56 lines
2 KiB
TypeScript
56 lines
2 KiB
TypeScript
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import * as tf from '@tensorflow/tfjs-core';
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import { ConvParams, SeparableConvParams } from '../common';
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import { depthwiseSeparableConv } from '../common/depthwiseSeparableConv';
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import { DenseBlock3Params, DenseBlock4Params } from './types';
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export function denseBlock3(
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x: tf.Tensor4D,
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denseBlockParams: DenseBlock3Params,
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isFirstLayer: boolean = false
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): tf.Tensor4D {
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return tf.tidy(() => {
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const out1 = tf.relu(
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isFirstLayer
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? tf.add(
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tf.conv2d(x, (denseBlockParams.conv0 as ConvParams).filters, [2, 2], 'same'),
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denseBlockParams.conv0.bias
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)
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: depthwiseSeparableConv(x, denseBlockParams.conv0 as SeparableConvParams, [2, 2])
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) as tf.Tensor4D
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const out2 = depthwiseSeparableConv(out1, denseBlockParams.conv1, [1, 1])
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const in3 = tf.relu(tf.add(out1, out2)) as tf.Tensor4D
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const out3 = depthwiseSeparableConv(in3, denseBlockParams.conv2, [1, 1])
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return tf.relu(tf.add(out1, tf.add(out2, out3))) as tf.Tensor4D
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})
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}
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export function denseBlock4(
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x: tf.Tensor4D,
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denseBlockParams: DenseBlock4Params,
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isFirstLayer: boolean = false,
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isScaleDown: boolean = true
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): tf.Tensor4D {
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return tf.tidy(() => {
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const out1 = tf.relu(
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isFirstLayer
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? tf.add(
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tf.conv2d(x, (denseBlockParams.conv0 as ConvParams).filters, isScaleDown ? [2, 2] : [1, 1], 'same'),
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denseBlockParams.conv0.bias
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)
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: depthwiseSeparableConv(x, denseBlockParams.conv0 as SeparableConvParams, isScaleDown ? [2, 2] : [1, 1])
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) as tf.Tensor4D
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const out2 = depthwiseSeparableConv(out1, denseBlockParams.conv1, [1, 1])
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const in3 = tf.relu(tf.add(out1, out2)) as tf.Tensor4D
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const out3 = depthwiseSeparableConv(in3, denseBlockParams.conv2, [1, 1])
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const in4 = tf.relu(tf.add(out1, tf.add(out2, out3))) as tf.Tensor4D
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const out4 = depthwiseSeparableConv(in4, denseBlockParams.conv3, [1, 1])
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return tf.relu(tf.add(out1, tf.add(out2, tf.add(out3, out4)))) as tf.Tensor4D
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})
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}
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