Camera Movement Control Using Time-Speed Magnification Curves
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Solution Overview
Problem
Existing camera movement control methods in game technologies lack stability and continuity, leading to suboptimal user experiences during directed camera operations in game videos.
Innovation Solution
A method and apparatus for camera operation control that determines a target parameter based on multiple frames within a time slice, using a time-speed change magnification curve to adjust camera speed, ensuring smooth and stable movement and scaling between time slices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If camera movement control is implemented in directed mode, then user experience is improved, but camera stability and continuity deteriorate
Solution Approach 1:
The patent pre-calculates target parameters (position, scaling, rotation) for each time slice before camera movement begins. This preliminary computation of trajectory points ensures that the camera has stable, pre-determined targets to follow, preventing instability during actual movement execution in directed mode.
Solution Approach 2:
The patent dynamically adjusts camera parameters within each time slice by computing intermediate target parameters between start and end points. This dynamic calculation allows the camera to smoothly adapt its position, scaling, and rotation throughout the time slice while maintaining overall stability and continuity across slices.
2Manufacturing precision
If camera operation control is implemented, then movement precision is improved, but operation continuity deteriorates
Solution Approach 1:
The patent pre-calculates target parameters for each time slice in advance, establishing precise movement goals before execution. This preliminary computation ensures that each camera operation has a well-defined target, improving movement precision while the continuous nature of pre-calculating across slices maintains operation continuity.
Solution Approach 2:
The patent ensures continuous camera operation by computing target parameters that span across time slice boundaries and by interpolating intermediate parameters within slices. This continuous calculation approach prevents gaps or discontinuities in camera movement, maintaining smooth operation throughout the directed mode sequence.
Data Source
AI summary
Some aspects of the disclosure provide a method for camera operation control in an electronic device. The method includes obtaining, based on a plurality of frames associated with a target time slice, a first target parameter to be met by a camera of a virtual camera system in the target time slice. Then, the method includes determining a target operation speed of the camera in the target time slice at least partially based on the first target parameter and a time-speed change magnification curve, and controlling the camera to operate based on the target operation speed. Apparatus and non-transitory computer-readable storage medium counterpart embodiments are also contemplated.