Takayoshi Higuchi (1927–2017)

Higuchi Dimension of Digital Images

There exist several methods for calculating the fractal dimension of objects represented as 2D digital images. For example, Box counting, Minkowski dilation or Fourier analysis can be employed. However, there appear to be some limitations. It is not possible to calculate only the fractal dimension of an irregular region of interest in an image or to perform the calculations in a particular dire...

Lactoquinomycin B, a Novel Antibiotic Takayoshi

Streptomyces tanashiensis IM8442T was found to produce lactoquinomycin B, a novel antibiotic, together with lactoquinomycin A. Lactoquinomycin B was purified, and the physico-chemical and biological characteristics were studied. Lactoquinomycin B, C24H27NO9, mp 149~152°C (dec), FD-MS m/z 473 (M+), is a basic substance, showing UV 2meOH (s) 239 (15,100), 287 (3,450) and 369 nm (5,300), and 1R vm...

Toshihiro Higuchi and Jun Saiki Hiroyuki Yamashiro ,

Correction: Higuchi Dimension of Digital Images

In equation 4, the two brackets surrounding [N-m/d] should be replaced by floor function brackets. Please view the correct equation here.

Higuchi Fractal Properties of Onset Epilepsy Electroencephalogram

Epilepsy is a medical term which indicates a common neurological disorder characterized by seizures, because of abnormal neuronal activity. This leads to unconsciousness or even a convulsion. The possible etiologies should be evaluated and treated. Therefore, it is necessary to concentrate not only on finding out efficient treatment methods, but also on developing algorithm to support diagnosis...