Camera Magnified Playback Overlay Mechanism
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Solution Overview
Problem
Existing camera systems struggle to seamlessly playback and magnify specific parts of moving images without disrupting real-time playback, making it difficult for users to efficiently navigate and view detailed areas within a larger image.
Innovation Solution
The camera apparatus processes compressed playback signals, converts them to YUV format, and uses an image processing unit to generate and overlay magnified or reduced images on a display, allowing for real-time magnification and scrolling of moving images by adjusting the zoom bar and OK button inputs, while utilizing a memory circuit and video decoder for efficient image handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera apparatus displays a magnified image during playback, then the user can view detailed areas of the image, but the real-time playback functionality is disrupted
Solution Approach 1:
The display screen is segmented into multiple regions: a first region displaying the magnified image and a second region displaying the reduced whole image. This segmentation allows simultaneous presentation of detailed views and contextual navigation, resolving the contradiction between viewing details and maintaining real-time playback efficiency.
Solution Approach 2:
The patent implements a nested display structure where a reduced whole image is embedded within the display area alongside the magnified image. The reduced image acts as a navigation map that shows the current magnified position, allowing users to maintain spatial context while viewing details, thus preserving real-time playback functionality.
2Ease of operation
If the camera apparatus provides magnification control during playback, then the user can navigate to desired areas, but the operation complexity increases
Solution Approach 1:
The display unit serves multiple functions simultaneously: it displays the magnified image for detail viewing, the reduced whole image for navigation context, and provides visual feedback for current position. This multi-functionality eliminates the need for separate navigation devices, maintaining ease of operation while enhancing navigation capability.
Solution Approach 2:
The reduced whole image acts as an intermediary between the magnified detailed view and the user's navigation intent. It provides a visual map that shows where the magnified region is located within the overall image, simplifying navigation operations by giving users spatial context without requiring complex control mechanisms.
3Measurement precision
If the camera apparatus displays only a magnified image, then the user can see detailed areas, but the user loses context of the whole image
Solution Approach 1:
The patent adds a dimensional layer to the display by incorporating a reduced whole image alongside the magnified image. This creates a multi-scale visualization where users can simultaneously view both detailed local information and global spatial context, preventing information loss while maintaining detail clarity.
Solution Approach 2:
The display implements local quality differentiation by showing a magnified image in one region for detailed viewing while simultaneously displaying a reduced whole image in another region for spatial context. This allows different parts of the display to serve different functional qualities, preserving both detail clarity and spatial context information.
Data Source
AI summary
An embodiment of a camera apparatus includes transferring a compressed playback streaming signal output from a recording medium to a map defined in a memory circuit, decoding the transferred playback streaming signal by a decoder, converting the decoded signal to a YUV signal in an image processing unit, transferring the converted signal to the map as a YUV signal, generating a magnified or reduced image from the YUV signal in the image processing unit, and storing the image on the map, overlaying a magnified or reduced image prepared on the map according to a magnified playback request, and outputting the overlaid image for seeking an output position.