A fusion method and a fusion system of high dynamic range images

A high dynamic range, fusion method technology, applied in the field of image processing, can solve the problems of missing moving objects, inaccurate detection of the motion state of large moving objects, lack of moving object structure, etc., to achieve improved accuracy, clear target details, and guaranteed The effect of completeness and comprehensiveness

Inactive Publication Date: 2019-02-19
SHENZHEN JIMUYIDA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the above method of optimizing the fusion algorithm is still based on the fusion of multiple LDR images at the pixel or block level to obtain an HDR image,

Method used

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  • A fusion method and a fusion system of high dynamic range images
  • A fusion method and a fusion system of high dynamic range images
  • A fusion method and a fusion system of high dynamic range images

Examples

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Embodiment 1

[0086] Such as figure 1 As shown, a schematic flow chart of a high dynamic range image fusion method according to an embodiment of the present invention. In this embodiment, pedestrians are used as the target for description, including:

[0087] Step 100, perform target detection on each LDR image in the low dynamic range image sequence, obtain all initial detection frames on each LDR image, and obtain corresponding candidate detection frames after expanding each initial detection frame according to a preset ratio , respectively extract the region to be segmented in each candidate detection frame corresponding to each LDR image, segment each region to be segmented, and obtain all segmentation targets in each region to be segmented.

[0088] Step 200: Determine the motion state of each segmented object to obtain the moving objects in all segmented objects, wherein the motion state includes at least any one of disappearance, appearance and continuous motion.

[0089] Step 300: ...

Embodiment 2

[0171] In this example, if Figure 6 As shown, a high dynamic range image fusion system includes: segmentation module, determination module, merging module, clustering module and fusion module;

[0172] The segmentation module is used to perform target detection on each LDR image in the low dynamic range image sequence, obtain all initial detection frames on each LDR image, and obtain corresponding alternatives after expanding each initial detection frame according to a preset ratio. The detection frame extracts the regions to be segmented in each corresponding candidate detection frame from each LDR image, and segments each region to be segmented to obtain all segmentation targets in each region to be segmented; the determination module, It is used to determine the motion state of each segmented object to obtain the motion objects in all segmented objects, wherein the motion state includes at least any one of disappearance, appearance and continuous motion; the merging module...

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Abstract

The invention relates to a fusion method and a fusion system of high dynamic range images. The method comprises the following steps of: performing target detection on each LDR image in a low dynamic range image sequence to obtain an initial detection frame, expanding the initial detection frame according to a preset proportion, extracting a region to be segmented in an alternative detection framefrom the LDR image, and segmenting the region to be segmented to obtain a segmented target; The moving state of the segmented object is judged, and the moving object is merged into a background imageto obtain the segmented image of the moving object. Pixel clustering is performed on the LDR image with the highest exposure quality, a super pixel segmentation image is acquired, and the moving object segmentation image and each LDR image are weighted and fused according to the number of pixels of each super pixel mapped on the moving object in the moving object segmentation image to obtain a high dynamic range image. The invention improves the accuracy of moving object detection and judgment, and makes the moving object in the high dynamic range image clearer.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a high dynamic range image fusion method and fusion system. Background technique [0002] High dynamic range HDR images can be obtained by fusing LDR sequences of low dynamic range images shot in the same scene, which are well consistent with the real details seen by the human eye in the scene, and are used for games, movies, cameras, etc. Many fields. Due to the presence of uncertain moving objects and motion information in this scene, "ghosting" or blurring occurs in the HDR image, which seriously reduces the image quality. [0003] In related technologies, in order to eliminate the "ghost" or blurring phenomenon in HDR images, two methods are mainly adopted: one way is to improve the internal hardware structure of the camera to capture the HDR images in the aforementioned scene in a relatively short period of time. This method greatly increases the cost of the camer...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/008G06T5/50G06T2207/20221
Inventor 姚剑朱吉涂静敏常娟董颖青
Owner SHENZHEN JIMUYIDA TECH CO LTD
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