Peng T Lin

US Patent:

7643305, Jan 5, 2010

Filed:

Mar 7, 2008

Appl. No.:

12/044841

Inventors:

Peng Cheng Lin - Cupertino CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G06F 1/16

US Classification:

361749

Abstract:

Stiffeners in are provided in a flexible printed circuit to prevent damages to leads and traces of the flexible circuit caused by bending, folding and other stresses.

US Patent:

7808558, Oct 5, 2010

Filed:

Apr 30, 2007

Appl. No.:

11/799345

Inventors:

Peng Lin - Pleasanton CA, US

Assignee:

Samsung Electronics Co., Ltd. - Suwon

International Classification:

H04N 5/00
H04N 5/21
H04N 9/68
G06K 9/20
G06K 9/40

US Classification:

348631, 348606, 348610, 348612, 348621, 348624, 348627, 348630, 348645, 382261, 382266

Abstract:

A superior Color Transient Improvement technique is adaptive to the local image features, so that more natural color edge transition improvement can be accomplished. A gain control function is provided that depends on the local image feature so that different regions of the image can be treated differently. Further, a correction signal is controlled in such a way (by the local image feature) that neither undershoot nor overshoot occurs, eliminating the need for post-processing for undershoot/overshoot removal.

US Patent:

7865035, Jan 4, 2011

Filed:

Oct 6, 2005

Appl. No.:

11/246634

Inventors:

Peng Lin - Pleasanton CA, US

Assignee:

Samsung Electronics Co., Ltd. - Suwon

International Classification:

G06K 9/40
G06K 9/00
H04N 7/12
H04N 11/02
H04N 11/04

US Classification:

382275, 382252, 382261, 37524027, 37524029

Abstract:

A video quality adaptive coding artifact reduction system has a video quality analyzer, an artifact reducer, and a filter strength controller. The video quality analyzer employs input video quality analysis to control artifact reduction. The video quality analyzer accesses the video quality of the decoded video sequence to estimate the input video quality. The filter strength controller globally controls the filter strength of the artifact reducer based on the video quality estimate by the video quality analyzer. For low quality input video, the filter strength controller increases the artifact reduction filter strength to more efficiently reduce the artifact. For high quality input video, the filter strength controller decreases the artifact reduction filter strength to avoid blurring image detail.

US Patent:

8081224, Dec 20, 2011

Filed:

May 7, 2008

Appl. No.:

12/149723

Inventors:

Peng Lin - Pleasanton CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

H04N 5/228
H04N 5/235
H04N 5/262
G06K 9/40

US Classification:

34820899, 3482081, 3482084, 34820812, 348239, 348362, 348241, 382260

Abstract:

A method and apparatus for image stabilization while mitigating the amplification of image noise by using a motion adaptive system employing spatial and temporal filtering of pixel signals from multiple captured frames of a scene.

US Patent:

8184705, May 22, 2012

Filed:

Jun 25, 2008

Appl. No.:

12/145789

Inventors:

Peng Lin - Pleasanton CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

H04N 7/12
H04N 11/04

US Classification:

37524016, 3484021, 3484131, 386269

Abstract:

A method and apparatus for filtering video data. First and second frames of the video data are stored. Motion adapted spatio-temporal filter (MASTF) pixel values of the second frame are calculated using pixel values of the first and second frames. The second frame is compared to the first frame to estimate motion vectors (MVs) for the second frame. Pixel MV error level indicators for the second frame are determined using the pixel values of the first and second frames and the MVs of pixels in the second frame. Motion compensated temporal filter (MCTF) pixel values of the second frame are calculated using the pixel values of the first and second frames and the MVs of pixels in the second frame. For each pixel in the second frame, a filtered pixel value is calculated using its MASTF and MCTF pixel values and its pixel MV error level indicator.

US Patent:

8325227, Dec 4, 2012

Filed:

Jul 15, 2008

Appl. No.:

12/173327

Inventors:

Peng Lin - Pleasanton CA, US
Todd Sachs - Palo Alto CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

H04N 7/18

US Classification:

348143, 348149, 348155, 37524002, 37524024

Abstract:

A non-frame-based motion detection method and apparatus for imagers requires only a few line buffers and little computation. The non-frame-based, low cost motion detection method and apparatus are well suited for “system-a-chip” (SOC) imager implementations.

US Patent:

8346008, Jan 1, 2013

Filed:

Jun 9, 2009

Appl. No.:

12/480970

Inventors:

Peng Lin - Pleasanton CA, US

Assignee:

Aptina Imaging Corporation - Grand Cayman

International Classification:

G06K 9/40
H04N 5/217

US Classification:

382274, 382260, 348241

Abstract:

This is generally directed to systems and methods for noise reduction in high dynamic range (“HDR”) imaging systems. In some embodiments, multiple images of the same scene can be captured, where each of the images is exposed for a different amount of time. An HDR image may be created by suitably combining the images. However, the signal-to-noise ratio (“SNR”) curve of the resulting HDR image can have discontinuities in sections of the SNR curve corresponding to shifts between different exposure times. Accordingly, in some embodiments, a noise model for the HDR image can be created that takes into account these discontinuities in the SNR curve. For example, a noise model can be created that smoothes the discontinuities of the SNR curve into a continuous function. This noise model may then be used with a Bayer Filter or any other suitable noise filter to remove noise from the HDR image.

US Patent:

8391598, Mar 5, 2013

Filed:

Jan 5, 2011

Appl. No.:

12/985310

Inventors:

Peng Lin - Pleasanton CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

G06K 9/00

US Classification:

382167, 382162, 382260

Abstract:

Adaptive local tone mapping may be used to convert a high dynamic range image to a low dynamic range image. Tone mapping may be performed on an on a Bayer domain image. A high dynamic range image may be filtered to produce a luminance signal. An illumination component of the luminance signal may be compressed. A reflectance component of the luminance signal may be sharpened. After the luminance signal has been processed, it may be used in producing an output image in the Bayer domain that has a lower dynamic range than the input image. The output Bayer domain image may be demosaiced to produce an RGB image. Tone-mapping may be performed with a tone-mapping processor.