Filtering methods, decryption methods, and encryption methods.

TH2601000925APending Publication Date: 2026-07-13TAKIVAN TO LLC
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Patent Information

Authority / Receiving Office
TH · TH
Patent Type
Applications
Current Assignee / Owner
TAKIVAN TO LLC
Filing Date
2012-07-10
Publication Date
2026-07-13

AI Technical Summary

Technical Problem

The existing H.264 video compression standard lacks appropriate filtering methods for boundaries between Intra Pulse Code Modulation (IPCM) blocks and non-IPCM blocks, leading to degraded image quality due to uniform filter strength application across both types of blocks.

Method used

A filtering method that determines separate quantization parameters for IPCM and non-IPCM blocks, allowing for optimized deblocking filtering by calculating filter strength based on the quantization parameters of both block types, enabling different filter strengths for each block type.

Benefits of technology

This approach improves filtering on boundaries between IPCM and non-IPCM blocks, enhancing image quality by allowing for tailored filter strengths, which was not possible with the standard's uniform filter application.

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Abstract

DEPCT69 A filtering method that performs deblocking filter management within the boundaries between... An IPCM (IntraPulse Code Modulation) block and a non-IPCM block that are adjacent to each other, with... The first quantization parameter determination procedure (S401) performs the determination of the quantization parameters. The first-order TICE procedure for the non-IPCM block and the decision step determine the quantization parameters. The second step (S402) makes a decision to determine the second-order quantization parameters, supporting IPCM blocks and steps. At the decision-making stage, the filtering strength level (S403) was determined using the 1st quantization parameter as follows: The aforementioned second-order quantization parameters and the procedures for managing the removable filter are mentioned. Block (deblocking filter)(S404) at the said boundary, with the said filtering strength level. Included in the calculation;
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