Image Data Transmission Recoding for Upload Efficiency
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Solution Overview
Problem
The existing methods for sharing pictures over the Internet are inefficient due to large file sizes of high-resolution photos, leading to time- and traffic-consuming uploads, and not all formats are supported by cellphones, resulting in a poor user experience.
Innovation Solution
A picture data transmission method that recodes images to reduce file size while maintaining quality, using formats like WEBP or HEVC, and selectively sends the original or recoded images based on pre-set quality thresholds, with corresponding reverse recoding on the receiving end to restore the original image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pictures are transmitted in original high-resolution format, then picture quality is maintained, but file size becomes large causing time- and traffic-consuming uploads
Solution Approach 1:
The patent applies parameter changes by converting pictures between different formats (JPEG, PNG, WEBP, HEIC, HEVC) based on device capabilities and transmission requirements. The system adjusts compression parameters dynamically to achieve optimal balance between file size and quality, selecting appropriate quality thresholds for recoding to reduce upload time while maintaining acceptable picture quality.
2Loss of time
If pictures are recoded to reduce file size, then upload time is reduced, but picture quality may deteriorate
Solution Approach 1:
The patent implements partial action by applying recoding only when necessary - specifically when the sending device determines that quality thresholds are exceeded or when file size optimization is needed. The system performs selective recoding at different quality levels (e.g., 80%, 60%, 40%) based on the receiving device's capabilities and network conditions, rather than always recoding or never recoding.
Solution Approach 2:
The system dynamically adjusts recoding parameters based on real-time conditions including receiving device type (smartphone, tablet, PC), supported formats, network bandwidth, and picture importance. The quality threshold and target format are determined dynamically through negotiation between sending and receiving devices, allowing optimal adaptation to varying conditions.
3Measurement precision
If original picture format is used, then picture quality is preserved, but compatibility with different cellphone formats is limited
Solution Approach 1:
The patent implements universality by supporting multiple picture formats (JPEG, PNG, WEBP, HEIC, HEVC) and enabling automatic format negotiation between sending and receiving devices. The system can convert pictures to various formats based on the receiving device's capabilities, ensuring broad compatibility across different cellphone types while maintaining quality through appropriate format selection and recoding parameters.
4Quantity of substance
If high compression is applied to reduce file size, then network resources are saved, but picture quality deteriorates significantly
Solution Approach 1:
The system dynamically selects compression levels based on multiple factors including network bandwidth, picture importance, receiving device capabilities, and user preferences. Rather than applying fixed high compression, the system adjusts compression ratios in real-time, using higher quality settings for important pictures or high-bandwidth connections, and lower settings for less critical images or constrained networks.
Solution Approach 2:
The patent changes compression parameters dynamically by selecting different quality thresholds (80%, 60%, 40%) and target formats based on the specific transmission context. The system negotiates optimal parameters between sending and receiving devices, allowing flexible adjustment of data volume versus quality trade-offs rather than applying uniform high compression.
Data Source
AI summary
A picture data transmission method and device are disclosed in the present invention. The picture data transmission method comprises: recoding a first picture to be transmitted, by a picture data sending terminal, to obtain a second picture, wherein the file size of the second picture is smaller than that of the first picture, and a quality difference between the second picture and the first picture is less than a pre-set threshold; and selecting one of the first picture and the second picture according to quality values of the first picture and the second picture and sending the selected picture to a picture data receiving terminal. According to the present invention, pictures can be recoded to obtain pictures with a small amount of data for data transmission, without affecting the picture quality, thereby saving network resources and reducing storage pressure.