Pixart Imaging Incorporated

Pixart Imaging Incorporation

Fixart Imaging Incorporated

Tzu-Yi Chao

Hsin-Chia Chen

Chih-Hsin Lin

Chih-Hung Lu

Yi-Fang Lee

Chang-Che Tsai

Chuan-Hsin Lee

Hsuan-Hsien Lee

Cho-Yi Lin

Chin-Hsin Yang

Ching-Lin Chung

Tzung-Min Su

Mei-Ju Chen

Shou-Der Wei

An interactive system capable of improving image processing includes a reference device, a processing module and a controller. The reference device is used for transmitting and/or reflecting light signals within a predetermined spectrum. The processing module includes an image sensor, an estimation unit and a transmission interface. The image sensor is used for sensing an image so as to generate pixel signals; the estimation unit is used for determining static parameters of at least one image object according to the pixel signals; and the transmission interface is used for serially outputting the static parameters of the at least one image object. The controller is used for controlling operation of the interactive system according to the static parameters of the at least one image object outputted from the transmission interface. The image sensor, the estimation unit, and the transmission interface can all be formed on the same substrate.

Interactive system capable of improving image processing

An interactive device for improving image processing. The interactive device includes a processing module and a controller. The processing module includes a substrate, an image sensor formed on the substrate for generating a plurality of pixel signals, a calculation unit formed on the substrate for calculating at least one motion vector based on the plurality of pixel signals, and a transmission interface formed on the substrate for serially outputting the motion vector. The controller is used for controlling operation of the interactive device based on the motion vector output by the transmission interface.

Interactive device capable of improving image processing

The present invention relates to an object-based 3-dimensional stereo information generation apparatus and method, and an interactive system using the same. The method comprises: obtaining at least two 2-dimensional images with respect to the same space at a first time point; extracting objects from the at least two 2-dimensional images, respectively; establishing correspondences between objects; and generating 3-dimensional stereo information according to corresponding objects. The apparatus and interactive system comprises: at least two image capturing units for respectively capturing 2-dimensional images; and processing means for generating 3-dimensional stereo information according to the captured 2-dimensional images.

Object-based 3-dimensional stereo information generation apparatus and method, and interactive system using the same

A data conversion method and a data conversion device convert a large cubic three-dimensional image data to a plurality of pieces of small cubic one-dimensional image data, or convert a plurality of pieces of small cubic one-dimensional image data to a large cubic three-dimensional image data. The data conversion method includes the following steps, marking a three-dimensional index on three-dimensional image data; converting the three-dimensional index to a writing sequence index; inputting the three-dimensional image data to a buffer memory in sequence according to the writing sequence index; computing a reading sequence index according to the writing sequence index; outputting data blocks from the buffer memory in sequence according to the reading sequence index. Through the method and the device, use of the memory is reduced, and time for conversion is lowered.

Data conversion method and data conversion device

A method for calculating an ocular distance is presented. The method includes the following steps. A three-dimensional (3D) image display device generates one or more second display points and displays one or more virtual reference points. One or more calibration points are obtained, and these calibration points are generated through interaction by a user using an interaction component with the reference points. An ocular distance of the user is calculated according to a relative position between the display points, the calibration points, and the user.

Method for calculating ocular distance

A method for coordinate generation to be implemented using an orientation device includes the steps of: providing at least three reference marks on a target; aiming the orientation device at a target point on the target, and operating the orientation device such that the orientation device is able to capture an image of the target that contains the reference marks; assigning absolute coordinates to the reference marks in the image captured by the orientation device; and determining relative coordinates of the target point in a coordinate space of the target with reference to the absolute coordinates assigned to the reference marks. An orientation device that performs the method is also disclosed.

Orientation device and method for coordinate generation employed thereby

A displacement estimation device includes a vector calculator and a displacement calculator, for use in estimating a displacement vector from a pattern in a first original image to a pattern in a second original image. The vector calculator calculates a parameter for each pixel in the first original image and the second original image. The parameter of a pixel integrates the information of the intensities of all the pixels in a region of interest (ROI) surrounding the pixel, and the relative distances from all the pixels in the ROI to the pixel. The displacement calculator calculates the displacement vector from a pattern in the first original image to a pattern in the second original image based on the parameters calculated by the vector calculator for the first original image and the second original image.

