Camera Image Transmission with Hybrid Interleaved Data Mode
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Solution Overview
Problem
Camera devices face challenges in capturing images at UHD resolution while photographing moving images in full HD resolution due to difficulties in transmitting continuous UHD image data at the desired time, resulting in shutter lag and inability to acquire images at the desired point in time.
Innovation Solution
A method and apparatus that processes images from a camera to generate display and compression images for each frame, transmitting them in an interleaved data mode using a hybrid scheme, allowing for efficient transmission and storage of UHD resolution images as full HD resolution display images and compressed UHD resolution images, respectively, to achieve zero shutter-lag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the image signal processor transmits continuous UHD resolution image data to the application processor, then the image quality and resolution are improved, but the transmission bandwidth requirement increases and shutter lag occurs
Solution Approach 1:
The image signal processor performs preliminary processing of UHD images into multiple downsampled images at different resolutions before transmission. This preliminary action allows the application processor to immediately display or process at least one of these images without waiting for the complete UHD image processing, thereby reducing shutter lag while maintaining the option to use the full UHD resolution when needed.
2Adaptability or versatility
If the image signal processor generates and transmits multiple processed images for each captured image, then the usability and flexibility are improved, but the data transmission amount increases
Solution Approach 1:
The captured UHD image is segmented into multiple downsampled images at different resolutions (e.g., first downsampled image, second downsampled image, etc.). This segmentation allows the system to transmit and process images in manageable segments, enabling flexible display options while reducing the immediate data transmission burden compared to transmitting only the full UHD image for every operation.
Data Source
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AI summary
A method of transmitting a frame image of a camera, includes: acquiring an image for each frame from a camera upon operation of the camera; generating the acquired image including a display image and compression images transmitting the display image for each frame and transmitting the compression images at a preset frame interval; and displaying the acquired display image and buffering the compression images.