Mediatek Corporation

Mediatek Incorporation

Hfi Innovation Inc.

Chi-Cheng Ju

Tsu-Ming Liu

Ding-Yun Chen

Cheng-Tsai Ho

Yung-Chang Chang

Kun-Bin Lee

Han-Liang Chou

Tung-Hsing Wu

Chih-Ming Wang

Ping Chao

Ting-An Lin

Chun-Chia Chen

Chia-Yun Cheng

Chung-Hung Tsai

Yi-Hau Chen

Jian-Liang Lin

Hung-Chih Lin

Shen-Kai Chang

Chia-Ying Li

Chao-Chih Huang

Po-Hao Huang

Yuan-Chung Lee

Ching-Chieh Wang

Chia-Ming Cheng

Ying-Jui Chen

Yen-Chieh Lai

Te-Chi Hsiao

Kui-Chang Tseng

Huei-Min Lin

Shih-Hung Lin

Hui Ouyang

Ching-Yeh Chen

Chih-Wei Hsu

Yu-Wen Huang

Shaw-Min Lei

Chih-Ming Fu

Chia-Yang Tsai

Te-Hao Chang

Chih-Kai Chang

Li-Heng Chen

Wan-Yu Chen

I-Hsien Lee

Chin-Jung Yang

Chun-Nan Li

Chi-Hui Wang

Tzu-Ping Lin

Hsin-Hao Chung

Ping-yao Wang

Wei-Gen Wu

Chung Hsien Lee

Chang-Hung Tsai

Jia-Ying Lin

De-Yuan Shen

Ya-Jung Yang

Jeffrey Ju

Hung-Chih Ko

Pin-Chung Lin

Keh-Tsong Li

Yu-Ju Lin

Kung-Tsun Yang

Hsun-Chia Hsu

Chuang-Chi Chiou

An image signal amplifying circuit comprising an amplifier and a gain control circuit. The amplifier respectively amplifies a first image signal and a second image signal, which are generated by a pixel array of an image sensor, by a first analog gain and a second analog gain, wherein each one of pixel circuits of the pixel array comprises a first capacitor for generating the first image signal and a second capacitor for generating the second image signal, wherein a charge storage capacity of the first capacitor is smaller than a charge storage capacity of the second capacitor. The gain control circuit selectively adjusts the first analog gain or the second analog gain. Each one of the pixel circuits has a first conversion gain corresponding to the first capacitor and a second conversion gain corresponding to the second capacitor.

Image signal amplifying circuit and image signal amplifying method

Various schemes pertaining to generating a full-frame color image using a hybrid sensor are described. An apparatus receives sensor data from the hybrid sensor, wherein the sensor data includes partial-frame chromatic data of a plurality of chromatic channels and partial-frame color-insensitive data. The apparatus subsequently generates full-frame color-insensitive data based on the partial-frame color-insensitive data. The apparatus subsequently generates the full-frame color image based on the full-frame color-insensitive data and the partial-frame chromatic data. The apparatus provides benefits of enhancing image quality of the full-frame color image especially under low light conditions.

High sensitivity color image generation using hybrid sensor

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 projection-based frame is generated according to an omnidirectional video frame and a triangle-based projection layout. The projection-based frame has a 360-degree image content represented by triangular projection faces assembled in the triangle-based projection layout. A 360-degree image content of a viewing sphere is mapped onto the triangular projection faces via a triangle-based projection of the viewing sphere. One side of a first triangular projection face has contact with one side of a second triangular projection face, one side of a third triangular projection face has contact with another side of the second triangular projection face. One image content continuity boundary exists between one side of the first triangular projection face and one side of the second triangular projection face, and another image content continuity boundary exists between one side of the third triangular projection face and another side of the second triangular projection face.

Method and apparatus for generating projection-based frame with 360-degree image content represented by triangular projection faces assembled in triangle-based projection layout

A perception-based image processing apparatus includes an image analyzing circuit and an application circuit. The image analyzing circuit obtains training data, sets a perception model according to the training data, performs an object detection of at least one frame, and generates an object detection information signal based at least partly on a result of the object detection of said at least one frame. The application circuit operates in response to the object detection information signal.

Perception-based image processing apparatus and associated method

A projection-based frame is generated according to an omnidirectional video frame and an octahedron projection layout. The projection-based frame has a 360-degree image content represented by triangular projection faces assembled in the octahedron projection layout. A 360-degree image content of a viewing sphere is mapped onto the triangular projection faces via an octahedron projection of the viewing sphere. One side of a first triangular projection face has contact with one side of a second triangular projection face, one side of a third triangular projection face has contact with another side of the second triangular projection face. One image content continuity boundary exists between one side of the first triangular projection face and one side of the second triangular projection face, and another image content continuity boundary exists between one side of the third triangular projection face and another side of the second triangular projection face.

