Still image encoder
AssigneeFujitsu Limited
InventorTsuyoshi Miura
Life of this patent
Estimating the term…
Abstract
According to the still image encoder, as to frame data inputted from the digital video camera, odd field data is held in the odd field memory and even field data is held in the even field memory. The control section divides odd field data and even field data into predetermined blocks, calculates the absolute value total of differences between each pixel data in odd field data and each pixel data in even field data, and compares the total with the predetermined threshold. The DMA controller transfers pixel data of the block in the odd field data to the even field memory when the total is larger than the threshold. The control section codes frame data consisting of odd field data and even field data into JPEG data.
Claims7
A still image encoder comprising:
- moving image data input means for inputting moving data consisting of frame data in which first field data and second field data are interlaced;
- first field data holding means for holding the first field data;
- second field data holding means for holding the second field data to be one frame data together with the first field data held by the first field data holding means;
- moving object area detecting means for detecting data area for a image which moves dynamically among frame data consisting of the first field data held by the first field data holding means and the first field data held by the second field data holding means;
- data transfer means for extracting data in the data area in the first field data held by the first field data holding means and for transferring the data to the second field data holding means;
- still image data generating means for generating still image data by interlacing the first field data held by the first field data holding means and the second field data held by the second field data holding means;
- and
- still image data coding means for coding the still image data.
Dependencies are inferred from the claim text.