Image Pickup Apparatus Adaptive Frame Transmission
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Solution Overview
Problem
Image-pickup apparatuses face challenges in transmitting images through low-bit-rate transmission paths, leading to deteriorated image quality due to the need for sub-sampling or compression, which affects frame rates and image clarity.
Innovation Solution
An image-pickup apparatus that includes an image-pickup device, a transmitting unit, and a storage unit, which extracts and stores reduced data frames based on characteristic information and analysis results, allowing for adaptive data reduction and selective transmission of high-quality image data, enabling efficient image transmission over low-bit-rate paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If image data is transmitted through a low-bit-rate transmitting path, then transmission is possible, but image quality deteriorates due to sub-sampling or compression
Solution Approach 1:
The patent implements dynamic switching between two transmitting paths based on the characteristics of image data. The selecting section determines whether to transmit the current frame or a previously stored frame based on motion detection results, creating a dynamic transmission system that adapts to content requirements rather than using a fixed transmission method
Solution Approach 2:
The transmitting system is divided into two separate transmitting paths: one for high-quality image data and another for low-bit-rate transmitted data. This segmentation allows different types of data to be transmitted through appropriate channels, with the selecting section routing data to the suitable path based on motion characteristics
2Quantity of substance
If sub-sampling is applied to reduce data amount, then transmission through low-bit-rate path becomes possible, but frame rate lowers
Solution Approach 1:
The system performs motion detection and determination in advance before transmission decisions are made. The motion-detecting section and motion-determining section analyze image characteristics beforehand, allowing the selecting section to make informed decisions about which frames to transmit without requiring real-time processing delays
Solution Approach 2:
When motion is detected in the current frame, the system transmits a copy of a previously stored frame instead of the current frame. This copying approach maintains frame rate by reusing existing data rather than transmitting every captured frame, reducing data transmission requirements while maintaining visual continuity
3Quantity of substance
If compression and encoding are applied to reduce data amount, then transmission through low-bit-rate path becomes possible, but image quality deteriorates
Solution Approach 1:
The system dynamically selects transmission quality based on motion characteristics. When motion is detected, lower-quality transmitted data is used; when no motion is detected, high-quality stored frames are transmitted. This dynamic approach optimizes the balance between data amount and image quality based on actual content requirements
Solution Approach 2:
Different quality levels are applied to different situations: high-quality stored image data is used when motion is absent, while lower-quality transmitted data is used when motion is present. The selecting section applies the appropriate quality level locally based on the specific frame's motion characteristics
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution maintains high frame rates for moving images and high quality for still images, while optimizing storage capacity and transmission efficiency, ensuring both real-time motion and high-quality still image data can be transmitted effectively.
Implementation Method 1
an image-pickup device for converting light into an electric signal and outputting first image data
Data Source
AI summary
An image-pickup apparatus includes: an image-pickup device for converting light into an electric signal and outputting a first image data; a transmitting unit for successively transmitting the first image data to an apparatus in the exterior of the image-pickup apparatus; and a storage unit for storing a second image data extracted from the first image data per frame unit under a predetermined condition.