公开(公告)号：US20230016350A1

公开(公告)日：2023-01-19

申请号：US17948231

申请日：2022-09-20

Applicant: Apple Inc.

Inventor： Liran Fishel ,  Asaaf Metuki ,  Chuhan Min ,  Wai Yu Trevor Tsang

IPC: G06K9/62 ,  G06V10/40 ,  G06V10/24 ,  G06V10/75

Abstract: Embodiments relate to generating keypoint descriptors of the keypoints. An apparatus includes a pyramid image generator circuit and a keypoint descriptor generator circuit. The pyramid image generator circuit generates an image pyramid from an input image. The keypoint descriptor generator circuit determines intensity values of sample points in the pyramid images for a keypoint and determines comparison results of comparisons between the intensity values of pairs of the sample points. The keypoint descriptor generator circuit generate bit values defining the comparison results for the keypoint, each bit value corresponding with one of the comparison results, and generate a sequence of the bit values defining an ordering of the comparison results based on importance levels of the comparisons, where the importance level of each comparison defines how much the comparison is representative of features. Bit values for comparisons having the lowest importance levels may be excluded from the sequence.

公开(公告)号：US20140253564A1

公开(公告)日：2014-09-11

申请号：US14286593

申请日：2014-05-23

Applicant: Apple Inc.

Inventor： David J. Redman ,  Wai Yu Trevor Tsang

IPC: G06F3/14 ,  G09G5/36 ,  G09G5/00

CPC classification number: G06F3/1438 ,  G09G5/006 ,  G09G5/363 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2360/06 ,  G09G2360/08 ,  G09G2370/04

Abstract: Systems and methods include an electronic device having multiple GPUs and a GPU power control process that controls switching between a first GPU and a second GPU, such as a high performance GPU. The electronic device uses the first GPU when an external device is coupled to an adapter connected to the electronic device.

Abstract translation: 系统和方法包括具有多个GPU的电子设备和用于控制第一GPU和第二GPU（例如高性能GPU）之间的切换的GPU功率控制过程。 当外部设备耦合到连接到电子设备的适配器时，电子设备使用第一GPU。

公开(公告)号：US11475240B2

公开(公告)日：2022-10-18

申请号：US17206901

申请日：2021-03-19

Applicant: Apple Inc.

Inventor： Liran Fishel ,  Assaf Metuki ,  Chuhan Min ,  Wai Yu Trevor Tsang

IPC: G06K9/46 ,  G06K9/62 ,  G06V10/40 ,  G06V10/24 ,  G06V10/75

Abstract: Embodiments relate to generating keypoint descriptors of the keypoints. An apparatus includes a pyramid image generator circuit and a keypoint descriptor generator circuit. The pyramid image generator circuit generates an image pyramid from an input image. The keypoint descriptor generator circuit determines intensity values of sample points in the pyramid images for a keypoint and determines comparison results of comparisons between the intensity values of pairs of the sample points. The keypoint descriptor generator circuit generate bit values defining the comparison results for the keypoint, each bit value corresponding with one of the comparison results, and generate a sequence of the bit values defining an ordering of the comparison results based on importance levels of the comparisons, where the importance level of each comparison defines how much the comparison is representative of features. Bit values for comparisons having the lowest importance levels may be excluded from the sequence.

公开(公告)号：US20220300749A1

公开(公告)日：2022-09-22

申请号：US17206901

申请日：2021-03-19

Applicant: Apple Inc.

Inventor： Liran Fishel ,  Assaf Metuki ,  Chuhan Min ,  Wai Yu Trevor Tsang

IPC: G06K9/62 ,  G06K9/46 ,  G06K9/32

Abstract: Embodiments relate to generating keypoint descriptors of the keypoints. An apparatus includes a pyramid image generator circuit and a keypoint descriptor generator circuit. The pyramid image generator circuit generates an image pyramid from an input image. The keypoint descriptor generator circuit determines intensity values of sample points in the pyramid images for a keypoint and determines comparison results of comparisons between the intensity values of pairs of the sample points. The keypoint descriptor generator circuit generate bit values defining the comparison results for the keypoint, each bit value corresponding with one of the comparison results, and generate a sequence of the bit values defining an ordering of the comparison results based on importance levels of the comparisons, where the importance level of each comparison defines how much the comparison is representative of features. Bit values for comparisons having the lowest importance levels may be excluded from the sequence.