3D Median Filter

Operator Function

The median filter uses the median value of neighboring points to replace the original value at the query point, thereby achieving smoothing and noise reduction.

Parameter Introduction

Input Parameters

Parameter	Range	Default Value	Description	Illustration
Input Image	0-8	0	IM number for image input

Calculation Parameters

Parameter	Range	Default Value	Description	Illustration
Search Radius		0.050	The search radius determines the filtering range of the median filter. A larger radius value results in stronger smoothing effects; a smaller radius value results in less noticeable smoothing effects. Note: The search radius should not be too large. An excessively large search radius can cause distortion in the point cloud. Adjust according to the actual situation.
Output Image	0-8	0	IM number for image output

Output Parameters

Name	Type	Range	Description
Result	bool	true/false	true for success false for failure
Warning	bool	true/false	true indicates a warning false indicates no warning
Message	string		Output success, error, or warning messages. Empty if no error or warning.
Time	float		Operator execution time, unit: ms

Exception Troubleshooting

No.	Exception Information	Corresponding Parameter	Solution
1	Input point cloud is empty		Check if input point cloud is empty

Example Introduction

Engineering Design

1. Select the Load 3D Point Cloud tool to load the required 3D point cloud image to IM0.

2. Select the 3D Median Filter tool.

Tool Usage

1. Select the input image for the operation. The image number must match the IM number where the image is located in the project.

2. Set the parameters.

3. Click Test to check if the image window and parameters meet expectations.

4. If there are no issues, click Save. Run the operator in the run list, and then view the running results in the corresponding IM.