Himax Imaging, Inc.

Himax Technologies, Inc.

Wei-Chieh Yang

Po-Chang Chen

Po-Fang Chen

Yuan-Chih Peng

Felix Su

Wei-Chun Mai

A correction device includes: an offset updating unit, a calculating unit and a gain stretching unit. The offset updating unit is configured to generate a plurality of updated offset values according to a plurality of base offset values, wherein each of the plurality of updated offset values corresponding to one column of pixel values among a plurality of columns of pixel values generated by an image sensor. The calculating unit is configured to generate a plurality of columns of corrected pixel values according to the plurality of updated offset values and the plurality of columns of pixel values. The gain stretching unit is coupled to the calculating unit and configured to determine a compensation gain according to the plurality of updated offset values and accordingly generate a plurality of columns of output pixel values according to the compensation gain and the plurality of columns of corrected pixel values.

Correction method and device for handling column fixed pattern noise of image sensor and related image sensing device

A method of controlling a lighting fixture based on motion detection includes: receiving a plurality of captured image frames; obtaining a plurality of resampled image frames by resampling the captured image frames according to regional characteristics of the resampled image frames; dynamically adjusting a sensitivity for motion detection according to the regional characteristics of the resampled image frames; performing motion detection on the resampled image frames according to the sensitivity; and controlling the lighting fixture according to a result of the motion detection.

Method and apparatus for controlling a lighting fixture based on motion detection and related lighting fixture

A presence detection system includes a camera that captures an image; an appearance-based detector that detects appearance of an object according to the image, thereby outputting an appearance-detection signal that is asserted when the appearance is detected; a proximity detector that detects motion of the object on a predetermined detection window on the image, thereby outputting a proximity-detection signal that is asserted when the motion is detected; and a fusion unit that receives the appearance-detection signal and the proximity-detection signal, thereby outputting an object-presence signal that is asserted when the appearance-detection signal or the proximity-detection signal is asserted.

Presence detection system

A method for controlling an image capturing device that is operated according to a startup signal includes: configuring an image sensor array of the image capturing device by a first context to output a high-resolution image with a relatively long exposure time to a post-device; switching the first context to a second context based on the high-resolution image and a wide convergence zone; configuring the image sensor array by the second context to output one or more low-resolution images with relatively short exposure times in order to update an exposure value based on the low-resolution images; and updating the exposure value based on a narrow convergence zone to configure the image sensor array.

Method and apparatus of performing automatic exposure control for image sensor with context switching

A motion detection system with flicker compensation includes an image sensor that captures a first image for motion detection and a second image for flicker detection, the second image having a resolution lower than the first image; a controller that controls the image sensor to output either the first image or the second image; a motion detection device that receives first images and performs motion detection on the first images; and a flicker detection device that receives second images and performs flicker detection on the second images to generate a time offset, which is fed to the controller to update a wakeup cycle for coordinating the image sensor.

Motion detection system with flicker compensation

An auto exposure control system includes a mean statistics unit that generates a weighted mean brightness value for an image array; a target control unit that determines a target brightness value according to an ambient status that is determined in accordance with an ambient light value, wherein, in one embodiment, the weighted mean brightness value is used as the ambient light value; a stabilization unit that generates stabilization control signals for the target control unit according to the ambient light value and ambient status information provided by the target control unit; and an exposure value control unit that computes a desired exposure value by comparing the target brightness value with the weighted mean brightness value and determines an exposure command according to the desired exposure value.

Growing community of inventors

Tainan, Taiwan

Wei-Chieh Yang