Event-Based Sensor Distance Imaging With Pattern-Shape Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration and utilization of event-based sensors in combination with other apparatuses for improving the accuracy of distance information calculation has not been sufficiently explored.
Innovation Solution
An information processing apparatus and method that utilizes an event-based sensor to calculate distance information by constructing images based on event signals and complementary information derived from changes in a predetermined pattern's shape, enhancing the accuracy of distance calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If event-based sensor is used for distance calculation, then power consumption is reduced and operating speed is improved, but measurement accuracy of distance information deteriorates
Solution Approach 1:
The patent combines event-based sensor data with traditional imaging sensor data to create a hybrid measurement system. The event-based sensor provides high-speed, low-power motion detection while the imaging sensor provides accurate distance measurement, and their results are integrated to achieve both energy efficiency and measurement accuracy.
Solution Approach 2:
The patent introduces an image processing apparatus as an intermediary that receives data from both event-based sensors and imaging sensors, processes the combined information, and outputs accurate distance measurements. This intermediary coordinates the data from different sensor types to resolve the accuracy issue.
2Speed
If event-based sensor is used for distance calculation, then operating speed is improved, but measurement accuracy of distance information deteriorates
Solution Approach 1:
The patent merges the high-speed response capability of event-based sensors with the precise distance measurement capability of imaging sensors. The event-based sensor captures motion events at high speed while the imaging sensor provides accurate distance data, and their combined output achieves both speed and accuracy.
Solution Approach 2:
The patent uses feedback mechanisms where the image processing apparatus continuously receives data from both sensor types, processes the information, and adjusts the measurement output to maintain accuracy while utilizing the high-speed capabilities of the event-based sensor.
3Use of energy by moving object
If event-based sensor is used alone, then power consumption is reduced, but completeness of distance information deteriorates
Solution Approach 1:
The patent combines event-based sensor output with imaging sensor output to create a complete distance information set. The event-based sensor provides energy-efficient motion detection while the imaging sensor supplements the distance information, ensuring no critical data is lost.
Solution Approach 2:
The patent creates a multi-functional measurement system where the image processing apparatus handles both event-based sensor data and imaging sensor data, processing multiple types of input to produce comprehensive distance information that compensates for the limitations of using event-based sensors alone.
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
The proposed solution increases the frame rate and accuracy of distance information calculation by leveraging event-based sensors, allowing for higher resolution and improved time-axis frequency in distance estimation.
Implementation Method 1
an event-based sensor in which a pixel detecting a change in the intensity of incident light generates a signal
Implementation Method 2
irradiates a target with light with a predetermined pattern
Data Source
AI summary
There is provided an information processing apparatus that includes a first calculation section that calculates distance information regarding a distance to a target irradiated with light with a predetermined pattern, a generation section that constructs an image on the basis of, among event signals output by an event-based sensor, the event signal output according to reflected light from the target, and a second calculation section that calculates complementary information that complements the distance information, on the basis of a change in a shape of the predetermined pattern in the image.