High frame rate in high dynamic range processing

    公开(公告)号:US11196937B2

    公开(公告)日:2021-12-07

    申请号:US16694764

    申请日:2019-11-25

    Inventor: Yihe Yao Lei Ma

    Abstract: This disclosure provides systems, methods, and apparatuses for high dynamic range (HDR) processing. In one aspect, an example HDR processing device may process a first exposure frame and a second exposure frame during a first capture sequence. The device may also generate a first HDR image from the first exposure frame and the second exposure frame at an end of the first capture sequence. The device may also process a third exposure frame during a second capture sequence that at least partially overlaps in time with the first capture sequence. The device may also generate a second HDR image from the second exposure frame and the third exposure frame.

    Automatic scene calibration method for video analytics

    公开(公告)号:US10372970B2

    公开(公告)日:2019-08-06

    申请号:US15266747

    申请日:2016-09-15

    Abstract: To determine real-world information about objects moving in a scene, the camera capturing the scene is typically calibrated to the scene. Automatic scene calibration can be accomplished using people that are found moving about in the scene. During a calibration period, a video content analysis system processing video frames from a camera can identify blobs that are associated with people. Using an estimated height of a typical person, the video content analysis system can use the location of the person's head and feet to determine a mapping between the person's location in the 2-D video frame and the person's location in the 3-D real world. This mapping can be used to determine a cost for estimated extrinsic parameters for the camera. Using a hierarchical global estimation mechanism, the video content analysis system can determine the estimated extrinsic parameters with the lowest cost.

    Systems and methods for context-aware application control
    5.
    发明授权
    Systems and methods for context-aware application control 有权
    用于上下文感知应用程序控制的系统和方法

    公开(公告)号:US09459889B2

    公开(公告)日:2016-10-04

    申请号:US14712847

    申请日:2015-05-14

    CPC classification number: G06F9/4451 G06F3/0481 G06F9/466 G06F9/542

    Abstract: A method performed by an electronic device is described. The method includes obtaining sensor information. The method also includes identifying a class of an object based on the sensor information. The method further includes determining one or more actions based on the sensor information, the class of the object and an action usage history. The method additionally includes performing at least one of the one or more actions based on at least one application.

    Abstract translation: 描述由电子设备执行的方法。 该方法包括获取传感器信息。 该方法还包括基于传感器信息识别对象的类别。 该方法还包括基于传感器信息,对象的类别和动作使用历史确定一个或多个动作。 该方法还包括基于至少一个应用来执行一个或多个动作中的至少一个。

    SYSTEMS AND METHODS FOR CONTINUOUS AUTO FOCUS (CAF)
    6.
    发明申请
    SYSTEMS AND METHODS FOR CONTINUOUS AUTO FOCUS (CAF) 有权
    连续自动聚焦(CAF)的系统和方法

    公开(公告)号:US20160269615A1

    公开(公告)日:2016-09-15

    申请号:US14643876

    申请日:2015-03-10

    Abstract: Systems and methods for continuous automatic focus are disclosed. In some aspects, an object to focus on is selected from a field of view of a camera. At least one region of the field of view that includes the object is monitored for change. Regions of the field of view that do not include the object may not be monitored, thus improving efficiency and speed. If a change in the image content of the monitored region(s) occurs, the method may trigger a focus event. If the object moves to different region(s) of the field of view, the method detects the movement and adjusts the regions of the image being monitored to maintain focus on the object. In some aspects, the size of the object is also monitored. If the size of the object changes, a focus event may be triggered, depending on whether the amount of change exceeds predetermined parameters.

    Abstract translation: 公开了用于连续自动对焦的系统和方法。 在某些方面,从照相机的视野中选择要聚焦的对象。 监视包含对象的视野的至少一个区域进行更改。 不包括对象的视野区域可能不被监视,从而提高效率和速度。 如果监视区域的图像内容发生变化,则该方法可能会触发焦点事件。 如果对象移动到视场的不同区域,则该方法检测移动并调整被监视图像的区域以保持对象的焦点。 在某些方面,还监视对象的大小。 如果对象的大小改变,则可以触发焦点事件,这取决于变化量是否超过预定参数。

    TECHNIQUES FOR CORRECTING VIDEO ROLLING SHUTTER JELLO EFFECT FOR OPEN LOOP VOICE-COIL MOTOR CAMERAS

    公开(公告)号:US20210203825A1

    公开(公告)日:2021-07-01

    申请号:US16728583

    申请日:2019-12-27

    Abstract: Methods, systems, and devices for techniques for correcting video rolling shutter jello effect for open loop voice-coil motor cameras are described. A device may capture an image using an open loop voice-coil motor camera including a lens barrel assembly, a base mount, and a brake caliper. The base mount associated with the lens barrel assembly may include the brake caliper. The device may determine a vibration frequency parameter associated with a gyroscope sensor exceeds a threshold. Based on the vibration frequency parameter exceeding the threshold, the device may measure an image sharpness parameter associated with the image. In some aspects, the device may configure engagement of the brake caliper with the lens barrel assembly based on the image sharpness parameter.

    MULTIPLE FRAME IMAGE STABILIZATION
    9.
    发明申请

    公开(公告)号:US20200099862A1

    公开(公告)日:2020-03-26

    申请号:US16138644

    申请日:2018-09-21

    Abstract: Aspects of the present disclosure relate to systems and methods for performing multiple frame electronic image stabilization (EIS). An example device may include a memory and a processor configured to receive a current frame for performing multiple frame EIS, determine a location of a cropping in the current frame for an EIS image, and crop current image information from the current frame using the cropping. The cropped current image information is included in the EIS image. The processor further may be configured to determine a portion of the cropping for the EIS image not in the current frame, retrieve from the memory prior image information for the portion of the cropping from one or more prior frames in response to determining the portion of the cropping not in the current frame, and generate, for the current frame, the EIS image including the current image information and the prior image information.

    Methods and systems of generating a background picture for video coding

    公开(公告)号:US10375399B2

    公开(公告)日:2019-08-06

    申请号:US15134183

    申请日:2016-04-20

    Abstract: Techniques and systems are provided for generating a background picture. The background picture can be used for coding one or more pictures. For example, a method of generating a background picture includes generating a long-term background model for one or more pixels of a background picture. The long-term background model includes a statistical model for detecting long-term motion of the one or more pixels in a sequence of pictures. The method further includes generating a short-term background model for the one or more pixels of the background picture. The short-term background model detects short-term motion of the one or more pixels between two or more pictures. The method further includes determining a value for the one or more pixels of the background picture using the long-term background model and the short-term background model.

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