Heng Zhang

US Patent:

8059174, Nov 15, 2011

Filed:

Sep 15, 2006

Appl. No.:

11/521883

Inventors:

Richard A. Mann - Torrance CA, US
Selim Bencuya - Irvine CA, US
Jiafu Luo - Irvine CA, US
Alexandre G. Grigoriev - Irvine CA, US
Heng Zhang - Lake Forest CA, US
Miaohong Shi - Irvine CA, US
Robert Blair - Los Altos Hills CA, US
Max Safai - San Juan Capistrano CA, US

Assignee:

ESS Technology, Inc. - Fremont CA

International Classification:

H04N 9/083
H04N 3/14
H04N 5/335
H04N 9/04

US Classification:

348273, 3482221

Abstract:

There is provided a CMOS imager system for providing a viewable image having increased dynamic range including an image sensor including a number of sets of pixels. Each set of pixels is configured to receive one of a number of exposures and to generate image data corresponding to the received exposure in the interleaved mode. The image sensor is configured to operate in either an interleaved mode or a non-interleaved mode and to output the image data generated by each set of pixels as a frame of interleaved image data in the interleaved mode. The imager system further includes an interleaved image pipeline in communication with the image sensor, where the interleaved image pipeline is configured to receive the interleaved image data from the image sensor, combine the image data generated by each set of pixels corresponding to one of the exposures to form the viewable image.

US Patent:

20220360711, Nov 10, 2022

Filed:

Jul 25, 2022

Appl. No.:

17/872529

Inventors:

- San Mateo CA, US
Sylvain Leroy - Bures-sur-Yvette, FR
Heng Zhang - San Mateo CA, US
Ingrid Cotoros - San Mateo CA, US

International Classification:

H04N 5/232
H04N 5/235

Abstract:

A camera mode to use for capturing an image or video is selected by estimating high dynamic range (HDR), motion, and light intensity with respect to a scene of the image or video to capture. An image capture device includes a HDR estimation unit to detect whether HDR is present in a scene of an image to capture, a motion estimation unit to determine whether motion is detected within the scene, and a light intensity estimation unit to determine whether a scene luminance for the scene meets a threshold. A mode selection unit selects a camera mode to use for capturing the image based on output of the HDR estimation unit, the motion estimation unit, and the light intensity estimation unit. An image sensor captures the image according to the selected camera mode.

US Patent:

20210360157, Nov 18, 2021

Filed:

Jun 6, 2019

Appl. No.:

17/277430

Inventors:

- San Mateo CA, US
Sylvain Leroy - Bures-sur-Yvette, FR
Heng Zhang - San Mateo CA, US
Ingrid Cotoros - San Mateo CA, US

International Classification:

H04N 5/232
H04N 5/235

Abstract:

A camera mode to use for capturing an image or video is selected by estimating high dynamic range (HDR), motion, and light intensity with respect to a scene of the image or video to capture. An image capture device includes a HDR estimation unit to detect whether HDR is present in a scene of an image to capture, a motion estimation unit to determine whether motion is detected within the scene, and a light intensity estimation unit to determine whether a scene luminance for the scene meets a threshold. A mode selection unit selects a camera mode to use for capturing the image based on output of the HDR estimation unit, the motion estimation unit, and the light intensity estimation unit. An image sensor captures the image according to the selected camera mode.