Livestock stereo-camera sampling: internal lab note

สมมติฐาน

A low-cost stereo camera can estimate useful geometry only when the captured sample represents the full pen, not just animals that cross one scale.

การตั้งค่าและฮาร์ดแวร์

Two CCTV cameras and a Raspberry Pi 5 calibrated as a stereo pair beside a single fixed scale; internal-approved observations only.

Two CCTV cameras · Raspberry Pi 5 · ESP32 sensors · YOLOv12 · custom stereo calibration

วิธีทดสอบ

Compare image-derived geometry with scale observations, then check whether the sampling path covers the whole pen before interpreting accuracy.

ผลลัพธ์

The prototype demonstrates the capture path, but the single-scale sample is too small to support a publishable weight-accuracy claim.

สิ่งที่ลองแล้วไม่ได้ผล

• Using the single scale as a proxy for the whole pen produced a biased evaluation set.

ข้อจำกัด

• A fixed single scale samples too few animals to represent the whole pen.
• Image-to-weight accuracy is not publishable until the sampling problem is solved.

สิ่งที่จะทำต่อ

• Design a sampling plan that covers pen zones and time windows.
• Repeat calibration and compare against independent scale observations.