Abstract: Provided is an authentication protection system based on a trusted environment. The system includes: a client application, a trusted execution environment (TEE) processing unit, a daemon application and a trusted application; where the client application is configured to issue a security authentication business request to the TEE processing unit for calling a security business; the TEE processing unit is configured to forward the security authentication business request to the daemon application and the trusted application separately, return a verification result to the client application, and create a session connection for the client application and the trusted application; the daemon application is configured to verify the security authentication business request and the trusted application is configured to conduct a session with the client application and provide a business service for the client application.

Abstract: A method for mapping a low-dynamic range (LDR) video into a high-dynamic range (HDR) video and a device therefor are provided. The method includes a modeling process, and a mapping process. The modeling process includes training according to LDR videos of at least three different exposure levels to obtain a highlight reconstruction model and an exposure generation model, and the mapping process includes mapping an LDR video to be processed into an HDR video through the highlight reconstruction model and the exposure generation model. Accordingly, solutions to the problems of a multi-exposure synthetic image being too dark or too light is provided, and jitter in video synthesis, are provided.

Abstract: A method for mapping a low-dynamic range (LDR) video into a high-dynamic range (HDR) video and a device therefor are provided. The method includes a modeling process, and a mapping process. The modeling process includes training according to LDR videos of at least three different exposure levels to obtain a highlight reconstruction model and an exposure generation model, and the mapping process includes mapping an LDR video to be processed into an HDR video through the highlight reconstruction model and the exposure generation model. Accordingly, solutions to the problems of a multi-exposure synthetic image being too dark or too light is provided, and jitter in video synthesis, are provided.

Abstract: Provided is an authentication protection system based on a trusted environment. The system includes: a client application, a trusted execution environment (TEE) processing unit, a daemon application and a trusted application; where the client application is configured to issue a security authentication business request to the TEE processing unit for calling a security business; the TEE processing unit is configured to forward the security authentication business request to the daemon application and the trusted application separately, return a verification result to the client application, and create a session connection for the client application and the trusted application; the daemon application is configured to verify the security authentication business request and the trusted application is configured to conduct a session with the client application and provide a business service for the client application.