摘要:
A moving image encoding method of encoding a moving image while switching between variable-length encoding schemes. In this method, a continuous unit to be continuously reproduced is determined (S5201), a stream is generated by encoding the moving image without switching between variable-length encoding schemes in the continuous unit (S5202), and management information is generated that includes a first flag information indicating that a variable-length encoding scheme is fixed in the continuous unit (S5204, and S5205).
摘要:
A ball screw nut, into which a ball screw shaft is screwed, is coupled with a first cylindrical member disposed in a periphery of the ball screw shaft so as not to rotate with each other. The ball screw nut and the first cylindrical member are rotatably supported on a second cylindrical member by way of balls arranged so as to form two rows. One end portion of the ball screw nut is spline-fitted with one end portion of the first cylindrical member. Two rows of ball bearing raceways are formed on an outer peripheral face of the ball screw nut.
摘要:
In coding a picture to be used as a reference picture by another picture, a motion vector used in inter picture predictive coding is stored into the motion vector storage unit (116). However, the storage of a motion vector is controlled by the coding control unit (110) in such a way that motion vectors of pictures, fewer in number than the number of reference pictures, are stored into the storage unit (116). In the case where direct mode is used in coding a B-picture, if the motion vector to be referred to in coding in direct mode is stored in the motion vector storage unit (116), coding is performed using such motion vector. Further, in the case where the motion vector is not stored in the storage unit (116), coding is performed with the motion vector as “0”, and using a motion vector of a neighboring block.
摘要:
According to a picture coding method of the present invention, a coded picture identified by a picture number is stored, as a reference picture, into a storage unit; commands indicating correspondence between picture numbers and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted. At that time, information indicating the maximum reference index value is coded and included into the coded image signal, and the commands indicating correspondence between at least one picture number and a plurality of reference indices are generated.
摘要:
An electromagnetic absorber (10) for a vehicle including (a) a threaded rod (78) which is disposed on one of a sprung portion and an unsprung portion and which has a threaded groove (76) formed in its outer circumferential portion and an axial groove (90) extending in its axis direction (b) a nut (80) which is rotatably disposed on the other of the sprung portion and the unsprung portion and which is screwed with the threaded rod and (c) a rod-rotation inhibiting member (82) which includes a fitting portion configured to be fitted in the axial groove and which is disposed on the other of the sprung portion and the unsprung portion, the rod-rotation inhibiting member being configured to inhibit the threaded rod from rotating while permitting the threaded rod to move in the axis direction. In the electromagnetic absorber, the threaded groove is not formed at a section of a fitting range at which the fitting portion is fitted in the axial groove when the fitting portion is located at an end of the fitting range that extends in the axis direction on the outer circumferential portion of the threaded rod.
摘要:
A variable length coding method is comprised of: a coefficient value scanning step in which an RL sequence generation unit 203, a reordering unit 202, and a binarization unit 203 scan coefficient values within a block in a predetermined scanning order starting at a higher-frequency component toward a lower-frequency component; and an arithmetic coding step in which an arithmetic coding unit 205 and a table storage unit 204 perform arithmetic coding on the absolute values of the coefficient values according to the scanning order used in the coefficient value scanning step, by switching between probability tables 1˜4 for use, wherein, in the arithmetic coding step, a probability table to be used is switched to another probability table in one direction, when the arithmetic-coded absolute values of the coefficient values include an absolute value exceeding a predetermined threshold value.
摘要:
An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes a reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values.
摘要:
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.
摘要:
A disc spring is provided between a ball screw nut and a hollow shaft, and another disc spring is provided between rolling bearings and a housing. When leftward motion of a screw shaft is stopped and a rotational inertia force is applied to the ball screw nut, these disc springs allow the ball screw nut to rotate to a certain degree.
摘要:
An interpolation frame generation device that generates an interpolation frame that interpolates image frames that are obtained by decoding a coded image signal that is coded by motion compensation, includes a motion vector deriving unit and an interpolation frame generating unit. The motion vector deriving unit acquires a motion compensation vector of a coded block that forms the coded image signal. The interpolation frame generating unit generates the interpolation frame in accordance with the motion vector of the image block that forms an image frame by using the motion compensation vector of the coded block as the motion vector of the image block.