diff --git a/cmd/proc.go b/cmd/proc.go
index 635a64b..2dba148 100644
--- a/cmd/proc.go
+++ b/cmd/proc.go
@@ -45,20 +45,20 @@ var procCmd = &cobra.Command{
 		calculator.EOP = calculator.NewEOPTable()
 		calculator.EOP.Load(eopData, eopp5Line)
 
-		reg := producer.NewRegistrator(producer.DownSampled)
-		reg.Params = initParams()
+		processor := producer.NewImgProc(producer.DownSampled)
+		processor.Params = initParams()
 
-		if err := reg.LoadAuxData(); err != nil {
+		if err := processor.LoadAuxData(); err != nil {
 			logrus.Fatal(err)
 		}
 
 		// reg.AuxPrint()
 
-		if err := reg.LoadMssRaw(); err != nil {
+		if err := processor.LoadMssRaw(); err != nil {
 			logrus.Fatal(err)
 		}
 
-		if err := reg.LoadPanRaw(); err != nil {
+		if err := processor.LoadPanRaw(); err != nil {
 			logrus.Fatal(err)
 		}
 
@@ -71,14 +71,14 @@ var procCmd = &cobra.Command{
 		os.MkdirAll(params.OutputDir, 0755)
 
 		if doLUTRRC {
-			reg.DoRRCbyLUT(lutDir)
+			processor.DoRRCbyLUT(lutDir)
 		}
 
 		if doMomentMatching {
-			reg.DoMomentMatching()
+			processor.DoMomentMatching()
 		}
 
-		if err := reg.DoPhaseCorrelation(); err != nil {
+		if err := processor.DoPhaseCorrelation(); err != nil {
 			logrus.Fatal(err)
 		}
 
@@ -87,33 +87,33 @@ var procCmd = &cobra.Command{
 				params.OutputDir,
 				strings.TrimSuffix(filepath.Base(params.MssRawFile), filepath.Ext(params.MssRawFile))+"_registered.RAW",
 			)
-			reg.SaveRegisteredMssToRaw(registerdMSSRAW)
+			processor.SaveRegisteredMssToRaw(registerdMSSRAW)
 		}
 
 		runtime.GC()
-		panScenes, mssScenes, err := reg.SubScenes()
+		panScenes, mssScenes, err := processor.SubScenes()
 		if err != nil {
 			logrus.Error(err)
 		}
 
-		reg.OutputL1A(panScenes, mssScenes)
+		processor.OutputL1A(panScenes, mssScenes)
 		producer.CleanScenes(panScenes)
 		producer.CleanScenes(mssScenes)
 
 		runtime.GC()
 
 		if saveStrip {
-			reg.SaveOriginalPanToGDALGTiff(reg.Params.PanTiffFile)
-			reg.SaveRegisteredMssToGDALGTiff(reg.Params.MssTiffFile)
+			processor.SaveOriginalPanToGDALGTiff(processor.Params.PanTiffFile)
+			processor.SaveRegisteredMssToGDALGTiff(processor.Params.MssTiffFile)
 		}
 
-		if reg.Params.DoPansharpen {
-			reg.DoScenePansharpen(panScenes, mssScenes)
+		if processor.Params.DoPansharpen {
+			processor.DoScenePansharpen(panScenes, mssScenes)
 		}
 
-		reg.Report()
+		processor.Report()
 
-		reg.Clean()
+		processor.Clean()
 	},
 }
 
diff --git a/pkg/producer/aux.go b/pkg/producer/aux.go
index db2bb55..f278175 100644
--- a/pkg/producer/aux.go
+++ b/pkg/producer/aux.go
@@ -21,7 +21,7 @@ import (
 	"starwiz.cn/sjy01/image-proc/pkg/config"
 )
 
-func (r *Registrator) LoadAuxData() error {
+func (r *ImgProc) LoadAuxData() error {
 	var err error
 	r.auxHeads, r.auxBoxes, r.AuxPlatforms, err = auxilary.ExtractAux(r.Params.AuxRawFile)
 
@@ -37,7 +37,7 @@ func (r *Registrator) LoadAuxData() error {
 }
 
 // 数据校验和测试
-func (r *Registrator) AuxPrint() {
+func (r *ImgProc) AuxPrint() {
 	var fcPos84 geojson.FeatureCollection
 	var fcPos84Interp geojson.FeatureCollection
 	for _, p := range r.AuxPlatforms {
@@ -63,7 +63,7 @@ func (r *Registrator) AuxPrint() {
 	f.Write(data)
 }
 