Method and apparatus for generating projection-based frame with 360-degree image content represented by triangular projection faces assembled in octahedron projection layout

A video encoding method includes: setting a 360-degree Virtual Reality (360 VR) projection layout of projection faces, wherein the projection faces have a plurality of triangular projection faces located at a plurality of positions in the 360 VR projection layout, respectively; encoding a frame having a 360-degree image content represented by the projection faces arranged in the 360 VR projection layout to generate a bitstream; and for each position included in at least a portion of the positions, signaling at least one syntax element via the bitstream, wherein the at least one syntax element is set to indicate at least one of an index of a triangular projection view filled into a corresponding triangular projection face located at the position and a rotation angle of content rotation applied to the triangular projection view filled into the corresponding triangular projection face located at the position.

Video encoding method and apparatus with syntax element signaling of employed projection layout and associated video decoding method and apparatus

Aspects of the disclosure provide a method for merging compressed access units according to compression rates and/or positions of the respective compressed access units. The method can include receiving a sequence of compressed access units corresponding to a sequence of raw access units partitioned from an image or a video frame and corresponding to a sequence of memory spaces in a frame buffer, determining a merged access unit including at least two consecutive compressed access units based on compression rates and/or positions of the sequence of compressed access units. The merged access unit is to be stored in the frame buffer with a reduced gap between the at least two consecutive compressed access units compared with storing the at least two consecutive compressed access units in corresponding memory spaces in the sequence of memory spaces.

Merged access units in frame buffer compression

A portable device has an adaptive panoramic image processor. The portable device further has a plurality of image sensors having overlapping fields of view and an input device receiving a trigger signal that triggers the plurality of image sensors to capture a plurality of images. The adaptive panoramic image processor of the portable device processes the images to form a panorama based on side information about the portable device.

Portable device with adaptive panoramic image processor

An exemplary image processing method includes the following steps: receiving an image input composed of at least one source image; receiving algorithm selection information corresponding to each source image; checking corresponding algorithm selection information of each source image to determine a selected image processing algorithm from a plurality of different image processing algorithms; and performing an object oriented image processing operation upon the source image based on the selected image processing algorithm. The algorithm selection information indicates an image quality of each source image and is generated from one of an auxiliary sensor, an image processing module of an image capture apparatus, a processing circuit being one of a video decoder, a frame rate converter, and an audio/video synchronization (AV-Sync) module, or is a user-defined mode setting.

Method and apparatus for performing image processing operation based on frame/algorithm selection

A data processing apparatus has a first compressor, a second compressor, a first output interface, and a second output interface. The first compressor generates first compressed display data by performing compression upon display data of a first partial region of a frame according to a first compression order. The second compressor generates second compressed display data by performing compression upon display data of a second partial region of the frame according to a second compression order. There is a boundary between the first partial region and the second partial region. In a horizontal direction, the first compression order on one side of the first boundary is opposite to the second compression order on another side of the first boundary. The first and second output interfaces output the first and second compressed display data via a first display port and a second display port of a display interface, respectively.

Data processing apparatus capable of performing optimized compression for compressed data transmission over multiple display ports of display interface and related data processing method

A method and apparatus for video encoding to generate a partitioned bitstream without buffering transform coefficient and/or prediction data for subsequent coding units are disclosed. An encoder incorporating an embodiment according to the present invention receives first video parameters associated with a current coding unit, wherein no first video parameters associated with subsequent coding units are buffered. The encoder then encodes the first video parameters to generate a current first compressed data corresponding to the current coding unit. A first memory address in the first logic unit is determined and the encoder provides the current first compressed data at the first memory address in the first logic unit.

Method and apparatus of video encoding with partitioned bitstream

A data processing apparatus has a camera sensor, a camera buffer, a compressor, and an output interface. The camera sensor generates an input multimedia data. The camera buffer stores a first data derived from the input multimedia data. The compressor generates a compressed multimedia data by compressing a second data derived from the input multimedia data. The output interface packs the compressed multimedia data into a bitstream, and outputs the bitstream via a camera interface. The camera interface is coupled between the data processing apparatus and another data processing apparatus that are located at different chips, and the camera interface is a chip-to-chip interface that provides direct pin connections between the different chips.

Data processing system for transmitting compressed multimedia data over camera interface

A portable device capable of building a panorama, a panoramic video or/and a panoramic audio. The portable device has a plurality of sensors with overlapping sensing areas and an input device receiving a trigger signal that triggers the sensors to sense data for generating a panoramic photo/video/audio file.

Portable device capable of generating panoramic file

Method and system of video decoding incorporating frame compression to reduce frame buffer size are disclosed. The method adjusts parameters of the frame compression according to decoder system information or syntax element in the video bitstream. The decoder system information may be selected from a group consisting of system status, system parameter and a combination of system status and system parameter. The decoder system information may include system bandwidth, frame buffer size, frame buffer status, system power consumption, and system processing load. The syntax element comprises reference frame indicator, initial picture QP (quantization parameter), picture type, and picture size. The adaptive frame compression may be applied to adjust compression ratio. Furthermore, the adaptive frame compression may be applied to a decoder for a scalable video coding system or a multi-layer video coding system.

System and method for adaptive frame re-compression in video processing system

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Hsinchu, Taiwan

Chi-Cheng Ju