Mediatek Corporation

Te-Hao Chang

Ying-Jui Chen

Siou-Shen Lin

Chin-Chuan Liang

Yu-Chun Chen

Chung-Yen Lu

Chao-Chung Cheng

Ping-Han Lee

Wen-Fu Lee

Shu-Fan Wang

Meng-Hung Cho

Hsiao-Wei Chen

Chi-Cheng Ju

Po-Hao Huang

Yu-Lin Chang

Ying-Ru Chen

Chun-Nan Li

Chi-Hui Wang

Tai-Hsiang Huang

Yu-Mao Lin

Han-Yang Wang

An image processing device is provided. The device includes an electronic image stabilization (EIS) module and an image signal processing (ISP) module. The EIS module is configured to determine EIS information for a video frame based on motion information that corresponds to the video frame, wherein the EIS information is associated with the target region and the margin region of the video frame. The ISP module is configured to generate a processed video frame based on the EIS information by performing an ISP process only on the target region of the video frame and skipping the ISP process on the margin region of the video frame. The EIS module is further configured to generate a stabilized image based on the EIS information and the processed video frame.

Electronic image stabilization device and method thereof

An electronic image stabilization (EIS) method includes: obtaining video frames derived from an output of an image sensor, wherein each of the video frames has a full field of view (FOV) of the image sensor; obtaining motion information of the video frames; dynamically estimating, by a processing circuit, EIS margins according to FOV variation of a plurality of cropped images within the video frames respectively; and applying stabilization correction to the cropped images according to the motion information and the EIS margins, to generate a plurality of stabilized images.

Method and apparatus for performing electronic image stabilization with dynamic margin

A processor or control circuit of an apparatus receives data of an image based on sensing by one or more image sensors. The processor or control circuit also detects a region of interest (ROI) in the image. The processor or control circuit then adaptively controls a light projector with respect to projecting light toward the ROI.

Method and apparatus of adaptive infrared projection control

A camera device is provided. The camera device includes: a first imaging section, a second imaging section, a third imaging section, and a processor. The first imaging section, second imaging section, and third imaging section capture a first image, a second image, and a third image of a scene with a first field of view (FOV), a second FOV, and a third FOV. The processor is configured to generate a first output image by performing a first image-fusion process on at least two of the first image, the second image, and the third image in response to a zooming factor of the camera device being between a first zooming factor and a second zooming factor, wherein the first FOV is wider than the second FOV, and the second FOV is wider than the third FOV, and the second zooming factor is greater than the first zooming factor.

Method of image fusion on camera device equipped with multiple cameras

Various examples with respect to method and apparatus for active stereo vision are described. An apparatus may include an electromagnetic (EM) wave emitter, a first sensor and a second sensor. During operation, the EM wave emitter emits EM waves toward a scene, the first sensor captures a first image of the scene in an infrared (IR) spectrum, and the second sensor captures a second image of the scene in a light spectrum. The first image and second image, when processed, may enable active stereo vision.

Method and apparatus for active stereo vision

A camera device is provided. The camera device includes: a first imaging section, a second imaging section, a third imaging section, and a processor. The first imaging section, second imaging section, and third imaging section capture a first image, a second image, and a third image of a scene with a first field of view (FOV), a second FOV, and a third FOV. The processor is configured to generate a first output image by performing a first image-fusion process on the first image, the second image, and a third image in response to a zooming factor of the camera device being between a first zooming factor and a second zooming factor, wherein the first FOV is wider than the second FOV, and the second FOV is wider than the third FOV, and the second zooming factor is greater than the first zooming factor.

A video controller and method for performing tone-mapping of high-dynamic-range (HDR) video are provided. The video controller includes: a color-space converter, arranged to receive an input high-dynamic-range (HDR) video signal and perform a color space conversion on the input HDR video signal to obtain a first video signal having a first gamma curve; a de-gamma unit, arranged to apply a second gamma curve on the first video signal to compensate the first gamma curve to obtain a second video signal; a first histogram calculator, arranged to calculate a first histogram of a current frame of the second video signal; and a tone-mapping unit, arranged to apply a tone-mapping curve on the current frame of the second video signal according to a histogram of a previous frame of the second video signal to generate an output video signal.

