def noise_per_box(boxes, valid_mask, loc_noises, rot_noises): # boxes: [N, 5] # valid_mask: [N] # loc_noises: [N, M, 3] # rot_noises: [N, M] num_boxes = boxes.shape[0] num_tests = loc_noises.shape[1] box_corners = box_np_ops.box2d_to_corner_jit(boxes) current_corners = np.zeros((4, 2), dtype=boxes.dtype) # 鸟瞰图上4个角点 rot_mat_T = np.zeros((2, 2), dtype=boxes.dtype) # 旋转矩阵 success_mask = -np.ones((num_boxes, ), dtype=np.int64) # print(valid_mask) for i in range(num_boxes): if valid_mask[i]: for j in range(num_tests): current_corners[:] = box_corners[i] # 真值框鸟瞰图4个角点坐标 current_corners -= boxes[i, :2] # 减去中心水平坐标 _rotation_box2d_jit_( current_corners, rot_noises[i, j], # 添加旋转扰动 rot_mat_T) current_corners += boxes[i, :2] + loc_noises[i, j, :2] # 添加定位扰动 coll_mat = box_collision_test(current_corners.reshape(1, 4, 2), box_corners) coll_mat[0, i] = False # 这次是一个一个判断是否碰撞,扰动后与原始框不算相撞,之后会进行替代 # print(coll_mat) if not coll_mat.any(): success_mask[i] = j box_corners[i] = current_corners break return success_mask # 返回的是不冲突扰动编号,若均冲突则不添加扰动(-1)
def noise_per_box(boxes, valid_mask, loc_noises, rot_noises): # boxes: [N, 5] # valid_mask: [N] # loc_noises: [N, M, 3] # rot_noises: [N, M] num_boxes = boxes.shape[0] num_tests = loc_noises.shape[1] box_corners = box_np_ops.box2d_to_corner_jit(boxes) current_corners = np.zeros((4, 2), dtype=boxes.dtype) rot_mat_T = np.zeros((2, 2), dtype=boxes.dtype) success_mask = -np.ones((num_boxes, ), dtype=np.int64) # print(valid_mask) for i in range(num_boxes): if valid_mask[i]: for j in range(num_tests): current_corners[:] = box_corners[i] current_corners -= boxes[i, :2] _rotation_box2d_jit_(current_corners, rot_noises[i, j], rot_mat_T) current_corners += boxes[i, :2] + loc_noises[i, j, :2] coll_mat = box_collision_test(current_corners.reshape(1, 4, 2), box_corners) coll_mat[0, i] = False # print(coll_mat) if not coll_mat.any(): success_mask[i] = j box_corners[i] = current_corners break return success_mask
def noise_per_box_v2_(boxes, valid_mask, loc_noises, rot_noises, global_rot_noises): # boxes: [N, 5] # valid_mask: [N] # loc_noises: [N, M, 3] # rot_noises: [N, M] num_boxes = boxes.shape[0] num_tests = loc_noises.shape[1] box_corners = box_np_ops.box2d_to_corner_jit(boxes) current_corners = np.zeros((4, 2), dtype=boxes.dtype) current_box = np.zeros((1, 5), dtype=boxes.dtype) rot_mat_T = np.zeros((2, 2), dtype=boxes.dtype) dst_pos = np.zeros((2, ), dtype=boxes.dtype) success_mask = -np.ones((num_boxes, ), dtype=np.int64) corners_norm = np.zeros((4, 2), dtype=boxes.dtype) corners_norm[1, 1] = 1.0 corners_norm[2] = 1.0 corners_norm[3, 0] = 1.0 corners_norm -= np.array([0.5, 0.5], dtype=boxes.dtype) corners_norm = corners_norm.reshape(4, 2) for i in range(num_boxes): if valid_mask[i]: for j in range(num_tests): current_box[0, :] = boxes[i] current_radius = np.sqrt(boxes[i, 0]**2 + boxes[i, 1]**2) current_grot = np.arctan2(boxes[i, 0], boxes[i, 1]) dst_grot = current_grot + global_rot_noises[i, j] dst_pos[0] = current_radius * np.sin(dst_grot) dst_pos[1] = current_radius * np.cos(dst_grot) current_box[0, :2] = dst_pos current_box[0, -1] += (dst_grot - current_grot) rot_sin = np.sin(current_box[0, -1]) rot_cos = np.cos(current_box[0, -1]) rot_mat_T[0, 0] = rot_cos rot_mat_T[0, 1] = -rot_sin rot_mat_T[1, 0] = rot_sin rot_mat_T[1, 1] = rot_cos current_corners[:] = current_box[0, 2: 4] * corners_norm @ rot_mat_T + current_box[0, : 2] current_corners -= current_box[0, :2] _rotation_box2d_jit_(current_corners, rot_noises[i, j], rot_mat_T) current_corners += current_box[0, :2] + loc_noises[i, j, :2] coll_mat = box_collision_test( current_corners.reshape(1, 4, 2), box_corners) coll_mat[0, i] = False if not coll_mat.any(): success_mask[i] = j box_corners[i] = current_corners loc_noises[i, j, :2] += (dst_pos - boxes[i, :2]) rot_noises[i, j] += (dst_grot - current_grot) break return success_mask
