 1 if rois_num_id < len(rois_num_per_img): rois_num_left = rois_num_per_img[rois_num_id] batch_id += 1 roi_start_w = round(roi[0]) * spatial_scale roi_start_h = round(roi[1]) * spatial_scale roi_end_w = (round(roi[2]) + 1.) * spatial_scale roi_end_h = (round(roi[3]) + 1.) * spatial_scale roi_height = max(roi_end_h - roi_start_h, 0.1) roi_width = max(roi_end_w - roi_start_w, 0.1) bin_size_h = roi_height / float(pooled_height) bin_size_w = roi_width / float(pooled_width) x_i = x[roi_batch_id] for c in range(output_channels): for ph in range(pooled_height): for pw in range(pooled_width): hstart = int( math.floor(float(ph) * bin_size_h + roi_start_h)) wstart = int( math.floor(float(pw) * bin_size_w + roi_start_w)) hend = int( math.ceil(float(ph + 1) * bin_size_h + roi_start_h)) wend = int( math.ceil(float(pw + 1) * bin_size_w + roi_start_w)) hstart = min(max(hstart, 0), x.shape[2]) hend = min(max(hend, 0), x.shape[2]) wstart = min(max(wstart, 0), x.shape[3]) wend = min(max(wend, 0), x.shape[3]) c_in = (c * pooled_height + ph) * pooled_width + pw is_empty = (hend <= hstart) or (wend <= wstart) out_sum = 0. for ih in range(hstart, hend): for iw in range(wstart, wend): out_sum += x_i[c_in, ih, iw] bin_area = (hend - hstart) * (wend - wstart) out_data[i, c, ph, pw] = 0. if is_empty else ( out_sum / float(bin_area)) return out_data class TestPSROIPoolOp(OpTest): def set_data(self): paddle.enable_static() self.init_test_case() self.make_rois() self.outs = calc_psroi_pool(self.x, self.boxes, self.boxes_num, self.output_channels, self.spatial_scale, self.pooled_height, self.pooled_width).astype('float64') self.inputs = { 'X': self.x, 'ROIs': (self.rois_with_batch_id[:, 1:5], self.rois_lod) } self.attrs = { 'output_channels': self.output_channels, 'spatial_scale': self.spatial_scale, 'pooled_height': self.pooled_height, 'pooled_width': self.pooled_width } self.outputs = {'Out': self.outs} def init_test_case(self): self.batch_size = 3 self.channels = 3 * 2 * 2 self.height = 6 self.width = 4 self.x_dim = [self.batch_size, self.channels, self.height, self.width] self.spatial_scale = 1.0 / 4.0 self.output_channels = 3 self.pooled_height = 2 self.pooled_width = 2 self.x = np.random.random(self.x_dim).astype('float64') def make_rois(self): rois = [] self.rois_lod = [[]] for bno in range(self.batch_size): self.rois_lod[0].append(bno + 1) for i in range(bno + 1): x1 = np.random.random_integers( 0, self.width // self.spatial_scale - self.pooled_width) y1 = np.random.random_integers( 0, self.height // self.spatial_scale - self.pooled_height) x2 = np.random.random_integers(x1 + self.pooled_width, self.width // self.spatial_scale) y2 = np.random.random_integers( y1 + self.pooled_height, self.height // self.spatial_scale) roi = [bno, x1, y1, x2, y2] rois.append(roi) self.rois_num = len(rois) self.rois_with_batch_id = np.array(rois).astype('float64') self.boxes = self.rois_with_batch_id[:, 1:] self.boxes_num = np.array( [bno + 1 for bno in range(self.batch_size)]).astype('int32') def setUp(self): self.op_type = 'psroi_pool' self.set_data() def test_check_output(self): self.check_output() def test_check_grad(self): self.check_grad(['X'], 'Out') class TestPSROIPoolDynamicFunctionAPI(unittest.TestCase): def setUp(self): self.x = np.random.random([2, 490, 28, 28]).astype(np.float32) self.boxes = np.array( [[1, 5, 8, 10], [4, 2, 6, 7], [12, 12, 19, 21]]).astype(np.float32) self.boxes_num = np.array([1, 2]).astype(np.int32) def test_output_size(self): def test_output_size_is_int(): output_size = 7 out = paddle.vision.ops.psroi_pool( paddle.to_tensor(self.x), paddle.to_tensor(self.boxes), paddle.to_tensor(self.boxes_num), output_size).numpy() expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 10, 1.0, 7, 7) self.assertTrue(np.allclose(out, expect_out)) def test_output_size_is_tuple(): output_size = (7, 7) out = paddle.vision.ops.psroi_pool( paddle.to_tensor(self.x), paddle.to_tensor(self.boxes), paddle.to_tensor(self.boxes_num), output_size).numpy() expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 10, 1.0, 7, 7) self.assertTrue(np.allclose(out, expect_out)) def test_dytype_is_float64(): output_size = (7, 7) out = paddle.vision.ops.psroi_pool( paddle.to_tensor(self.x, 'float64'), paddle.to_tensor(self.boxes, 'float64'), paddle.to_tensor(self.boxes_num, 