Title:
IMAGE ENCODER, IMAGE CODING METHOD, IMAGE CODING PROGRAM, TRANSMITTER, TRANSMISSION METHOD, AND TRANSMISSION PROGRAM, AND IMAGE DECODER, IMAGE DECODING METHOD, IMAGE DECODING PROGRAM, RECEIVER, RECEPTION METHOD, AND RECEPTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2013/145773
Kind Code:
A1
Abstract:
A quantization parameter determination unit (102) sets the quantization parameters of a block. An orthogonal transform and quantization unit (108) quantizes the image signal of a block based on quantization parameters, compresses, and codes the image signal. A PCM coding unit (104) codes the uncompressed block image signal. A deblocking filter (111) uses the quantization parameter values set for each of the blocks on both sides of a block boundary to calculate the filtering strength, and applies a filtering process to the blocks on both sides of the block boundary. The deblocking filter (111) outputs the input signal before filtering without any modification as the output signal if the block is a coded uncompressed block.
Inventors:
NAKAMURA HIROYA (JP)
FUKUSHIMA SHIGERU (JP)
NISHITANI MASAYOSHI (JP)
FUKUSHIMA SHIGERU (JP)
NISHITANI MASAYOSHI (JP)
Application Number:
PCT/JP2013/002170
Publication Date:
October 03, 2013
Filing Date:
March 29, 2013
Export Citation:
Assignee:
JVC KENWOOD CORP (JP)
International Classes:
H04N7/26
Other References:
KEIICHI CHONO ET AL.: "Proposal of enhanced PCM coding in HEVC", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 5TH MEETING, 16 March 2011 (2011-03-16), GENEVA, CH
Attorney, Agent or Firm:
MORISHITA, SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
Download PDF: