Research Bits: Nov. 7


ADC side-channel attacks Researchers at MIT propose two ways to protect analog-to-digital converters (ADCs) from power and electromagnetic side-channel attacks. The researchers first investigated the side-channel attacks that could be used against ADCs. Power attacks usually involve an attacker soldering a resistor onto the device’s circuit board to measure its power usage. An electromagn... » read more

AI Feeds Vision Processor, Image Sensor Boom


Vision systems are rapidly becoming ubiquitous, driven by big improvements in image sensors as well as new types of sensors. While the sensor itself often is developed using mature-node silicon, increasingly it is connected to vision processors developed at the most advanced process nodes. That allows for the highest performance per watt, and it also allows designs to incorporate AI accelera... » read more

Image Sensor Trained To Classify Optically Projected Images By Reading Out The Few Most Relevant Pixels


New research paper "Sparse pixel image sensor" from Institute of Photonics, Vienna University of Technology. Abstract "As conventional frame-based cameras suffer from high energy consumption and latency, several new types of image sensors have been devised, with some of them exploiting the sparsity of natural images in some transform domain. Instead of sampling the full image, those devices... » read more

A novel multimodal hand database for biometric authentication


Abstract "Biometric authentication is one of the most exciting areas in the era of security. Biometric authentication ideally refers to the process of identifying or verifying the user through physiological and behavioral measurements using security processes. Multimodal biometrics are preferred over unimodal biometrics due to the defensive nature of multimodal biometrics. This research intr... » read more

Programmable black phosphorus image sensor for broadband optoelectronic edge computing


Abstract "Image sensors with internal computing capability enable in-sensor computing that can significantly reduce the communication latency and power consumption for machine vision in distributed systems and robotics. Two-dimensional semiconductors have many advantages in realizing such intelligent vision sensors because of their tunable electrical and optical properties and amenability fo... » read more

13000 FPS Vision System-on-Chip With Mixed-Signal Compressed Sensing


This paper presents a monolithic high-speed VSoC (Vision-System-on-Chip) with three software-programmable 16-bit ASIPs (application-specific instruction-set processors), a 1024-fold column-parallel data path of charge-based convolution functionality, freely configurable A/D conversion, 8-bit processor elements with 128 bytes of RAM each, and asynchronously compressing output of sparse column da... » read more

A Look Inside The Apple iPhone 13 Pro


By Stacy Wegner, Daniel Yang, and Ziad Shukry We received the iPhone 13 and iPhone 13 Pro in our labs and identification and early costing analysis are available below. The phone models we are discussing today are the Apple iPhone 13 Pro, model A2636, 256GB and the Apple iPhone 13, model A2631 256GB. Apple iPhone 13 Pro cost analysis We have completed the QTT cost analysis and estimate ... » read more

Advances In 3D CMOS Image Sensors Optical Modeling: Combining Realistic Morphologies With FDTD


This paper describes an innovative methodology to investigate the relationship between device morphology and the optical performance of CMOS image sensors. By coupling a FDTD-based 3D Maxwell solver with silicon-accurate process modeling software, we have been able to analyze the sensitivity of image sensor quantum efficiency with respect to statistical variations in nm-scale device topology. A... » read more

System Bits: Nov. 13


Deep learning device identifies airborne allergens To identify and measure airborne biological particles, or bioaerosols, that originate from living organisms such as plants or fungi, UCLA researchers have invented a portable device that uses holograms and machine learning. The device is trained to recognize five common allergens — pollen from Bermuda grass, oak, ragweed and spores from t... » read more

Low-Latency Image Acquisition And Processing With A Programmable Vision-System-On-Chip


This work aims to demonstrate the benefits of using a Vision-System-on-Chip for image processing tasks with very high latency demands between image acquisition and processing. By leveraging a column-parallel, mixed-signal data path, which is entirely software-defined by three application-specific instruction- set processors (ASIPs), image data within multiple regions of interest can be analyzed... » read more

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