Title: Digital encoding algorithm for pixelated detectors

Abstract

A detector for imaging and efficiently digitizing a spatial distribution of photon flux includes pixel circuits that compressively encode pixel values generated by integrated analog to digital converters (ADCs). On-pixel digital compression circuits (DCCs) implement compression to increase continuous frame rate by reducing the number of bits per pixel while keeping quantization error below Poisson noise. Several mapping algorithms for photon-counting and charge-integrating detectors and compact digital logic implementations are presented.

Inventors:

Hammer, Michael P.; Miceli, Antonino; Jacobsen, Chris J.

Issue Date:

2023-08-15

Research Org.:

Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

2222147

Patent Number(s):

11729345

Application Number:

16/887,706

Assignee:

UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N2223/40 - Imaging
G01N2223/413 - sensor array [CCD]
G01N2223/50 - Detectors
G01N23/04 - and forming images of the material

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

G01T1/17 - Circuit arrangements not adapted to a particular type of detector {
G01T1/2928 - {using solid state detectors}

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N5/321 - with video transmission of fluoroscopic images

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DOE Contract Number:  

AC02-06CH11357

Resource Type:

Patent

Resource Relation:

Patent File Date: 05/29/2020

Country of Publication:

United States

Language:

English