Buffer-Based Image Playback During Capture
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Solution Overview
Problem
After high-speed or infinite continuous photographing, existing image photographing apparatuses require images to be completely stored before allowing a change to playback mode, preventing immediate review of captured images.
Innovation Solution
A device with a photographing unit, image processing unit, buffer, storage unit, and digital signal processing unit that stores and processes images, allowing immediate display of captured images from the buffer during photographing, and transitioning to storage-based display if images are found, using index information for images not yet stored.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If images are stored completely before allowing playback mode change, then data integrity and reliability are improved, but the time delay before image review increases
Solution Approach 1:
The buffer stores image signals in advance during the photographing process, preparing data for future playback before the storage unit completes writing. This preliminary action allows the system to switch to playback mode immediately without waiting for complete storage, resolving the contradiction between data integrity and review time delay
Solution Approach 2:
The system separates the storage process into two independent parts: the buffer for immediate temporary storage and the storage unit for permanent storage. This segmentation allows playback to occur from the buffer while the storage unit continues writing, eliminating the waiting time while maintaining data reliability through dual-storage architecture
2Productivity
If high-speed continuous photographing is performed, then productivity is improved, but the ability to review images immediately deteriorates
Solution Approach 1:
During high-speed continuous photographing, the buffer continuously pre-stores image signals as they are captured. This preliminary storage action ensures that even at high speeds, images are ready for immediate playback review without requiring completion of the storage process, maintaining both productivity and immediate review capability
Solution Approach 2:
The buffer acts as an intermediary between the high-speed photographing unit and the slower storage unit. It temporarily holds image signals during rapid capture, enabling immediate playback review while the storage unit processes data at its own pace, thus resolving the contradiction between photographing speed and review immediacy
Data Source
AI summary
A device includes a photographing unit, an image processing unit, a buffer, a storage unit, and a digital signal processor. The buffer stores index information to be assigned to at least one image signal obtained by the photographing unit, file name and storage path information to be provided to the at least one image signal when the at least one image signal is stored in the storage unit. The digital signal processor displays the most recently stored image signal when a display input instruction to display a currently captured image is received, searches the storage unit when an input instruction to display previously-captured images is additionally received, if a corresponding image file is found in the storage unit, displays the found image file, and if the corresponding image file is not found in the storage unit, displays an image signal stored in the buffer using the index information.