Apparatus for calculating absolute difference value, and motion estimation apparatus and motion picture encoding apparatus

A technology of absolute difference and motion estimation, applied in image communication, television, electrical components, etc., can solve the problems of increased load and large number of SAD computing units

Inactive Publication Date: 2005-06-08
SAMSUNG ELECTRONICS CO LTD
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Also, because the conventional SAD calculation unit requires at least two adders in each absolute difference calculator, a large number of adders is required, and the load of the SAD calculation unit increases

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 for calculating absolute difference value, and motion estimation apparatus and motion picture encoding apparatus
  • Apparatus for calculating absolute difference value, and motion estimation apparatus and motion picture encoding apparatus
  • Apparatus for calculating absolute difference value, and motion estimation apparatus and motion picture encoding apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the invention will now be described in detail, examples of which are shown in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0028] Figure 5 is a schematic diagram of a SAD calculation unit for a 2×2 block according to the first embodiment of the present invention. In the first embodiment of the present invention, a SAD calculation unit for a 2×2 block is described for convenience of explanation. However, those skilled in the art will understand how to apply the SAD computation unit to 16x16 blocks.

[0029] Figure 5 The shown SAD calculation unit includes: a first difference calculation unit 510, a second difference calculation unit 530, a third difference calculation unit 550, a fourth difference calculation unit 570, a first pseudo absolute value calculation unit 520, a Second pseudo absolute val...

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 for calculating an absolute difference that promotes an efficient structure of a SAD calculation unit having a tree structure, and a motion estimation apparatus and a moving image encoding apparatus using the apparatus for calculating an absolute difference. The number of adders required for each absolute difference calculation unit can be reduced by performing calculation after inputting output carries output from a plurality of pseudo absolute difference calculation units to adders in the adder tree.

Description

[0001] This application claims priority to Korean Patent Application No. 2003-86747 filed with the Korean Intellectual Property Office on December 2, 2003, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to an apparatus for calculating an absolute difference and a motion estimation apparatus using the apparatus for calculating an absolute difference, and more particularly, to an apparatus for calculating an absolute difference which facilitates An efficient structure of an absolute difference calculation unit, and a motion estimation device using the device for calculating an absolute difference. Background technique [0003] Since digital video recorders (DVRs) and personal video recorders (PVRs) have been widely used recently, a great deal of research and development on image compression is ongoing. Because conventional DVRs and PVRs compress input images...

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): H04N19/50H04N19/42H04N19/51
CPCH04N19/43H04N19/51H04N19/61
Inventor 宋秉哲
Owner SAMSUNG ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap