Image scaling module and image scaling method based on AXI4-STREAM interface

• Main Authors: JIANG TONGYUAN, JIANG YUANSONG, XIA PING, ZHU SHILUN
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention relates to an image scaling module based on an AXI4-STREAM interface and an image scaling method. The module comprises an input interface, a first storage unit, a scaling processing unit and an output interface, the input interface adopts an AXI4-STREAM interface to realize connection with a front-end IP (Internet Protocol), and the output interface is connected with a rear-end IP through the AXI4-STREAM interface; the first storage unit comprises at least three cache spaces which are marked as a first cache, a second cache and a third cache; the first cache, the second cache and the third cache sequentially cache image data output by the front-end IP in a circulating storage mode; after the data of the current cache is received, the scaling processing unit carries out image scaling processing on the image data in the current cache and the image data in the previous cache by using a bilinear interpolation algorithm; and after the data of the next cache is received, the scaling processing unit mu