regression: model execution failure

[vladmandic]

PR #6904 Add resource initializer support
causes execution failure for some models that used to previously work without issues.

Issue is in https://github.com/tensorflow/tfjs/blame/master/tfjs-converter/src/executor/graph_model.ts#L361

Error:

error uncaughtException TypeError: Cannot read properties of undefined (reading 'img_inputs')
  at node_modules/@tensorflow/tfjs-converter/dist/tf-converter.node.js:30706:69
  at Array.reduce (<anonymous>)
  at GraphModel.normalizeInputs (node_modules/@tensorflow/tfjs-converter/dist/tf-converter.node.js:30705:32)
  at GraphModel.execute (node_modules/@tensorflow/tfjs-converter/dist/tf-converter.node.js:30777:23)
  at human.node-wasm.js:99:175230

cc @pyu10055 @ahmedsabie

[vladmandic]

@rthadur @ahmedsabie @pyu10055 any updates?
for me, this is a blocker for tfjs 4.0 and its not even triaged yet after 10 days.

[ahmedsabie]

@vladmandic Do you have a model where the issue occurs?

[vladmandic]

@ahmedsabie here you go:

const tf = require('@tensorflow/tfjs-node'); // same issue using standard tfjs with wasm backend

async function main() {
  const model = await tf.loadGraphModel('https://vladmandic.github.io/human-models/models/mobilefacenet.json');
  const input = tf.randomUniform([1, model.inputs[0].shape[1], model.inputs[0].shape[2], 3], 0, 1, 'float32');
  const output = model.execute(input); // exception: TypeError: Cannot read properties of undefined (reading 'img_inputs')
}

main();

[google-ml-butler]

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