Multispectral and Panchromatic Registration

Instructions for use

Multispectral and panchromatic registration uses the panchromatic image as the reference to register the multispectral image to ensure the quality of image fusion.

SuperMap iDesktopX11i(2023) version starts to support.

Parameter description

Parameter Name Parameter Interpretation Parameter Type
Dataset

Displays the original multispectral image data used for registration and cannot be edited.

 DatasetMosaic
Use ortho panchromatic data Checked by default, the result data from Generate Orthophotos will be used as reference data. If unchecked, the panchromatic data from the original image will be used as reference data. Boolean
Panchromatic data

Available after checking Use ortho panchromatic data.

Displays the dataset containing the orthorectified panchromatic image data and cannot be edited.

 DatasetMosaic
Correction model type

Provides Linear RPC Correction Model, Quadratic Polynomial RPC Correction Model, and Cubic Polynomial RPC Correction Model. The default selection is Linear RPC Correction Model.

  • Linear RPC Correction Model: Suitable for images with minor internal distortion. This model requires at least 4 ground control points. Please add control point information via the Manage Ground Control Points function.
  • Quadratic Polynomial RPC Correction Model: Suitable for images with moderate internal distortion. This model requires at least 9 ground control points. Please add control point information via the Manage Ground Control Points function.
  • Cubic Polynomial RPC Correction Model: Suitable for images with significant internal distortion. This model requires at least 16 ground control points. Please add control point information via the Manage Ground Control Points function.
 CorrectedModelType
Number of blocks in column direction The number of blocks into which a scene is divided in the column direction. The default is 12. Integer
Number of blocks in row direction The number of blocks into which a scene is divided in the row direction. The default is 4. Integer
Minimum points per block The minimum number of matched points within each image block. The default is 1000. Integer
Cloud Mask Sets the data source where the cloud mask dataset is located. DataSource
Dataset Automatically removes tie points within the dataset bounds based on the set cloud mask dataset. By default, no cloud mask dataset is set, meaning all tie points are retained. DatasetVector
Building detection Unchecked by default, meaning building area detection is not performed. When checked, building area detection is automatically performed, and all tie points within the detected result range are removed. Boolean
Export directory Uses the Processing path parameter from Set Image Path and cannot be edited. File
Resolution type

Specifies the method for setting the output resulting image resolution. The default selection is Original resolution.

  • Original resolution: Retains the original resolution of the input image.
  • Fixed Value: Uses the input fixed value as the output image resolution.
  • Custom: Outputs different resolutions based on different satellite sensor types. Selecting the Custom option will pop up the Custom Resolution: dialog. You can click the Add button on the toolbar to add a new record. Then click the cell in the Satellite sensor type column to select the sensor type. Finally, enter the resolution corresponding to the sensor type in the cell of the Resolution column.
    Note:
    • If the corresponding satellite sensor type is not found, please select the USEDEFINE option. After selecting this option, the system will use the resolution corresponding to USEDEFINE to output data for all unsupported satellite sensor types.
    • If processing image data from multiple satellite sensor types simultaneously (e.g., ZY3, GF-2, LandSat) but only setting the resolution for one type (e.g., only setting ZY3's resolution), images from other sensor types (e.g., GF-2 and LandSat) will be output using their original resolution.
 OrthoRatioType
Coordinate system settings Uses the Output coordinate system parameter from Set Image Path and cannot be edited. PrjCoordSys
Output format Uses the Output format parameter from Set Image Path and cannot be edited. FileType
Compression method Uses the Compression method parameter from Set Image Path and cannot be edited. CompressMethod
Create image pyramid Checked by default. Builds pyramids for the image data according to the specified resampling method to improve image zoom display rendering and performance. Boolean
Resampling method Available after checking Create Image Pyramid. The default is Average. For more method introductions, please refer to Resampling Method. PyramidResampleType
Asynchronously create statistics During image browsing, the layer will be stretched based on statistics information. If the image lacks statistics information, it will be displayed using the default stretch method, and 8-bit data will not be stretch displayed. Checked by default, meaning statistics will be created for the image in the background without affecting process execution. If unchecked, statistics will be created while executing this tool, which may consume time. Boolean

Output Result

  • Outputs the orthorectified multispectral image data to the local folder.
  • Automatically creates an OrthoMuxmosaic dataset in the OrthoData data source based on the multispectral ortho image data.

Related Topics

Block Adjustment

Generate Orthophotos

Image Fusion