Beijing Bytedance Network Technology Co., Ltd.

Yangyu Chen

Yi He

Lei Li

Xinyu Wang

Xianzi Zong

An embodiment of the disclosure provides a live steam sampling method and device and electronic equipment, which belong to the technical field of image processing. The method comprises: extracting multi-frame sampled images from live stream; screening out forward similar images from all sampled images, wherein the forward similar images are sampled images similar to a sampled image of a previous adjacent frame; and taking the rest of the sampled images, except from the forward similar images, in all sampled images as sampled images of the live stream. According to the solution of the disclosure, a solution of effectively eliminating the forward similar images in sampling operation based on a FPS is realized, thereby avoiding the leakage conditions, reducing total workload of sampling and checking, and improving efficiency of live stream sampling.

Live streaming sampling method and apparatus, and electronic device

A method for determining geometric transformation relation for images is provided. The method includes: obtaining a first image and a second image collection; obtaining coordinates of three non-collinear pixels in the first image to forma coordinate collection; generating a target matrix according to the coordinate collection, and for the at least two second images in the second image collection, obtaining coordinates of pixels in the at least two second images corresponding to coordinate-indicative pixels in the coordinate collection to form a corresponding coordinate collection; according to the corresponding coordinate collection, generating a target column vector matching a column number of the target matrix; pre-multiplying the target matrix by the target column vector to obtain a transformation column vector; determining the geometric transformation relation of the first images and the at least two second images according to the transformation column vector.

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Beijing, China

Yangyu Chen