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Single frame object tracking using thermal imaging

A thermal imaging, object technology, applied in image analysis, image enhancement, image data processing and other directions, can solve problems such as disappearance

Inactive Publication Date: 2019-09-20
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This thermal imprint is visible with a thermal imager, but fades away as heat dissipates

Method used

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  • Single frame object tracking using thermal imaging
  • Single frame object tracking using thermal imaging
  • Single frame object tracking using thermal imaging

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Embodiment Construction

[0029] This disclosure describes various embodiments of a thermal imaging system configured to characterize an object or environment. More generally, applicants have recognized and understood that it would be beneficial to provide a system that acquires and analyzes thermal images of an environment through which one or more objects leaving a thermal signature will move. A specific goal of using certain embodiments of the present disclosure is to characterize an object or environment using thermal imaging information.

[0030] In view of the foregoing, various embodiments and implementations are directed to an apparatus or system having a thermal imager that acquires one or more thermal images of an environment. A processor of the device or system analyzes one of the thermal images to detect thermal signatures from objects that have recently moved through the environment. The processor then extracts the object's past trajectory based on the thermal signature and uses the extra...

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Abstract

A method (400) for estimating a trajectory of an object (58) using thermal imaging, the method comprising the steps of: (i) obtaining (420), using a thermal imager (32), a thermal image (54) of one or more surfaces (50) within an environment (52); (ii) detecting (440), within a single obtained thermal image, a heat signature (56) from an object on the one or more surfaces; (iii) extracting (450), from the single obtained thermal image, a trajectory of the object along the one or more surfaces within the image; and (iv) estimating (460), from the extracted trajectory, a trajectory of the object within the environment.

Description

technical field [0001] The present disclosure is generally directed to methods and systems for estimating the trajectory of an object within an environment using thermal imaging. Background technique [0002] There are many applications for systems capable of tracking the movement of objects within an environment. While some systems track the motion of the subject in real time, others track the movement of the subject in recorded video or images. Methods utilized to track objects within recorded video or images typically rely on analysis of multiple frames or images or comparison of frames to an aggregated background model or reference. [0003] Thus, these systems obtain or access a first frame or image, and then detect objects within that frame or image. The system would then obtain or access a second frame or image, detect the object within the second frame or image, and then compare the location of the object in the first frame to the location of the object in the seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246
CPCG06T7/20G06T2207/10004G06T2207/10048G06T2207/30232G06T2207/30241H05B47/125G01J5/0022
Inventor H.布勒斯R.拉贾戈帕兰
Owner SIGNIFY HLDG BV