Video Format Metadata Extraction for Bandwidth Reduction

Solution Overview

Problem

The inefficiency in transmitting video sequences due to high bandwidth and power consumption, particularly when handling multiple formats, as existing methods do not effectively manage the transmission of redundant video information.

Innovation Solution

A method and device that preprocess and encode video sequences to generate metadata, allowing for the transmission of a base format and additional formats in a bit stream, enabling efficient reconstruction of multiple formats at the receiver without redundant data transmission, using a preprocessing module and encoder at the transmitter, and a decoder and postprocessing module at the receiver.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple formats of video sequences are transmitted separately, then all formats can be received and used, but bandwidth consumption increases significantly

Engineering Contradiction:

Improvesupport for multiple video formatsVSAvoidbandwidth consumption

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential difference (metadata) between multiple video formats instead of transmitting complete copies of each format. The transmitter identifies the base format and extracts format conversion parameters, transmitting only these parameters along with the base video stream. This allows the receiver to generate additional formats on-demand, dramatically reducing bandwidth consumption while maintaining support for multiple formats.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The transmitter performs preliminary analysis of multiple video formats to identify the base format and pre-calculate the metadata required for format conversion. By preparing the format conversion parameters in advance and embedding them in the transmitted stream, the system enables the receiver to efficiently generate different formats without requiring separate transmissions for each format.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If multiple formats of video sequences are transmitted separately, then all formats can be received and used, but power consumption increases significantly

Engineering Contradiction:

Improvesupport for multiple video formatsVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the essential difference (metadata) between multiple video formats instead of transmitting complete copies of each format. The transmitter identifies the base format and extracts format conversion parameters, transmitting only these parameters along with the base video stream. This allows the receiver to generate additional formats on-demand, dramatically reducing bandwidth consumption while maintaining support for multiple formats.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The transmitter performs preliminary analysis of multiple video formats to identify the base format and pre-calculate the metadata required for format conversion. By preparing the format conversion parameters in advance and embedding them in the transmitted stream, the system enables the receiver to efficiently generate different formats without requiring separate transmissions for each format.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If redundant video information is transmitted, then all formats are available at the receiver, but transmission efficiency decreases

Engineering Contradiction:

Improveavailability of multiple video formatsVSAvoidtransmission efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent extracts only the essential difference (metadata) between multiple video formats instead of transmitting complete copies of each format. The transmitter identifies the base format and extracts format conversion parameters, transmitting only these parameters along with the base video stream. This allows the receiver to generate additional formats on-demand, dramatically reducing bandwidth consumption while maintaining support for multiple formats.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces metadata as an intermediary element that bridges the base video format and target formats. Instead of directly transmitting multiple complete video streams, the system uses metadata containing format conversion parameters as a mediator. This intermediary enables the receiver to efficiently reconstruct different formats from the base stream, improving transmission efficiency while ensuring format availability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10972767B2Device and method of handling multiple formats of a video sequence

Publication Date: 2021.04.06 REALTEK SEMICON CORP

AI summary

A transmitter for handling multiple formats of a video sequence, comprises a preprocessing module, for receiving a first format of a video sequence, to generate metadata of a second format of the video sequence according to the first format of the video sequence and the second format of the video sequence; and an encoder, couple to the preprocessing module, for transmitting the first format of the video sequence and the metadata in a bit stream to a receiver.