-func (r *Registrator) SceneImageTime(scene *Scene) (start, center, end time.Time) {
+func (r *ImgProc) SceneImageTime(scene *Scene) (start, center, end time.Time) {
 	startPosInAux, endPosInAux := r.SceneInAuxIndex(scene)
 	centerPosInAux := (startPosInAux + endPosInAux) / 2
 
@@ -78,7 +78,7 @@ func (r *Registrator) SceneImageTime(scene *Scene) (start, center, end time.Time
 }
 
 // FIXME: This function is not accurate enough. 四元数、成像时刻、GPS 等需要修改为插值获取
-func (r *Registrator) ComputeMetaAndRPC(scene *Scene) (topLeft, bottomRight orb.Point) {
+func (r *ImgProc) ComputeMetaAndRPC(scene *Scene) (topLeft, bottomRight orb.Point) {
 	log.Info("using attitude quaternion to calculate image boundary...")
 	line0Start := r.calculateLatLonH(scene, 0, 0, 0)
 	line0End := r.calculateLatLonH(scene, 0, scene.Width, 0)
@@ -169,13 +169,13 @@ func (r *Registrator) ComputeMetaAndRPC(scene *Scene) (topLeft, bottomRight orb.
 	return
 }
 
-func (r *Registrator) SceneInAuxIndex(scene *Scene) (int, int) {
+func (r *ImgProc) SceneInAuxIndex(scene *Scene) (int, int) {
 	startPosInAux := r.sceneOffsetInAuxIndex(scene, 0)
 	endPosInAux := r.sceneOffsetInAuxIndex(scene, scene.Height)
 	return startPosInAux, endPosInAux
 }
 
-func (r *Registrator) sceneOffsetInAuxIndex(scene *Scene, offset int) int {
+func (r *ImgProc) sceneOffsetInAuxIndex(scene *Scene, offset int) int {
 	var auxForImageRow int
 	switch scene.Type {
 	case "MSS":
@@ -194,7 +194,7 @@ func (r *Registrator) sceneOffsetInAuxIndex(scene *Scene, offset int) int {
 }
 
 // row, col 相对于图像景左上角, H 为地面目标点高度
-func (r *Registrator) calculateLatLonH(scene *Scene, row, col, H int) calculator.IntersectionPoint {
+func (r *ImgProc) calculateLatLonH(scene *Scene, row, col, H int) calculator.IntersectionPoint {
 	// 内插值获取图像行时刻
 	ucam := col
 	cross := 16
diff --git a/pkg/producer/dark_bias.go b/pkg/producer/dark_bias.go
index 815c2c7..ed5adff 100644
--- a/pkg/producer/dark_bias.go
+++ b/pkg/producer/dark_bias.go
@@ -1,11 +1,11 @@
 package producer
 
 const (
-	DarkBiasValue = 15675.0/6
+	DarkBiasValue = 15675.0 / 6
 )
 
 // 暗场偏置校正 固定值15675校正
-func (r *Registrator) DoDarkBiasCorrection() {
+func (r *ImgProc) DoDarkBiasCorrection() {
 	r.PanImage.SubtractFloat(DarkBiasValue)
 	for i := 0; i < len(r.registeredMssImages); i++ {
 		r.registeredMssImages[i].SubtractFloat(DarkBiasValue)
diff --git a/pkg/producer/image_registration.go b/pkg/producer/image_registration.go
index 9eeed2f..e84af09 100644
--- a/pkg/producer/image_registration.go
+++ b/pkg/producer/image_registration.go
@@ -37,7 +37,7 @@ const (
 
 type ResampleMethod string
 
-type Registrator struct {
+type ImgProc struct {
 	Params Params
 
 	PanImage  gocv.Mat
@@ -69,14 +69,14 @@ type Registrator struct {
 	report Report
 }
 
-func NewRegistrator(rsmethod ResampleMethod) *Registrator {
-	var r Registrator
+func NewImgProc(rsmethod ResampleMethod) *ImgProc {
+	var r ImgProc
 	r.resampleMethod = rsmethod
 
 	return &r
 }
 
-func (r *Registrator) LoadPanRaw() error {
+func (r *ImgProc) LoadPanRaw() error {
 	data, err := os.ReadFile(r.Params.PanRawFile)
 	if err != nil {
 		log.Error("Error reading raw file: ", err)
@@ -111,7 +111,7 @@ func (r *Registrator) LoadPanRaw() error {
 	return nil
 }
 
