Electronicdesign 6888 Toshibabrightmode
Electronicdesign 6888 Toshibabrightmode
Electronicdesign 6888 Toshibabrightmode
Electronicdesign 6888 Toshibabrightmode
Electronicdesign 6888 Toshibabrightmode

CMOS Image-Sensor Technology Boosts Recording to 240 f/s

Feb. 7, 2014
By doubling the electrical charge of each pixel, this CMOS image sensor technology claims to deliver images that are four times brighter than possible with current sensors.

High-speed video recording requires a high frame rate and short exposure time, which often results in underexposed images. Hoping to raise and even double exposure time, a new complementary-metal-oxide-semiconductor (CMOS) image-sensor technology adopts an interlaced video output as opposed to the standard progressive output used by current sensors. As a result, Toshiba claims that its Bright Mode technology allows smartphones and tablets to record full-high-definition (full-HD) video at 240 f/s while realizing high-quality, slow-motion video playback at one-eighth the standard speed.

Bright Mode utilizes charge binning, which doubles the electrical charge of each pixel. In doing so, it creates images four times brighter than those produced with previous CMOS sensors. To further improve image quality, reduce color noise, and deliver critical detail, the sensors use backside illumination (BSI), color noise reduction (CNR), and high dynamic range (HDR). BSI enables the formation of finer image pixels through a lens on the silicon substrate behind the sensor, which increases light sensitivity. CNR separates the image into low, middle, and high spatial frequencies, combining the components of each into a map that decreases color noise. For its part, HDR takes multiple pictures at different exposure levels, stitching them together to produce a picture with truer colors.

In tandem with the new sensors, Toshiba is providing an interlace-progressive conversion program that enables users to offer high-quality video with low deterioration and without changing frame rate. This technology development was inspired by the growing popularity of short-video-clip mobile applications and the need for improved video viewing.

TOSHIBA

Sponsored Recommendations

Understanding Thermal Challenges in EV Charging Applications

March 28, 2024
As EVs emerge as the dominant mode of transportation, factors such as battery range and quicker charging rates will play pivotal roles in the global economy.

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!