MPEG data processing apparatus comprising an arrangement for estimating an interval between particular picture data

A particular picture searching section for searching moving picture coding experts group (MPEG) video data for particular picture data, said particular picture searching section comprising:

• first means for detecting a current particular picture datum in said MPEG video data to obtain a detected result, said first means estimating, as an estimated interval, an interval between the current particular picture datum and a predicted next particular picture datum in accordance with said detected result;
• and
• second mean, connected to said first means, for extracting, as a predicted one of the particular picture data, the predicted next particular picture datum in accordance with the estimated interval.

A method of successively searching moving picture coding experts group (MPEG) video data for particular picture data, said method comprising the steps of:

• estimating, and estimated particular picture interval, a next particular picture interval between a current particular picture datum and a predicted next particular picture datum using a past particular picture interval between the current particular picture datum and a previous particular picture datum;
• and
• extracting the predicted next particular picture datum from said MPEG video data on the basis of the estimated particular picture interval.