Title:
ENCODER, ENCODING SYSTEM, AND ENCODING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/168520
Kind Code:
A1
Abstract:
An encoder, an encoding system, and an encoding method. The encoder comprises: a first interface circuit (71), used for reading from an external memory statistical information of a pre-generated image to be encoded; a code rate control circuit (75), used for determining a target code rate of image blocks in the image to be encoded on the basis of the statistical information of the image to be encoded; a first encoding circuit (74), used for implementing tier-1 encoding of the image blocks to obtain a code stream of the image blocks; and a second encoding circuit (76), used for implementing tier-2 encoding of the code stream of the image blocks on the basis of the target code rate in order to truncate the code stream of the image blocks. The present system pre-calculates statistical information of the image blocks in the image to be encoded and, on the basis of the statistical information, truncates the code stream of the image blocks, reducing the system bandwidth demands of the encoder.
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Inventors:
ZHANG JIANHUA (CN)
HAN BIN (CN)
ZHAO WENJUN (CN)
HAN BIN (CN)
ZHAO WENJUN (CN)
Application Number:
PCT/CN2019/075746
Publication Date:
August 27, 2020
Filing Date:
February 21, 2019
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H04N1/64; G06T9/00
Foreign References:
| CN101102502A | 2008-01-09 | |||
| CN103051901A | 2013-04-17 | |||
| CN109076212A | 2018-12-21 | |||
| EP0670663A1 | 1995-09-06 | |||
| TW201023632A | 2010-06-16 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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