PROBLEM TO BE SOLVED: To provide a technology for generating a pseudo-signal, to be received when an element is supposed to exist in a position of the omitted element on a probe.SOLUTION: The present invention provides an object information acquiring apparatus having: the probe which includes a plurality of elements that receive an acoustic wave propagated through an object to generate element signals a pseudo-signal generator which computes a phase shift between element signals received by at least two elements out of the plurality of elements, and generates the pseudo-signal assumed to be received at a position on the probe that is different from the positions of the elements which have received the element signals in use a result of computation and a signal processor which obtains object information based on the element signals received by the plurality of elements and the pseudo-signal.COPYRIGHT: (C)2012,JPO&INPIT【課題】探触子上の素子抜け位置に素子があると仮定した場合に受信されるだろう疑似信号を生成するための技術を提供する。【解決手段】被検体を伝搬した音響波を受信して素子信号とする複数の素子を含む探触子と、複数の素子のうち少なくとも2つの素子が受信した素子信号の間の位相ずれを演算し、演算の結果を用いて、素子信号を受信した素子とは異なる探触子上の位置で受信されると想定される疑似信号を生成する疑似信号生成部と、複数の素子が受信した素子信号と疑似信号に基づいて被検体情報を取得する信号処理部とを有する被検体情報取得装置を用いる。【選択図】図1
