Dual-Stream Camera Recording for Simultaneous Close-Up Video
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Solution Overview
Problem
Existing video shooting technologies struggle to simultaneously capture both original and close-up videos of multiple objects within a frame, leading to user dissatisfaction and suboptimal experience.
Innovation Solution
An electronic device with a camera configures two data flows, using distinct flow identifiers to separately encode image data for large and small windows, allowing simultaneous recording of an original video and close-up videos of selected objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device records only one original video from the large window, then the recording process is simple, but it cannot meet the user's need to capture close-up videos of selected objects
Solution Approach 1:
The patent divides the video recording system into two separate data flows: a first data flow for the large window (original video) and a second data flow for the small window (close-up video). Each data flow is independently configured and processed, allowing the device to capture both wide-angle and close-up shots simultaneously without interfering with each other.
Solution Approach 2:
The patent introduces flow identifiers as intermediaries to distinguish and manage the two data flows. The first flow identifier corresponds to the first data flow (large window), and the second flow identifier corresponds to the second data flow (small window). These identifiers act as mediators that enable the system to differentiate between the two recording streams and process them appropriately.
2Adaptability or versatility
If the electronic device simultaneously records original video and close-up videos using multiple data flows, then it meets diverse shooting requirements, but the data flow management becomes complex
Solution Approach 1:
The patent uses flow identifiers as intermediary elements to simplify the management of multiple data flows. By associating each data flow with a unique identifier (first flow identifier for large window, second flow identifier for small window), the system can automatically differentiate and process the data streams without requiring complex manual configuration or management from the user.
Solution Approach 2:
The patent creates a copy of the video data from the large window to the small window, allowing the same physical camera to generate two different video streams. The small window displays a cropped or zoomed-in portion of the large window's view, and the corresponding video data is copied and processed separately through the second data flow, enabling simultaneous original and close-up video recording.
3Device complexity
If the electronic device uses a single encoder for both large and small windows, then the encoding process is simple, but it cannot differentiate between the two data flows
Solution Approach 1:
The patent segments the encoding process into two independent encoding operations: a first encoder for the first data flow (large window) and a second encoder for the second data flow (small window). This segmentation ensures that each video stream is encoded separately with appropriate parameters, preventing any loss of distinction between the two data flows that would occur if a single encoder processed both streams.
Solution Approach 2:
The patent employs flow identifiers as intermediaries that bridge the camera module and the encoder module. The first flow identifier links the first data flow to the first encoder, and the second flow identifier links the second data flow to the second encoder. These identifiers serve as mediators that ensure the correct data flow is processed by the correct encoder, maintaining data flow distinction throughout the encoding process.
Data Source
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.