Abstract: A virtual reality system is provided. The virtual reality system includes a host device, a transmission cable, and a head mounted display apparatus worn by a user and coupled to the host device via the transmission cable. The head mounted display apparatus includes a multimedia module, a multi-sensing module, and a peripheral hub. The multimedia module receives multimedia content from the host device via the transmission cable, and displays a video part of the multimedia content. The multi-sensing module obtains sensing information regarding the head mounted display apparatus, the user and an obstruction. The peripheral hub provides the sensing information to the host device via the transmission cable. At least one virtual object of the video part of the multimedia content is adjusted in response to the sensing information.

Abstract: An image segment method is provided in this disclosure. The method is suitable for an electronic apparatus including a first camera and a motion sensor. The method includes steps of: providing at least one pre-defined model mask; fetching pose data from the motion sensor, the pose data being related to an orientation or a position of the first camera; adjusting one of the at least one pre-defined model mask into an adaptive model mask according to the pose data; and, extracting an object from an image captured by the first camera according to the adaptive model mask.

Abstract: An image processing method includes steps of: providing a source face image and a target face image; extracting facial features from the source face image and the target face image respectively; detecting feature dimensions of the facial features from the source face image and the target face image respectively; pairing the facial features from the source face image with the facial features from the target face image; and, forming an output face image by adjusting the facial features from the source face image in at least one of the feature dimensions according to the paired features from the target face image in the corresponding feature dimensions.

Abstract: A method for audio-video synchronization in a virtual reality (VR) system is provided. The VR system includes a VR device and a host device. The method includes the steps of: connecting the VR device to a host device via a data transmission interface; transmitting an audio signal and a video signal from the host device to the VR device; estimating time delay information in an audio transmission path and a video transmission path of the VR device; transmitting a feedback signal recording the time delay information from the VR device to the host device; and adjusting timing of the audio signal or the video signal transmitted from the host device to the VR device according to the feedback signal.

Abstract: Methods and systems for capturing frames based on device information are provided. First, device information is obtained from at least one component of an electronic device. A configuration for an image capture unit is adjusted according to the device information, to obtain at least one adjusted configuration. Then, at least one frame is captured via the image capture unit according to the at least one adjusted configuration.

Abstract: An embodiment of an image enhancement method is introduced for use in an electronic device. An image composed of a plurality of pixel values is first received, and each pixel therein is separated into two channels. The image is further divided into a plurality of blocks. A distribution of a selected channel is determined for each block, which is selected from the two channels. For each pixel, the pixel value of the selected channel is adjusted according to at least one distribution corresponding to at least one neighboring block. For each pixel, the pixel value of the other channel is adjusted according to the adjusted pixel value of the selected channel. As a result, the adjusted image is provided.

Abstract: An exposure value adjustment apparatus, method, and non-transitory tangible machine-readable medium thereof are provided. The exposure value adjustment apparatus includes a camera module and a processor. The camera module captures a reference image by a base exposure value. The processor generates a histogram of the reference image, divides the histogram into a low partial histogram, a middle partial histogram, and a high partial histogram by a first threshold and a second threshold, decides a high exposure value according to the low partial histogram and the middle partial histogram, decides a low exposure value according to the high partial histogram and the middle partial histogram, and decides a middle exposure value according to the high exposure value and the low exposure value. The low exposure value is lower than the high exposure value, and the middle exposure value is between the high exposure value and the low exposure value.

Abstract: An embodiment of an image enhancement method is introduced for use in an electronic device. An image composed of a plurality of pixel values is first received, and each pixel therein is separated into two channels. The image is further divided into a plurality of blocks. A distribution of a selected channel is determined for each block, which is selected from the two channels. For each pixel, the pixel value of the selected channel is adjusted according to at least one distribution corresponding to at least one neighboring block. For each pixel, the pixel value of the other channel is adjusted according to the adjusted pixel value of the selected channel. As a result, the adjusted image is provided.

Abstract: Methods and systems for media file management are provided. A music file including music samples is provided. The music file is analyzed to calculate a gain for each music sample. At least one valley point is detected based on the gains of the respective music samples. A first and a second specific valley points are selected from the detected valley point, and respectively setting the first and second specific valley points as a start and an end of a music segmentation. Media data is generated for media files in the electronic device based on the music segmentation.

Abstract: A media streaming system, a media streaming method and a non-transitory computer readable storage medium thereof are disclosed. The media streaming system includes a media source and a displayer device. The media source is configured to provide a media content with a first resolution. The displayer device communicatively connected with the media source. The displayer device includes a display panel and a gesture input module. The display panel is configured to display with a second resolution lower than the first resolution. The gesture input module is configured to generate a gesture command. The media source is configured to extract a partial frame with the second resolution from the media content according to the gesture command. A relative location of the partial frame in the media content is determined by the gesture command. Data of the partial frame is transmitted from the media source to the displayer device.

