diff --git a/cmd/proc.go b/cmd/proc.go
index 1b8cefb..df56fb8 100644
--- a/cmd/proc.go
+++ b/cmd/proc.go
@@ -84,6 +84,7 @@ var procCmd = &cobra.Command{
 			reg.SaveRegisteredMssToRaw(registerdMSSRAW)
 		}
 
+		runtime.GC()
 		panScenes, mssScenes, err := reg.SubScenes()
 		if err != nil {
 			logrus.Error(err)
@@ -92,6 +93,13 @@ var procCmd = &cobra.Command{
 		reg.SaveScenesToTiff(panScenes, mssScenes)
 		producer.CleanScenes(panScenes)
 		producer.CleanScenes(mssScenes)
+
+		// err := reg.SubScenesLessMem()
+		// if err != nil {
+		// 	logrus.Error(err)
+		// 	return
+		// }
+
 		runtime.GC()
 
 		if saveStrip {
diff --git a/pkg/fusion/fusion.go b/pkg/fusion/fusion.go
index 7889205..8974cc9 100644
--- a/pkg/fusion/fusion.go
+++ b/pkg/fusion/fusion.go
@@ -245,8 +245,6 @@ func PansharpenIHS(pan, B, G, R, I gocv.Mat, w float32) gocv.Mat {
 
 	// 将图像从 HLS 转换回 BGR
 	fusedImage := gocv.NewMat()
-
-	log.Println("cvt color from HLS to BGR")
 	gocv.CvtColor(mssHLS, &fusedImage, gocv.ColorHLSToBGR)
 
 	channels := gocv.Split(fusedImage)
diff --git a/pkg/producer/image_registration.go b/pkg/producer/image_registration.go
index e45d011..e7e2c6c 100644
--- a/pkg/producer/image_registration.go
+++ b/pkg/producer/image_registration.go
@@ -161,6 +161,7 @@ func (r *Registrator) CalcDownPhaseCorrelation() error {
 
 	// 将PAN将采样作为轮廓匹配基准图像
 	downsampledPanImage := gocv.NewMat()
+	defer downsampledPanImage.Close()
 	gocv.Resize(r.PanImage, &downsampledPanImage,
 		image.Point{X: r.MssWidth, Y: r.MssHeight}, 0, 0, gocv.InterpolationCubic)
 	log.Println("down sampled PAN images size:", downsampledPanImage.Size())
@@ -385,6 +386,9 @@ func (r *Registrator) DoCoRegistration() error {
 			gocv.InterpolationCubic,
 			gocv.BorderConstant,
 			color.RGBA{0, 0, 0, 0})
+
+		mapX.Close()
+		mapY.Close()
 	}
 
 	// 裁掉末尾的的 MSS 480 行 和 PAN 的 480*4 行
diff --git a/pkg/producer/scenes.go b/pkg/producer/scenes.go
index dc7a9c5..451c785 100644
--- a/pkg/producer/scenes.go
+++ b/pkg/producer/scenes.go
@@ -6,6 +6,7 @@ import (
 	"image"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 
 	"github.com/airbusgeo/godal"
@@ -88,6 +89,7 @@ func (r *Registrator) SubScenes() (panScenes []*Scene, mssScenes []*Scene, err e
 			matFiltered := rrc.HFNoiseFilter(mat, float64(mat.Cols())*config.GCONFIG.Radiation.HfRadiusRatio)
 			mat.Close()
 			mat = matFiltered
+			runtime.GC()
 		}
 
 		if config.GCONFIG.Radiation.SceneMomentMatching {
@@ -132,6 +134,7 @@ func (r *Registrator) SubScenes() (panScenes []*Scene, mssScenes []*Scene, err e
 				matFiltered := rrc.HFNoiseFilter(mat, float64(mat.Cols())*config.GCONFIG.Radiation.HfRadiusRatio/4)
 				mat.Close()
 				mat = matFiltered
+				runtime.GC()
 			}
 
 			if config.GCONFIG.Radiation.SceneMomentMatching {
@@ -149,6 +152,10 @@ func (r *Registrator) SubScenes() (panScenes []*Scene, mssScenes []*Scene, err e
 		err = fmt.Errorf("pan and mss scenes count not match")
 	}
 
+	// var b bytes.Buffer
+	// gocv.MatProfile.WriteTo(&b, 1)
+	// fmt.Print(b.String())
+
 	return panScenes, mssScenes, err
 }
 
@@ -201,7 +208,7 @@ func (r *Registrator) SaveScenesToTiff(panScenes []*Scene, mssScenes []*Scene) e
 	// 输出 GeoJSON 数据
 	log.Debug(string(data))
 
-	for i, scene := range mssScenes {
+	for _, scene := range mssScenes {
 		dir := filepath.Join(r.Params.OutputDir, scene.SceneIndex, "MSS")
 		os.MkdirAll(dir, 0755)
 
@@ -211,6 +218,8 @@ func (r *Registrator) SaveScenesToTiff(panScenes []*Scene, mssScenes []*Scene) e
 		r.SetSceneBoundary(scene)
 
 		rgbirImage, _ := r.MergeMSSToBGRNIR(scene.Mat)
+		defer rgbirImage.Close()
+
 		err := utils.SaveBGRToGDALGTiff(rgbirImage,
 			4,
 			scene.Meta.Corners.UpperLeft.Longitude,
@@ -219,7 +228,6 @@ func (r *Registrator) SaveScenesToTiff(panScenes []*Scene, mssScenes []*Scene) e
 			[]godal.ColorInterp{godal.CIBlue, godal.CIGreen, godal.CIRed, godal.CIUndefined},
 			scene.Tiff)
 		if err != nil {
-			log.Errorf("save mss scene %d to tiff failed: %v", i+1, err)
 			return err
 		}
 
diff --git a/pkg/rrc/hf_filter.go b/pkg/rrc/hf_filter.go
index 1ac74a7..5decf3a 100644
--- a/pkg/rrc/hf_filter.go
+++ b/pkg/rrc/hf_filter.go
@@ -32,7 +32,9 @@ func HFNoiseFilter(img gocv.Mat, radius float64) gocv.Mat {
 	// 执行 DFT
 	DFT := gocv.NewMat()
 	defer DFT.Close()
-	gocv.Merge([]gocv.Mat{img32f, gocv.Zeros(rows, cols, gocv.MatTypeCV32F)}, &DFT)
+	zero := gocv.Zeros(rows, cols, gocv.MatTypeCV32F)
+	defer zero.Close()
+	gocv.Merge([]gocv.Mat{img32f, zero}, &DFT)
 	gocv.DFT(DFT, &DFT, gocv.DftComplexOutput)
 
 	// 中心化频谱
@@ -126,6 +128,8 @@ func fftshift(input *gocv.Mat) {
 	q3 := input.Region(image.Rect(cx, cy, input.Cols(), input.Rows())) // Bottom-Right
 
 	tmp := gocv.NewMatWithSize(q0.Rows(), q0.Cols(), input.Type())
+	defer tmp.Close()
+
 	q0.CopyTo(&tmp)
 	q3.CopyTo(&q0)
 	tmp.CopyTo(&q3)
@@ -133,6 +137,11 @@ func fftshift(input *gocv.Mat) {
 	q1.CopyTo(&tmp)
 	q2.CopyTo(&q1)
 	tmp.CopyTo(&q2)
+
+	q0.Close()
+	q1.Close()
+	q2.Close()
+	q3.Close()
 }
 
 func visualizeDFT(DFT gocv.Mat, file string) {