def anchors_plane(height, width, stride=1.0, **kwargs):
"""Get a complete set of anchors in a spatial plane,
height, width are plane dimensions
stride is scale ratio of
"""
# TODO: implement in C, or pre-compute them, or set to a fixed input-shape
# enum all anchors in a plane
scales = kwargs.setdefault('scales', [2, 4, 8, 16, 32])
ratios = kwargs.setdefault('ratios', [0.5, 1, 2.0])
base = kwargs.setdefault('base', 16)
anc = anchors(scales, ratios, base)
all_anchors = cython_anchor.anchors_plane(height, width, stride, anc)
return all_anchors
def anchors_plane(height, width, stride = 1.0,
scales=[2, 4, 8, 16, 32], ratios=[0.5, 1, 2.0], base=16):
"""Get a complete set of anchors in a spatial plane,
height, width are plane dimensions
stride is scale ratio of
"""
# TODO: implement in C, or pre-compute them, or set to a fixed input-shape
# enum all anchors in a plane
# scales = kwargs.setdefault('scales', [2, 4, 8, 16, 32])
# ratios = kwargs.setdefault('ratios', [0.5, 1, 2.0])
# base = kwargs.setdefault('base', 16)
anc = anchors(scales, ratios, base)
all_anchors = cython_anchor.anchors_plane(height, width, stride, anc)
return all_anchors
def anchors_plane(height,
width,
stride=1.0,
scales=[2., 4., 8., 16., 32.],
ratios=[0.5, 1, 2.0],
base=16,
anchor_shift=[[0.0, 0.0]]):
"""Get a complete set of anchors in a spatial plane,
height, width are plane dimensions
stride is scale ratio of
"""
# TODO: implement in C, or pre-compute them, or set to a fixed input-shape
# enum all anchors in a plane
# scales = kwargs.setdefault('scales', [2, 4, 8, 16, 32])
# ratios = kwargs.setdefault('ratios', [0.5, 1, 2.0])
# base = kwargs.setdefault('base', 16)
anc = anchors(scales, ratios, base).astype(np.float)
anchor_shift = np.array(anchor_shift, dtype=np.float)
all_anchors = cython_anchor.anchors_plane(height, width, stride, anc,
anchor_shift)
return all_anchors
ret[inds, :] = data
return ret
if __name__ == '__main__':
import time
t = time.time()
a = anchors()
num_anchors = 0
# all_anchors = anchors_plane(200, 250, stride=4, boarder=0)
# num_anchors += all_anchors.shape[0]
for i in range(10):
ancs = anchors()
all_anchors = cython_anchor.anchors_plane(200, 250, 4, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[
1] * all_anchors.shape[2]
all_anchors = cython_anchor.anchors_plane(100, 125, 8, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[
1] * all_anchors.shape[2]
all_anchors = cython_anchor.anchors_plane(50, 63, 16, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[
1] * all_anchors.shape[2]
all_anchors = cython_anchor.anchors_plane(25, 32, 32, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[
1] * all_anchors.shape[2]
print('average time: %f' % ((time.time() - t) / 10))
print('anchors: %d' % (num_anchors / 10))
print(a.shape, '\n', a)
# from IPython import embed
ret = np.empty((count,) + data.shape[1:], dtype=np.float32)
ret.fill(fill)
ret[inds, :] = data
return ret
if __name__ == '__main__':
import time
t = time.time()
a = anchors()
num_anchors = 0
# all_anchors = anchors_plane(200, 250, stride=4, boarder=0)
# num_anchors += all_anchors.shape[0]
for i in range(10):
ancs = anchors()
all_anchors = cython_anchor.anchors_plane(200, 250, 4, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[1] * all_anchors.shape[2]
all_anchors = cython_anchor.anchors_plane(100, 125, 8, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[1] * all_anchors.shape[2]
all_anchors = cython_anchor.anchors_plane(50, 63, 16, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[1] * all_anchors.shape[2]
all_anchors = cython_anchor.anchors_plane(25, 32, 32, ancs)
num_anchors += all_anchors.shape[0] * all_anchors.shape[1] * all_anchors.shape[2]
print('average time: %f' % ((time.time() - t) / 10))
print('anchors: %d' % (num_anchors / 10))
print(a.shape, '\n', a)
print (all_anchors.shape)
# from IPython import embed
# embed()