Inverse discrete cosine transform lookup fast algorithm with variable complexity
A technology of discrete cosine and fast algorithm, which is applied in television, electrical components, digital video signal modification, etc., can solve problems such as difficult realization of parallelism and difficult coupling of modules, so as to save interface cache and parameter transmission, speed up implementation, Reduce the effect of repeated calculations
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0071] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0072] The present invention utilizes the characteristics of the dequantized DCT coefficient matrix F (u, v) to organize technical solutions, that is, the present invention is based on the fact that there are a large number of zero values in the dequantized DCT coefficient matrix F (u, v), and there are many non-zero coefficients Focus on the characteristics of the upper left corner of the matrix; the DCT coefficient matrix F(u, v) is disassembled, and the IDCT is completed only for the non-zero coefficient operation in the matrix to obtain the restored matrix, which can greatly reduce the amount of calculation. It mainly includes the following steps:
[0073] (1) Transform the DCT coefficient matrix F after inverse quantization into the form of the sum of multinomial matrices;
[0074] (2) Carry out inverse discrete cosine t...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com