3D Shape Correction Workflow for Manual and Automatic Point Cloud Editing
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Solution Overview
Problem
Existing 3D model generation systems face challenges in efficiently generating and correcting 3D shape information for existing buildings, particularly in As-Build BIM/CIM, due to laborious point cloud processing and the difficulty in using commercially available software, especially for inexperienced users.
Innovation Solution
A 3D shape processing system and method that allows for selective execution of manual or automatic correction processing based on user input or pre-stored processing, enabling generation and correction of 3D shape information through a communication terminal and management server, utilizing a combination of manual and automatic modes for tasks like noise removal, segmentation, and model manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual correction processing is used for 3D shape information, then correction precision can be adjusted according to user needs, but operation complexity and time consumption increase
Solution Approach 1:
The system dynamically switches between automatic and manual correction modes based on user input. The instruction-receiving display component allows users to select the desired correction mode, and the processing unit adapts its behavior accordingly - executing automatic correction for routine tasks or manual correction for precise adjustments, thus resolving the contradiction between precision and complexity
Solution Approach 2:
The correction process is segmented into two distinct paths: automatic correction processing for general cases and manual correction processing for specialized cases. This segmentation allows the system to maintain high precision when needed while avoiding unnecessary complexity for routine operations
2Productivity
If automatic correction processing is used, then operation speed increases, but adaptability to specific user needs decreases
Solution Approach 1:
The system employs dynamic mode selection where the processing unit can switch between automatic and manual correction based on real-time user instructions. This dynamic adaptability allows the system to maintain high productivity through automatic correction while responding to specific user needs through manual correction mode
Solution Approach 2:
The correction processing system is designed with multi-functionality, capable of performing both automatic correction for efficiency and manual correction for adaptability. The instruction-receiving display component enables the system to serve diverse user needs within a single unified processing framework
3Measurement precision
If point cloud processing is performed manually, then processing accuracy can be controlled, but labor time and complexity increase
Solution Approach 1:
The system dynamically adjusts the level of processing based on user requirements. For routine point cloud processing, automatic correction is applied to minimize labor time. When higher accuracy is required, the system switches to manual correction mode, allowing users to control processing accuracy while minimizing unnecessary time consumption
4Ease of operation
If correction processing options are provided on display component, then user friendliness increases, but system complexity increases
Solution Approach 1:
The instruction-receiving display component acts as an intermediary between the user and the complex processing system. It presents simplified correction mode selection options to users while the processing unit handles the underlying complexity of executing appropriate correction algorithms, thus increasing user friendliness without exposing users to system complexity
Data Source
AI summary
A three-dimensional shape processing apparatus includes circuitry to selectively execute one of first correction processing and second correction processing designated by an instruction operation on an instruction-receiving display component. In the first correction processing, correction of three-dimensional shape information is executed based on an input operation. In the second correction processing, the correction of the three-dimensional shape information is executed based on stored processing pre-stored in a memory.