Image Display Apparatus Idle Period Date Sorting
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Solution Overview
Problem
Existing image display systems require significant time to analyze photographing date and time information from Exif format image files, leading to user wait times during date sorting displays, especially with large numbers of files.
Innovation Solution
An image display apparatus that acquires photographing date and time information beforehand when no user operation is detected, storing it for subsequent sorting, allowing for immediate date sorting without the need for real-time tag analysis, or using a File Allocation Table timestamp if the information is not stored.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If photographing date and time information is acquired from Exif tags of all image files for date sorting display, then accurate date sorting is achieved, but user wait time increases significantly
Solution Approach 1:
The system performs preliminary acquisition of photographing date and time information from Exif tags during idle periods when no user operation is detected. This pre-processing stores the date information in advance, so when date sorting display is subsequently requested, the information is already available, eliminating the need for real-time tag analysis and significantly reducing user wait time while maintaining accurate date sorting
2Speed
If photographing date and time information is pre-acquired and stored, then date sorting speed is improved, but device complexity increases
Solution Approach 1:
The system establishes a timing determination mechanism that detects when no user operation occurs and triggers preliminary acquisition of date information from Exif tags. A storage component pre-stores this information in association with each image file. When date sorting is requested, the system retrieves pre-stored information instead of analyzing tags in real-time, achieving fast sorting without complex real-time processing
Solution Approach 2:
The system uses idle periods automatically detected through the timing determination device to perform self-service preprocessing of date information. During these idle times, the system autonomously acquires and stores photographing date and time information without user intervention, preparing data for future sorting operations and reducing the computational burden during actual sorting
3Loss of information
If tag analysis is performed for each image file, then complete photographing information is obtained, but processing time increases
Solution Approach 1:
The system performs tag analysis in advance during idle periods when no user operation is detected. The photographing date and time information is extracted from Exif tags and stored in association with each image file before the user requests sorting. This preliminary action ensures complete information is captured while the processing occurs during otherwise wasted idle time, not affecting user experience
Data Source
AI summary
An image display apparatus comprising:a first storage device which stores an image file including an image and the photographing date and time information of the image;an operation device which performs a predetermined operation;a timing determination device which makes a determination whether or not it is the timing at which no operation occurs on the operation device;a photographing date and time information acquisition device which acquires the photographing date and time information from the image file stored in the first storage device when a determination is made that it is the timing at which no operation occurs on the operation device;a second storage device which stores the photographing date and time information acquired by the photographing date and time information acquisition device associated with the image file;a display device which displays the image within the image file; anda display control device which controls the display on the display device by sorting the images within the image file stored in the first storage device based on the photographing date and time information stored in the second storage device.