Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A method for de-flickering frames captured by a camera including capturing a first frame with short exposure to generate a first short exposure frame, capturing the first frame with long exposure to generate a first long exposure frame, generating brightness energy information of the first frame according to the first short exposure frame and the first long exposure frame, generating a first set of parameters according to the brightness energy information of the first frame, generating brightness energy information of N next frames after the first frame according to the first set of parameters and the brightness energy information of the first frame, and generating de-flicker scalars of the N next frames after the first frame according to the brightness energy information of the N next frames after the first frame.