Projection Apparatus Operation Recognition via Coordinate Range Analysis
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Solution Overview
Problem
Existing techniques for handling document information on tablet terminals and smartphones struggle to distinguish between movement and writing operations, leading to slow or incorrect responses due to the ambiguity in pen operations.
Innovation Solution
An information processing apparatus that includes a projection unit, an acquisition unit to detect operation information, and an execution unit to differentiate between movement and writing operations by determining if the operation involves a change in instruction coordinates within a predetermined range, allowing for accurate interpretation and execution of user intentions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If operation mode is determined through recognition of pen operation (pen input time and pen movement amount), then the system can handle document information through touch and gesture operations, but hard-to-distinguish operations (movement vs. writing) cannot be clearly differentiated
Solution Approach 1:
The patent segments the operation recognition process into two distinct phases: a determination phase that quickly identifies operation type based on initial contact and movement characteristics, and a recognition phase that performs detailed analysis. This segmentation allows the system to handle both simple and complex operations efficiently while accurately distinguishing between movement and writing operations.
Solution Approach 2:
The patent implements preliminary determination of operation mode before full recognition processing. By performing initial judgment based on key parameters (contact time, movement distance, acceleration) before detailed recognition, the system can quickly differentiate between movement and writing operations, reducing processing time and improving response accuracy.
2Adaptability or versatility
If operation mode is determined through recognition of pen operation, then the system can process various gestures, but response to user intention is slow or wrong
Solution Approach 1:
The patent performs preliminary determination of operation mode before initiating full recognition processing. By quickly assessing key parameters (initial contact time, first movement distance, acceleration) to determine operation type, the system accelerates response speed while maintaining accurate gesture processing capability.
Solution Approach 2:
The patent implements dynamic processing where the level of recognition detail adapts based on the determined operation type. For movement operations, simpler processing is sufficient, while writing operations trigger more detailed recognition. This dynamic approach optimizes response speed for different operation types.
Data Source
AI summary
An information processing apparatus and an information processing method in which movement processing of the projected image is executed when first operation information indicating that change of instruction coordinates is within a predetermined range is not acquired, the movement processing of the projected image being based on second operation information involving transit from an instruction as to a first position to an instruction as to a second position on the projected image, and image processing of the projected image based on the second operation information is executed in a case where the first operation information has not been acquired, the second operation information being acquired after the first operation information.