Rambus unveils 'Binary Pixel' sensor tech for expanded dynamic range
US technology company Rambus has unveiled 'Binary Pixel' sensor technology, promising greatly expanded dynamic range for the small sensors used in devices such as smartphones. Current image sensors are unable to record light above a specific saturation point, which results in clipped highlights. Binary Pixel technology gets around this by recording when a pixel has received a certain amount of light, then resetting it and in effect restarting the exposure. The result is significantly expanded dynamic range from a single-shot exposure. The company has demonstrated the technology using a low resolution (128 x 128 pixel) sensor, and says it can easily be incorporated into CMOS sensors using current manufacturing methods.
Aside from the 'temporal oversampling' described above, Binary Pixel technology employs a couple of further innovations. It uses Binary Operation, sensing photons using discrete thresholds which the company says is similar to the human eye for better sensitivity across gamut of dark to bright. It also employs Spatial Oversampling, meaning the individual pixels are sub-divided to capture more data and improve dynamic range. The technology isn't restricted to phone sensors, and in principle should work equally well for all sensor sizes.
Rambus lists the key advantages of Binary Pixel sensors as follows:
Ultra-High Dynamic Range
• Optimized at the pixel level for DSLR-quality dynamic range in mobile and consumer cameras
Single-Shot HDR Photos & Videos
• Operates in a single exposure period to capture HDR images real-time with no post processing
Improved Low-Light Sensitivity
• Spatial and temporal oversampling reduces noise and graininess
Works with Current Mobile Platform
• Designed to integrate with current SoCs, be manufactured using current CMOS technology, and fit in a comparable form-factor, cost and power envelope
Rambus is showing its new technology at the Mobile World Congress 2013 in Barcelona. Connect.dpreview.com is at MWC 2013 to bring you all the news and developments, click through to read all about the latest devices and apps.
Rambus Unveils Binary Pixel Technology For Dramatically Improved Image Quality in Mobile Devices
|Image comparison illustrating the theoretical benefits of the Binary Pixel Imager|
Breakthrough technology Provides Single-Shot High Dynamic Range and Improved Low-Light Sensitivity in a Single Exposure
SUNNYVALE, CALIFORNIA AND BARCELONA, SPAIN – February 25, 2013 – Rambus Inc. (NASDAQ: RMBS), the innovative technology solutions company that brings invention to market, today unveiled breakthrough binary pixel technology that dramatically improves the quality of photos taken from mobile devices. The Rambus Binary Pixel technology includes image sensor and image processing architectures with single-shot high dynamic range (HDR) and improved low-light sensitivity for better videos and photos in any lighting condition.
“Today’s compact mainstream sensors are only able to capture a fraction of what the human eye can see,” said Dr. Martin Scott, chief technology officer at Rambus. “Our breakthrough binary pixel technology enables a tremendous performance improvement for compact imagers capable of ultra high-quality photos and videos from mobile devices.”
As improvements are made in resolution and responsiveness, more and more consumers are using the camera functionality on their smart phone as the primary method for taking photos and capturing memories. However, high contrast scenes typical in daily life, such as bright landscapes, sunset portraits, and scenes with both sunlight and shadow, are difficult to capture with today’s compact mobile sensors - the range of bright and dark details in these scenes simply exceeds the limited dynamic range of mainstream CMOS imagers.
This binary pixel technology is optimized at the pixel level to sense light similar to the human eye while maintaining comparable form factor, cost and power of today’s mobile and consumer imagers. The results are professional-quality images and videos from mobile devices that capture the full gamut of details in dark and bright intensities.
Benefits of binary pixel technology:
- Improved image quality optimized at the pixel level
- Single-shot HDR photo and video capture operates at high-speed frame-rates
- Improved signal-to-noise performance in low-light conditions
- Silicon-proven technology for mobile form factors
- Easily integratable into existing SoC architectures
- Compatible with current CMOS image sensor process technology
The Rambus binary pixel has been demonstrated in a proof-of-concept test-chip and the technology is currently available for integration into future mobile and consumer image sensors. For additional information visit www.rambus.com/binarypixel
|Vulcan Duxford-4804 by Mike Engles|
|Mystic mist by Massao|
from Best Photo of the Week...
|Wryneck with ants by cangopluto|
from Old Tech: Lens Mounted Via A Custom Adapter
|Rainbow and Truck by dalgo|
ON1 software has today released the latest version of its Raw processing and image editing and organization application Photo RAW.
