@tensorflow-models/coco-ssd
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Object detection model (coco-ssd) in TensorFlow.js
149 lines • 7.65 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
/**
* @license
* Copyright 2019 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
var tfconv = require("@tensorflow/tfjs-converter");
var tf = require("@tensorflow/tfjs-core");
// tslint:disable-next-line: no-imports-from-dist
var jasmine_util_1 = require("@tensorflow/tfjs-core/dist/jasmine_util");
var index_1 = require("./index");
(0, jasmine_util_1.describeWithFlags)('ObjectDetection', jasmine_util_1.NODE_ENVS, function () {
beforeEach(function () {
spyOn(tfconv, 'loadGraphModel').and.callFake(function () {
var model = {
executeAsync: function (x) { return [tf.ones([1, 1917, 90]), tf.ones([1, 1917, 1, 4])]; },
dispose: function () { return true; }
};
return model;
});
});
it('ObjectDetection detect method should not leak', function () { return __awaiter(void 0, void 0, void 0, function () {
var objectDetection, x, numOfTensorsBefore;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, (0, index_1.load)()];
case 1:
objectDetection = _a.sent();
x = tf.zeros([227, 227, 3]);
numOfTensorsBefore = tf.memory().numTensors;
return [4 /*yield*/, objectDetection.detect(x, 1)];
case 2:
_a.sent();
expect(tf.memory().numTensors).toEqual(numOfTensorsBefore);
return [2 /*return*/];
}
});
}); });
it('ObjectDetection e2e should not leak', function () { return __awaiter(void 0, void 0, void 0, function () {
var numOfTensorsBefore, objectDetection, x;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
numOfTensorsBefore = tf.memory().numTensors;
return [4 /*yield*/, (0, index_1.load)()];
case 1:
objectDetection = _a.sent();
x = tf.zeros([227, 227, 3]);
return [4 /*yield*/, objectDetection.detect(x, 1)];
case 2:
_a.sent();
x.dispose();
objectDetection.dispose();
expect(tf.memory().numTensors).toEqual(numOfTensorsBefore);
return [2 /*return*/];
}
});
}); });
it('ObjectDetection detect method should generate output', function () { return __awaiter(void 0, void 0, void 0, function () {
var objectDetection, x, data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, (0, index_1.load)()];
case 1:
objectDetection = _a.sent();
x = tf.zeros([227, 227, 3]);
return [4 /*yield*/, objectDetection.detect(x, 1)];
case 2:
data = _a.sent();
expect(data).toEqual([{ bbox: [227, 227, 0, 0], class: 'person', score: 1 }]);
return [2 /*return*/];
}
});
}); });
it('should allow custom model url', function () { return __awaiter(void 0, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, (0, index_1.load)({ base: 'mobilenet_v1' })];
case 1:
_a.sent();
expect(tfconv.loadGraphModel)
.toHaveBeenCalledWith('https://storage.googleapis.com/tfjs-models/' +
'savedmodel/ssd_mobilenet_v1/model.json');
return [2 /*return*/];
}
});
}); });
it('should allow custom model url', function () { return __awaiter(void 0, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, (0, index_1.load)({ modelUrl: 'https://test.org/model.json' })];
case 1:
_a.sent();
expect(tfconv.loadGraphModel)
.toHaveBeenCalledWith('https://test.org/model.json');
return [2 /*return*/];
}
});
}); });
});
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