公开(公告)号：US20170070731A1

公开(公告)日：2017-03-09

申请号：US15256526

申请日：2016-09-03

Applicant: Apple Inc.

Inventor： Benjamin A. Darling ,  Thomas E. Bishop ,  Kevin A. Gross ,  Paul M. Hubel ,  Todd S. Sachs ,  Guangzhi Cao ,  Alexander Lindskog ,  Stefan Weber ,  Jianping Zhou

IPC: H04N17/00 ,  G06T7/00

CPC classification number: H04N17/002 ,  G06T7/337 ,  G06T7/80 ,  G06T7/85

Abstract: Camera calibration includes capturing a first image of an object by a first camera, determining spatial parameters between the first camera and the object using the first image, obtaining a first estimate for an optical center, iteratively calculating a best set of optical characteristics and test setup parameters based on the first estimate for the optical center until the difference in a most recent calculated set of optical characteristics and previously calculated set of optical characteristics satisfies a predetermined threshold, and calibrating the first camera based on the best set of optical characteristics. Multi-camera system calibration may include calibrating, based on a detected misalignment of features in multiple images, the multi-camera system using a context of the multi-camera system and one or more prior stored contexts.

Abstract translation: 相机校准包括通过第一相机捕获对象的第一图像，使用第一图像确定第一相机和对象之间的空间参数，获得光学中心的第一估计值，迭代地计算最佳的一组光学特性和测试设置 基于光学中心的第一估计的参数，直到最近计算出的光学特性集合的差异和先前计算出的光学特性的组合满足预定阈值，并且基于最佳的光学特性集来校准第一相机。 多摄像机系统校准可以包括基于检测到的多个图像中的特征的不对准，使用多摄像机系统的上下文和一个或多个先前存储的上下文来校准多摄像机系统。

公开(公告)号：US20250086948A1

公开(公告)日：2025-03-13

申请号：US18793235

申请日：2024-08-02

Applicant: Apple Inc.

Inventor： Jade O. Hayat ,  Ilana Volfin ,  Stefan Weber ,  Liang Mi ,  Zahra Sadeghipoor Kermani ,  Alexis Gatt ,  Nizar Khalfaoui ,  Mohit Setia ,  Johnnie B. Manzari

IPC: G06V10/776 ,  G06V10/25

Abstract: This disclosure describes techniques for performing automatic synthetic shallow depth of field (SDOF) or so-called “portrait mode” suggestions for digital image capture. In particular, these techniques aim to solve the problem of letting users of digital image capture devices know when to turn on portrait image capture modes to capture aesthetically pleasing images. If, based on the application certain criteria, a currently-composed scene is detected to be “portrait worthy,” an icon or other indicator may be provided, e.g., on a user interface of the digital image capture device. According to some embodiments, once a scene has been determined to be portrait worthy, the digital image capture device may capture a subsequent image(s) with at least one additional data asset needed to render a captured image in a synthetic SDOF or portrait mode. This will allow users to convert their digital images into portrait mode images via digital image post-processing operations.