The Natural History Museum has announced the winners of its 55th annual Wildlife Photographer of the Year competition.
According to a report from Bloomberg, beta testers of Adobe's Photoshop CC for iPad have noticed a number of major features missing or incomplete.
The lens is currently available to pre-order for $449 and is set for retail availability on November 8, 2019.
Datacolor is offering the 64-bit update as a free software update to ensure the Spyder5 calibration sensor works with Apple's latest desktop operating system macOS Catalina.
Instagram is rolling out a number of new privacy-centric features that will make it easier to see and edit what third-party applications have access to your Instagram data.
We've got our hands on the Olympus E-M5 III and it is is, on the outside, a refinement of its predecessor. But we'll go a bit deeper and talk about what's also changed on the inside in our hands-on slideshow.
We spent 48 hours exploring the deserts of southern Utah with the E-M5 III, Olympus smallest, lightest 20MP camera. Click through to read about our experience shooting with the camera and to see what kind of photos it's capable of taking.
We recently joined Olympus in Moab, Utah for some preliminary shooting with the OM-D E-M5 III. See how the photos look in our extensive sample gallery.
Olympus has announced the OM-D E-M5 Mark III - a more compact camera than its predecessor, which incorporates a lot of technology found previously in the higher-end E-M1 Mark II.
The PEN E-PL10 remains largely unchanged from its predecessor aside from the redesigned display and a few software additions.
DPReview Science Editor Rishi Sanyal had an opportunity to sit down with Marc Levoy and Isaac Reynolds of Google to dive deep into the most important camera updates on the new Pixel 4.
Chinese company Zhiyun, the world's leading gimbal manufacturer, announced the WEEBILL-S earlier this week.
United Kingdom photo retailer Jessops is reportedly looking for administrators to help sort out rising costs and falling revenue.
Google has confirmed it's ending its free 'original quality' image backups with its Pixel 4 and Pixel 4 XL smartphones. This marks the first time the popular perk isn't offered since the launch of the original Pixel smartphone.
In a story shared on 35mmc, photographer Steve Boykin tells how he stumbled upon a Fujifilm XF 23mm F1.4 R lens he had lost four months prior during a trek in the wilderness and discovered it still works fine.
Sandmarc's new filter series combines the characteristics of polarizing and neutral density (ND) filters into one single filter.
Our testing of the Canon G7 X III continues, which means we've brought along on plenty of day trips and adventures to get a feel for its performance in a number of situations. Take a look at some of the resulting images.
Shimoda Designs has launched a Kickstarter campaign to fund its new 'ultra-aggressive' lineup of camera bags that includes three backpacks, two rollers and a handful of new and improved accessories.
Meike has added yet another mount option to its 85mm F2.8 manual macro lens, which was previously available for Canon RF, Canon EF, Sony E/FE and Nikon F mounts.
Camrote version 1.2.0 adds new zoom and time-lapse capabilities to select Sony camera systems.
Google has officially unveiled the Pixel 4, with the addition of a telephoto camera headlining the camera updates. Other improvements include real-time HDR preview in live view, added brightness and exposure controls, and an updated portrait mode with better depth mapping.
With Luminar 4, Skylum Software aims to provide sophisticated editing tools in an easy to use package.
The a7R IV is Sony's latest high-resolution interchangeable lens camera, but that doesn't mean it's just for landscape photographers. Get all the details about this 60.2MP full-framer in our full review.
Google's Night Sight has justifiably been considered the low light king, but with the iPhone 11 Apple is challenging for this title with its own Night Mode. Take a look at how they compare side-by-side.
Be vigilant on what's being reflected in eyes (or glasses) before posting photographs of yourself or others online. High resolution photographs aren't always beneficial.
The Flujo Signature Pro has passed its funding goal on Kickstarter and the first units are expected to ship in November 2019.
Based on the images Ilford Photo shared alongside the tweet, the film stock will come in four different formats and be released on October 24.
Host Ben Krasnow of YouTube channel Applied Science shows how film cameras used a micro LCD projector and a small incandescent light to project the time and date onto photographs.