def noise_per_box_group(boxes, valid_mask, loc_noises, rot_noises, group_nums): # WARNING: this function need boxes to be sorted by group id. # boxes: [N, 5] # valid_mask: [N] # loc_noises: [N, M, 3] # rot_noises: [N, M] num_groups = group_nums.shape[0] num_boxes = boxes.shape[0] num_tests = loc_noises.shape[1] box_corners = box_np_ops.box2d_to_corner_jit(boxes) max_group_num = group_nums.max() current_corners = np.zeros((max_group_num, 4, 2), dtype=boxes.dtype) rot_mat_T = np.zeros((2, 2), dtype=boxes.dtype) success_mask = -np.ones((num_boxes, ), dtype=np.int64) # print(valid_mask) idx = 0 for num in group_nums: if valid_mask[idx]: for j in range(num_tests): for i in range(num): current_corners[i] = box_corners[i + idx] current_corners[i] -= boxes[i + idx, :2] _rotation_box2d_jit_(current_corners[i], rot_noises[idx + i, j], rot_mat_T) current_corners[i] += boxes[i + idx, :2] + loc_noises[i + idx, j, :2] coll_mat = box_collision_test( current_corners[:num].reshape(num, 4, 2), box_corners) for i in range(num): # remove self-coll coll_mat[i, idx:idx + num] = False if not coll_mat.any(): for i in range(num): success_mask[i + idx] = j box_corners[i + idx] = current_corners[i] break idx += num return success_mask
def noise_per_box_group_v2_(boxes, valid_mask, loc_noises, rot_noises, group_nums, global_rot_noises): # WARNING: this function need boxes to be sorted by group id. # boxes: [N, 5] # valid_mask: [N] # loc_noises: [N, M, 3] # rot_noises: [N, M] num_boxes = boxes.shape[0] num_tests = loc_noises.shape[1] box_corners = box_np_ops.box2d_to_corner_jit(boxes) max_group_num = group_nums.max() current_box = np.zeros((1, 5), dtype=boxes.dtype) current_corners = np.zeros((max_group_num, 4, 2), dtype=boxes.dtype) dst_pos = np.zeros((max_group_num, 2), dtype=boxes.dtype) current_grot = np.zeros((max_group_num, ), dtype=boxes.dtype) dst_grot = np.zeros((max_group_num, ), dtype=boxes.dtype) rot_mat_T = np.zeros((2, 2), dtype=boxes.dtype) success_mask = -np.ones((num_boxes, ), dtype=np.int64) corners_norm = np.zeros((4, 2), dtype=boxes.dtype) corners_norm[1, 1] = 1.0 corners_norm[2] = 1.0 corners_norm[3, 0] = 1.0 corners_norm -= np.array([0.5, 0.5], dtype=boxes.dtype) corners_norm = corners_norm.reshape(4, 2) # print(valid_mask) idx = 0 for num in group_nums: if valid_mask[idx]: for j in range(num_tests): for i in range(num): current_box[0, :] = boxes[i + idx] current_radius = np.sqrt(current_box[0, 0]**2 + current_box[0, 1]**2) current_grot[i] = np.arctan2(current_box[0, 0], current_box[0, 1]) dst_grot[i] = current_grot[i] + global_rot_noises[idx + i, j] dst_pos[i, 0] = current_radius * np.sin(dst_grot[i]) dst_pos[i, 1] = current_radius * np.cos(dst_grot[i]) current_box[0, :2] = dst_pos[i] current_box[0, -1] += (dst_grot[i] - current_grot[i]) rot_sin = np.sin(current_box[0, -1]) rot_cos = np.cos(current_box[0, -1]) rot_mat_T[0, 0] = rot_cos rot_mat_T[0, 1] = -rot_sin rot_mat_T[1, 0] = rot_sin rot_mat_T[1, 1] = rot_cos current_corners[i] = current_box[ 0, 2:4] * corners_norm @ rot_mat_T + current_box[0, :2] current_corners[i] -= current_box[0, :2] _rotation_box2d_jit_(current_corners[i], rot_noises[idx + i, j], rot_mat_T) current_corners[i] += current_box[0, :2] + loc_noises[ i + idx, j, :2] coll_mat = box_collision_test( current_corners[:num].reshape(num, 4, 2), box_corners) for i in range(num): # remove self-coll coll_mat[i, idx:idx + num] = False if not coll_mat.any(): for i in range(num): success_mask[i + idx] = j box_corners[i + idx] = current_corners[i] loc_noises[i + idx, j, :2] += (dst_pos[i] - boxes[i + idx, :2]) rot_noises[i + idx, j] += (dst_grot[i] - current_grot[i]) break idx += num return success_mask