公开(公告)号：US20200058133A1

公开(公告)日：2020-02-20

申请号：US16552387

申请日：2019-08-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jayasree SANKARANARAYANAN ,  Dipan Kumar MANDAL

IPC: G06T7/60 ,  G06F9/38 ,  G06F9/30 ,  G06T1/20 ,  G06F17/16

Abstract: Disclosed techniques relate to forming a block sum of picture elements employing a vector dot product instruction to sum packed picture elements and the mask producing a vector of masked horizontal picture element. The block sum is formed from plural horizontal sums via vector single instruction multiple data (SIMD) addition.

公开(公告)号：US20150365696A1

公开(公告)日：2015-12-17

申请号：US14737904

申请日：2015-06-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Hrushikesh Tukaram GARUD ,  Soyeb Noormohammed NAGORI ,  Dipan Kumar MANDAL

IPC: H04N19/53 ,  H04N19/523 ,  H04N19/56 ,  H04N19/20 ,  H04N19/513

CPC classification number: H04N19/53 ,  H04N19/56

Abstract: An image processing system includes a processor and optical flow determination logic. The optical flow determination logic is to quantify relative motion of a feature present in a first frame of video and a second frame of video with respect to the two frames of video. The optical flow determination logic configures the processor to convert each of the frames of video into a hierarchical image pyramid. The image pyramid comprises a plurality of image levels. Image resolution is reduced at each higher one of the image levels. For each image level and for each pixel in the first frame, the processor is configured to establish an initial estimate of a location of the pixel in the second frame and to apply a plurality of sequential searches, starting from the initial estimate, that establish refined estimates of the location of the pixel in the second frame.

Abstract translation: 图像处理系统包括处理器和光流确定逻辑。 光流确定逻辑是量化相对于两帧视频的视频第一帧和第二帧视频中存在的特征的相对运动。 光流确定逻辑配置处理器以将每个视频帧转换为分层图像金字塔。 图像金字塔包括多个图像级别。 图像分辨率在每个较高的一个图像级别被减少。 对于每个图像级别和对于第一帧中的每个像素，处理器被配置为建立第二帧中的像素的位置的初始估计，并且从初始估计开始施加多个顺序搜索，其建立精确的 估计第二帧中像素的位置。