Quality evaluation method for multi-exposure fusion image simultaneously for dynamic scene and static scene

A technology for fusing images and dynamic scenes, applied in the fields of digital image and digital video processing, and multimedia, it can solve the problems of multi-exposure fusion images that cannot simultaneously evaluate dynamic scenes and static scenes without the objective quality evaluation algorithm of multi-exposure fusion images.

Pending Publication Date: 2020-03-24
方玉明
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Problems solved by technology

There are only a few objective quality assessment methods for evaluating multi-exposure fusion images of static scenes and a few objective quality assessment methods for evaluating multi-exposure fusion images of dynamic scenes, and none of these methods can simultaneously evaluate multi-exposure fusion images of dynamic scenes and static scenes
As far as the present invention is known, there is no objective quality evaluation algorithm for multi-exposure fusion images of dynamic scenes and static scenes at the same time.

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  • Quality evaluation method for multi-exposure fusion image simultaneously for dynamic scene and static scene
  • Quality evaluation method for multi-exposure fusion image simultaneously for dynamic scene and static scene
  • Quality evaluation method for multi-exposure fusion image simultaneously for dynamic scene and static scene

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Embodiment Construction

[0072] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. 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 creative efforts fall within the protection scope of the present invention.

[0073] Wherein, the technical features, abbreviations / abbreviations, symbols, etc. involved in this article are explained, defined / illustrated based on the well-known knowledge / common understanding of those skilled in the art.

[0074] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0075] The process of the present invention is as figure 1 As shown, the specific pro...

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Abstract

The invention relates to a quality evaluation method for a multi-exposure fusion image simultaneously for a dynamic scene and a static scene. The quality evaluation method is characterized by comprising the steps: firstly dividing a fusion image into a region with a larger information amount and a region with a smaller information amount through employing a superpixel segmentation method based onthe structural difference between the multi-exposure fusion image and a source exposure-level sequence image; secondly, based on a Laplace pyramid, respectively calculating quality maps of regions with relatively large information amount and regions with relatively small information amount; and thirdly, calculating the local quality scores of the regions with large information amount and small information amount by adopting an adaptive weighting strategy based on the information theory, and averaging the obtained local quality scores of the regions with large change and small change to obtainthe quality score of the fused image. Experimental results show that the quality evaluation method shows good prediction performance for visual quality evaluation of multi-exposure fusion images of adynamic scene and a static scene.

Description

technical field [0001] The invention relates to a quality evaluation method for multi-exposure fusion images of dynamic scenes and static scenes at the same time, which belongs to the technical field of multimedia, and specifically belongs to the technical field of digital image and digital video processing. Background technique [0002] With the explosive growth of digital media, people's demand for high-quality images is also increasing. However, the dynamic range of brightness captured by ordinary sensors and displays is limited, and it is difficult to reproduce all the dynamic range in the real world. details. High dynamic range image synthesis technology and multi-exposure fusion technology can overcome this defect. High dynamic range image synthesis technology combines a series of image sequences shot at different exposure levels in the same scene into one high dynamic range image by converting the camera response function , in order to be able to display the image on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/136
CPCG06T7/0002G06T7/11G06T7/136G06T2207/20221G06T2207/30168
Inventor 方玉明鄢杰斌曾妍诸汉炜
Owner 方玉明
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