Using International Data Encryption Algorithm(IDEA) encrypt the watermark image pixel or image file, according to human visual frequency response theory determine watermark embedded position to achieve the blind watermark,then using discrete cosine transform relize data embedded and extracted.

Image segmentation of agricultural products based on human vision;

Performance evaluation of optoelectronic imaging system is investigated in theory on the basis of human vision experiments.

The traditional method,which is based on MSE to objectively evaluate the quality of impressed images,sometimes cannot conform to effect of human vision perception.

By using of single-constant Kubelka-Munk theory,the basic equations used in the recipe formulation as well as the recipe correction are derived based on the concept of spectral visual response fitting in matrix form.

By using of single-constant Kubelka-Munk theory, the basic equations used in the recipe formulation as well as the recipe correction are derived based on the concept of spectral visual response fitting in matrix form.

The relationship between structure of polyurethane foam sandwich panels and the frequency response;

Frequency responses of the surface-acoustic-wave driving single-electron-transport device;

Analysis of frequency response of aero-engine flame-basket under dynamic load;

A study of the practical value of resonance frequency impulse oscillometry on small airway obstruction;