An inexpensive videoprojection/digitization system for behavioral research

摘要: We present an inexpensive approach to image analysis of spatial coordinates for behavioral research. Image still video images (freeze frames) with current technology can be prohibitively expensive, as well time consuming. The system outlined here provides accurate, inexpensive, and fast acquiring information from videotape. It consists simply a monitor, bellows, large diameter lens, digitizing tablet. are projected onto tablet, data acquisition is controlled series three functions written in APL. used this acquire positional on fish responding the threat aerial predation. discuss several approaches design construction system, provide computer listings initiation communication digitization boards.