Qualcomm. has been granted a patent for a method of filtering decoded video data. The method involves assigning fixed filters to various classes of video blocks, selecting appropriate filters, and generating filter coefficients to enhance pixel filtering in decoded video images. GlobalData’s report on Qualcomm gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Qualcomm, IoT-5G convergence was a key innovation area identified from patents. Qualcomm's grant share as of July 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.
Video data filtering using fixed filter coefficients
The patent US12075037B2 outlines a method and device for filtering decoded blocks of video data, focusing on the assignment and selection of fixed filters for various classes of video blocks. The method involves assigning a set of n fixed filters to different classes of blocks within a current picture of video data. For each class utilizing a fixed filter, a specific filter is selected, and filter coefficients are generated by combining the selected filter's coefficients with a common set of signaled coefficients. The process includes decoding the current block, determining its class, and applying the corresponding filter coefficients to filter at least one pixel of the block.
Additionally, the patent describes mechanisms for determining whether a fixed filter is used for predicting filter coefficients, including the use of flags to indicate this status. It also details the construction of multiple filters and the evaluation of whether all or some sets of filter coefficients are derived from fixed filters. The device, which may be implemented in wireless communication devices such as cellular phones, is equipped with processing units that perform these filtering operations and can encode video blocks prior to decoding. The patent emphasizes the efficiency of using fixed filters to enhance video data processing, potentially improving the quality and performance of video playback and transmission.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