-func (r *Registrator) LoadMssRaw() error {
+func (r *ImgProc) LoadMssRaw() error {
 	data, err := os.ReadFile(r.Params.MssRawFile)
 	if err != nil {
 		log.Error("Error reading raw file: ", err)
@@ -141,7 +141,7 @@ func (r *Registrator) LoadMssRaw() error {
 	return nil
 }
 
-func (r *Registrator) DoPhaseCorrelation() error {
+func (r *ImgProc) DoPhaseCorrelation() error {
 	switch r.resampleMethod {
 	case UpSampled:
 		return r.CalcUpPhaseCorrelation()
@@ -151,7 +151,7 @@ func (r *Registrator) DoPhaseCorrelation() error {
 }
 
 // 将PAN降采样后计算相位相关的偏移量
-func (r *Registrator) CalcDownPhaseCorrelation() error {
+func (r *ImgProc) CalcDownPhaseCorrelation() error {
 	// 确保 MSS 高度是 PAN 高度的 1/4
 	if r.MssHeight*4 != r.PanHeight {
 		err := fmt.Errorf("MSS height is not 1/4 of PAN height, invalid raw file")
@@ -209,7 +209,7 @@ func (r *Registrator) CalcDownPhaseCorrelation() error {
 }
 
 // 将MSS升采样采样后计算相位相关的偏移量
-func (r *Registrator) CalcUpPhaseCorrelation() error {
+func (r *ImgProc) CalcUpPhaseCorrelation() error {
 	log.Fatal("unsuppotted up-resample method")
 	// 确保 MSS 高度是 PAN 高度的 1/4
 	if r.MssHeight*4 != r.PanHeight {
@@ -249,7 +249,7 @@ func (r *Registrator) CalcUpPhaseCorrelation() error {
 	return r.DoPANCoRegistration()
 }
 
-func (r *Registrator) doPhaseCorrelation(base gocv.Mat,
+func (r *ImgProc) doPhaseCorrelation(base gocv.Mat,
 	mssImages []gocv.Mat,
 	height, width,
 	blockHeight, blockWidth int) error {
@@ -327,7 +327,7 @@ func (r *Registrator) doPhaseCorrelation(base gocv.Mat,
 	return nil
 }
 
-func (r *Registrator) Clean() {
+func (r *ImgProc) Clean() {
 	r.PanImage.Close()
 	for i := 0; i < MssBands; i++ {
 		r.MssImages[i].Close()
@@ -340,7 +340,7 @@ func (r *Registrator) Clean() {
 	r.rgbirImage.Close()
 }
 
-func (r *Registrator) calcMSSDeltaCoeffs(bands int) error {
+func (r *ImgProc) calcMSSDeltaCoeffs(bands int) error {
 	// 计算每个通道的delta多项式拟合系数
 	for i := 0; i < bands; i++ {
 		var cx []float64
@@ -397,7 +397,7 @@ func (r *Registrator) calcMSSDeltaCoeffs(bands int) error {
 	return nil
 }
 
-func (r *Registrator) DoMSSCoRegistration(byEdge bool) error {
+func (r *ImgProc) DoMSSCoRegistration(byEdge bool) error {
 	for band := 0; band < MssBands; band++ {
 		if len(r.deltaXCoeffs[band]) < 2 || len(r.deltaYCoeffs[band]) < 3 {
 			log.Errorf("delta coefficients not calculated, skip co-registration %d", band+1)
@@ -456,7 +456,7 @@ func (r *Registrator) DoMSSCoRegistration(byEdge bool) error {
 	return nil
 }
 
-func (r *Registrator) DoPANCoRegistration() error {
+func (r *ImgProc) DoPANCoRegistration() error {
 	if len(r.deltaXCoeffs[0]) < 2 || len(r.deltaYCoeffs[0]) < 3 {
 		log.Error("delta coefficients not calculated, skip co-registration")
 		return nil
diff --git a/pkg/producer/meta.go b/pkg/producer/meta.go
index 8b7d2c5..48fa396 100644
--- a/pkg/producer/meta.go
+++ b/pkg/producer/meta.go
@@ -72,7 +72,7 @@ func (corners Corners) Extend() (lng1, lat1, lng2, lat2 float64) {
 	return
 }
 
