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Systems and methods for enhanced dynamic range infrared imaging

An infrared imaging and thermal infrared imaging technology, which is applied in image enhancement, TV system components, image analysis, etc., and can solve problems such as scene temperature changes that cannot be fully covered

Active Publication Date: 2020-08-11
FLIR SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the temperature variation of the scene may not be fully contained using a single integration time

Method used

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  • Systems and methods for enhanced dynamic range infrared imaging
  • Systems and methods for enhanced dynamic range infrared imaging
  • Systems and methods for enhanced dynamic range infrared imaging

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Embodiment Construction

[0024] figure 1 A block diagram of an infrared (IR) imaging device 100 (eg, a thermal IR imaging device) according to an embodiment of the present invention is shown. IR imaging device 100 includes IR imaging module 110 (eg, thermal IR imaging module), IR imaging module 120 (eg, thermal IR imaging module), processing system 195 (eg, processor), motion sensor 194 , machine-readable medium 195 , memory 196 , display 197 and / or other components 198 .

[0025] In various embodiments, IR imaging modules 110 and 120 are each equipped with a microbolometer FPA or a photon detector FPA. The microbolometer FPA detects IR radiation using the FPA's thermal detectors, which provide the image data for the pixels of the thermal IR image. A microbolometer FPA may have a lower sensitivity, a wider temperature range (eg, a larger dynamic range), and / or a higher temperature range. Microbolometer FPAs can include IR detecting materials such as amorphous silicon (a-Si), vanadium oxide (VO x )...

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Abstract

Various techniques are provided for enhancing the dynamic range of images using two or more thermal infrared (IR) imaging modules. Apparatus and methods provide a first IR imaging module capturing a first image, a second IR imaging module optimized for higher IR irradiance capturing a second image, and detecting saturated pixels of the first image, determining the corresponding A processing system for generating a combined image based on the pixels of the saturated pixels of the first image and based on the unsaturated pixels of the first image and the pixels of the second image. The IR imaging module may be a microbolometer focal plane array (FPA) configured for high gain and a microbolometer FPA configured for low gain. The IR imaging module can be a photon detector FPA and a microbolometer FPA.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to U.S. Provisional Patent Application No. 62 / 171,962, entitled "SYSTEMS AND METHODS FOR ENHANCEDDYNAMIC RANGE INFRARED IMAGING," filed June 5, 2015, the entire contents of which are incorporated herein by reference. technical field [0003] One or more embodiments relate generally to imaging devices, and more specifically to enhancing the dynamic range of images, for example using two or more thermal infrared (IR) imaging modules, while maintaining high signal fidelity across a range of irradiances Spend. Background technique [0004] IR cameras provide thermal IR images using a focal plane array (FPA) that detects IR radiation (eg, thermal IR radiation). For example, the IR detector of the FPA receives thermal IR radiation passing through the optical path of the IR camera, which provides image data for the pixels of the thermal IR image. [0005] For scenes with l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/33H04N5/235H04N5/225
CPCH04N23/45H04N23/741H04N23/23H04N5/33H04N23/667G06T5/92G06T5/50G06T2207/10048G06T2207/20208
Inventor V·L·阮N·霍根斯特恩
Owner FLIR SYST INC