Moving picture coding method and moving picture decoding method
AssigneePanasonic Corporation
InventorsShinya Kadono, Satoshi Kondo, Makoto Hagai
Life of this patent
Estimating the term…
Abstract
A moving picture coding apparatus 1 includes a counter unit 102 which counts the number of pictures following an intra coded picture; and a motion estimation unit 101 which compares respectively only reference pictures which are the intra coded picture or the following pictures, selected from among a reference picture Ref1, a reference picture Ref2 and a reference picture Ref3 stored in memories 408˜410, with a picture signal Vin, and determines the reference picture whose inter picture differential value is smallest.
Claims3
1-24. (canceled)
An integrated circuit which codes a moving picture,
- wherein in said integrated circuit, a picture is coded by one of an intra picture coding unit and an inter picture coding unit, and
- when a picture is coded by the inter picture coding unit, at least one of the following pictures is selected as a reference picture:
- an intra coded picture which is coded by the intra picture coding unit;
- a picture located before the intra coded picture in display order;
- and a picture located after the intra coded picture in display order,
- said integrated circuit comprises:
- a specifying unit operable to specify the intra coded picture as a specified picture which is used for restricting selection of the reference picture;
- and
- a coding unit operable to code information which indicates that the intra coded picture is specified as the specified picture which is used for restricting selection of the reference picture,
- wherein, in the case where the intra coded picture is specified as the specified picture in said specifying unit, for a picture to be coded by the inter picture coding unit after the specified picture, only a picture which is coded after the specified picture is selected as the reference picture, and a picture which has been coded before the specified picture is prohibited from selecting as the reference picture.
A mobile terminal comprising the integrated circuit according to claim 1.
Dependencies are inferred from the claim text.