Shanghai Integrated Circuit Manufacturing Innovation Center Co., Ltd.

Lattice Semiconductor Corporation

Rui Yin

Wei Zhang

Min Xu

Kexin Luo

Min-Kyu Kim

Yu Shen

Jian Jin

Fei Song

Qiming Wu

Xiaofeng Wang

Bao Zhu

Yan Rui

Shaoyong Lu

Jie Yuan

The present invention provides a method and system for processing an image. The method comprises: acquiring high-frame data and low-frame data of a target object, and acquiring initial exposure time to complete the high-frame data and the low-frame data; calculating a proportion of overexposed pixel points and a proportion of underexposed pixel points in the low-frame data; adjusting the initial exposure time according to a magnitude of the proportion of the overexposed pixel points and a magnitude of the proportion of the underexposed pixel points to obtain target exposure time; and acquiring target high-frame data and target low-frame data according to the target exposure time, and replacing overexposed pixel points in the target high-frame data with pixel points of the target low-frame data. The initial exposure time is adjusted according to the proportion of the overexposed pixel points to obtain the target exposure time, the target high-frame data and the target low-frame data are acquired according to the target exposure time, and the overexposed pixel points in the target high-frame data are replaced with the pixel points of the target low-frame data, thus the quality of a picture is improved.

Method and system for processing image

A method for correcting the anomalous pixel includes: calculating a matching index of pixels in a first point cloud map and a second point cloud map; finding out an anomalous pixel based on the matching index of the pixels and a correction threshold; and calculating a correction column difference, and correcting the anomalous pixel based on the correction column difference and the matching index of the pixels. The anomalous pixel in the point cloud map is retained and corrected, thus the pixel integrity of an image is guaranteed; and a mode for correcting the anomalous pixel is simple, requires fewer calculating steps, and exhibits high anomalous pixel correction efficiency. An apparatus for the same purpose includes a first camera, a second camera, an image processing unit, an indexing unit, a calculating unit, a judging unit, and a correction execution unit.

Method for correcting anomalous pixel and apparatus

The present invention provides a metal interconnection structure and a manufacturing method thereof, the metal interconnection structure includes: metal interconnection lines disposed at intervals, first metal layers respectively disposed on the metal interconnection lines; second metal layers respectively disposed on the first metal layers; dielectric layers disposed on both sides of the first metal layer and the second metal layer and having a gap with both the first metal layer and the second metal layer; and a metal diffusion covering layer covering the dielectric layer and the second metal layer. In the present invention, by disposing the dielectric layer on both sides of the first metal layer and the second metal layer, and the dielectric layer has a gap with both the first metal layer and the second metal layer, and the formed metal interconnection structure reduces parasitic capacitance due to the gap, and the gaps existing between the first metal layer and the dielectric layer and between the second metal layer and the dielectric layer can further reduce the diffusion of metal ions to the dielectric layer.

Metal interconnection structure and manufacturing method thereof

The present invention provides a camera focusing method, including: making an imaging plane of a time-of-flight (ToF) camera and that of a red-green-blue (RGB) camera located in a common plane, obtaining a pixel column difference, a pixel matching table, and a corresponding area, calculating an average depth value of the corresponding area, calculating an adjustment distance according to the average depth value and a lens focal length, and adjusting a distance between a lens center and the imaging plane according to the adjustment distance to focus the cameras and improve a focusing speed. The present invention further provides a camera focusing system for implementing the camera focusing method.

Camera focusing method and system

Embodiments relate to a voltage oscillator (VCO) that uses a replica bias circuit to generate a cascode bias voltage. The VCO generate an output periodic signal having a frequency and phase that is less or not susceptible to voltage swings by using a bias voltage generated in a replica bias circuit that replicates a voltage-to-current converter in the VOC. The bias voltage is generated and regulated according to a power supply voltage that supplies power to the VCO to account for voltage variations in the power supply voltage.

Replica cascode bias voltage-controlled oscillators

Embodiments relate to type-I PLLs that do not lock at a sub-harmonic frequency of a reference clock signal by controlling timing of charging or discharging of one or more capacitors in the PLLs. A phase frequency detector (PFD) of a type-I PLL can prevent sub-harmonic locking by generating a clear output signal to cause a sampling capacitor of PLL's loop filter to discharge only during a time period when the sampling capacitor is not being charged. For example, the PFD can include a gating element to control the time during which the clear output signal is generated. By ensuring that the sampling capacitor is not discharged during a time period while it is being charged, the PLL's voltage-controlled oscillator is controlled to oscillate at an intended frequency rather than at a sub-harmonic of the intended frequency.

Growing community of inventors

Shanghai, China

Rui Yin