JD has been granted a patent for a method and device to recognize videos using a pre-trained local and global diffusion model. The model learns spatial-temporal representations in the video based on diffusion between local and global representations. GlobalData’s report on JD gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on JD, Automated guided vehicles was a key innovation area identified from patents. JD's grant share as of March 2024 was 32%. Grant share is based on the ratio of number of grants to total number of patents.
Video recognition method using pre-trained lgd model
A recently granted patent (Publication Number: US11967134B2) discloses a method for video recognition using a pre-trained local and global diffusion (LGD) model. The method involves acquiring a video to be recognized and inputting it into the LGD model to determine the category of the video. The LGD model learns a spatio-temporal representation in the video by diffusing between local and global representations. The model consists of cascaded LGD modules, a local and global combination classifier, and a fully connected layer, with each LGD module comprising local and global paths that interact to describe local variation and holistic appearance at different spatio-temporal locations.
Furthermore, the patent details the process of learning local and global representations in parallel based on the video and cascaded LGD modules. The method involves segmenting the video into segments, selecting frames, and inputting them into LGD-2D modules to learn representations. Alternatively, the video can be segmented into segments and input into LGD-3D modules for parallel learning. The LGD-3D modules decompose three-dimensional learning into spatial convolutions and temporal operations. Additionally, the patent includes claims for a server and a computer-readable medium storing a program to implement the video recognition method using the LGD model, highlighting the potential applications and implementations of this innovative technology in various industries.
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