Photographing Method for Immediate Low-Resolution Preview
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Solution Overview
Problem
The slow appearance of high-resolution photos on electronic devices with high-pixel cameras affects the user's photographing experience, requiring a wait time of 2-5 seconds before a preview can be displayed.
Innovation Solution
Generate a lower-resolution first image immediately after photographing and a higher-resolution second image over time, allowing for immediate display of the first image upon user request and subsequent replacement with the second image once generated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-resolution camera with tens of millions or hundreds of millions of pixels is used, then the photo resolution and information content are improved, but the photo processing speed and preview appearance time are worsened
Solution Approach 1:
The patent segments the image processing task into two distinct stages: first generating a low-resolution preview image for immediate display, then generating a high-resolution final image for storage. This segmentation allows the system to provide fast feedback to users while maintaining the capability to produce high-quality photos, effectively resolving the contradiction between processing speed and resolution.
Solution Approach 2:
The patent applies preliminary action by first creating a low-resolution preview image before the high-resolution image is fully processed. This preliminary preview image can be displayed immediately to satisfy user feedback needs, while the high-resolution processing continues in the background, thus improving both perceived speed and final quality.
2Measurement precision
If high-resolution photos are generated immediately, then the photo quality is improved, but the preview display time is worsened
Solution Approach 1:
The patent divides the image generation process into two segments: a quick low-resolution preview generation and a subsequent high-resolution generation. This segmentation enables the system to provide immediate feedback (reducing preview display time) while still producing high-quality photos, thus resolving the contradiction between photo quality and display time.
Solution Approach 2:
The patent applies partial action by first generating only the essential low-resolution preview image that provides sufficient visual feedback to the user, rather than waiting for the complete high-resolution image. This partial generation approach reduces the time to display while maintaining adequate photo quality for preview purposes.
3Measurement precision
If only high-resolution images are generated, then the final photo quality is improved, but the user feedback speed is worsened
Solution Approach 1:
The patent segments the image generation into two phases: rapid low-resolution preview generation for user feedback and subsequent high-resolution generation for final quality. This segmentation simultaneously improves both user feedback speed (by providing immediate preview) and final photo quality (by generating high-resolution output), resolving the contradiction between these two requirements.
Solution Approach 2:
The patent performs preliminary action by generating a low-resolution preview image first, which provides immediate user feedback. The high-resolution image generation continues in the background as a subsequent action. This preliminary preview generation significantly improves user feedback speed while the final high-quality image is prepared for storage.
Data Source
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AI summary
This application discloses a photographing method and apparatus, an electronic device, and a readable storage medium, and belongs to the field of communication technologies. The method includes: receiving a photographing input on a target object; in response to the photographing input, generating a first image within a period from a time when receiving the photographing input to a first time and generating a second image within a period from the time when receiving the photographing input to a second time; and in a case that a second input by a user is received before the second time, displaying the first image in response to the second input, and displaying the second image after the second time. Pixels of the first image are fewer than pixels of the second image; and the second time is greater than the first time.