Video stepless zooming method

A video zooming and stepless zooming technology, applied in the field of video processing, can solve the problems of secondary development, high hardware requirements, high fees, etc., achieve the effect of reducing the use of logic resources and supporting stepless zooming out and zooming in

Pending Publication Date: 2020-10-13
艾索信息股份有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a video stepless scaling method, which solves the existing video scaling development problems, such as high hardw

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video stepless zooming method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Embodiment 1:

[0020] This embodiment provides a video stepless scaling method, including the following steps:

[0021] Step 1. Use the parameter configuration module to set the input resolution and output resolution of the video scaling module;

[0022] Step 2, use the input interface to process the video other than the video scaling module into the corresponding input resolution through the parameter configuration module of step 1 and then input the video scaling module;

[0023] Step 3: In the video scaling module, a bilinear interpolation algorithm is used to calculate the video pixel value, and the video scaling pixel value is configured according to the scaling parameters of the parameter configuration module. pixel. (It is preferable to use the coordinates of the pixel, and output the scaled effective pixel according to the video pixel value and the video scaling pixel value.)

[0024] like figure 1 As shown, the video scaling module of this embodiment inclu...

Example Embodiment

[0029] Embodiment 2:

[0030] On the basis of the disclosed solution in Embodiment 1, this embodiment discloses the following technical solutions:

[0031] A video stepless scaling method, comprising the following steps:

[0032] (1) Parameter configuration module, set the input resolution of the video scaling module to 1920x1080, and set the output resolution of the video scaling module to 1280x720;

[0033] (2) Video input interface, video input and output use AXI-STREAM interface (AXI-Stream protocol is a standard interface used to connect two components that need to exchange data, it can be used to connect a host that generates data and a receiver Data slave. Of course, it can also be used to connect multiple masters and slaves. The protocol supports multiple data streams using the same set of shared buses, allowing the construction of more general interconnections similar to routing, wide-narrow bus, narrow-wide bus, etc.) , AXI-STREAM interface includes TREADY signal, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a video stepless zooming method. The video stepless zooming method comprises the following steps: step 1, setting an input resolution and an output resolution of a video zoomingmodule by using a parameter configuration module; 2, processing a video outside the video scaling module into a corresponding input resolution by using an input interface through the parameter configuration module in the step 1, and then inputting the video into the video scaling module; and 3, calculating a video pixel value in the video scaling module by adopting a bilinear interpolation algorithm, configuring a video scaling pixel value according to scaling parameters of the parameter configuration module, and outputting scaled effective pixels by the video scaling module according to thevideo pixel value and the video scaling pixel value. The method can be applied to any FPGA platform after optimization and integration, internal data streams are processed in a full pipeline mode, useof logic resources is reduced, a video pixel point is processed in a single clock period, time delay is at a subtle level, and stepless reduction and amplification are supported.

Description

technical field [0001] The invention relates to the field of video processing, in particular to a video stepless scaling method. Background technique [0002] At present, most video scaling systems use dedicated chips for video scaling or are designed by computers. These methods have poor flexibility, high cost, complex hardware, and poor real-time performance, and cannot meet many application scenarios. [0003] In view of this, it is necessary to provide a video stepless scaling method with a short development cycle to solve the problem of high cost of a video scaling dedicated chip. Contents of the invention [0004] The invention provides a video stepless scaling method, which solves the existing video scaling development problems, such as high hardware requirements, poor real-time performance, high charges, no dynamic configuration, no secondary development, and low development efficiency. [0005] The technical scheme that realizes the object of the present inventio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N19/34
CPCH04N19/34Y02D10/00
Inventor 李锋林宋晓伟刘雄高国强
Owner 艾索信息股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap