Video Compression Segmentation for Partial Frame Editing

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Solution Overview

Problem

Light compressed videos cannot support processes like wiping, enlargement, and reduction that change a part of the frame, as changing a partial packet of a frame results in the entire frame being undecodable, leading to video loss.

Innovation Solution

A video processing system that includes a compression unit to individually compress and packetize video signals for specific ranges, a video processing unit to perform changes on packet groups related to these ranges, and a decoding unit to decode these packet groups individually, allowing for partial changes in compressed videos.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If light compressed video is used, then bandwidth consumption is reduced, but the video cannot support partial frame changes (wiping, enlargement, reduction)

Engineering Contradiction:

Improvebandwidth consumptionVSAvoidsupport for partial frame changes

Core Design Contradiction:

Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The video frame is divided into multiple blocks, and each block is independently encoded and packetized. This segmentation allows individual blocks to be modified without affecting the entire frame, enabling partial frame changes while maintaining compression efficiency and reducing bandwidth consumption.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If uncompressed video is used, then partial frame changes can be supported, but bandwidth consumption increases significantly

Engineering Contradiction:

Improvesupport for partial frame changesVSAvoidbandwidth consumption

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

Different parts of the video frame (blocks) are encoded with different compression characteristics. Blocks that require modification are encoded to facilitate easy updating, while other blocks use standard compression. This local differentiation enables partial frame changes without requiring full uncompressed video transmission.

Inventive Principle:

Principle #3Local quality

3Quantity of substance

If conventional video compression is used, then bandwidth is reduced, but video composition overhead is generated and delay increases

Engineering Contradiction:

ImprovebandwidthVSAvoidvideo composition overhead delay

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

Video blocks are pre-encoded and packetized with metadata that enables direct manipulation without full decoding. This preliminary preparation allows switching and composition operations to be performed on the encoded packets themselves, eliminating the need for time-consuming decode-process-encode cycles and reducing video composition overhead delay.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250159267A1Video processing system, compression apparatus, video processing method and program

Publication Date: 2025.05.15 NIPPON TELEGRAPH & TELEPHONE CORP

AI summary

A video processing system includes a compression unit configured to individually compress and packetize a video signal for each of one or more first ranges that are targets of change in a video and one or more second ranges other than the first ranges, a video processing unit configured to execute a process for performing the change with packet groups related to the first ranges as processing targets, and a decoding unit configured to individually decode a packet group related to the first range and a packet group related to the second range among the packet groups processed by the video processing unit, and can thus change a part of a compressed video.