'int32'), output_size).numpy() expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 10, 1.0, 7, 7) self.assertTrue(np.allclose(out, expect_out)) places = ['cpu'] if paddle.fluid.core.is_compiled_with_cuda(): places.append('gpu') for place in places: paddle.set_device(place) test_output_size_is_int() test_output_size_is_tuple() test_dytype_is_float64() class TestPSROIPoolDynamicClassAPI(unittest.TestCase): def setUp(self): self.x = np.random.random([2, 128, 32, 32]).astype(np.float32) self.boxes = np.array([[3, 5, 6, 13], [7, 4, 22, 18], [4, 5, 7, 10], [5, 3, 25, 21]]).astype(np.float32) self.boxes_num = np.array([2, 2]).astype(np.int32) def test_output_size(self): def test_output_size_is_int(): psroi_module = paddle.vision.ops.PSRoIPool(8, 1.1) out = psroi_module( paddle.to_tensor(self.x), paddle.to_tensor(self.boxes), paddle.to_tensor(self.boxes_num)).numpy() expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 2, 1.1, 8, 8) self.assertTrue(np.allclose(out, expect_out)) def test_output_size_is_tuple(): psroi_pool_module = paddle.vision.ops.PSRoIPool(8, 1.1) out = psroi_pool_module( paddle.to_tensor(self.x), paddle.to_tensor(self.boxes), paddle.to_tensor(self.boxes_num)).numpy() expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 2, 1.1, 8, 8) self.assertTrue(np.allclose(out, expect_out)) def test_dytype_is_float64(): psroi_pool_module = paddle.vision.ops.PSRoIPool(8, 1.1) out = psroi_pool_module( paddle.to_tensor(self.x, 'float64'), paddle.to_tensor(self.boxes, 'float64'), paddle.to_tensor(self.boxes_num, 'int32')).numpy() expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 2, 1.1, 8, 8) self.assertTrue(np.allclose(out, expect_out)) paddle.disable_static() places = ['cpu'] if paddle.fluid.core.is_compiled_with_cuda(): places.append('gpu') for place in places: paddle.set_device(place) test_output_size_is_int() test_output_size_is_tuple() test_dytype_is_float64() class TestPSROIPoolBoxesNumError(unittest.TestCase): def setUp(self): paddle.disable_static() self.x = paddle.uniform([2, 490, 28, 28], dtype='float32') self.boxes = paddle.to_tensor( [[1, 5, 8, 10], [4, 2, 6, 7], [12, 12, 19, 21]], 'float32') def test_errors(self): def test_boxes_num_nums_error(): boxes_num = paddle.to_tensor([1, 5], 'int32') out = paddle.vision.ops.psroi_pool( self.x, self.boxes, boxes_num, output_size=7) self.assertRaises(ValueError, test_boxes_num_nums_error) def test_boxes_num_length_error(): boxes_num = paddle.to_tensor([1, 1, 1], 'int32') out = paddle.vision.ops.psroi_pool( self.x, self.boxes, boxes_num, output_size=7) self.assertRaises(ValueError, test_boxes_num_length_error) class TestPSROIPoolChannelError(unittest.TestCase): def setUp(self): paddle.disable_static() self.x = paddle.uniform([2, 490, 28, 28], dtype='float32') self.boxes = paddle.to_tensor( [[1, 5, 8, 10], [4, 2, 6, 7], [12, 12, 19, 21]], 'float32') self.output_size = 4 def test_errors(self): def test_channel_error(): boxes_num = paddle.to_tensor([2, 1], 'int32') out = paddle.vision.ops.psroi_pool(self.x, self.boxes, boxes_num, self.output_size) self.assertRaises(ValueError, test_channel_error) class TestPSROIPoolStaticAPI(unittest.TestCase): def setUp(self): paddle.enable_static() self.x_placeholder = paddle.static.data( name='x', shape=[2, 490, 28, 28]) self.x = np.random.random([2, 490, 28, 28]).astype(np.float32) self.boxes_placeholder = paddle.static.data( name='boxes', shape=[3, 4], lod_level=1) self.boxes = np.array( [[1, 5, 8, 10], [4, 2, 6, 7], [12, 12, 19, 21]]).astype(np.float32) self.boxes_num = np.array([1, 2]).astype(np.int32) def test_function_in_static(self): output_size = 7 out = paddle.vision.ops.psroi_pool(self.x_placeholder, self.boxes_placeholder, self.boxes_num, output_size) expect_out = calc_psroi_pool(self.x, self.boxes, self.boxes_num, 10, 1.0, 7, 7) places = [paddle.CPUPlace()] if paddle.fluid.core.is_compiled_with_cuda(): places.append(paddle.CUDAPlace(0)) for place in places: exe = paddle.static.Executor(place) boxes_lod_data = paddle.fluid.create_lod_tensor(self.boxes, [[1, 2]], place) out_res = exe.run(paddle.static.default_main_program(), feed={'x': self.x, 'boxes': boxes_lod_data}, fetch_list=[out.name]) self.assertTrue(np.allclose(out_res, expect_out)) if __name__ == '__main__': unittest.main()