64 lines
2.5 KiB
Protocol Buffer
64 lines
2.5 KiB
Protocol Buffer
// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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syntax = "proto2";
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package mediapipe;
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import "mediapipe/framework/calculator.proto";
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// Options to generate anchors for SSD object detection models.
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message SsdAnchorsCalculatorOptions {
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extend mediapipe.CalculatorOptions {
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optional SsdAnchorsCalculatorOptions ext = 247258239;
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}
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// Size of input images.
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required int32 input_size_width = 1;
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required int32 input_size_height = 2;
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// Min and max scales for generating anchor boxes on feature maps.
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required float min_scale = 3;
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required float max_scale = 4;
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// The offset for the center of anchors. The value is in the scale of stride.
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// E.g. 0.5 meaning 0.5 * |current_stride| in pixels.
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required float anchor_offset_x = 5 [default = 0.5];
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required float anchor_offset_y = 6 [default = 0.5];
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// Number of output feature maps to generate the anchors on.
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required int32 num_layers = 7;
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// Sizes of output feature maps to create anchors. Either feature_map size or
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// stride should be provided.
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repeated int32 feature_map_width = 8;
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repeated int32 feature_map_height = 9;
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// Strides of each output feature maps.
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repeated int32 strides = 10;
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// List of different aspect ratio to generate anchors.
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repeated float aspect_ratios = 11;
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// A boolean to indicate whether the fixed 3 boxes per location is used in the
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// lowest layer.
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optional bool reduce_boxes_in_lowest_layer = 12 [default = false];
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// An additional anchor is added with this aspect ratio and a scale
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// interpolated between the scale for a layer and the scale for the next layer
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// (1.0 for the last layer). This anchor is not included if this value is 0.
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optional float interpolated_scale_aspect_ratio = 13 [default = 1.0];
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// Whether use fixed width and height (e.g. both 1.0f) for each anchor.
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// This option can be used when the predicted anchor width and height are in
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// pixels.
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optional bool fixed_anchor_size = 14 [default = false];
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}
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