System for generating random motion image video source

Abstract

The invention provides a system for generating a random motion image video source. The system comprises an FPGA and a microcontroller. A bus control module, a storage module, a storage module controller, a test image generating module, a display time sequence control module and an image output module are arranged in the FPGA. The storage module is used for storing a preset random motion image, and the microcontroller is used for generating position information displayed by the random motion image according to a preset random function within a preset time interval and transmitting the position information to the bus control module. The display time sequence control module is used for outputting an image display time sequence according to preset image display parameters, and the storage module controller is used for reading the random motion image. The testing image generating module is used for generating a background image and generating a random motion image video stream according to the background image, the image display time sequence, the random motion image and the position information, and the image output module is used for latching and outputting the random motion image video stream. The system is low in resource consumption and high in operating speed, and does not need to depend on a computer.

Description

technical field [0001] The invention relates to the technical field of video coding and decoding equipment testing, in particular to a system for generating random motion picture video sources. Background technique [0002] In the test of video codec equipment, often need the image video source of random movement. When the resolution of the random motion image is large, for example, the resolution is 1920x1080, the frame rate of the image must be at least 20 frames per second to make people feel the motion effect of the image. The video source that uses hardware to achieve such an effect is mainly realized by reading and writing a large storage unit. Two operations need to be done: 1) Write the image into the storage unit. 2) It takes a long time to read and write the image from the storage unit, and the required storage resources are greater than or equal to 1920*1080*20*24bit=995,328,000bit, which is about 1.2GB. Because of the limited number of images stored, the "rando...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing hardware implementation scheme is realized by reading and writing large storage units, and its disadvantage is that a large number of storage units are required, and the processing time is long

However, the software implementation scheme needs to be processed on a computer and cannot be separated from the computer;

[0004] To sum up, the traditional technology has defects such as high resource consumption, long running time, and software implementation schemes relying on computers.

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