Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus and method for encoding depth image by skipping discrete cosine transform (DCT), and apparatus and method for decoding depth image by skipping DCT

An image encoding and image decoding technology, which is applied in the field of equipment and methods for encoding/decoding depth images by skipping discrete cosine transform, and can solve problems such as boundary line loss and degradation of composite image quality.

Inactive Publication Date: 2013-07-03
SAMSUNG ELECTRONICS CO LTD +1
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these compression methods, the quality of the synthesized image is degraded due to the loss of high-frequency components of the boundary line

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
  • Apparatus and method for encoding depth image by skipping discrete cosine transform (DCT), and apparatus and method for decoding depth image by skipping DCT
  • Apparatus and method for encoding depth image by skipping discrete cosine transform (DCT), and apparatus and method for decoding depth image by skipping DCT
  • Apparatus and method for encoding depth image by skipping discrete cosine transform (DCT), and apparatus and method for decoding depth image by skipping DCT

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Reference will now be made in detail to example embodiments, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like elements throughout. Example embodiments are described below in order to explain the present disclosure by referring to the figures.

[0031] figure 1 A block diagram showing the structure of the image encoding device 100 according to an example embodiment.

[0032] The image encoding apparatus 100 may identify a block from an image, and may encode an original image using a first encoding process or a second encoding process based on a result of the identification, in which residual data will be subjected to discrete cosine transform on the block (DCT). DCT may be performed in the first encoding process, and DCT may be skipped in the second encoding process.

[0033] refer to figure 1 , the image encoding device 100 may include an image prediction unit 110 , an encoding cost determination unit 120 , an encod...

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

No PUM Login to View More

Abstract

An apparatus and method for encoding an image by skipping discrete cosine transform (DCT), and an apparatus and method for decoding an image by skipping the DCT. An image encoding apparatus may classify residual data into groups, and may encode the residual data using a representative value of each of the groups and group identification information that is used to identify the groups.

Description

[0001] This application claims U.S. Provisional Application No. 61 / 581,705 filed with the United States Patent and Trademark Office on December 30, 2011 and Korean Patent Application No. 10-2012-0053223 filed at the Korean Intellectual Property Office on May 18, 2012 For the benefit of priority, the disclosure of each application is hereby incorporated by reference. technical field [0002] Example embodiments disclosed below relate to an apparatus and method for encoding and decoding images, and more particularly, to an apparatus and method for encoding and decoding images without performing discrete cosine transform (DCT) . Background technique [0003] The depth image may represent information about the distance between the camera and objects in the real world captured in the image in the form of a color image. In various three-dimensional (3D) video application areas, depth images can be used as additional data for combining color images in a virtual view. [0004] Ima...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/46H04N7/50
CPCH04N19/597H04N19/176H04N19/147H04N19/12
Inventor 魏浩千李在濬李天扈尧盛
Owner SAMSUNG ELECTRONICS CO LTD