Monday, April 24, 2017

PCO Compares Image Sensors DR

PCO DR whitepaper gives compiles a table comparing various image sensors DR. The rolling shutter BAE sCMOS sensor outperforms all global shutter alternatives:

Sunday, April 23, 2017

Image Sensor Reliability, Variations, and Drifts over Time

Albert Theuwissen has a unique experience with image sensor statistics and their parameters changing over time when his students run through the same devices characterization, course after course, year after year. So, he came up with a brilliant idea to present his knowledge in a report on CMOS sensors reproducibility, variability, and reliability. The first info about the report is expected to be available in a few weeks.

Saturday, April 22, 2017

Strategy Analytics on ADAS Camera Market

Strategy Analytics presentation dated by Sept. 2016 forecasts a large growth for ADAS camera market:

Academic and University News

Prof. Shen Guozhen’s Group in Institute of Semiconductors, Chinese Academy of Sciences, with their collaborators in Hong Kong University of Science and Technology developed a flexible UV image sensor based on ZnO quantum dots (QDs) decorated ZTO nanowires (NWs). The device was fabricated on the flexible polyethylene terephthalate (PET) substrate, which displayed outstanding flexibility, electrical stability and folding endurance.

Duo to the rational band engineering at the QD/NW interface which results in effective separation of electron-hole pairs, the device showed ultrahigh specific detectivity (up to 9.0 × 1017 Jones), photoconductive gain (up to 1.1 × 107) and high response speed (47 ms).


EETimes: Non-uniform spatial image sampling has been a popular idea over many decades. University of Glasgow, Scotland, UK, gives it another try in arxiv.org open-acess paper "Adaptive foveated single-pixel imaging with dynamic super-sampling" by David B. Phillips, Ming-Jie Sun, Jonathan M. Taylor, Matthew P. Edgar, Stephen M. Barnett, Graham G. Gibson, and Miles J. Padgett.

"In this work we take a different approach and adopt a strategy inspired by the foveated vision systems found in the animal kingdom - a framework that exploits the spatio-temporal redundancy present in many dynamic scenes. In our single-pixel imaging system a high-resolution foveal region follows motion within the scene, but unlike a simple zoom, every frame delivers new spatial information from across the entire field-of-view. Using this approach we demonstrate a four-fold reduction in the time taken to record the detail of rapidly evolving features, whilst simultaneously accumulating detail of more slowly evolving regions over several consecutive frames."

Friday, April 21, 2017

Reuters Says that Sony Image Sensors Cost is Lower than Expected

Reuters: Sony revises upward its annual profit estimation, in part due to the lower costs in its image sensor business. The official annual results for the company's fiscal year ended on March 31, 2017 are to be announced on April 28.

Samsung Galaxy S8 Rear Camera Teardown

TechInsights posted a teardown info on Galaxy S8 rear camera. The 12MP stacked dual pixel image sensor has been identified as one made by Sony, probably IMX333. Other Galaxy S8 phones might contain Samsung-made sensors.

The absence of dual camera in a flagship phone is said to save about $12.50 from the final BOM costs for Samsung.

Analog Devices "Material Sensing Platform"

Analog Devices one more time demos its IR spectrometer-based Material Sensing Platform for smartphones, developed together with Consumer Physics. The previous demo is here.

Thursday, April 20, 2017

Samsung Galaxy S8 Teardown Reveals Stand-Alone ISP, Iris Scanner Internals

TechInsights publishes Samsung Galaxy S8 smartphone reverse engineering article listing Samsung S5C73C3 image processors among the other chips on the PCB. The front camera with iris scanner module is shown on the images below:


The front camera is based on Sony stacked IMX320, while the iris scanner BSI sensor is marked as S5K5E6YV (or S5K5E6YV). Both sensors have pixel pitch of 1.12um.

KAUST Interview with Eric Fossum

King Abdullah University of Science and Technology (KAUST), Saudi Arabia publishes an interview with Eric Fossum on CMOS sensor invention history and Quanta image sensor:

Wednesday, April 19, 2017

Mobileye CEO Demos Self-Driving Car

Mobileye CEO and Co-Founder Ziv Aviram demos his company self-driving car in the 360-deg surround video:



The full presentation at YPO Edge 2017 held in Vancouver, Canada can be seen here.