Adaptive quantization for enhancement layer video coding
S Regunathan, S Sun, C Tu, CL Lin - US Patent 8,897,359, 2014 - Google Patents
Techniques and tools for encoding enhancement layer video with quantization that varies
spatially and/or between color channels are presented, along with corresponding decoding …
spatially and/or between color channels are presented, along with corresponding decoding …
Adaptive video encoding using a perceptual model
CL Lin, M **a, P Hsu, SJ Wu - US Patent 8,422,546, 2013 - Google Patents
US8422546B2 - Adaptive video encoding using a perceptual model - Google Patents
US8422546B2 - Adaptive video encoding using a perceptual model - Google Patents Adaptive …
US8422546B2 - Adaptive video encoding using a perceptual model - Google Patents Adaptive …
Adjusting quantization to preserve non-zero AC coefficients
P Hsu, CL Lin, X Zuo - US Patent 8,130,828, 2012 - Google Patents
Set QP for macroblock such of at least one of the plural blocks being Zero. For example,
identifying the threshold quantization step size comprises identifying n top AC coefficients in …
identifying the threshold quantization step size comprises identifying n top AC coefficients in …
Quantization adjustment based on texture level
X Zuo, CL Lin - US Patent 7,995,649, 2011 - Google Patents
720 the current Smooth region. An encoder determines a differen tial quantization interval
for a sequence, the interval compris ing an interval number. The interval constrains the …
for a sequence, the interval compris ing an interval number. The interval constrains the …
Image processing device and image processing method
J Tanaka - US Patent 9,706,205, 2017 - Google Patents
An image processing device including an acquiring section configured to acquire
quantization matrix parameters from an encoded stream in which the quantization matrix …
quantization matrix parameters from an encoded stream in which the quantization matrix …
Image coding apparatus and image coding method
K Saigo, T Juri, H Ohgose, K Arimura… - US Patent App. 12 …, 2008 - Google Patents
The present invention solves the problem, and it is an object of the present invention to
provide an image coding apparatus and an image coding method capable of preventing …
provide an image coding apparatus and an image coding method capable of preventing …
Regions of interest for quality adjustments
CL Lin, MC Lee, S Spears, PL Garrett… - US Patent …, 2012 - Google Patents
Quality settings established by an encoder are adjusted based on information associated
with regions of interest (“ROIs). For example, quantization step sizes can be reduced (to …
with regions of interest (“ROIs). For example, quantization step sizes can be reduced (to …
Adaptive selection of picture-level quantization parameters for predicted video pictures
C Chang, CL Lin - US Patent 8,331,438, 2012 - Google Patents
US8331438B2 - Adaptive selection of picture-level quantization parameters for predicted
video pictures - Google Patents US8331438B2 - Adaptive selection of picture-level …
video pictures - Google Patents US8331438B2 - Adaptive selection of picture-level …
Quantization adjustments for DC shift artifacts
X Zuo, CL Lin, P Hsu - US Patent 8,503,536, 2013 - Google Patents
(US) 5,301.242 A 4, 1994 Gonzales et al. 5,303,058 A 4, 1994 Fukuda et al.(*) Notice:
Subject to any disclaimer, the term of this 5,317,396 A 5/1994 Fu**ami patent is extended or …
Subject to any disclaimer, the term of this 5,317,396 A 5/1994 Fu**ami patent is extended or …
Estimating sample-domain distortion in the transform domain with rounding compensation
C Chang, CL Lin, S Regunathan - US Patent 8,059,721, 2011 - Google Patents
525 but retains the computational advantages of performing the estimation in the transform
domain. Rounding compensation includes, for example, looking up an index (from a de …
domain. Rounding compensation includes, for example, looking up an index (from a de …