Multi-image and multi-pixel level geometric correction method for video fusion

A video fusion and geometric correction technology, applied in the field of image processing, can solve the problems of difficult edge stitching, the inability of projection equipment correction to meet fusion and projection, and the high difficulty of video fusion technology, and achieve the effect of eliminating ghosting.

Active Publication Date: 2015-08-26
北京集朗半导体科技有限公司
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Problems solved by technology

[0005] It can be seen from the above that video fusion technology has relatively high difficulty in splicing images, often only relying on the correction of the projection device itself cannot meet the needs of fusion and projectio

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  • Multi-image and multi-pixel level geometric correction method for video fusion
  • Multi-image and multi-pixel level geometric correction method for video fusion
  • Multi-image and multi-pixel level geometric correction method for video fusion

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Embodiment Construction

[0043] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0044] Geometric correction is in the preparation stage of video fusion. The main purposes include: first, to complete seamless splicing between multiple projection images; second, to complete different projections, such as cylindrical projection and spherical projection. Third, store the coordinate data after geometric correction, which is used in video fusion playback.

[0045] figure 1 It is a flowchart of the multi-image multi-pixel level geometric correction method in the video fusion of the present invention, such as figure 1 As shown, the multi-image multi-pixel level geometric correction method in the video fusion includes adaptive division of the projection screen, geometric division of multiple images, independe...

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Abstract

The invention discloses a multi-image and multi-pixel level geometric correction method for video fusion. The method mainly comprises following steps: 1. selecting an area needing to be adjusted and performing rough geometric correction; 2. adjusting the position of each vertex according to geometric partition of projection images so as to move and rotate the images; 3. selecting an area needing to be further finely adjusted, performing correction on a fractional-pixel accuracy level after the image interpolation is amplified, and shrinking the images to reach the original size after the adjustment; and 4. storing the adjusted data for later playing. According to the invention, the projection images output by multiple projectors can be seamlessly spliced at overlapping portions, a double-image phenomenon in an overlapping zone is eliminated, and the whole image looks like the image output by the same projector.

Description

Technical field [0001] The invention relates to the technical field of image processing, in particular to a multi-image multi-pixel level geometric correction method in video fusion. Background technique [0002] With the development of network technology and computer processing technology, videos with higher resolution and larger screen are becoming popular, because higher resolution can provide more details of video content, and larger screen can bring users The immersive viewing effect is as if you are in the whole picture. [0003] In order to achieve larger picture size, clearer picture quality, and brighter projection picture, people have higher and higher requirements for the performance of projectors or display screens, but many kinds of equipment on the market are difficult to reach people. The required performance indicators, so projection fusion technology came into being. It is a multimedia technology, a new technology that has emerged in response to the development of...

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Application Information

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IPC IPC(8): H04N9/31
Inventor 梁小龙李玲贾珅岳大胜王天琪谭吉来
Owner 北京集朗半导体科技有限公司
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