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New depth sensors to male self-driving cars practical

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7 years ago

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New York, Dec 24 (IANS) A team of researchers at the Massachusetts Institute of Technology (MIT) is developing new depth sensors that could be sensitive enough to make self-driving vehicles practical.

The Camera Culture group at MIT’s Media Lab – that has two Indian-origin researchers Achuta Kadambi and Ramesh Raskar – has been developing innovative imaging systems by using “time of flight” – an approach that gauges distance by measuring the time it takes light projected into a scene to bounce back to a sensor.

In a new paper in the journal IEEE Access, the team has presented new approach to time-of-flight imaging that increases its depth resolution 1,000-fold – the type of resolution that could make self-driving cars practical.

The new approach could also enable accurate distance measurements through fog, which has proven to be a major obstacle to the development of self-driving cars.

“As you increase the range, your resolution goes down exponentially,” said Kadambi, a joint PhD student in electrical engineering and computer science and media arts and sciences.

At a range of two metres, existing “time-of-flight” systems have a depth resolution of about a centimetre. That’s good enough for the assisted-parking and collision-detection systems on today’s cars.

Kadambi conducted tests in which he sent a light signal through 500 metres of optical fibre with regularly spaced filters along its length.

The tests suggest that at a range of 500 metres, the MIT system should still achieve a depth resolution of only a centimetre.

“We’re modulating the light at a few gigahertz, so it’s like turning a flashlight on and off millions of times per second. But we’re changing that electronically, not optically. The combination of the two is really where you get the power for this system,” explained Raskar, dead of the Camera Culture group.

–IANS
na/ksk

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Apple is giving a huge discount on its gadgets: Details inside

Published

2 years ago

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May 5, 2022

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If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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