Voice Assistant to Recognize Voiceless Commands

Technology, based on neural network, can be used in public places without the risk of disturbing others
22 October 2018   302

Developers from Tsinghua University have developed a voice assistant for smartphones that recognizes commands from the user's lip movements. This technology can be applied in public places without the risk of disturbing others.

Yuanchun Shi and colleagues presented an article at the UIST 2018 conference in which they described lip recognition technology and its translation into text. Such a voice assistant uses the front camera and the convolutional neural network. The algorithm tracks 20 control points that accurately describe the shape of the lips, and also determines how open the user's mouth is. This allows you to recognize the beginning and end of the command. The second algorithm decrypts the data. In this case, while all the calculations occur separately on a powerful PC.

For recognition, a limited set of commands is used — a total of 44, which apply to both individual applications and specific functions, such as turning Wi-Fi on and off. System-wide tasks are also supported, such as responding to a message or highlighting text.

The developers claim that the average recognition accuracy is 95.5%. It is based on the results of training on the speech of 21 people. Tests were conducted in the Beijing subway. As a result, it turned out that this method is considered more comfortable by users.

So far, the developers do not specify when the new application will appear in the release. However, if a powerful computer is still needed for recognition, it will not happen soon. Or the system will require a permanent connection to the network.

Intel to Present Neural Compute Stick 2

Neural Compute Stick 2 is an autonomous neural network on a USB drive
15 November 2018   116

At the Beijing conference, Intel introduced Neural Compute Stick 2, a device that facilitates the development of smart software for peripheral devices. These include not only network equipment, but also IoT systems, video cameras, industrial robots, medical systems and drones. The solution is intended primarily for projects that use computer vision.

Neural Compute Stick 2 is an autonomous neural network on a USB drive and should speed up and simplify the development of software for peripheral devices by transferring most of the computation needed for learning to the specialized Intel Movidius Myriad X processor. Neural Compute Engine, responsible for the high-speed neural network of deep learning.

The first Neural Compute Stick was created by Movidius, which was acquired by Intel in 2016. The second version is 8 times faster than the first one and can work on Linux OS. The device is connected via a USB interface to a PC, laptop or peripheral device.

Intel said that Intel NCS 2 allows to quickly create, configure and test prototypes of neural networks with deep learning. Calculations in the cloud and even access to the Internet for this is not needed.

The module with a neural network has already been released for sale at a price of $ 99. Even before the start of sales, some developers got access to Intel NCS 2. With its help, projects such as Clean Water AI, which use machine vision with a microscope to detect harmful bacteria in water, BlueScan AI, scanning the skin for signs of melanoma, and ASL Classification, real-time translates sign language into text.

Over the Movidius Myriad X VPU, Intel worked with Microsoft, which was announced at the Developer Day conference in March 2018. The AI ​​platform is expected to appear in upcoming Windows updates.