Displacement estimation device and method for the same

In a sensing system and a method for obtaining a location of a pointer, the sensing system includes a sensing area, a reflective mirror, a first image sensor and a second image sensor. The reflective mirror is configured for generating a mirror image of the sensing area. The sensing system utilizes the above two image sensors to sense the pointer disposed in the sensing area and a mirror image of the pointer for obtaining two coordinate values. And then the sensing system endues each of the two coordinate values with a weighting factor for calculating the location of the pointer.

Sensing system and method for obtaining location of pointer thereof

A method is provided for decoding an encoded point matrix image including a first set of real grid points aligned along a first axis, a second set of real grid points aligned along a second axis intersecting the first axis, and a plurality of encoded data points distributed throughout the encoded point matrix image. The method includes: locating the first and second axes according to a first predetermined principle; finding a set of virtual grid points according to a second predetermined principle, each of the virtual grid points being located at an intersection of a corresponding first virtual line parallel to the first axis and a corresponding second virtual line parallel to the second axis; and decoding each of the encoded data points based on positional relation thereof with a closest one of the virtual grid points so as to obtain information encoded in the encoded point matrix image.

Method for decoding an encoded point matrix image and an electronic device implementing the same

An interactive device of improving image processing. The interactive device includes a processing module and a control circuit. The processing module includes a substrate, an image sensor for generating a plurality of pixel signals, and an estimation unit for determining a static parameter of at least one image object of the image based on the plurality of pixel signals. A transmission interface is used for serially outputting a control signal based on the static parameter determined by the estimation unit. The interactive device also includes a controller for controlling operation of the interactive device based on the control signal based on the static parameters corresponding to each image object. The image sensor, the estimation unit, and the transmission interface are all formed on the substrate.

A digital image processing method is disclosed, which comprises the steps of: (A) capturing a digital image; (B) selecting at least a target pixel within the digital image according to a predetermined rule; (C) performing a first filtering on a graphic region including the target pixel and its neighboring pixels within the digital image, to generate a set of first filtered values; and (D) performing a second filtering on the set of first filtered values to generate a set of second filtered values, and performing a digital image adjustment process on the digital image according to the set of second filtered values.

Digital image processing apparatus and method for the same

A motion estimation method for a succession of frames in a digital coding system includes: a) with reference to a first block in a first frame, searching a second frame for a second block that corresponds to the first block; and b) estimating a motion vector of the first block on the basis of the second block in the second frame; wherein step a) includes: a1) forming a first initial search range including a virtual rhombus-shaped pattern substantially centered at a pre-determined block, and a2) expanding progressively outward a second initial search range based on the virtual rhombus-shaped pattern.

Motion estimation method utilizing modified rhombus pattern search for a succession of frames in digital coding system

A pixel compensation method is implemented by an image-capturing device having an image sensor for obtaining a pixel pattern of a plurality of pixels, in which each of the pixels has a response intensity. The pixel compensation method includes: a) selecting a first block of a predetermined number of pixels from the pixel pattern obtained by the image sensor; b) designating at least one pixel from the pixels of the first block as a stand-by compensation pixel; c) determining a first compensation value according to the response intensities of the pixels of the first block; and d) adjusting the response intensity of the stand-by compensation pixel according to the first compensation value.

Pixel compensation method for an image sensor

A motion estimation method for a succession of frames in a digital coding system includes: with reference to a first block in a first frame, searching a second frame for a second block that corresponds to the first block; and estimating a motion vector of the first block with respect to the second block in the second frame. Blocks in the second frame are searched according to a distance-weighted search sequence starting from a candidate origin block. In view of the radiating characteristics of motion vectors, the distance-weighted search sequence can save unnecessary search time.

Motion estimation method utilizing a distance-weighted search sequence

A method for coordinate generation to be implemented using an orientation device includes the steps of: providing at least three reference marks on a target; aiming the orientation device at an initial point on the target, and operating the orientation device such that the sensor is able to capture an image of the target that contains at least one of the reference marks; correlating a coordinate space of the orientation device with a coordinate space of the target; aiming the orientation device at a target point on the target, and operating the orientation device such that the sensor is able to capture an image of the target that contains the reference marks; and determining relative coordinates of the target point with reference to the established coordinate space relation and the captured image. An orientation device that performs the method is also disclosed.

Growing community of inventors

Hsinchu Hsien, Taiwan

Tzu-Yi Chao