Thumbnail Generation for Video Recording with Superimposed Items

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Solution Overview

Problem

Conventional moving image recording devices do not guarantee that a frame image with superimposed texts or graphics is used as a representative thumbnail, even if these items are added during image capture.

Innovation Solution

A moving image recording device and method that superimpose items over a moving image based on user input, storing the image with the superimposition items and using the frame with the last change in the superimposed state as a representative thumbnail.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a thumbnail is generated based on camera settings conditions (zoom-in timing or focus lock timing), then the thumbnail generation timing is automatically determined, but there is no guarantee that a frame image with superimposed items is extracted as the representative image

Engineering Contradiction:
Improvethumbnail generation reliabilityVSAvoiduser-friendly thumbnail selection
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system monitors changes in the superimposed state of items (texts, graphics) on frame images and uses this feedback to determine thumbnail generation timing. When a superimposition item is added, modified, or removed, the system detects this state change and automatically selects the current frame as a thumbnail candidate, ensuring that meaningful frames with user-added content are captured.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system automatically identifies and selects frames with superimposed items as thumbnails without requiring manual user intervention. By self-monitoring the superimposition state changes and autonomously determining thumbnail candidates, the system serves itself to resolve the contradiction between automatic determination and user-friendly selection.

Inventive Principle:
Principle #25Self-service

2Productivity

If conventional thumbnail generation methods are used based on camera settings, then the process is simple and automatic, but the thumbnail may not capture the most impressive or meaningful moment when superimposition items are present

Engineering Contradiction:
Improvethumbnail generation efficiencyVSAvoidloss of meaningful content in thumbnail
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system continuously monitors the superimposition state of frame images and uses this feedback information to intelligently determine when to generate thumbnails. This ensures that frames containing user-added superimposition items (which represent meaningful or impressive moments) are captured as thumbnails, preventing loss of important content while maintaining efficient automatic operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the parameter for thumbnail selection from fixed camera settings conditions to dynamic superimposition state conditions. By monitoring whether superimposition items are present or have changed, the system adapts the thumbnail generation timing to capture meaningful moments, thereby preserving important information while maintaining operational efficiency.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9179090B2Moving image recording device, control method therefor, and non-transitory computer readable storage medium
Publication Date: 2015.11.03 AIST SOLUTIONS CO
  • US9179090B2 patent drawing
  • US9179090B2 patent drawing
  • US9179090B2 patent drawing

AI summary

A moving image recording device comprising, an item superimposition unit configured to superimpose a superimposition item over a moving image in accordance with an input from a user, a storage control unit configured to cause a storage unit to store the moving image together with the superimposition item; and a control unit configured to control the storage unit to store information of an image over which the superimposition item has been superimposed in association with the moving image so that the image over which the superimposition item has been superimposed is used as a representative image of the moving image based on a change in a superimposed state of the superimposition item superimposed over the moving image by the item superimposition unit.