Abstract: A method and system for compressing motion image information, which can compress data that can be subjected to predictive encoding. An image within a frame is divided into blocks before an inter-frame compression procedure begins, and each block is approximated with a single plane represented by at least three components for pixels within each block. Pixels between the original image and the image expanded after compressed can be compared, and when a pixel that causes greater difference than a given parameter to occur exists, intra-frame compression is performed using a smaller block size. Furthermore, when the respective I blocks, which are spatially divided, are dispersed between each frame along the temporal axis, no I block is inserted into any block within the frame that has been updated due to difference between frames being greater than parameter P during a designated period of time.

Abstract: A method and system are disclosed for compressing motion image information by means of predictive coding with a high compression ratio while maintaining high image quality. An image in each frame is divided into blocks in advance, and each of all blocks is approximated by (replaced with) a single plane defined by three data representing the magnitude of the intensity of the block, the block-to-block gradient of the intensity in the x direction, and the block-to-block gradient of the intensity in the y direction. Furthermore, corresponding pixels are compared with each other in each block consisting of n×m pixels between frames, and differential information is generated according to the comparison result. Pixels indicated as being not greater than a parameter is treated (deleted) as pixels having no difference between frames. Information compression is performed for pixels indicated as being greater than the parameter.

Abstract: A method and system are disclosed for compressing motion image information by means of predictive coding with a high compression ratio while maintaining high image quality. An image in each frame is divided into blocks in advance, and each of all blocks is approximated by (replaced with) a single plane defined by three data representing the magnitude of the intensity of the block, the block-to-block gradient of the intensity in the x direction, and the block-to-block gradient of the intensity in the y direction. Furthermore, corresponding pixels are compared with each other in each block consisting of n×m pixels between frames, and differential information is generated-according to the comparison result. Pixels indicated as being not greater than a parameter is treated (deleted) as pixels having no difference between frames. Information compression is performed for pixels indicated as being greater than the parameter.

Abstract: A motion image distributing system having: file dividing means A for dividing a motion image file for predetermined time into a plurality of files for short time on the server side; file group classifying means B for classifying a plurality of the files divided by file dividing means A into a plurality of file groups F while presuming the degree of a communicating speed; and file group transmitting means C for transmitting file groups F, which are classified by file group classifying means B, stepwise in accordance with the discrimination for the communicating speed on the recipient side, and file group transmitting means C has communicating speed monitoring means D for monitoring the communicating speed of file groups F by itself, when loading file groups F on the recipient side, and allowing file groups F to be sequentially loaded in accordance with a margin.

Abstract: A method and system for compressing motion image information, which can compress data that can be subjected to predictive encoding. An image within a frame is divided into blocks before an inter-frame compression procedure begins, and each block is approximated with a single plane represented by at least three components for pixels within each block. Pixels between the original image and the image expanded after compressed can be compared, and when a pixel that causes greater difference than a given parameter to occur exists, intra-frame compression is performed using a smaller block size. Furthermore, when the respective I blocks, which are spatially divided, are dispersed between each frame along the temporal axis, no I block is inserted into any block within the frame that has been updated due to difference between frames being greater than parameter P during a designated period of time.

Abstract: A motion image information compression system having an entropy coding circuit for reducing redundant information between frames is capable of compressing information such as image information or sound information by means of predictive coding, with a high compression ratio and at a high speed while maintaining high image and sound quality. In this system, comparison of spatially or temporally adjacent pixels to each other and output of differential information are made by the entropy coding circuit. Further, a bit map information storage circuit compares pixels t and corresponding pixels t−1 to each other between frames, detects an area where the absolute values of pixel differences are greater than a given parameter, and stores the detected area and the other area into the form of a 1-bit bit map.

Abstract: A method and system are disclosed for compressing motion image information by means of predictive coding with a high compression ratio while maintaining high image quality. An image in each frame is divided into blocks in advance, and each of all blocks is approximated by (replaced with) a single plane defined by three data representing the magnitude of the intensity of the block, the block-to-block gradient of the intensity in the x direction, and the block-to-block gradient of the intensity in the y direction. Furthermore, corresponding pixels are compared with each other in each block consisting of n×m pixels between frames, and differential information is generated according to the comparison result. Pixels indicated as being not greater than a parameter is treated (deleted) as pixels having no difference between frames. Information compression is performed for pixels indicated as being greater than the parameter.

Abstract: A method and system for compressing dynamic image information includes a divider which divides each frame of dynamic image data of 16 frames into 4.times.4 pixel blocks that are non-overlapping. A first zigzag scanner arranges each of the blocks in the order of the frames to form a 16.times.16 block. A two-dimensional orthogonal transformer subjects the 16.times.16 block to a two-dimensional DCT to encode the units of the block in a frequency band. A quantizer multiplies the 16.times.16 data by quantization coefficients to approximate the value of the data at discrete levels. A second scanner stores the quantized DCT data as a one-dimensional array from low to high frequency components. A variable length encoder then encodes the scanned data.