Yeongtaeg Kim Phones & Addresses
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San Jose, CA
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Irvine, CA
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Milpitas, CA
Publications
Us Patents
Small Detail Reservation In Content-Adaptive Quantization
View pageUS Patent:
8295346, Oct 23, 2012
Filed:
Apr 8, 2009
Appl. No.:
12/420763
Inventors:
Zhi Zhou - Irvine CA, US
Yeongtaeg Kim - Irvine CA, US
Yeongtaeg Kim - Irvine CA, US
Assignee:
Samsung Electronics Co., Ltd. - Suwon
International Classification:
H04N 7/12
H04N 11/02
H04N 11/04
G06K 9/36
G06K 9/00
H03M 7/00
H04N 11/02
H04N 11/04
G06K 9/36
G06K 9/00
H03M 7/00
US Classification:
37524003, 382166, 341 61
Abstract:
Video processing systems and methods for preservation of small details in video undergoing quantization is discussed. Small details are preserved by identifying an area of interest within a video frame, determining whether small details are present within the selected portion of the video frame, and further determining whether those small details may be lost during quantization. In the event that small details are present in the selected portion of the video frame and may be lost during quantization, a color-shifting operation may be performed on one or more color components of the selected portion of the video frame, such as luminance, prior to quantization to preserve the small detail. During the color-shifting operation, the values of at least one color component of pixels representing the video frame are shifted such that the pixels extend between at least two quantization levels when quantized. In this manner, small detail is preserved, while also allowing for a reduction in the total bits of information contained in the video frame.
Fade In/Fade-Out Fallback In Frame Rate Conversion And Motion Judder Cancellation
View pageUS Patent:
8269885, Sep 18, 2012
Filed:
Apr 3, 2009
Appl. No.:
12/418528
Inventors:
Zhi Zhou - Irvine CA, US
Yeongtaeg Kim - Irvine CA, US
Yeongtaeg Kim - Irvine CA, US
Assignee:
Samsung Electronics Co., Ltd. - Suwon
International Classification:
H04N 7/01
US Classification:
348441, 348699, 348700, 348722, 348595, 382170, 382236, 382274, 37524012, 375240
Abstract:
A system and method for determining a pixel characteristic of pixels in interpolated frames. Preceding and successive frames are evaluated to determine if there is a frame-wide change occurring to the pixels. To the extent there is a frame-wide change, the pixel characteristic in interpolated frames is accommodated by the frame-wide change. In one implementation, frame-wide changes in luminance, such as fade in and fade out, are detected and the pixel characteristic of pixels in the interpolated frame is determined based at least in part on fallback techniques rather than motion compensation interpolation.