Gesture Interface Depth Camera Spatial Detection
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Solution Overview
Problem
Traditional touch screen devices are limited in their ability to receive inputs from users located further away or engaging in non-touch gestures, making them less effective for larger display devices and scenarios beyond simple touch interactions.
Innovation Solution
A system utilizing depth cameras to detect spatial gestures made by users, translating these gestures into events that can trigger functions on a web client, allowing for a gesture-based interface on larger display devices without the need for direct touch input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch screen device is used, then direct touch input is achieved, but user interaction is limited when the user is located further away from the screen
Solution Approach 1:
The patent introduces depth cameras as an intermediary device between the user and the display screen. The depth camera captures spatial gesture data from users at various distances, translating physical movements into digital signals that can be processed by the system, thereby extending interaction beyond direct touch
Solution Approach 2:
The patent replaces the mechanical touch input system with an optical sensing system using depth cameras. Instead of requiring physical contact with the screen, the system uses optical fields to detect and interpret spatial gestures, eliminating the limitation of touch-based interaction
2Adaptability or versatility
If depth cameras are used to detect spatial gestures, then interaction distance range is extended, but device complexity increases
Solution Approach 1:
The depth camera system serves multiple functions: it captures depth data for gesture recognition, determines user position and orientation, and provides spatial mapping information. This multi-functionality reduces the need for separate sensors for each capability, thereby limiting the increase in overall system complexity
Solution Approach 2:
The system creates a digital copy of the user's spatial gestures and body positions through depth camera capture. This virtual representation allows for complex interaction analysis without requiring additional physical components, processing the copied spatial data to determine gestures and trigger appropriate responses
3Ease of operation
If spatial gesture recognition is implemented, then ease of operation for distant users is improved, but measurement precision requirements increase
Solution Approach 1:
The patent segments the user's body into distinct parts (hands, arms, torso, head) and tracks each segment's position and orientation separately. This segmentation allows for more precise measurement of specific body parts while maintaining ease of operation, as the system can focus computational resources on detecting the relevant gesture-critical segments
Data Source
AI summary
Systems and methods for providing a gesture-based interface are provided. In some aspects, depth data indicative of a person interacting with one or more display devices is received. The one or more display devices display a plurality of columns. Each of the plurality of columns includes a plurality of icons. A column corresponding to a position of the person with respect to the one or more display devices is determined using the depth data. The column is from among the plurality of columns displayed at the one or more display devices. A signal for expanding a predetermined icon in the column corresponding to the position of the person with respect to the one or more display devices is provided.