Apparatus and method for image processing, compression, decompression, transfer, transmission, and reception, and program and display device
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of image processing device and compression method, which is applied in the field of transmission, sending and receiving devices, image processing, decompression, and compression, and can solve problems such as granular quality degradation
Inactive Publication Date: 2007-04-11
NEC CORP
View PDF1 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0020] However, in the conventional system disclosed in Patent Documen
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0104] The present invention will now be described in detail in conjunction with preferred embodiments with reference to the accompanying drawings.
[0105] In traditional image processing, the grainy or rough appearance of images is caused by errors generated before or after image processing, which also include strong high spatial frequency components. Errors of high spatial frequency components are conspicuous in slight gradation image areas and flat gradation image areas, but on the other hand, are not conspicuous in large gradation change areas such as edge portions or thin lines. Also, as the compression rate becomes higher, the error of the high spatial frequency component becomes larger. The compression ratio used to reduce the number of bit-planes in error-prone regions is determined to be smaller than in error-insignificant regions, and the compression ratio difference between these regions is determined by another method to prevent granular quality degradation. meth...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
Image processing, compressing, decompressing, transmitting, sending and receiving devices and methods, their programs and a displaying device, in which a bit plane number is increased again after the bit plane number is first reduced to enable it to largely improve or remove granular quality deterioration in a mild gradation area and a plain gradation area within an image. For data compression, a first image processor includes a block coder for executing a reversible compression of image data of pixels of a raster image and a bit plane compressor for conducting an irreversible compression of the image data. For data decompression, a second image processor includes a bit plane decompressor for carrying out an irreversible decompression of the compressed data and a block decoder for executing a reversible decoding of the compressed data, to output decompressed image data to a display for displaying a reproduced raster image. The compressed data is once stored in a memory.
Description
technical field [0001] The present invention relates to image processing, compression, decompression, transmission, sending and receiving devices and their methods, programs and display devices, and in particular to image processing devices, image compression devices, image decompression devices, image transmission devices, image sending devices, Image receiving device, display device, and image processing method, image compression method, image decompression method, image transmission method, image transmission method, image reception method, and program thereof, for use in image compression and decompression processing according to storage The storage capacity of the display for the memory of raster images to achieve high image quality, greatly improve image quality, greatly improve or eliminate grainy quality degradation, and improve the efficiency of raster image transfer from computer to display. Background technique [0002] Currently, a method for transferring a raste...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more