Playback Apparatus Viewpoint Resumption Control
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Solution Overview
Problem
Playback apparatuses for multi-viewpoint and arbitrary viewpoint video content struggle to accurately resume playback from the correct viewpoint after interruptions, leading to confusion for users and potential missed content opportunities.
Innovation Solution
A playback apparatus with a viewpoint information storage unit and control unit that determines whether a user has switched content during interruption, resuming playback from the previously specified viewpoint if not switched, or switching to a second specified viewpoint if switched, ensuring correct viewpoint playback and user notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the playback apparatus automatically resumes from the previous viewpoint after interruption, then the user can quickly continue viewing, but the user may be confused if they viewed other content during interruption and forget the original program type
Solution Approach 1:
The system performs preliminary actions by storing viewpoint information before interruption occurs and detecting user operations during the interruption period. This allows the system to be prepared to restore the correct viewpoint context when playback resumes, preventing user confusion while maintaining quick resumption
Solution Approach 2:
The system implements feedback by detecting user operations during the interruption period and using this information to determine whether to restore the previous viewpoint. The feedback loop ensures that the viewpoint restoration decision is based on actual user behavior, balancing quick resumption with user awareness
2Reliability
If the playback apparatus restores the original viewpoint after interruption, then the viewing experience is maintained, but the user may miss other multi-viewpoint video opportunities or normal broadcasts during the interruption period
Solution Approach 1:
The system applies dynamics by making the viewpoint restoration behavior adaptive rather than fixed. Based on detected user operations during interruption, the system dynamically decides whether to restore the original viewpoint or allow viewpoint switching, thereby balancing viewing experience consistency with service utilization efficiency
3Loss of information
If the playback apparatus provides viewpoint information notification, then user awareness is improved, but the system complexity increases
Solution Approach 1:
The system implements self-service by automatically managing viewpoint information storage and detection of user operations without requiring additional complex control mechanisms. The viewpoint information is self-stored before interruption, and the detection of user operations during interruption enables automatic decision-making, reducing the need for complex external control systems
Data Source
AI summary
A playback apparatus and a playback method are provided that are capable of playing back video from an appropriate viewpoint upon the resumption of the playback of plural viewpoint video content or arbitrary viewpoint video content after the playback thereof is stopped. The record/playback apparatus 1 has a function that plays back a plural viewpoint video or an arbitrary viewpoint video. The viewpoint information storage section 19 stores information about a first viewpoint specified prior to an interruption when the playback of the video is interrupted. Depending on a user's operation instruction action made during the interruption period and the length of the interruption period, the control section 17 selects a first viewpoint or a second viewpoint previously specified for a playback video upon the resumption of the playback of the video and carries out control so as to playback the video at the viewpoint. The control section 17 provides instructions about the viewpoint switching to the viewpoint switching control section 11, and provides instructions to the GUI control section 12 about providing a viewpoint switching notification to a user.