High-resolution trilinear color TDI CCD image sensor

M. Suhail Agwani; James Miller

doi:10.1117/12.236117

25 March 1996 High-resolution trilinear color TDI CCD image sensor

M. Suhail Agwani, James Miller

Proceedings Volume 2654, Solid State Sensor Arrays and CCD Cameras; (1996) https://doi.org/10.1117/12.236117
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States

Abstract

We have developed a 6032 element, 32 stage Tri-linear Time Delay and Integration Focal Plane Array for high resolution color imaging applications. The sensor offers an improvement of a factor of 10 over comparable line scan CCD sensors. The imager architecture utilizes three individual TDI arrays, with a new multi-layer dielectric interference film color filter that helps achieve accurate spectral separation in the three primary color bands centered at 450 nm, 550 nm and 650 nm respectively. We have also incorporated in the sensor a new programmable responsivity mechanism. This is achieved by an on-chip imaging area size selection mechanism. The sensors operate in the time-delay-and-integration mode. Depending on the level of illumination the user is able to dynamically select the number of TDI stages per sensor. The total number of TDI gain stages can be selected in blocks of 32, 16, 8, or 4. This property provides improvement in the dynamic range of the sensor by extending the response of the CCD over a wide range of illumination levels. Depending on the light energy incident on the sensor, the user can dynamically vary the number of TDI stages used for integrating an incident scene. The result is a programmable responsivity depending on the level of incident illumination. Such a technique optimizes the performance of the CCD color sensor. Given the resolution, speed, sensitivity and the dynamic range, this sensor is suitable for a variety of color imaging applications including multi-media, document scanning, pre-press scanning, medical and machine vision.

Citation Download Citation

M. Suhail Agwani and James Miller "High-resolution trilinear color TDI CCD image sensor", Proc. SPIE 2654, Solid State Sensor Arrays and CCD Cameras, (25 March 1996); https://doi.org/10.1117/12.236117

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

CCD image sensors

Charge-coupled devices

Amplifiers

Color imaging

Image resolution

Imaging systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years