Optical penetration-based silkworm pupa gender sensor structure

• DOI: 10.1364/ao.51.000408
• Publication Date: 2012-01-23T19:15:22Z
• Authors: Sarun Sumriddetch...; Chakkrit Kamtongdee
• Keywords: Photodiode

This paper proposes and experimentally demonstrates for what is believed to be the first time a highly sought-after optical structure highly-accurate identification of silkworm pupa gender. The key idea exploit long wavelength beam in red or near infrared spectrum that can effectively safely penetrate body pupa. Later on, simple image processing operations via thresholding, blob filtering, inversion processes are applied order eliminate unwanted noises at same highlight gender gland. Experimental proof concept using three 636 nm light emitting diodes, two-dimensional web camera, an 8 bit microcontroller board, notebook computer shows very high 95.6% total accuracy identifying 45 pupae with measured fast 96.6 ms. Other features include low cost, component counts, ease implementation control.