Abstract: The embodiments of the disclosure provide a method for transmitting reduced depth information and an electronic device. The method includes: obtaining a first depth map of an image frame, wherein the first depth map includes a plurality of first depth pixels corresponding to multiple image pixels in the image frame; downscaling the first depth map as a second depth map, wherein the second depth map includes multiple second depth pixels, and each second depth pixel has a depth value; adjusting the second depth map as a third depth map by scaling up the depth value of each second depth pixel based on a specific ratio; dividing the third depth map into multiple fourth depth maps; appending the fourth depth maps to the image frame; encoding the image frame appended with the fourth depth maps; and transmitting the encoded image frame to a client device.

Abstract: The embodiments of the disclosure provide an image slice transforming method and an electronic device. The method includes: receiving an i-th image slice outputted by an image encoder, wherein the i-th image slice belongs to N image slices divided from an image frame, i is an index, and N is an integer; obtaining a slice header of the i-th image slice; transforming the i-th image slice into an i-th sub-frame by modifying the slice header of the i-th image slice.

Abstract: The embodiments of the disclosure provide a method for transmitting reduced depth information and an electronic device. The method includes: obtaining a first depth map of an image frame, wherein the first depth map includes a plurality of first depth pixels corresponding to multiple image pixels in the image frame; downscaling the first depth map as a second depth map, wherein the second depth map includes multiple second depth pixels, and each second depth pixel has a depth value; adjusting the second depth map as a third depth map by scaling up the depth value of each second depth pixel based on a specific ratio; dividing the third depth map into multiple fourth depth maps; appending the fourth depth maps to the image frame; encoding the image frame appended with the fourth depth maps; and transmitting the encoded image frame to a client device.

Abstract: A method, system and recording medium for adaptive interleaved image warping are provided. The method is applicable to a display system having a head-mounted device (HMD) and a computing device. In the method, the computing device generates a plurality of image frames to be displayed on the HMD according to a frame rate, wherein the image frames generated to be displayed on a first display and a second display at a same time point comprise a first frame with a first resolution and a second frame with a second resolution lower than the first resolution. The generated image frames are transferred from the computing device to the HMD. The HMD restores the second frames with the second resolution among the image frames to a regular resolution of the first display and the second display, and then interleaved displays the first frames and the restored second frames on the first display and the second display.

Abstract: A tracking system, tracking method for real-time rendering an image and non-transitory computer-readable medium are provided in this disclosure. The tracking system includes a controller, a server and an electronic device. The electronic device includes a processor and a displayer. The controller is configured for providing a first tracking data and a second tracking data. The electronic device is configured for providing a first viewing data and a second viewing data. The server is configured for generating a first image according to the first tracking data and the first viewing data received from the electronic device. The processor is configured for receiving the first image and generating a second image according to the first image, the second tracking data and the second viewing data. The displayer is configured for displaying a simulated scenario according to the second image.

Abstract: A frame rendering method used in a head-mounted device that includes the steps outlined below. Input frames are received. First and second orientation information corresponding to a first and a second input frames are retrieved from a motion sensor. Predicted orientation information of a predicted orientation corresponding to a target time spot is generated according to the first and the second orientation information. Orientation calibration is performed on the first and the second input frames according to the first and the second orientation information to respectively generate a first and a second calibrated frames corresponding to the predicted orientation. One of a plurality of extrapolated frames corresponding to the target time spot is generated according to the first calibrated frame and the second calibrated frame.

Abstract: An operating method of a tracking system is disclosed. The operating method includes the following operations: obtaining, by a processor, a parameter of a lens of a HMD (Head Mount Display) device; calculating, by the processor, data of a foveation area according to the parameter; generating, by the processor, a foveation image according to the foveation area; generating, by the processor, a peripheral image whose resolution is lower than a resolution of the foveation image; and merging, by the processor, the foveation image and the peripheral image to generate a viewing image; and outputting, by the processor, the viewing image.

Abstract: A tracking system, tracking method for real-time rendering an image and non-transitory computer-readable medium are provided in this disclosure. The tracking system includes a controller, a server and an electronic device. The electronic device includes a processor and a displayer. The controller is configured for providing a first tracking data and a second tracking data. The electronic device is configured for providing a first viewing data and a second viewing data. The server is configured for generating a first image according to the first tracking data and the first viewing data received from the electronic device. The processor is configured for receiving the first image and generating a second image according to the first image, the second tracking data and the second viewing data. The displayer is configured for displaying a simulated scenario according to the second image.

Abstract: A method, system and recording medium for adaptive interleaved image warping are provided. The method is applicable to a display system having a head-mounted device (HMD) and a computing device. In the method, the computing device generates a plurality of image frames to be displayed on the HMD according to a frame rate, wherein the image frames generated to be displayed on a first display and a second display at a same time point comprise a first frame with a first resolution and a second frame with a second resolution lower than the first resolution. The generated image frames are transferred from the computing device to the HMD. The HMD restores the second frames with the second resolution among the image frames to a regular resolution of the first display and the second display, and then interleaved displays the first frames and the restored second frames on the first display and the second display.

Abstract: A frame rendering method used in a head-mounted device that includes the steps outlined below. Input frames are received. First and second orientation information corresponding to a first and a second input frames are retrieved from a motion sensor. Predicted orientation information of a predicted orientation corresponding to a target time spot is generated according to the first and the second orientation information. Orientation calibration is performed on the first and the second input frames according to the first and the second orientation information to respectively generate a first and a second calibrated frames corresponding to the predicted orientation. One of a plurality of extrapolated frames corresponding to the target time spot is generated according to the first calibrated frame and the second calibrated frame.