face-api/build/xception/extractParamsFromWeigthMap.js

51 lines
2.8 KiB
JavaScript

import { disposeUnusedWeightTensors, extractWeightEntryFactory, loadSeparableConvParamsFactory, } from '../common';
import { loadConvParamsFactory } from '../common/loadConvParamsFactory';
import { range } from '../utils';
function loadParamsFactory(weightMap, paramMappings) {
const extractWeightEntry = extractWeightEntryFactory(weightMap, paramMappings);
const extractConvParams = loadConvParamsFactory(extractWeightEntry);
const extractSeparableConvParams = loadSeparableConvParamsFactory(extractWeightEntry);
function extractReductionBlockParams(mappedPrefix) {
const separable_conv0 = extractSeparableConvParams(`${mappedPrefix}/separable_conv0`);
const separable_conv1 = extractSeparableConvParams(`${mappedPrefix}/separable_conv1`);
const expansion_conv = extractConvParams(`${mappedPrefix}/expansion_conv`);
return { separable_conv0, separable_conv1, expansion_conv };
}
function extractMainBlockParams(mappedPrefix) {
const separable_conv0 = extractSeparableConvParams(`${mappedPrefix}/separable_conv0`);
const separable_conv1 = extractSeparableConvParams(`${mappedPrefix}/separable_conv1`);
const separable_conv2 = extractSeparableConvParams(`${mappedPrefix}/separable_conv2`);
return { separable_conv0, separable_conv1, separable_conv2 };
}
return {
extractConvParams,
extractSeparableConvParams,
extractReductionBlockParams,
extractMainBlockParams
};
}
export function extractParamsFromWeigthMap(weightMap, numMainBlocks) {
const paramMappings = [];
const { extractConvParams, extractSeparableConvParams, extractReductionBlockParams, extractMainBlockParams } = loadParamsFactory(weightMap, paramMappings);
const entry_flow_conv_in = extractConvParams('entry_flow/conv_in');
const entry_flow_reduction_block_0 = extractReductionBlockParams('entry_flow/reduction_block_0');
const entry_flow_reduction_block_1 = extractReductionBlockParams('entry_flow/reduction_block_1');
const entry_flow = {
conv_in: entry_flow_conv_in,
reduction_block_0: entry_flow_reduction_block_0,
reduction_block_1: entry_flow_reduction_block_1
};
const middle_flow = {};
range(numMainBlocks, 0, 1).forEach((idx) => {
middle_flow[`main_block_${idx}`] = extractMainBlockParams(`middle_flow/main_block_${idx}`);
});
const exit_flow_reduction_block = extractReductionBlockParams('exit_flow/reduction_block');
const exit_flow_separable_conv = extractSeparableConvParams('exit_flow/separable_conv');
const exit_flow = {
reduction_block: exit_flow_reduction_block,
separable_conv: exit_flow_separable_conv
};
disposeUnusedWeightTensors(weightMap, paramMappings);
return { params: { entry_flow, middle_flow, exit_flow }, paramMappings };
}
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