def read_int16_matrix(fid, rows, cols):
 return _unpack_matrix(fid, rows, cols, dtype='>i2', out_dtype=np.int16)

def read_int16_matrix ( fid , rows , cols ) : return _unpack_matrix ( fid , rows , cols , dtype = '>i2' , out_dtype = np . int16 )
read 16bit integer matrix from bti file .