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onnxruntime 自定义算子

grid_sampler

Description

Perform sample from input with pixel locations from grid.

Parameters

Type Parameter Description
int interpolation_mode Interpolation mode to calculate output values. (0: bilinear , 1: nearest)
int padding_mode Padding mode for outside grid values. (0: zeros, 1: border, 2: reflection)
int align_corners If align_corners=1, the extrema (-1 and 1) are considered as referring to the center points of the input's corner pixels. If align_corners=0, they are instead considered as referring to the corner points of the input's corner pixels, making the sampling more resolution agnostic.

Inputs

input: T
Input feature; 4-D tensor of shape (N, C, inH, inW), where N is the batch size, C is the numbers of channels, inH and inW are the height and width of the data.
grid: T
Input offset; 4-D tensor of shape (N, outH, outW, 2), where outH and outW are the height and width of offset and output.

Outputs

output: T
Output feature; 4-D tensor of shape (N, C, outH, outW).

Type Constraints

  • T:tensor(float32, Linear)

MMCVModulatedDeformConv2d

Description

Perform Modulated Deformable Convolution on input feature, read Deformable ConvNets v2: More Deformable, Better Results for detail.

Parameters

Type Parameter Description
list of ints stride The stride of the convolving kernel. (sH, sW)
list of ints padding Paddings on both sides of the input. (padH, padW)
list of ints dilation The spacing between kernel elements. (dH, dW)
int deformable_groups Groups of deformable offset.
int groups Split input into groups. input_channel should be divisible by the number of groups.

Inputs

inputs[0]: T
Input feature; 4-D tensor of shape (N, C, inH, inW), where N is the batch size, C is the number of channels, inH and inW are the height and width of the data.
inputs[1]: T
Input offset; 4-D tensor of shape (N, deformable_group* 2* kH* kW, outH, outW), where kH and kW are the height and width of weight, outH and outW are the height and width of offset and output.
inputs[2]: T
Input mask; 4-D tensor of shape (N, deformable_group* kH* kW, outH, outW), where kH and kW are the height and width of weight, outH and outW are the height and width of offset and output.
inputs[3]: T
Input weight; 4-D tensor of shape (output_channel, input_channel, kH, kW).
inputs[4]: T, optional
Input bias; 1-D tensor of shape (output_channel).

Outputs

outputs[0]: T
Output feature; 4-D tensor of shape (N, output_channel, outH, outW).

Type Constraints

  • T:tensor(float32, Linear)

NMSRotated

Description

Non Max Suppression for rotated bboxes.

Parameters

Type Parameter Description
float iou_threshold The IoU threshold for NMS.

Inputs

inputs[0]: T
Input feature; 2-D tensor of shape (N, 5), where N is the number of rotated bboxes, .
inputs[1]: T
Input offset; 1-D tensor of shape (N, ), where N is the number of rotated bboxes.

Outputs

outputs[0]: T
Output feature; 1-D tensor of shape (K, ), where K is the number of keep bboxes.

Type Constraints

  • T:tensor(float32, Linear)

RoIAlignRotated

Description

Perform RoIAlignRotated on output feature, used in bbox_head of most two-stage rotated object detectors.

Parameters

Type Parameter Description
int output_height height of output roi
int output_width width of output roi
float spatial_scale used to scale the input boxes
int sampling_ratio number of input samples to take for each output sample. 0 means to take samples densely for current models.
int aligned If aligned=0, use the legacy implementation in MMDetection. Else, align the results more perfectly.
int clockwise If True, the angle in each proposal follows a clockwise fashion in image space, otherwise, the angle is counterclockwise. Default: False.

Inputs

input: T
Input feature map; 4D tensor of shape (N, C, H, W), where N is the batch size, C is the numbers of channels, H and W are the height and width of the data.
rois: T
RoIs (Regions of Interest) to pool over; 2-D tensor of shape (num_rois, 6) given as [[batch_index, cx, cy, w, h, theta], ...]. The RoIs' coordinates are the coordinate system of input.

Outputs

feat: T
RoI pooled output, 4-D tensor of shape (num_rois, C, output_height, output_width). The r-th batch element feat[r-1] is a pooled feature map corresponding to the r-th RoI RoIs[r-1].

Type Constraints

  • T:tensor(float32)

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