Huawei Technologies Co., Limited

Tencent Technology (shenzhen) Company Limited

Fang Huang

Zheng Wang

Le Yuan

Renjian Wu

Yi Zhao

Ningjun Dou

Jun Xue

Ximin Yu

A video signal processing method which includes: performing luminance mapping and color gamut conversion after color space conversion and non-linear space-to-linear space conversion are performed on a to-be-processed video signal, performing linear space-to-non-linear space conversion and color space conversion on the color gamut-converted signal, and then performing saturation mapping on the converted signal, to obtain a video signal that matches a format supported by a display device, so that the to-be-processed video signal can be correctly displayed on the display device.

Video signal processing method and apparatus

A method and an apparatus for processing a high dynamic range (HDR) video including a subtitle, where the method includes: encapsulating HDR video data into a video data frame that matches a transmission interface; encapsulating subtitle information into a subtitle information frame that matches the transmission interface; and separately transmitting the video data frame and the subtitle information frame to a display device through the transmission interface, where the video data frame and the subtitle information frame are packets in two types of formats. According to the method provided in this application, content and subtitle information of a dynamic metadata HDR video are separately transmitted to the display device. In this way, the display device can obtain the separated video content and subtitle information, and then separately perform corresponding processing on the HDR video and a subtitle.

Method and apparatus for processing high dynamic range video including subtitle

A video signal processing method includes obtaining a first linear luminance signal based on a first linear red green blue (RGB) signal corresponding to a video signal, converting the first linear luminance signal into a first non-linear luminance signal, performing a piecewise luminance mapping on the first non-linear luminance signal to obtain a second non-linear luminance signal, converting the second non-linear luminance signal into a second linear luminance signal, calculating a luminance gain between the second linear luminance signal and the first linear luminance signal, and obtaining, based on a product of the luminance gain and the first linear RGB signal, an RGB display signal corresponding to the video signal.

A method for performing a search in a browser is provided. The method includes receiving one or more keywords entered in a current search engine and searching data from the current search engine based on the entered keywords. The method also includes displaying a search engine results page from the current search engine to a user and displaying alternative search engines when detecting that an operation event of the user in the search engine results page meets preset switching criteria. Further, the method includes extracting a search web address template corresponding to an alternative search engine selected by the user and loading the entered keywords into the search web address template corresponding to the selected alternative search engine to search data from the alternative search engine. In addition, the method includes displaying a search engine results page from the selected alternative search engine.

Method, system and terminal for performing search in a browser

A method for obtaining associated word information, a searching keyword is obtained. An associated word list corresponding to the searching keyword is obtained, wherein the associated word list comprises one or more associated words containing the searching keyword. For each associated word in the associated word list, a process includes obtaining matching word information corresponding to the associated word, wherein the matching word information comprises text information same as the associated word list and the attribute information; obtaining a displaying template corresponding to the matching word information; generating associated word information to be displayed in a client according to the matching word information and the displaying template.

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Shenzhen, China

Fang Huang