Camera Metadata Encoding for Video Editing and Playback
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Solution Overview
Problem
Conventional camera devices are limited in processing and utilizing metadata for moving images, restricting their functionality beyond playback, such as editing and supplementary functions.
Innovation Solution
A camera device and method that acquires and stores metadata, including shooting time and thumbnail images, alongside moving images, enabling editing and displaying supplementary functions during playback, utilizing a camera, image signal processor, application processor, and storage unit to encode and display metadata with moving images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If metadata is stored alongside moving images for editing and supplementary functions, then functionality and adaptability are improved, but device complexity and data management requirements increase
Solution Approach 1:
The patent segments the camera system into distinct functional modules: camera for image acquisition, image signal processor for frame processing and metadata generation, application processor for encoding and storage coordination, and storage unit for data retention. This segmentation allows each component to handle specific tasks independently, managing complexity while enabling comprehensive metadata functionality for editing and supplementary operations.
2Loss of information
If metadata including shooting time and thumbnail images is generated and stored for every frame, then information completeness is improved, but data volume and processing requirements increase
Solution Approach 1:
The patent extracts and stores only essential metadata elements (shooting time, thumbnail images, and relevant camera parameters) rather than all possible image data. The image signal processor generates thumbnails and timing information selectively, and the application processor stores these extracted metadata components alongside moving images, maintaining information completeness while controlling data volume.
Solution Approach 2:
The patent creates simplified copies of image data in the form of thumbnail images rather than storing full-resolution frames as metadata. These thumbnail copies provide sufficient visual reference for editing and supplementary functions while occupying minimal storage space compared to original image data.
3Measurement precision
If the camera processes and stores metadata for every frame, then measurement precision and processing capability are improved, but productivity and processing speed may be reduced
Solution Approach 1:
The patent applies partial action by processing only the necessary metadata components for each frame rather than performing exhaustive analysis on all image data. The image signal processor generates essential metadata (timing, thumbnails, key parameters) without conducting complete image processing, and the application processor stores these partial results, achieving sufficient processing precision while maintaining high processing speed and productivity.
Data Source
AI summary
An apparatus and method generate and store metadata in a moving image shooting mode for use in playing and editing the moving image. The moving image processing method of the apparatus equipped with a camera includes acquiring images at every frame period in a moving image shooting mode; generating metadata of the images; encoding the images into the moving image; storing the moving image with the metadata; and displaying a specific metadata selected among the metadata as supplementary functions of the moving image in a moving image playback mode.