Video Summarization via Frame Rate Modification

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Solution Overview

Problem

Users face challenges in efficiently selecting and sharing interesting parts of recorded videos due to the time-consuming and complex process of video editing, especially for amateur videographers who struggle to determine which parts of a lengthy video are most engaging.

Innovation Solution

A method and system for generating a summarized video by modifying the frame rate of a video file, which involves receiving a video, identifying frames, extracting a subset of frames separated by a predetermined length, and presenting the edited video at an effective frame rate, allowing for the creation of a summarized video that can be stored and shared.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional video editing methods are used to select and share interesting parts of a video, then the user can create a customized video, but the process is extremely time consuming and difficult to master

Engineering Contradiction:
Improveease of video editingVSAvoidtime required for video editing
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs automatic video summarization without requiring user intervention in the editing process. The hardware processor automatically identifies and extracts key frames, generates the summarized video, and prepares it for sharing, allowing the video content to serve itself rather than requiring manual editing by the user.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system extracts only the essential frames needed to represent the video content by identifying key moments and removing redundant frames. This extraction process automatically creates a condensed version of the video that retains the most important information while eliminating the time-consuming manual selection process.

Inventive Principle:
Principle #2Taking out (Extraction)

2Measurement precision

If the user reviews the entire video to determine interesting parts, then accurate selection is possible, but the process becomes frustrating and time consuming for lengthy videos

Engineering Contradiction:
Improveaccuracy of frame selectionVSAvoidtime to review video
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary analysis of the video content before final frame selection by first identifying potential key moments and pre-processing the video data. This preliminary action allows the system to make accurate frame selections without requiring the user to watch the entire video, as the processing has already been done in advance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces the mechanical process of manual video review with an automated computational algorithm that analyzes video content, identifies key moments, and selects frames based on programmed criteria. This substitution of mechanical review with automated analysis maintains selection accuracy while eliminating the time requirement for human review.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If the video is played back at normal frame rate, then all details are visible, but the viewing time is extended and less engaging for quick sharing

Engineering Contradiction:
Improvedetail retention in videoVSAvoidvideo playback duration
Core Design Contradiction:
Loss of informationVSDuration of action of moving object

Solution Approach 1:

The system segments the video into discrete key frames that represent important moments, rather than playing back the continuous video stream. By dividing the video content into essential segments and removing redundant portions, the system maintains the important information while significantly reducing the overall playback duration to make it more engaging for quick sharing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies partial action by selecting only a subset of frames necessary to convey the video's essence, rather than playing back every frame. This partial reproduction of the video content maintains sufficient detail for engagement while reducing the total playback time to an appropriate duration for quick sharing.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS12262158B2Methods, systems, and media for generating a summarized video using frame rate modification
Publication Date: 2025.03.25 GOOGLE LLC
  • US12262158B2 patent drawing
  • US12262158B2 patent drawing
  • US12262158B2 patent drawing

AI summary

Methods, systems, and media for generating a summarized video using frame rate modification are provided. In some embodiments, a method for editing a video is provided, the method comprising: receiving, using a hardware processor, a video file; identifying a plurality of frames at a playback frame rate from the video file; generating an edited video file by extracting a subset of the plurality of frames, wherein the extracted frames in the subset of the plurality of frames are separated by a predetermined length in the plurality of frames and wherein extracting the subset of the plurality frames modifies a frame rate of at least a portion of the video file to an effective frame rate; storing the edited video file; and presenting the edited video file at the playback frame rate.