A media streaming method for transmitting media content over a network, comprising: providing the media content with a first resolution by a media source; generating a gesture command by a displayer device and transmitting the gesture command to the media source; extracting a partial frame with the second resolution from the media content with the first resolution according to the gesture command, a relative location of the partial frame in the media content being determined by the gesture command; and transmitting the partial frame with the second resolution from the media source to the displayer device; and the media streaming method is further characterised by transmitting data of the media content in a buffer area only surrounding the partial frame from the media source to the displayer device along with the partial frame; wherein the media source comprises a plurality of camera devices (140a-140d), the camera devices are located at different positions in a scene, the camera devices capture a plurality of media contents from different visual angle relative to the scene, each of the media contents is captured with the first resolution; the media streaming method further comprising: having a radiation indicator at a fixed position; receiving, by a plurality of radiation sensors disposed on different spots on a virtual reality headset, the displayer device being the virtual reality headset, a radiation from the radiation indicator at different time stamps; calculating, by the plurality of radiation sensors, a spatial relationship of the displayer device according to the time stamps; wherein the operations of extracting the partial frame and transmitting the partial frame are performed by: selecting one of the camera devices (140a-140d) of the media source according to the spatial relationship; extracting the partial frame according to the gesture command by the selected one of the camera devices; and transmitting the partial frame from the selected one of the camera devices to the displayer device. providing the media content with a first resolution by a media source; generating a gesture command by a displayer device and transmitting the gesture command to the media source; extracting a partial frame with the second resolution from the media content with the first resolution according to the gesture command, a relative location of the partial frame in the media content being determined by the gesture command; and transmitting the partial frame with the second resolution from the media source to the displayer device; and the media streaming method is further characterised by transmitting data of the media content in a buffer area only surrounding the partial frame from the media source to the displayer device along with the partial frame; wherein the media source comprises a plurality of camera devices (140a-140d), the camera devices are located at different positions in a scene, the camera devices capture a plurality of media contents from different visual angle relative to the scene, each of the media contents is captured with the first resolution; the media streaming method further comprising: having a radiation indicator at a fixed position; receiving, by a plurality of radiation sensors disposed on different spots on a virtual reality headset, the displayer device being the virtual reality headset, a radiation from the radiation indicator at different time stamps; calculating, by the plurality of radiation sensors, a spatial relationship of the displayer device according to the time stamps; wherein the operations of extracting the partial frame and transmitting the partial frame are performed by: selecting one of the camera devices (140a-140d) of the media source according to the spatial relationship; extracting the partial frame according to the gesture command by the selected one of the camera devices; and transmitting the partial frame from the selected one of the camera devices to the displayer device. having a radiation indicator at a fixed position; receiving, by a plurality of radiation sensors disposed on different spots on a virtual reality headset, the displayer device being the virtual reality headset, a radiation from the radiation indicator at different time stamps; calculating, by the plurality of radiation sensors, a spatial relationship of the displayer device according to the time stamps; wherein the operations of extracting the partial frame and transmitting the partial frame are performed by: selecting one of the camera devices (140a-140d) of the media source according to the spatial relationship; extracting the partial frame according to the gesture command by the selected one of the camera devices; and transmitting the partial frame from the selected one of the camera devices to the displayer device. selecting one of the camera devices (140a-140d) of the media source according to the spatial relationship; extracting the partial frame according to the gesture command by the selected one of the camera devices; and transmitting the partial frame from the selected one of the camera devices to the displayer device.