Vivotek Inc.

Hsiang-Sheng Wang

Shih-Hsuan Chen

A day-mode-night-mode switching method is applied to a monitoring camera apparatus or a filter switching module. The monitoring camera apparatus is electrically connected to an supplemental lighting apparatus for light compensation. The day-mode-night-mode switching method can include acquiring an equivalent exposure parameter of the monitoring camera apparatus, determining whether the equivalent exposure parameter conforms to a first mode switching condition when the monitoring camera apparatus is in a night mode, computing a light compensation exposure parameter of the monitoring camera apparatus when the equivalent exposure parameter conforms to the first mode switching condition, utilizing a compensation parameter acquired by the light compensation exposure parameter to transform the equivalent exposure parameter into a predicted exposure parameter, and switching modes of the monitoring camera apparatus according to a determination of the predicted exposure parameter and the first mode switching condition.

Day-mode-night-mode switching method and related monitoring camera apparatus

An exposure compensating method applied to a camera apparatus includes acquiring a monitoring image captured by the camera apparatus via an exposure parameter, computing an estimating exposure compensating value of the monitoring image according to a triggering threshold, analyzing continuity in pixels of the monitoring image with intensity conforming to a specific condition to acquire a weighting adjustment value of a region of interest, adjusting the estimating exposure compensating value via the weighting adjustment value to generate a final exposure compensating value, and adjusting the exposure parameter by the final exposure compensating value.

Exposure compensating method and related camera apparatus

An image analyzing method of detecting a dimension of a region of interest inside an image is applied to an image analyzing device. The image analyzing method includes positioning an initial triggering pixel unit within a detective identifying area inside the image, and assigning a first detection region via a center of the initial triggering pixel unit, positioning a first based pixel unit conforming to a first target value inside the first detection region, applying a mask via a center of the first based pixel unit to determine whether a first triggering pixel unit exists inside the mask, and utilizing a determination result of the initial triggering pixel unit and the first triggering pixel unit to decide a maximal dimension of the region of interest.

Image analyzing method and related image analyzing device

A metering compensation method for effectively increasing visibility of an image is applied to a monitoring camera apparatus. The metering compensation method includes acquiring a histogram of the image, setting a convergent target value and a minimal mapping value, utilizing the convergent target value and the minimal mapping value to set a weighting function, transforming the histogram into a weighted histogram via the weighting function for acquiring an intensity mean of the weighted histogram, and utilizing the convergent target value and the intensity mean to generate a first exposure compensation value. The first exposure compensation value can be used for determining whether to adjust an exposure parameter of the monitoring camera apparatus.

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Taipei, Taiwan

Hsiang-Sheng Wang