Image Sensor Data Extraction for Power Reduction
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Solution Overview
Problem
Image sensors face high power consumption due to the need for large source voltage and increased data transmission rates with higher pixel counts, which complicates the acquisition of high-quality images.
Innovation Solution
An image processing method and apparatus that obtain visual information from an image, generate valid data by excluding occluded regions and transforming image regions based on object position, and transmit only the necessary data to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels of the image sensor is increased to provide high-quality images, then the data transmission rate has to be increased, but this increases the power consumption
Solution Approach 1:
The patent extracts and transmits only the valid data portions of the image (regions containing actual objects or changes) while excluding invalid data portions (occluded regions, blank areas). This selective extraction reduces the total data transmission volume without compromising the quality of transmitted image content, thereby lowering power consumption while maintaining effective image quality.
Solution Approach 2:
The patent segments the image data into valid and invalid portions based on visual information analysis. By dividing the image into meaningful segments (occluded regions, regions with objects, regions with pixel value changes) and selectively processing only the necessary segments, the system reduces overall data transmission requirements while preserving essential image quality information.
2Measurement precision
If a large source voltage is applied to the image sensor to obtain high-quality images, then the image quality is improved, but the power consumption increases
Solution Approach 1:
The patent extracts only the essential visual information from the captured image data, identifying and transmitting only the valid portions that contain meaningful content. This extraction approach allows the system to achieve effective image quality with reduced data transmission, thereby compensating for the high power consumption during image capture by reducing power consumption during data transmission.
3Measurement precision
If the data transmission rate is increased to maintain image quality with higher pixel counts, then the image quality is preserved, but the power consumption in data transmission increases
Solution Approach 1:
The patent applies extraction by identifying and removing invalid data portions (occluded regions, regions without meaningful content) from the image data before transmission. This results in a reduced data set that maintains the essential visual information quality while requiring lower transmission rates and consuming less power during data transmission to the host device.
Solution Approach 2:
The patent segments the image data into valid and invalid regions using visual information such as depth data, position information, and pixel value changes. By processing and transmitting only the segmented valid portions, the system maintains image quality effectiveness while reducing the overall data transmission rate and associated power consumption.
Data Source
AI summary
Disclosed is an image processing method and apparatus. The image processing method includes obtaining visual information related to an object in an image, generating valid data from the image based on the visual information, and transmitting the valid data.