Dual-Stream Camera Recording for Focus-Tracked Close-Up Video
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Solution Overview
Problem
Existing video recording technologies struggle to simultaneously capture both an original video and close-up videos of multiple objects within a frame, leading to suboptimal user experience and limited flexibility in focus tracking.
Innovation Solution
An electronic device with a camera configures two data flows, using distinct flow identifiers to separately encode images from a large and small window, allowing simultaneous recording of an original video and close-up videos, with the ability to switch focus tracking objects and adjust recording settings dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate capture buttons are provided in each preview window for saving still images, then user control flexibility is improved, but device interface complexity increases
Solution Approach 1:
The patent implements a universal recording control that simultaneously controls both the first camera lens and second camera lens. Instead of providing separate capture buttons for each preview window, a single recording control is provided that can start/stop recording for both cameras at the same time, reducing interface complexity while maintaining user control flexibility through coordinated multi-camera operation
2Adaptability or versatility
If multiple cameras are used for simultaneous recording, then shooting versatility is improved, but data processing complexity increases
Solution Approach 1:
The patent segments the video recording system into distinct data flows for the first camera lens and second camera lens, with separate encoding processes for each camera. This segmentation allows independent processing of each camera's data stream while maintaining coordinated control, reducing the complexity of simultaneous multi-camera data processing by treating each camera as an independent but synchronized unit
3Measurement precision
If focus tracking is implemented on moving objects, then recording precision is improved, but system complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring the focus tracking system to automatically identify and track objects of interest before recording begins. The system pre-establishes the tracking algorithms and object detection mechanisms, so when recording is initiated, the focus tracking is already operational and ready to maintain precision on moving objects without requiring complex real-time adjustments during recording
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2A(1)
AI summary
This application provides a shooting method and a related device. The shooting method may be applied to an electronic device disposed with a camera. According to the shooting method, in a shooting scene in which a plurality of shooting objects are in a same frame, the electronic device can perform focus tracking on one of the shooting objects, and perform targeted close-up recording on the shooting object, so as to separately generate an original video and a focus-tracking video. Specifically, the electronic device may allocate a flow identifier to each of data flows of a large preview window and a small preview window, associate different video files and encoders according to different flow identifiers, and match different image effects, thereby implementing recording of an original video corresponding to the large preview window and a close-up video corresponding to the small preview window. In this shooting method, needs of a user for videos in different framing ranges can be met within a same time, thereby improving user experience.