Special effect transforming method of video image

Abstract

The invention discloses a special effect transformation process of video images. The invention produces the second video image with special effect through intercepting parts of image in the first video image, and forms the second video image which is approximate to the second shooting effect, which comprises establishing an image marquee in the first video image, building up different image marquees in at least two frame images of the first video image, and taking out the image data in the image of the first video image to transform the image of the second video. The invention is provided with television images with standard definition which have the effects of variable-focus, tracking, shot rotation and image inverting and the like through appropriately processing the television images with high definition which are shot by a camera with high definition, realizes the SDTV broadcast of the HDTV programs, and effectively solves the resource waste problem existing in the making process of the HDTV programs. The difficulties in the early-period television program shooting is reduced and simplified through utilizing the process of later-period treatment.

Description

technical field [0001] The invention belongs to the field of video image processing, and relates to a video image special effect transformation method, which is a transformation processing method for intercepting an image from a first video image and generating a second video image with a certain special effect. In particular, a method of converting HDTV images to SDTV images with special effects. Background technique [0002] The image resolution of HDTV (High Definition Television, referred to as "HDTV") is generally 1920×1080, and includes 1280×728 and 1440×1080. Standard Definition Television (SDTV, Standard Definition Television, referred to as "SDTV") is based on the TV program standard developed and widely used in the middle of the 20th century. Its resolution adopts 720×480 (NTSC) according to the standards of different countries and regions. , used in the United States, Japan, etc.), 720×576 (PAL, European standard, and also the standard used in my country). HDTV i...

AI Technical Summary

Problems solved by technology

[0005] 1. There is a problem of waste of resources when HDTV images produced in high definition are converted to SDTV images for broadcasting;

[0006] 2. Due to the timeliness of program shooting, photographers are often not allowed to make any preparations, leaving a lot of regrets outside the lens. Taking the shooting of high-speed moving objects as an example, the photographer must keep up with the object, and often fail to follow the shot, The problem of uneven tracking;

[0007] 3. In some direct TV programs, there is no possibility of second shooting. When a high-definition camera is used to shoot a picture with a larger scene, the details cannot be displayed clearly enough.

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