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Non-uniformity correction techniques for infrared imaging devices

An infrared imaging and pixel technology, applied in image communication, color TV parts, TV system parts and other directions, can solve problems such as mechanical failure, difficulty in implementation, increase in device size and cost, etc.

Active Publication Date: 2014-06-18
FLIR SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, this shutter is prone to mechanical failure and has potential non-uniformities (caused, for example, by temperature variations or other factors), which make it difficult to implement
Furthermore, in applications where an infrared imaging device with a small form factor is desired, the shutter can increase the size and cost of the device

Method used

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  • Non-uniformity correction techniques for infrared imaging devices
  • Non-uniformity correction techniques for infrared imaging devices
  • Non-uniformity correction techniques for infrared imaging devices

Examples

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Embodiment Construction

[0028] figure 1 An infrared imaging module 100 (eg, an infrared camera or an infrared imaging device) configured to be implemented in a host device 102 according to an embodiment of the present disclosure is shown. In one or more embodiments, the infrared imaging module 100 may be implemented with a small form factor according to wafer level packaging techniques or other packaging techniques.

[0029] In one embodiment, infrared imaging module 100 may be configured to be implemented in a small portable host device 102, such as a mobile phone, tablet computing device, portable computing device, personal digital assistant, visible light camera, music player, or any other Appropriate mobile device. In this regard, infrared imaging module 100 may be used to provide infrared imaging functionality to host device 102 . For example, infrared imaging module 100 may be configured to capture, process, and / or otherwise manage infrared images and provide the infrared images to host devic...

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Abstract

Various techniques are disclosed for performing non-uniformity correction (NUC) for infrared imaging devices. Intentionally blurred image frames may be obtained and processed to correct for FPN (e.g., random spatially uncorrelated FPN in one embodiment) associated with infrared sensors of the infrared imaging device. Intentionally blurred image frames may be used to distinguish between FPN associated with the infrared sensors and desired scene information. Advantageously, such techniques may be implemented without requiring the use of a shutter to perform flat field correction for the infrared imaging device.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 61 / 545,056, filed October 7, 2011, entitled "Non-Uniformity Correction Techniques for Infrared Imaging Devices," which is incorporated by reference in its entirety here. [0003] This application also claims the benefit of U.S. Provisional Patent Application No. 61 / 495,873, filed June 10, 2011, entitled "INFRARED CAMERA PACKAGING SYSTEMS AND METHODS," by reference Merge it here in its entirety. [0004] This application also claims the benefit of U.S. Provisional Patent Application No. 61 / 495,879, filed June 10, 2011, entitled "INFRARED CAMERA SYSTEM ARCHITECTURES," which is incorporated by reference in its entirety here. [0005] This application also claims the benefit of U.S. Provisional Patent Application No. 61 / 495,888, filed June 10, 2011, entitled "INFRARED CAMERA CALIBRATION TECHNIQUES," which is incorporated by reference in its entir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/33
CPCH04N5/33H04N23/23H04N25/76
Inventor N·霍根斯特恩T·R·赫尔特K·斯特兰德玛P·布朗热B·夏普E·A·库尔特
Owner FLIR SYST INC
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