Face recognition on a smart image sensor using local gradients

W Valenzuela, JE Soto, P Zarkesh-Ha, M Figueroa - Sensors, 2021 - mdpi.com
In this paper, we present the architecture of a smart imaging sensor (SIS) for face
recognition, based on a custom-design smart pixel capable of computing local spatial …

A 0.075 mm2 BJT-based temperature sensor with a one-point trimmed 3σ inaccuracy of±0.97° C from− 40° C to 120° C

X Lai, Z Niu, B Wang, L Li - Microelectronics Journal, 2024 - Elsevier
This paper presents a bipolar junction transistor (BJT)-based CMOS temperature sensor for
high accuracy, small-scale area, and low power consumption. A structure with a feedback …

Motion-Based Object Location on a Smart Image Sensor Using On-Pixel Memory

W Valenzuela, A Saavedra, P Zarkesh-Ha, M Figueroa - Sensors, 2022 - mdpi.com
Object location is a crucial computer vision method often used as a previous stage to object
classification. Object-location algorithms require high computational and memory resources …

On-chip smart temperature sensors for dark current compensation in CMOS image sensors

S Xie, AJP Theuwissen - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
This paper proposes various types of on-chip smart temperature sensors, intended for
thermal compensation of dark current in CMOS image sensors (CIS). It proposes four …

[PDF][PDF] Dark current compensation of a CMOS image sensor by using in-pixel temperature sensors

A Abarca, A Theuwissen - Proceedings of the International Image …, 2023 - imagesensors.org
In this paper a novel technique to compensate for dark current of a CMOS image sensor
(CIS) by using in-pixel temperature sensors (IPTSs) is presented. The IPTSs are integrated …

A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses

AM Vasile, A Negut, A Tache, G Brezeanu - Sensors, 2021 - mdpi.com
An EEPROM (electrically erasable programmable read-only memory) reprogrammable fuse
for trimming a digital temperature sensor is designed in a 0.18-µm CMOS EEPROM. The …

Suppression of spatial and temporal noise in a CMOS image sensor

S Xie, AJP Theuwissen - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
This paper presents methodologies for suppressing the spatial and the temporal noise in a
CMOS image sensor (CIS). First of all, it demonstrates by using a longer-length column bias …

A CMOS image sensor with thermal sensing capability and column zoom ADCs

S Xie, AJP Theuwissen - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
This paper presents a CMOS image sensor (CIS) with a zoom ADC, to quantize in-pixel
temperature sensors, as well as for faster readout speed of the image pixels while …

In-Pixel Temperature Sensors with an Accuracy of±0.25 C, a 3σ Variation of±0.7 C in the Spatial Domain and a 3σ Variation of±1 C in the Temporal Domain

A Abarca, A Theuwissen - Micromachines, 2020 - mdpi.com
This article presents in-pixel (of a CMOS image sensor (CIS)) temperature sensors with
improved accuracy in the spatial and the temporal domain. The goal of the temperature …

A 840-µm2 low-power all-MOS temperature sensor front-end with real-time voltage calibration

H Li, Z Yang, D Kong, A Yin, J Peng… - IEICE Electronics …, 2024 - jstage.jst.go.jp
This letter presents an 840 µm2 557nW temperature sensor front-end designed for system
on chip (SoC) thermal monitoring. The circuit is implemented using MOS transistors …