Multi-Mode Sensor Fusion for Color 3D Model Generation
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Solution Overview
Problem
Existing 3D image rendering devices require multiple sensors, leading to increased hardware cost, power consumption, and weight, which hinders their efficiency and practicality for applications like surgical operations.
Innovation Solution
A 3D image rendering device comprising a first sensor, a second sensor, an IR projector, and a processor, where the sensors operate in both 3D and 2D modes to generate depth and color signals, and the IR projector projects an IR dot pattern to facilitate depth information capture, reducing the need for additional sensors and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three image sensors are used to capture 3D depth information and surface color image, then the color 3D model quality is improved, but the hardware cost increases
Solution Approach 1:
The first image sensor is designed to perform multiple functions: capturing 3D depth information in 3D mode and capturing surface color images in 2D mode. This multi-functional design eliminates the need for separate dedicated sensors, reducing hardware cost while maintaining the quality of color 3D model generation through the fusion of depth and color data
2Measurement precision
If three image sensors are used to capture 3D depth information and surface color image, then the color 3D model quality is improved, but the power consumption increases
Solution Approach 1:
The first image sensor operates in different modes (3D mode for depth, 2D mode for color) to serve multiple purposes, eliminating the need for continuous operation of multiple dedicated sensors. This reduces overall power consumption while still providing the necessary depth and color information for high-quality color 3D model generation
3Measurement precision
If three image sensors are used to capture 3D depth information and surface color image, then the color 3D model quality is improved, but the overall weight increases
Solution Approach 1:
By designing the first image sensor to handle both 3D depth capture and 2D color image capture, the total number of sensors is reduced from three to two. This reduction directly decreases the overall weight of the device while maintaining the capability to generate high-quality color 3D models through data fusion
4Measurement precision
If multiple image sensors are used to capture depth and color information, then the image rendering accuracy is improved, but the device complexity increases
Solution Approach 1:
The first image sensor is configured to operate in different modes (3D and 2D) to capture both depth and color information, reducing the total sensor count from three to two. This simplifies the device architecture and reduces complexity while maintaining image rendering accuracy through the integration of depth and color data from the reduced sensor set
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 configuration allows for the generation of a color 3D model with reduced hardware requirements, lowering costs and power consumption while maintaining effective image rendering capabilities.
Implementation Method 1
The first sensor is configured to sense a target object in a three-dimensional (3D) mode to generate a first 3D-depth-signal, and sense the target object in a two-dimensional (2D) mode to generate a first surface-color-signal
Implementation Method 2
The second sensor is configured to sense the target object in the 3D mode to generate a second 3D-depth-signal, and sense the target object in the 2D mode to generate a second surface-color-signal
Implementation Method 3
The IR projector is configured to generate an IR dot pattern
Implementation Method 4
control the IR projector to project the IR dot pattern on the target object
Data Source
AI summary
An image rendering device and an image rendering method are disclosed. For the elements of the image rendering device, a first sensor and a second sensor are configured to sense a target object in a two-dimensional (2D) mode and three-dimensional (3D) mode to generate a first surface-color-signal, a first 3D-depth-signal, a second surface-color-signal and a second 3D-depth-signal respectively. An IR projector is configured to generate an IR-dot-pattern. A processor is configured to control the IR projector to project the IR-dot-pattern on the target object in the 3D mode, and configured to process the first surface-color-signal, the second surface-color-signal, the first 3D-depth-signal and the second 3D-depth-signal to obtain a color 3D model of the target object.