Abstract: An electronic device and a focus adjustment method thereof are provided. The electronic device and the focus adjustment method thereof pre-process the image frames captured to provide focus information of the image frames and adjust the focus according to the focus information. Therefore, as the subject followed or the current scene is out of focus in response to movement of the electronic device, the present invention can immediately obtain the change of focus via the focus information and effectively adjust the focus according to the focus information.

Abstract: Methods and systems for media file management are provided. A music file is provided. The music file is analyzed to obtain a frequency spectrum corresponding to the music file, and at least one beat point on the time line is detected for the music file based on the frequency spectrum. Media data is generated for a plurality of media files in the electronic device based on the music file and a theme defining effects or transitions between the media files, wherein the sequence of the respective effects or transitions, and the corresponding media files which are selected for the respective effects or transitions are determined according to the at least one beat point of the music file.

Abstract: A head mounted display apparatus and a calibrating method thereof are provided. The HMD apparatus has a dual camera unit. The method includes: disposing a reference object in front of the dual camera unit, wherein the reference object has at least one physical feature; capturing a plurality of images of the reference object by the dual camera unit, and generating a distance information of the reference object according to the images; determining whether the dual camera unit being deformed or not by analyzing the distance information; and calibrating the HMD apparatus if the dual camera unit being deformed.

Abstract: A virtual reality system is provided. The virtual reality system includes a host device, a transmission cable, and a head mounted display apparatus worn by a user and coupled to the host device via the transmission cable. The head mounted display apparatus includes a multimedia module, a multi-sensing module, and a peripheral hub. The multimedia module receives multimedia content from the host device via the transmission cable, and displays a video part of the multimedia content. The multi-sensing module obtains sensing information regarding the head mounted display apparatus, the user and an obstruction. The peripheral hub provides the sensing information to the host device via the transmission cable. At least one virtual object of the video part of the multimedia content is adjusted in response to the sensing information.

Abstract: A depth processing method, an electronic device and a medium are provided. The depth processing method includes: obtaining a color image and a depth map corresponding to the color image; extracting a plurality of regions from at least one of the depth map and the color image; obtaining region information of the regions, and classifying the regions into at least one of a region-of-interest and a non-region-of-interest according to the region information, wherein the region information comprises area information and edge information; and adjusting a plurality of depth values in the depth map according to the region information.

Abstract: A color sampling method includes detecting a touch input on a touch screen, determining a first region corresponding to the touch input, performing a temporal analysis on the first region of a plurality of image frames to determine representative color values of pixels within the first region, determining a second region within the first region, and performing a spatial analysis on the second region to determine candidate color value corresponding to the touch input according to the representative color values of pixels within the second region.

Abstract: An image processing method includes steps of: providing a source face image and a target face image; extracting facial features from the source face image and the target face image respectively; detecting feature dimensions of the facial features from the source face image and the target face image respectively; pairing the facial features from the source face image with the facial features from the target face image; and, forming an output face image by adjusting the facial features from the source face image in at least one of the feature dimensions according to the paired features from the target face image in the corresponding feature dimensions.

Abstract: An image segment method is provided in this disclosure. The method is suitable for an electronic apparatus including a first camera and a motion sensor. The method includes steps of: providing at least one pre-defined model mask; fetching pose data from the motion sensor, the pose data being related to an orientation or a position of the first camera; adjusting one of the at least one pre-defined model mask into an adaptive model mask according to the pose data; and, extracting an object from an image captured by the first camera according to the adaptive model mask.

Abstract: A multimedia processing apparatus, method, and non-transitory tangible computer readable medium thereof are provided. The multimedia processing apparatus of the present invention includes an interface and a processing unit. The interface receives an audio stream continuously, wherein the audio stream is defined with a time line. The processing unit performs the following operations every a predetermined time interval: (a) deciding a first portion of the audio stream with reference to a time instant of the time line, (b) calculating an energy of the first portion of the audio stream, and (c) calculating a difference between the energy and a previous energy. The processing unit decides a plurality of second portions of the audio stream and decides a beat point for each of the second portions by selecting the time instant that corresponds to the maximum difference within the second portion.

Abstract: The present invention discloses an image capture method comprises capturing a sequence of image frames; providing the sequence of image frames for preview along a first path and buffering the sequence of image frames into a buffer along a second path separately and concurrently; receiving an input command via an input interface unit; and in response to the input command, extracting a portion of the sequence of image frames from the buffer and encoding the portion of image frames along the second path; and storing the portion of encoded image frames in a memory unit.