公开(公告)号：US20180349705A1

公开(公告)日：2018-12-06

申请号：US15613130

申请日：2017-06-02

Applicant: Apple Inc.

Inventor： Jae Hoon Kim ,  Ming Chen ,  Hang Yuan ,  Jiefu Zhai ,  Dazhong Zhang ,  Xiaosong Zhou ,  Chris Chung ,  Hsi-Jung Wu

IPC: G06K9/00 ,  G06T7/292 ,  G06K9/32

Abstract: Techniques are disclosed for managing display of content from multi-view video data. According to these techniques, an object may be identified from content of the multi-view video. The object's location may be tracked across a sequence of multi-view video. The technique may extract a sub-set of video that is contained within a view window that is shifted in an image space of the multi-view video in correspondence to the tracked object's location. These techniques may be implemented either in an image source device or an image sink device.

公开(公告)号：US20170359586A1

公开(公告)日：2017-12-14

申请号：US15179728

申请日：2016-06-10

Applicant: Apple Inc.

Inventor： Jingteng Xue ,  Yeping Su ,  Chris Chung ,  Xiaosong Zhou ,  Hsi-Jung Wu

IPC: H04N19/167 ,  H04N19/70 ,  H04N19/44 ,  H04N19/40

CPC classification number: H04N19/167 ,  H04N19/115 ,  H04N19/124 ,  H04N19/162 ,  H04N19/17 ,  H04N19/33 ,  H04N19/40 ,  H04N19/44 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85

Abstract: Video coding techniques are disclosed for resource-limited destination display devices. Input video data may be coded by converting a first representation of the input video to a resolution of a destination display and base layer coding the converted representation. Additionally, a region of interest may be predicted from within the input video. The predicted ROI may be converted to a resolution of the destination display, and the converted ROI may be enhancement layer coded. The base layer coded data and the enhancement layer data may be transmitted to the destination display where the coded base layer data is decoded and displayed until a zoom event occurs. When a zoom event occurs, both the coded base layer data and the coded enhancement layer data may be decoded and displayed. Thus, the switchover from a first field of view to an ROI view may be performed quickly.

公开(公告)号：US20170359575A1

公开(公告)日：2017-12-14

申请号：US15613885

申请日：2017-06-05

Applicant: Apple Inc.

Inventor： Dazhong Zhang ,  Hang Yuan ,  Peikang Song ,  Jae Hoon Kim ,  Xing Wen ,  Sudeng Hu ,  Xiaosong Zhou ,  Chris Chung ,  Hsi-Jung Wu

IPC: H04N19/103 ,  H04N19/176 ,  H04N19/11 ,  H04N19/186 ,  H04N19/61 ,  H04N19/50 ,  G06T9/00 ,  H04N19/136 ,  H04N19/196

CPC classification number: H04N19/11 ,  H04N19/105 ,  H04N19/119 ,  H04N19/136 ,  H04N19/17 ,  H04N19/176 ,  H04N19/593

Abstract: A video coder defines multiple fidelity regions in different spatial areas of a video sequence, each of which may have different fidelity characteristics. The coder may code the different representations in a common video sequence. Where prediction data crosses boundaries between the regions, interpolation may be performed to create like kind representations between prediction data and video content being coded.

公开(公告)号：US11166027B2

公开(公告)日：2021-11-02

申请号：US15614881

申请日：2017-06-06

Applicant: Apple Inc.

Inventor： Yeping Su ,  Xingyu Zhang ,  Chris Chung ,  Jun Xin ,  Hsi-Jung Wu

IPC: H04B1/66 ,  H04N19/136 ,  H04N19/103 ,  G06N20/00 ,  H04N19/179 ,  H04N21/845 ,  H04N21/2343

Abstract: Techniques are disclosed by which a coding parameter is determined to encode video data resulting in encoded video data possessing a highest possible video quality. Features may be extracted from an input video sequence. The extracted features may be compared to features described in a model of coding parameters generated by a machine learning algorithm from reviews of previously-coded videos, extracted features of the previously-coded videos, and coding parameters of the previously-coded videos. When a match is detected between the extracted features of the input video sequence and extracted features represented in the model, a determination may be made as to whether coding parameters that correspond to the matching extracted feature correspond to a tier of service to which the input video sequence is to be coded. When the coding parameters that correspond to the matching extracted feature correspond to the tier of service to which the input video sequence is to be coded, the input video sequence may be coded according to the coding parameters.

公开(公告)号：US20170359580A1

公开(公告)日：2017-12-14

申请号：US15614881

申请日：2017-06-06

Applicant: Apple Inc.

Inventor： Yeping Su ,  Xingyu Zhang ,  Chris Chung ,  Jun Xin ,  Hsi-Jung Wu

IPC: H04N19/139 ,  H04N19/103 ,  H04N19/44 ,  G06N99/00 ,  H04N21/845

CPC classification number: G06N20/00 ,  H04N19/103 ,  H04N19/136 ,  H04N19/179 ,  H04N21/23439 ,  H04N21/8456

Abstract: Techniques are disclosed by which a coding parameter is determined to encode video data resulting in encoded video data possessing a highest possible video quality. Features may be extracted from an input video sequence. The extracted features may be compared to features described in a model of coding parameters generated by a machine learning algorithm from reviews of previously-coded videos, extracted features of the previously-coded videos, and coding parameters of the previously-coded videos. When a match is detected between the extracted features of the input video sequence and extracted features represented in the model, a determination may be made as to whether coding parameters that correspond to the matching extracted feature correspond to a tier of service to which the input video sequence is to be coded. When the coding parameters that correspond to the matching extracted feature correspond to the tier of service to which the input video sequence is to be coded, the input video sequence may be coded according to the coding parameters.

公开(公告)号：US20170353704A1

公开(公告)日：2017-12-07

申请号：US15611636

申请日：2017-06-01

Applicant: Apple Inc.

Inventor： Yeping Su ,  Chris Chung ,  Hsi-Jung Wu ,  Xiaosong Zhou ,  Jun Xin ,  Jun Xu

IPC: H04N9/64 ,  G06T5/00 ,  H04N5/58

Abstract: Embodiments of the present disclosure provide techniques for environment aware supervised HDR tone mapping. According to those techniques, responsive to metadata provided with HDR source video data, the received metadata may be compared to sensor date representing viewing conditions at a display device. Tone mapping corrections to the HDR source video data may be derived from the comparison of the received metadata to the sensor data. The HDR source video data may be altered based on the tone mapping corrections. The altered HDR source video data may be used to drive the display device.