High-dynamic-range video tone mapping

Methods and apparatuses pertaining to adaptive display partial update may involve determining whether partial update for an image frame is allowed and, responsive to a determination that the partial update for the image frame is allowed, determining whether the partial update is applicable to the image frame. Responsive to a determination that the partial update is applicable to the image frame, whether or not at least a difference between one or more properties of the image frame and one or more properties of a previous image frame exceeds a threshold may be determined. A partial-frame processing may be performed to partially update the image frame responsive to a determination that the difference does not exceed the threshold.

Adaptive display partial update methods and apparatus thereof for power saving in pixel processing

An image processor includes a receiving unit, an information analyzer and an adjusting circuit. The receiving unit is arranged for receiving image/video data and corresponding metadata, the information analyzer is arranged for analyzing the metadata of the image/video data to generate at least one analyzing result for indicating a strength of an image/video quality enhancement, and the adjusting circuit is arranged for adjusting an image/video quality according to the analyzing result.

Image processor, display image processing method and associated electronic device

An integrated circuit capable of video processing and a method thereof is disclosed. The integrated circuit comprises an image information generator, an adaptive motion vector (MV) candidate generator, and a block matching unit. The image information generator receives reference and current video data to determine image information. The adaptive MV candidate generator, coupled to the image information generator, receives the reference and current video data to generate spatial and temporal MV candidates, and generates an updated MV candidate based on the image information. The block matching unit, coupled to the adaptive MV candidate generator, receives the spatial and temporal MV candidates and the updated MV candidate and performs block matching to determine an output MV therefrom.

Method and integrated circuit for video processing

A method for generating a target perspective model referenced for depth map generation includes at least following steps: receiving a first input image; utilizing a region-based analysis unit for analyzing a plurality of regions in the first input image to extract image characteristics of the regions; and determining the target perspective model according to at least the image characteristics. Another method for generating a target perspective model referenced for depth map generation includes: receiving a first input image; determining a first perspective model in response to the first input image; and utilizing a perspective model generation unit for generating the target perspective model by a weighted sum of the first perspective model and at least one second perspective model.

Method and apparatus of determining perspective model for depth map generation by utilizing region-based analysis and/or temporal smoothing

A method for generating an interpolated frame includes: calculating a temporal matching difference corresponding to a target motion vector of a current block by performing a motion estimation on the current block; deriving a spatial relationship result according to the target motion vector and motion vectors corresponding to a plurality of neighboring image blocks; and deriving the interpolated frame according to the target motion vector, the spatial relationship result, and the temporal matching difference.

Method and related apparatus for generating interpolated frame according to spatial relationship result and temporal matching difference

A video processing apparatus is used for generating a polarized video stream according to a multi-view video stream, and includes a motion information detector and a polarization converter. The motion information detector is arranged for detecting motion information of the multi-view video stream by processing the multi-view video stream. The polarization converter is coupled to the motion information detector, and arranged for converting the multi-view video stream into the polarized video stream according to the motion information.

Apparatus and method for generating polarized video stream according to multi-view video stream and motion information derived from multi-view video stream

A method of interpolated frame generation and input source detection includes: receiving input frames; storing at least a first frame of successive frames in the input frames into a storage device under a film mode; comparing the stored first frame with a second frame of the successive frames not stored in the storage device to generate a first comparison result for determining whether to exit the film mode; and reading frames stored in the storage device to generate interpolated frames under the film mode.

Methods and related apparatus making effective use of bandwidth of storage device to generate interpolated frames

A video processing apparatus includes a first video processing block, a second video processing block and a third video processing block. The first video processing block has a plurality of first video processing circuits disposed at a first video processing path, and is arranged for generating a first video output according to a first video input. The second video processing block has a plurality of second video processing circuits disposed at a second video processing path parallel with the first video processing path, and is arranged for generating an intermediate video output in response to a second video input, wherein an output signal of one of the first video processing circuits acts as the second video input fed into one of the second video processing circuits. The third video processing block is arranged for generating the second video output according to the intermediate video output.

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Taipei, Taiwan

Te-Hao Chang