Thumbnail Generation Interval Adjustment for Moving Image Search
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing moving image photographing apparatuses generate a large number of thumbnail images over time, leading to increased search time for desired scenes, as the process of converting representative images into thumbnails is time-consuming and inefficient, failing to meet the user's need for easy and rapid scene searching.
Innovation Solution
An apparatus and method that adjust the time interval between generating thumbnail images in real time during photography, limiting the number of thumbnails by increasing the interval using a Fibonacci sequence or multiplying it by 2k, and selectively deleting earlier or most recent images to maintain a predetermined number, allowing for efficient storage and quick retrieval of desired scenes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If thumbnail images are generated at fixed intervals while photographing moving images, then the number of thumbnail images increases with photographing time, but this leads to increased storage requirements and longer search times
Solution Approach 1:
The patent applies dynamics by making the thumbnail generation interval variable rather than fixed. The control unit dynamically adjusts the time interval between thumbnail generations based on the current photographing time, ensuring that the interval increases as photographing continues. This dynamic adjustment prevents the number of thumbnails from growing linearly with time, thereby reducing storage requirements and improving search efficiency without sacrificing scene coverage.
Solution Approach 2:
The patent changes the parameter of time interval between thumbnail generations from a constant value to a variable that increases with photographing time. By modifying this temporal parameter dynamically, the system optimizes the balance between having enough thumbnails to represent key scenes and limiting the total number to reduce storage burden and search time.
2Loss of information
If thumbnail images are generated continuously during photographing, then scene coverage is improved, but the processing time and storage burden increase significantly
Solution Approach 1:
The patent implements periodic action by generating thumbnails at regular intervals during photographing, but with a twist: the period (time interval) itself increases over time. This modified periodic approach ensures that key scenes are captured initially with shorter intervals, while later scenes use longer intervals, reducing overall processing time while maintaining adequate scene representation.
Solution Approach 2:
The system dynamically adjusts the thumbnail generation rate based on the elapsed photographing time. Early in the photographing session, thumbnails are generated more frequently to capture important scenes. As time progresses, the interval between thumbnails increases, reducing the total number of thumbnails processed and stored, thereby decreasing processing time and storage burden while still maintaining scene coverage.
3Measurement precision
If a large number of thumbnail images are stored to cover all scenes, then search accuracy is improved, but retrieval efficiency decreases due to the large dataset
Solution Approach 1:
The patent extracts only the most essential scene representations by generating thumbnails at increasing intervals over time. This extraction approach captures key scenes during the photographing process without generating excessive thumbnails, thereby maintaining search accuracy for important moments while significantly reducing the total number of thumbnails that need to be searched, thus improving retrieval speed.
Data Source
AI summary
An apparatus and method to generate a thumbnail image in a moving image photographing mode, and storing the generated thumbnail image are disclosed. The apparatus to photograph the thumbnail image generates a thumbnail image at intervals of a predetermined time simultaneously with photographing the moving image. In addition, the apparatus selects a thumbnail image to be preserved and a thumbnail image to deleted from among generated thumbnail images in such a manner that the number of generated thumbnail images does not exceed a predetermined number, thereby limiting the number of generated thumbnail images.