本文整理汇总了Python中core.config.cfg.POOLING_SIZE属性的典型用法代码示例。如果您正苦于以下问题：Python cfg.POOLING_SIZE属性的具体用法？Python cfg.POOLING_SIZE怎么用？Python cfg.POOLING_SIZE使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类core.config.cfg的用法示例。
在下文中一共展示了cfg.POOLING_SIZE属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _crop_pool_layer
# 需要导入模块: from core.config import cfg [as 别名]
# 或者: from core.config.cfg import POOLING_SIZE [as 别名]
def _crop_pool_layer(bottom, rois, max_pool=True):
# code modified from
# https://github.com/ruotianluo/pytorch-faster-rcnn
# implement it using stn
# box to affine
# input (x1,y1,x2,y2)
"""
[ x2-x1 x1 + x2 - W + 1 ]
[ ----- 0 --------------- ]
[ W - 1 W - 1 ]
[ ]
[ y2-y1 y1 + y2 - H + 1 ]
[ 0 ----- --------------- ]
[ H - 1 H - 1 ]
"""
rois = rois.detach()
batch_size = bottom.size(0)
D = bottom.size(1)
H = bottom.size(2)
W = bottom.size(3)
roi_per_batch = rois.size(0) / batch_size
x1 = rois[:, 1::4] / 16.0
y1 = rois[:, 2::4] / 16.0
x2 = rois[:, 3::4] / 16.0
y2 = rois[:, 4::4] / 16.0
height = bottom.size(2)
width = bottom.size(3)
# affine theta
zero = Variable(rois.data.new(rois.size(0), 1).zero_())
theta = torch.cat([\
(x2 - x1) / (width - 1),
zero,
(x1 + x2 - width + 1) / (width - 1),
zero,
(y2 - y1) / (height - 1),
(y1 + y2 - height + 1) / (height - 1)], 1).view(-1, 2, 3)
if max_pool:
pre_pool_size = cfg.POOLING_SIZE * 2
grid = F.affine_grid(theta, torch.Size((rois.size(0), 1, pre_pool_size, pre_pool_size)))
bottom = bottom.view(1, batch_size, D, H, W).contiguous().expand(roi_per_batch, batch_size, D, H, W)\
.contiguous().view(-1, D, H, W)
crops = F.grid_sample(bottom, grid)
crops = F.max_pool2d(crops, 2, 2)
else:
grid = F.affine_grid(theta, torch.Size((rois.size(0), 1, cfg.POOLING_SIZE, cfg.POOLING_SIZE)))
bottom = bottom.view(1, batch_size, D, H, W).contiguous().expand(roi_per_batch, batch_size, D, H, W)\
.contiguous().view(-1, D, H, W)
crops = F.grid_sample(bottom, grid)
return crops, grid