-func (r *Registrator) makeProductMeta(scene *Scene) *ProductMeta {
+func (r *ImgProc) makeProductMeta(scene *Scene) *ProductMeta {
 	meta := &ProductMeta{
 		Satellite:      "SJY01",
 		Sensor:         "PMS",
diff --git a/pkg/producer/output.go b/pkg/producer/output.go
index 0bf1fb6..6f67010 100644
--- a/pkg/producer/output.go
+++ b/pkg/producer/output.go
@@ -13,7 +13,7 @@ import (
 	"starwiz.cn/sjy01/image-proc/pkg/utils"
 )
 
-func (r *Registrator) SaveOriginalPanToGDALGTiff(tiffFile string) error {
+func (r *ImgProc) SaveOriginalPanToGDALGTiff(tiffFile string) error {
 	err := utils.SavePanToGDALGTiff(r.PanImage, 0, 0, tiffFile, PanResolution)
 	if err != nil {
 		return err
@@ -22,7 +22,7 @@ func (r *Registrator) SaveOriginalPanToGDALGTiff(tiffFile string) error {
 	return nil
 }
 
-func (r *Registrator) SaveRegisteredMssToGDALGTiff(tiffFile string) error {
+func (r *ImgProc) SaveRegisteredMssToGDALGTiff(tiffFile string) error {
 	r.rgbirImage = gocv.NewMat()
 	gocv.Merge(r.registeredMssImages[:], &r.rgbirImage)
 
@@ -37,7 +37,7 @@ func (r *Registrator) SaveRegisteredMssToGDALGTiff(tiffFile string) error {
 	return nil
 }
 
-func (r *Registrator) BytesToRaw(mssData []byte, filePath string) error {
+func (r *ImgProc) BytesToRaw(mssData []byte, filePath string) error {
 	f, err := os.OpenFile(filePath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0777)
 	if err != nil {
 		return err
@@ -48,15 +48,15 @@ func (r *Registrator) BytesToRaw(mssData []byte, filePath string) error {
 	return nil
 }
 
-func (r *Registrator) SaveRegisteredMssToRaw(raw string) error {
+func (r *ImgProc) SaveRegisteredMssToRaw(raw string) error {
 	return saveRegisteredMssToRaw(raw, r.registeredMssImages)
 }
 
-func (r *Registrator) Report() error {
+func (r *ImgProc) Report() error {
 	return WriteReport(&r.report, r.Params.ReportFile)
 }
 
-func (r *Registrator) rpcKeywordInTif() {
+func (r *ImgProc) rpcKeywordInTif() {
 	// GDAL库对应的RPC关键词
 	// keys := []string{
 	// 	"ERR_BIAS", "ERR_RAND",
diff --git a/pkg/producer/phase_correlation.go b/pkg/producer/phase_correlation.go
index 9ffb3fe..5f8ff46 100644
--- a/pkg/producer/phase_correlation.go
+++ b/pkg/producer/phase_correlation.go
@@ -22,7 +22,7 @@ type Block struct {
 	coord  image.Point // top-left corner of the block in the original image
 }
 
-func (r *Registrator) calculateBlockPhaseShift(panBlock, mssBlock gocv.Mat) (gocv.Point2f, float64) {
+func (r *ImgProc) calculateBlockPhaseShift(panBlock, mssBlock gocv.Mat) (gocv.Point2f, float64) {
 	pan := gocv.NewMat()
 	mss := gocv.NewMat()
 
@@ -43,7 +43,7 @@ func (r *Registrator) calculateBlockPhaseShift(panBlock, mssBlock gocv.Mat) (goc
 	return shift, response
 }
 
-func (r *Registrator) fileterPhaseShift(thredholds []float64, greaterThan bool) error {
+func (r *ImgProc) fileterPhaseShift(thredholds []float64, greaterThan bool) error {
 	if len(thredholds) > 4 {
 		return errors.New("thredholds length should be less than 4")
 	}
diff --git a/pkg/producer/rpc.go b/pkg/producer/rpc.go
index 3eec078..d87d803 100644
--- a/pkg/producer/rpc.go
+++ b/pkg/producer/rpc.go
@@ -32,7 +32,7 @@ type RPC struct {
 	gridsize       int
 
 	scene       *Scene
-	registrator *Registrator
+	registrator *ImgProc
 }
 
 // GroundPoint 表示地面点的三维坐标
@@ -53,7 +53,7 @@ type RPCModel struct {
 }
 
 // rational polynomial coeffients
-func NewRPC(r *Registrator, scene *Scene) *RPC {
+func NewRPC(r *ImgProc, scene *Scene) *RPC {
 	rpc := RPC{
 		elevationLayer: config.GCONFIG.RPC.AltitudeLayer,
 		gridsize:       config.GCONFIG.RPC.GridSize,
diff --git a/pkg/producer/rrc.go b/pkg/producer/rrc.go
index 016dd19..1a9ee76 100644
--- a/pkg/producer/rrc.go
+++ b/pkg/producer/rrc.go
@@ -9,7 +9,7 @@ import (
 	"starwiz.cn/sjy01/image-proc/pkg/rrc"
 )
 
