Dynamic Child Frame Positioning in Video Synthesizing Apparatus
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Solution Overview
Problem
Conventional picture-in-picture video systems cannot dynamically adjust the displayed position of the child frame relative to the parent frame, limiting flexibility in synchronization and playback control, especially when the child frame video is played independently.
Innovation Solution
A video synthesizing apparatus that receives data for display including time and area information to determine the appropriate displayed position of the child frame within the parent frame, allowing for dynamic adjustment based on playback time and content changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the child frame is displayed at a fixed predetermined position in the parent frame, then the picture-in-picture function can be implemented, but the displayed position cannot be dynamically adjusted according to video content changes
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple candidate positions for the child frame in advance. These positions are prepared beforehand and stored in the system, allowing the child frame to be quickly switched to appropriate positions based on video content without requiring complex real-time calculation or adjustment mechanisms.
Solution Approach 2:
The patent implements dynamics by enabling the child frame position to change dynamically based on video content. The system transitions from a static fixed position to a dynamic position selection mechanism that adapts to different video scenes, allowing the child frame to be displayed at different positions at different times according to the parent video content.
2Manufacturing precision
If the child frame position is dynamically adjusted according to parent frame video content, then the picture-in-picture display quality is improved, but conventional methods cannot achieve this when child frame playback time is freely changed
Solution Approach 1:
The patent applies preliminary action by associating position information with specific time points in the child frame video data during encoding. The position data is prepared in advance and embedded in the video stream, allowing the playback device to retrieve and apply the correct position at the appropriate time without requiring complex real-time synchronization or calculation mechanisms.
Data Source
AI summary
The invention provides data for display on the display area for a child frame when the child frame is synthesized and displayed on the parent frame in picture-in-picture playback in order to give the displayed area of the child frame in conformity with the video content in the parent frame, as well as providing a video display apparatus etc. for displaying the child frame at an appropriate displayed position using the data for display. A video display apparatus 1 includes: decoders 101 and 103 for decoding two sets of video data; a synthesizer 105 for synthesizing the decoded videos to output; an input unit 108 for commanding display/non-display of the child frame; a processing controller 109 for controlling the operations of decoders 101 and 103 in accordance with the command; and a position designator 110 which receives the command and the data for display and time information and designates the displayed position of the child frame to the synthesizer 105. The position designator 110 determines the displayed position of the child-frame video in accordance with displayable time information of the child-frame video and information on the displayed area or displayable area depending on time, included in the data for display.