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Method for processing a raw image collected by a bolometer detector and associated device

A technology of bolometers, raw images, applied in the direction of electric radiation detectors, radiation pyrometry, optical radiometry, etc.

Pending Publication Date: 2021-12-24
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0037] However, these two aspects are corrected by two separate procedures, such that a fourth method would benefit from simplifying

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  • Method for processing a raw image collected by a bolometer detector and associated device
  • Method for processing a raw image collected by a bolometer detector and associated device
  • Method for processing a raw image collected by a bolometer detector and associated device

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Embodiment Construction

[0063] will now refer to Figures 1 to 4b The invention is described.

[0064] figure 2 Shown is a detector 1 provided with a plurality of bolometers, denoted Bol(i,j), arranged in n rows (denoted "L i ") and m columns (denoted as "C j ”) in the form of a matrix array.

[0065] The bolometers with index i, j correspond to the bolometers arranged at the intersection of row i and column j.

[0066] Among the bolometers Bol(i,j), one can distinguish the first bolometer Bol 1 (i, j) and the second bolometer Bol 2 (i,j).

[0067] In particular, the bolometers Bol(i,j) are arranged such that the first bolometer Bol 1 (i, j) is turned off, while the second bolometer Bol 2 (i,j) Exposure to the scene to be imaged.

[0068] In other words, only the second bolometer Bol 2 (i,j) are sensitive to (thermal) radiation from the scene to be imaged, while the first bolometer Bol 1 (i, j) not receiving or sensing any radiation from said scene.

[0069] Therefore, according to an as...

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Abstract

The invention relates to a method for processing a raw image characterized by first Pixi(i,j) and second Pix2(i,j) raw measurements collected by first Boli(i,j) and second B012(i,j) bolometers of a set of bolometers Bol(i,j) of a detector, the first bolometers Boli(i,j) being closed off, the method being executed by a computer on the basis of reference measurements PixREF(i,j) that comprise first PixiREF(i,j) and second Pix2REF(i,j) reference measurements associated with the first Boli(i,j) and with the second B012(i,j) bolometers, the method comprising: a) a correlation step between the first raw measurements Pixi(i,j) and the first reference measurements PixiREF(i,j); b) a step of correcting the raw image, which comprises computing corrected measurements Pixcor(i,j) of a corrected image for each bolometer Bol(i,j) on the basis of the reference measurements PixREF(i,j) and of the result of step a).

Description

technical field [0001] The invention relates to a method for processing raw images collected by a detector provided with a matrix array of bolometers. The processing method according to the invention is especially aimed at correcting inhomogeneities caused by dispersions in the characteristics of the detector's bolometers. [0002] The invention also relates to a computer program enabling all the steps of the method according to the invention to be implemented. [0003] The invention finally relates to a detector comprising a bolometer and a computer implementing the computer program. Background technique [0004] Infrared detectors (or imagers) known from the prior art generally comprise bolometers organized in a matrix array of n rows and m columns. [0005] These scene temperature-sensitive bolometers experience a change in electrical resistance when they are exposed to the scene to acquire images. In other words, the current flowing in each bolometer depends on the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G01J5/00
CPCG01J5/00G01J2005/0077G06T5/90G01J5/20G01J5/80G01J5/064G01J5/06G01J5/22G01J2005/202
Inventor L.基耶西
Owner SCHNEIDER ELECTRIC IND SAS