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Chinese Handset Maker Xiaomi India Refreshes Redmi Series With 3 Devices

Redmi 6A is the successor to Redmi 5A and comes with 5.45-inch 18:9 full screen display with an HD+ resolution

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Xiaomi also refreshes 'Mi TV' series in India. (Wikimedia Commons)

Refreshing its budget Redmi series, Chinese handset maker Xiaomi on Wednesday launched Redmi 6, Redmi 6A and Redmi 6 Pro in India.

Redmi 6 will be available starting September 10 on Mi.com and Flipkart in 3GB RAM + 32GB storage variant for Rs 7,999 and 3GB RAM + 64GB onboard storage version for Rs 9,499.

The device will be available at this introductory price for two months, the company said in a statement.

It sports Helio P22 chipset with 12nm processor, which consumes about 48 per cent lesser power than comparable 28nm chipsets.

Redmi 6 comes with a 5.45-inch 18:9 full screen HD+ display. It has a polycarbonate back panel with the feel of brushed metal surface and has an arc design.

“With the only smartphones in its segment with 12nm architecture, we hope Redmi 6A and Redmi 6 will be worthy successors in the market with their performance,” said Raghu Reddy, Head-Category and Online Sales, Xiaomi India.

Xiaomi
Xiaomi.

“Redmi 6 Pro with AI dual camera and an astounding two-day battery is also another proof of Xiaomi’s focus on providing best specs at an honest pricing,” Reddy added.

Redmi 6A is the successor to Redmi 5A and comes with 5.45-inch 18:9 full screen display with an HD+ resolution.

It sports Helio A22 chip and a 13MP rear camera.

Redmi 6A (2GB RAM + 16GB storage) variant has been launched at Rs 5,999 while 2GB RAM + 32GB storage costs Rs 6,999. The device would be available on Mi.com and Amazon, starting September 19.

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Redmi 6 Pro comes with Qualcomm Snapdragon 625 and has an AI dual camera along with 4,000mAh battery to deliver a two-day battery life, the company claimed.

The device has 12MP + 5MP dual rear cameras and 19:9 full screen display with FHD+ resolution.

Redmi 6 Pro 3GB RAM + 32GB storage is priced at Rs 10,999 while 4GB RAM + 64GB storage variant is priced at Rs 12,999. The device would be available on Mi.com and Amazon starting September 11. (IANS)

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Researchers Develop System That Can Locate Shooters Using Smartphone Video

Specifically, the system looks at the time delay between the crack caused by a supersonic bullet's shock wave and the muzzle blast, which travels at the speed of sound

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By using Video from three or more smartphones, the direction from which the shots were fired -- and the shooter's location -- can be calculated based on the differences in how long it takes the muzzle blast to reach each camera. Pixabay

Researchers have developed a system that can accurately locate a shooter based on Video recordings from as few as three smartphones.

The system, called Video Event Reconstruction and Analysis (VERA), won’t necessarily replace the commercial microphone arrays for locating shooters that public safety officials already use, although it may be a useful supplement for public safety when commercial arrays aren’t available.

“One key motivation for assembling VERA was to create a tool that could be used by human rights workers and journalists who investigate war crimes, terrorist acts and human rights violations,” study researcher Alexander Hauptmann from Carnegie Mellon University in the US.

When demonstrated using three video recordings from the 2017 mass shooting in Las Vegas that left 58 people dead and hundreds wounded, the system correctly estimated the shooter’s actual location — the north wing of the Mandalay Bay hotel.

The estimate was based on three gunshots fired within the first minute of what would be a prolonged massacre.

VERA uses machine learning techniques to synchronise the video feeds and calculate the position of each camera based on what that camera is seeing.

“But it’s the audio from the video feeds that’s pivotal in localising the source of the gunshots,” Hauptmann said.

Specifically, the system looks at the time delay between the crack caused by a supersonic bullet’s shock wave and the muzzle blast, which travels at the speed of sound.

It also uses audio to identify the type of gun used, which determines bullet speed.

VERA can then calculate the shooter’s distance from the smartphone.

“When we began, we didn’t think you could detect the crack with a smartphone because it’s really short,” Hauptmann said.

“But it turns out today’s cell phone microphones are pretty good,” Hauptmann added.

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Researchers have developed a system that can accurately locate a shooter based on Video recordings from as few as three smartphones. Pixabay

By using video from three or more smartphones, the direction from which the shots were fired — and the shooter’s location — can be calculated based on the differences in how long it takes the muzzle blast to reach each camera.

VERA is not limited to detecting gunshots.

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“It is an event analysis system that can be used to locate a variety of other sounds relevant to human rights and war crimes investigations,” Hauptmann said.

The researchers presented VERA and released it as open-source code at the Association for Computing Machinery’s International Conference on Multimedia in Nice, France. (IANS)