Loading…

An asynchronous time-based image sensor

In this paper we propose a fully asynchronous, time-based image sensor, which is characterized by high temporal resolution, low data rate (near complete temporal redundancy suppression), high dynamic range, and low power consumption. Autonomous pixels asynchronously communicate the detection of rela...

Full description

Saved in:
Bibliographic Details
Main Authors: Posch, Christoph, Matolin, Daniel, Wohlgenannt, Rainer
Format: Conference Proceeding
Language:English
Subjects:
Citations: Items that cite this one
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper we propose a fully asynchronous, time-based image sensor, which is characterized by high temporal resolution, low data rate (near complete temporal redundancy suppression), high dynamic range, and low power consumption. Autonomous pixels asynchronously communicate the detection of relative changes in light intensity, and the time from change detection to the threshold crossing of a photocurrent integrator, so encoding the instantaneous pixel illumination shortly after the time of a detected change. The chip is being implemented in a standard 0.18μm CMOS process and measures less than 10×8mm 2 at 304×240 pixel resolution.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2008.4541871