diff --git a/CHANGELOG.md b/CHANGELOG.md
index 773f6ea4..d6baed5b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,9 +11,8 @@
   
 ### **HEAD -> main** 2021/10/10 mandic00@live.com
 
-
-### **origin/main** 2021/10/08 mandic00@live.com
-
+- image processing fixes
+- redesign body and hand caching and interpolation
 - demo default config cleanup
 - improve gaze and face angle visualizations in draw
 
diff --git a/src/image/image.ts b/src/image/image.ts
index a131968a..7e1be008 100644
--- a/src/image/image.ts
+++ b/src/image/image.ts
@@ -165,9 +165,9 @@ export function process(input: Input, config: Config, getTensor: boolean = true)
         pixels = tf.browser ? tf.browser.fromPixels(input) : null;
       } else {
         depth = input['data'].length / input['height'] / input['width'];
-        const arr = Uint8Array.from(input['data']);
-        // const arr = new Uint8Array(input['data']['buffer']);
-        pixels = tf.tensor(arr, [input['height'], input['width'], depth], 'float32');
+        // const arr = Uint8Array.from(input['data']);
+        const arr = new Uint8Array(input['data']['buffer']);
+        pixels = tf.tensor(arr, [input['height'], input['width'], depth], 'int32');
       }
     } else {
       if (!tmpCanvas || (outCanvas.width !== tmpCanvas.width) || (outCanvas?.height !== tmpCanvas?.height)) tmpCanvas = canvas(outCanvas.width, outCanvas.height); // init output canvas
diff --git a/src/tfjs/backend.ts b/src/tfjs/backend.ts
index 813f71b5..e725031a 100644
--- a/src/tfjs/backend.ts
+++ b/src/tfjs/backend.ts
@@ -91,7 +91,9 @@ export async function check(instance, force = false) {
 
     // customize webgpu
     if (tf.getBackend() === 'webgpu') {
-      tf.ENV.set('WEBGPU_CPU_HANDOFF_SIZE_THRESHOLD', 256);
+      tf.ENV.set('WEBGPU_CPU_HANDOFF_SIZE_THRESHOLD', 512);
+      tf.ENV.set('WEBGPU_DEFERRED_SUBMIT_BATCH_SIZE', 0);
+      tf.ENV.set('WEBGPU_CPU_FORWARD', true);
     }
 
     // wait for ready