公开(公告)号：US09325905B2

公开(公告)日：2016-04-26

申请号：US14215792

申请日：2014-03-17

Applicant: QUALCOMM Incorporated

Inventor： Ying X. Noyes

IPC: H04N5/232 ,  H04N5/345

CPC classification number: H04N5/23296 ,  H04N5/23203 ,  H04N5/23216 ,  H04N5/3454

Abstract: An apparatus and method of generating a zoomed image is disclosed. A particular method includes receiving an instruction to perform a zoom operation. Window information is sent to an image sensor based on the instruction. The window information corresponds to a portion of the image sensor. In addition, a request to reduce the pixel clock rate may be sent to the image sensor. The request may cause the image sensor to reduce the pixel clock rate such that a frame rate of image data captured by the image sensor is maintained. Cropped image data corresponding to the portion of the image sensor is received. The cropped image data is upscaled to generate a zoomed image.

Abstract translation: 公开了一种生成缩放图像的装置和方法。 特定方法包括接收执行缩放操作的指令。 窗口信息根据指令发送到图像传感器。 窗口信息对应于图像传感器的一部分。 此外，可以向图像传感器发送降低像素时钟速率的请求。 该请求可能导致图像传感器降低像素时钟速率，使得保持由图像传感器捕获的图像数据的帧速率。 接收与图像传感器的部分相对应的裁剪图像数据。 裁剪的图像数据被放大以生成缩放图像。

公开(公告)号：US20140354859A1

公开(公告)日：2014-12-04

申请号：US14025496

申请日：2013-09-12

Applicant: QUALCOMM Incorporated

Inventor： Ying X. Noyes ,  Ruben Manuel Velarde ,  Tao Ma

IPC: H04N5/235

CPC classification number: H04N5/2357

Abstract: Certain embodiments relate to banding detection and correction techniques to improve the quality of captured imagery, such as video or still images. In particular, this disclosure describes banding correction techniques that cycle between detection of rolling banding and static banding to determine the power line frequency of ambient light, for example 50 Hz or 60 Hz. The banding correction techniques may also compare different image frames to detect rolling banding. The banding correction techniques may compare row sum data of a plurality of image frames and apply a Fourier analysis to determine a periodic signal of static banding at a particular ambient light power line frequency.

Abstract translation: 某些实施例涉及条带检测和校正技术以改善所捕获图像的质量，例如视频或静止图像。 特别地，本公开描述了在检测滚动条带和静态条带之间循环的条带校正技术，以确定环境光的电力线频率，例如50Hz或60Hz。 条带校正技术还可以比较不同的图像帧以检测卷带。 条带校正技术可以比较多个图像帧的行和数据并应用傅里叶分析来确定特定环境光功率线频率处的静态条带的周期性信号。