Head Motion Sensor Threshold Segmentation for Cursor Control
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Solution Overview
Problem
Conventional techniques fail to accurately separate different operations, such as mouse pointer movement and click actions, using head motion due to the overlap in motion detection, leading to positional shifts during click operations.
Innovation Solution
An information processing method that acquires data on movement speed from sensors mounted on a user's head, determines thresholds for different processing types, and controls the execution of first and second processing based on these thresholds, using preceding data to separate the operations effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If head motion is used to control both pointer movement and click operations, then a single input device can perform multiple functions, but it becomes difficult to appropriately separate different operations leading to positional shifts
Solution Approach 1:
The patent segments head motion into distinct phases: approach phase (moving toward target) and execution phase (clicking). By detecting velocity thresholds and temporal patterns, the system separates pointer movement control from click operation detection, preventing positional shifts while maintaining multi-functionality with a single head motion input device.
2Speed
If head motion data is used immediately for processing, then real-time responsiveness is achieved, but the position shifts during click operations
Solution Approach 1:
The patent implements preliminary action by detecting the approach phase of head motion and preparing for the upcoming click operation. The system identifies velocity increases and temporal patterns before the actual click occurs, allowing it to anticipate and compensate for position shifts by using data from the approach phase to correct execution phase positioning.
3Device complexity
If a single sensor is used for both movement detection and click detection, then device complexity is reduced, but operational accuracy deteriorates
Solution Approach 1:
The patent applies dynamics by making the sensor processing mode adaptive rather than static. A single sensor dynamically switches between detecting gradual position changes (pointer movement) and sudden velocity changes (click operations) based on real-time motion characteristics. The system adjusts its interpretation of sensor data based on the detected phase of head motion, maintaining high reliability despite using only one sensor.
Data Source
AI summary
Appropriately separating at least two different types of processing by using a motion of a predetermined part provided with a sensor. An information processing method executed by a processor included in an information processing apparatus, the information processing method comprising: sequentially acquiring data relating to a movement speed of a predetermined part of a user from a sensor mounted on the predetermined part; determining whether or not the data is equal to or higher than a predetermined threshold; controlling, when the data is determined to be lower than the predetermined threshold, execution of first processing by using data preceding, by a first predetermined amount of time, a time point where the determination is made that the data is lower than the predetermined threshold; and controlling, when the data is determined to be equal to or higher than the predetermined threshold, execution of second processing that differs from the first processing.