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A Blue Screen Keying Method Based on HSV Color Space and Chroma Key

A color space and chroma key technology, applied in the field of image keying, can solve problems such as difficult to ensure full automation and real-time video keying, difficult overflow pixel removal, color overflow, etc.

Active Publication Date: 2021-10-29
NORTHEASTERN UNIV LIAONING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still problems such as color overflow, dirty channels, edge distortion, etc.
In addition, semi-transparent (gauze) keying is a difficult point in blue-screen keying, and it is difficult to remove all overflow pixels in the translucent part
At present, there is no technology that can solve these problems and difficulties
At the same time, the current keying method is difficult to guarantee full automation and real-time performance of video keying

Method used

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  • A Blue Screen Keying Method Based on HSV Color Space and Chroma Key
  • A Blue Screen Keying Method Based on HSV Color Space and Chroma Key
  • A Blue Screen Keying Method Based on HSV Color Space and Chroma Key

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Embodiment Construction

[0029] The technical scheme adopted by the present invention is to convert the picture from the RGB color space to the HSV color space and remove the blue screen background, and the remaining part generates a mask, such as figure 1 As shown; in the part where the black color of the mask corresponds to the original image, perform chroma key keying in the RGB color space, and generate a Distance image, as shown in figure 2 Shown; synthesized according to the Distance graph. Program flow such as image 3 shown. The technical scheme of the present invention is specifically described as follows:

[0030] Step 1. Obtain the data set by shooting or use local data, that is, the blue screen picture or video to be keyed, convert the picture from RGB color space to HSV color space, perform blue screen background keying, and generate a mask.

[0031] HSV color space such as Figure 4 As shown, its color area distribution is as follows Figure 5 shown. From the HSV color distributio...

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Abstract

The present invention proposes a blue screen matting method based on HSV color space and chroma key, which can accurately remove pixels overflowing from the blue background and translucent material. Convert to the HSV color space and remove the blue screen background, generate a mask for the remaining part, perform chroma keying in the RGB color space on the part of the mask black corresponding to the original image, and generate a Distance map, and synthesize according to the Distance map .

Description

technical field [0001] The invention belongs to the field of image matting methods, in particular to a blue screen matting method based on HSV color space and chroma key. Background technique [0002] The blue screen keying method is to remove the blue background in the pictures or videos taken under the blue screen. There are many blue screen keying methods, including luma key, color key, difference matte, linear color key, etc. But there are still problems such as color overflow, dirty channels, edge distortion and so on. In addition, semi-transparent (gauze) keying is a difficulty in blue-screen keying, and it is difficult to remove all overflow pixels in the translucent part. At present, there is no technology that can solve these problems and difficulties. At the same time, the current keying method is difficult to guarantee full automation and real-time performance of video keying. Contents of the invention [0003] In view of the above problems, the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/194G06T5/50H04N5/262
CPCG06T5/50G06T2207/10016G06T2207/10024G06T2207/20221G06T7/194H04N5/262
Inventor 王斌杨晓春宫明
Owner NORTHEASTERN UNIV LIAONING
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