Integrated Image Sensor Serial Parameter Extraction
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Solution Overview
Problem
Conventional image sensors in interactive devices require complex hardware and slower data processing due to parallel transmission, burdening micro-controllers with unnecessary data processing, especially in applications where only motion trails are needed, such as in optical mice.
Innovation Solution
An interactive device with a processing module integrated onto a single chip, featuring an image sensor, estimation unit, and transmission interface, which calculates and serially outputs static and motion parameters, reducing the complexity of the control circuit and speeding up image processing by determining and transmitting only necessary image parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If parallel transmission is used to transmit pixel data from image sensor to controller, then data transmission capacity is sufficient, but transmission velocity is slow and hardware structure is complex
Solution Approach 1:
The patent replaces the parallel transmission mechanical system with a serial transmission system. The image sensor integrates a serial transmission interface that directly outputs processed image parameters in serial form, eliminating the need for complex parallel transmission hardware while achieving faster transmission speeds.
Solution Approach 2:
The patent extracts only the necessary image parameters (such as motion vectors, edge information, or feature points) from the complete pixel data using an integrated processing circuit. This extracted parameter set is then transmitted via serial interface, reducing both transmission quantity and hardware complexity while maintaining sufficient data capacity for control operations.
2Loss of information
If conventional image sensor transmits all pixel data to micro-controller, then complete image information is obtained, but processing burden on micro-controller is heavy
Solution Approach 1:
The patent implements preliminary processing action by integrating an image processing circuit within the image sensor that pre-calculates and extracts essential image parameters before transmission. This preliminary extraction of motion vectors, edges, or features reduces the data volume significantly while preserving all information necessary for the micro-controller to perform control operations.
Solution Approach 2:
The patent extracts only the critical image parameters needed for control operations from the complete pixel data stream. The extraction circuit identifies and outputs only relevant features such as motion vectors for optical tracking or edge information for gesture recognition, eliminating redundant data and reducing processing burden on the micro-controller.
3Device complexity
If single chip image sensor is used, then device integration is high, but image processing capability is limited
Solution Approach 1:
The patent merges the image sensor array with dedicated image processing circuits including parameter extraction units, motion detection circuits, and serial transmission interfaces onto a single chip. This integration combines sensing and processing functions, enabling the image sensor to perform preliminary image analysis and parameter extraction while maintaining high integration and achieving enhanced processing capability through the combined architecture.
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 simplifies the design of the control circuit and accelerates image processing by integrating image processing circuits and sensors on a single chip, allowing for efficient transmission and processing of image parameters, thereby reducing the computational burden on the micro-controller.
Implementation Method 1
the traditional image sensor 12 for transforming received light into electrical signals
Data Source
AI summary
An interactive device of improving image processing. The interactive device includes a processing module and a control circuit. The processing module includes a substrate, an image sensor for generating a plurality of pixel signals, and an estimation unit for determining a static parameter of at least one image object of the image based on the plurality of pixel signals. A transmission interface is used for serially outputting a control signal based on the static parameter determined by the estimation unit. The interactive device also includes a controller for controlling operation of the interactive device based on the control signal based on the static parameters corresponding to each image object. The image sensor, the estimation unit, and the transmission interface are all formed on the substrate.