-func (r *Registrator) DoRRCbyLUT(lutDir string) error {
+func (r *ImgProc) DoRRCbyLUT(lutDir string) error {
 	logrus.Printf("try to do RRC [%s]...", lutDir)
 	lutPAN, err := rrc.LoadLUT(filepath.Join(lutDir, "B0.LUT"), 9344)
 	if err != nil {
@@ -42,7 +42,7 @@ func (r *Registrator) DoRRCbyLUT(lutDir string) error {
 	return nil
 }
 
-func (r *Registrator) DoMomentMatching() error {
+func (r *ImgProc) DoMomentMatching() error {
 	rrc.DoMomentMatching(r.PanImage)
 	for i := 0; i < 4; i++ {
 		rrc.DoMomentMatching(r.MssImages[i])
diff --git a/pkg/producer/scenes.go b/pkg/producer/scenes.go
index da15bd2..de06212 100644
--- a/pkg/producer/scenes.go
+++ b/pkg/producer/scenes.go
@@ -50,7 +50,7 @@ func CleanScenes(scenes []*Scene) {
 // 默认分景大小：
 // MSS  2336 * 2336 - 1764
 // PAN  9344 * 9344 - 7056
-func (r *Registrator) SubScenes() (panScenes []*Scene, mssScenes []*Scene, err error) {
+func (r *ImgProc) SubScenes() (panScenes []*Scene, mssScenes []*Scene, err error) {
 	if len(r.Params.Targets.Targets) > 0 && r.Params.Targets.Targets[0].EndLine > 0 {
 		return r.RoiScenes()
 	}
@@ -159,7 +159,7 @@ func (r *Registrator) SubScenes() (panScenes []*Scene, mssScenes []*Scene, err e
 	return panScenes, mssScenes, err
 }
 
-func (r *Registrator) OutputL1A(panScenes []*Scene, mssScenes []*Scene) error {
+func (r *ImgProc) OutputL1A(panScenes []*Scene, mssScenes []*Scene) error {
 	var fc geojson.FeatureCollection
 	for i, scene := range panScenes {
 		dir := filepath.Join(r.Params.OutputDir, scene.SceneIndex, "PAN")
@@ -247,7 +247,7 @@ func (r *Registrator) OutputL1A(panScenes []*Scene, mssScenes []*Scene) error {
 	return nil
 }
 
-func (r *Registrator) DoScenePansharpen(panScenes []*Scene, mssScenes []*Scene) error {
+func (r *ImgProc) DoScenePansharpen(panScenes []*Scene, mssScenes []*Scene) error {
 	for i := 0; i < len(panScenes); i++ {
 		fusedTiff := strings.Replace(mssScenes[i].Tiff, "MSS", "FUS", -1)
 		err := fusion.Pansharpen(panScenes[i].Tiff, mssScenes[i].Tiff, fusedTiff, fusion.ESRI, 0.1)
@@ -266,7 +266,7 @@ func (r *Registrator) DoScenePansharpen(panScenes []*Scene, mssScenes []*Scene)
 	return nil
 }
 
-func (r *Registrator) MergeMSSToBGRNIR(channels []gocv.Mat) (gocv.Mat, error) {
+func (r *ImgProc) MergeMSSToBGRNIR(channels []gocv.Mat) (gocv.Mat, error) {
 	var rgbirImage gocv.Mat
 	if len(channels) != 4 {
 		return rgbirImage, fmt.Errorf("mss channels count not match")
@@ -281,7 +281,7 @@ func (r *Registrator) MergeMSSToBGRNIR(channels []gocv.Mat) (gocv.Mat, error) {
 
 }
 
-func (r *Registrator) RoiScenes() (panScenes []*Scene, mssScenes []*Scene, err error) {
+func (r *ImgProc) RoiScenes() (panScenes []*Scene, mssScenes []*Scene, err error) {
 	log.Println("using target scenes")
 	for _, target := range r.Params.Targets.Targets {
 		y0 := 4 * target.StartLine