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Method, apparatus and device for expanding dynamic imaging range of digital domain TDI

A dynamic range, digital domain technology, applied in image communication, color TV parts, TV system parts, etc., can solve problems such as incapability of imaging

Inactive Publication Date: 2019-03-08
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a method, device, equipment and computer-readable storage medium for improving the dynamic range of TDI imaging in the digital domain. Problems with Effective Imaging of Targets

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  • Method, apparatus and device for expanding dynamic imaging range of digital domain TDI
  • Method, apparatus and device for expanding dynamic imaging range of digital domain TDI
  • Method, apparatus and device for expanding dynamic imaging range of digital domain TDI

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Embodiment Construction

[0038] The core of the present invention is to provide a method, device, equipment and computer-readable storage medium for improving the dynamic range of TDI imaging in the digital domain. Dynamic Range.

[0039] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] Please refer to figure 1 , figure 1 The flow chart of the first specific embodiment of the method for improving the dynamic range of digital domain TDI imaging provided by the present invention; t...

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Abstract

The invention discloses a method, an apparatus and a device for expanding a dynamic imaging range of digital domain TDI, and a computer readable storage medium. The method comprises the steps that inan imaging process of the digital domain TDI for a target scene, 1-N-level digital domain TDI images are obtained; M imaging quality evaluation indexes are selected to evaluate the 1-N-level digital domain TDI images, and the digital domain TDI images with the maximum index test values, corresponding to the evaluation indexes respectively are extracted, wherein M is greater than or equal to 2; andthe extracted M digital domain TDI images with different maximum index test values are fused to obtain a target fused image. By utilizing the method, the apparatus, the device and the computer readable storage medium provided by the invention, the digital domain TDI images with the advantages in the evaluation indexes are fused to obtain the target fused image capable of displaying a bright target and a dark target in the target scene at the same time, so that the imaging range of the digital domain TDI is expanded.

Description

technical field [0001] The present invention relates to the field of digital domain TDI imaging dynamic range, in particular to a method, device, equipment and computer-readable storage medium for improving the digital domain TDI imaging dynamic range. Background technique [0002] There are differences in the radiance / reflectivity of different targets in the photoelectric imaging target scene, that is, the scene has a certain contrast, which makes the gray value of different targets imaged on the image sensor to be different. In some high-contrast scenes, the imaging dynamic range of the image sensor is usually difficult to meet the requirements, that is, it cannot effectively image brighter and darker objects at the same time, for example, the image of a brighter object saturates the corresponding pixel, or Dark objects are overwhelmed by image noise. [0003] From the above, it can be seen that how to improve the imaging dynamic range of the image sensor is a problem to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/265H04N17/00
CPCH04N5/265H04N17/002
Inventor 兰太吉薛旭成李俊霖
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI