Business Cases

• Small animal behavior recording system - development

  In neuroethology experiments, we have developed a system to simultaneously monitor neural activity and behavioral changes in small animals such as mice and insects.

  Imaging techniques that use cameras to record the movement of a trackball are often used to measure the behavior of small animals. However, the use of inexpensive cameras with a time resolution of about 30 milliseconds makes it impossible to compare brain activity (on the order of a few milliseconds) and behavioral records, and therefore requires expensive high-speed camera systems.

  This system is an inexpensive configuration that measures trackball movements with two optical mice. This enables behavioral recording with a high time resolution of up to 2 milliseconds.

  

  Technologies

  • C#
  • RawInput API
  • Behavioral Measurement
  • Animal Behavior Experiments

• BLE sensor data analysis windows application - development

  We developed an application that can acquire sensor data in real time via BLE communication on Windows and analyze the data in the MATLAB environment.

  Unlike iOS and Android, Windows does not support the BLE standard at the OS level, so a dedicated dongle and SDK were used to realize BLE communication.

  Furthermore, to achieve real-time analysis of sensor data on the MATLAB environment, inter-process communication was used for real-time sensor data acquisition.

  

  Technologies

  • Windows
  • BLE
  • MATLAB
  • Inter-Process Communication
  • C/C++

• Periodic impulse waveform extraction - technical survey and implementation

  Surveyed technologies which detect and extract periodic impulse waveform from time series data, and summarized as a report document. Also implemented five algorithm chosen from these many methods and compared accuracy and performance.

  Mainly surveyed the following methods:

  • SVR Spectrum Method
  • Matrix Algebra Separation Method (MAS)
  • Cumulant Harmonic Decomposition Method
  • Orthogonal Partial Space Decomposition Method
  • Periodic Transform Method (PT)
  • Filter-Selecting Adaptive Comb Filter (ACF)
  • Uniform Q-Comb Filter
  • Fast Whitening Comb Filter
  • Harmonic Wave Inference Whitening Comb Filter
  • Lattice-type IIR Adaptive Notch Filter
  • Correlation Impulse Adaptive Filter (CIAF)
  • Rotating Adaptive Filter (RAF)
  • Cyclic-Shift Intermissive Adaptive Filter (CSSGAF)
  • Canonical Self Regression Decomposition (CARD)
  • Global Amplitude Phase Modulation Method
  • Fourier Linear Combinator (FLC)
  • Recursive Discrete Fourier Transform Method
  • Adaptive Fourier Analysis by Fast Filter-bank

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