摘要:
A method and apparatus for an anti-melt projection lens cap includes a sensor that detects whether the projection lens cap covers the projection lens and transmits a detected signal to the control unit including two control modes. The first one is projecting a dark image immediately, as the projection lens cap covers the projection lens for longer than a first set time, the control unit switches to a power-saving mode, when it lasts longer than a second set time, the lamp and the system power supply are turned off, then, a fan cools the lamp, the control unit switches to a standby mode. The second one is switching to the power-saving mode directly, when it lasts longer than a second set time, the lamp and the system power supply are turned off, and a fan cools the lamp, then, the control unit switches to the standby mode.
摘要:
A projection system and a projection method thereof are provided. A plurality of image source signals is combined into a combination image signal. A host is instructed to provide a plurality of the projection ratios corresponding to the image source signals according to extended display identification data. An image source signal combination unit combines the projection ratios corresponding to the image source signals to form a combination projection ratio corresponding to the combination image signal. A light valve is set to a mode corresponding to the combination projection ratio. The illumination beam is converted to an image beam according to the combination image signal.
摘要:
A projection device and an automatic projection calibration method thereof are disclosed. When the projection device boots up, an image pattern corresponding to a display data is projected through a projecting unit. The image pattern is sensed through an image sensor to obtain information of the image pattern. The information of the image pattern is compared with information of a previous image pattern through a processing unit to determine whether to execute an automatic calibration procedure. When the processing unit executes the automatic calibration procedure, a calibration pattern is projected through the projecting unit. The calibration pattern is sensed through the image sensor to obtain information of the calibration pattern. A calibration driving procedure is executed through the processing unit to convert imaging coordinates of the calibration pattern sensed through the image sensor into projecting coordinates of the projection device, so as to establish a coordinate conversion table.
摘要:
An image-capturing device and a projection automatic calibration method of a projection device are provided. The image-capturing device includes an image sensing device, a lens, a processing unit and a storage unit. The lens is configured to image a calibration pattern on the image sensing device. The processing unit is configured to issue a projection calibration requirement and analyze the calibration pattern imaged on the image sensing device to obtain information relating to the calibration pattern, and the processing unit is further configured to convert imaging coordinates of the calibration pattern imaged on the image sensing device into projecting coordinates of the projection device by executing a calibration driving program to establish a coordinate conversion table. The storage unit is configured to store the calibration driving program and the coordinate conversion table.
摘要:
A projection system including a projection device, a computer device and an image-capturing device is provided. The computer device communicates with the projection device, and is configured to control the projection device to project a calibration pattern in response to a projection calibration requirement. The image-capturing device communicates with at least one of the computer device and the projection device, and is configured to issue the projection calibration requirement and capture the calibration pattern to automatically calibrate interactive coordinates between a display frame of the computer device and a projecting frame of the projection device. In addition, a calibration method relating to the projection system is also provided.
摘要:
Determining if an input image is a foggy image includes determining an average luminance gray level of the input image, performing Sobel image processing on the input image to generate a Sobel image of the input image when the average luminance gray level of the input image is between a first image average luminance and a second image average luminance, determining a first normalization value and a second normalization value of the input image, determining a mean value and a standard deviation of the Sobel image when the first normalization value and the second normalization value are less than a first threshold value, and determining the input image as a foggy image when a sum of the mean value and the standard deviation is less than a second threshold value.
摘要:
Determining if an input image is a foggy image includes determining an average luminance gray level of the input image, performing Sobel image processing on the input image to generate a Sobel image of the input image when the average luminance gray level of the input image is between a first image average luminance and a second image average luminance, determining a first normalization value and a second normalization value of the input image, determining a mean value and a standard deviation of the Sobel image when the first normalization value and the second normalization value are less than a first threshold value, and determining the input image as a foggy image when a sum of the mean value and the standard deviation is less than a second threshold value.
摘要:
An imaging module includes a first housing, a projection lens, elastic members and lock members. The first housing has a first combination part having first lock holes. The projection lens has a lens barrel and at least one lens disposed inside the lens barrel. The lens barrel has a plurality of connection parts extending outward. Each connection part has a second lock hole. The elastic members are disposed between each connection part and the first combination part. Each elastic member has a first surface leant against the corresponding connection part and a second surface leant against the first combination part. The first surfaces form a first datum plane. The connection parts lean against the first datum plane. Each lock member is inserted into the corresponding second lock hole, the corresponding first lock hole and the elastic member between the corresponding second lock hole and first lock hole.
摘要:
A method and apparatus for an anti-melt projection lens cap includes a sensor that detects whether the projection lens cap covers the projection lens and transmits a detected signal to the control unit including two control modes. The first one is projecting a dark image immediately, as the projection lens cap covers the projection lens for longer than a first set time, the control unit switches to a power-saving mode, when it lasts longer than a second set time, the lamp and the system power supply are turned off, then, a fan cools the lamp, the control unit switches to a standby mode. The second one is switching to the power-saving mode directly, when it lasts longer than a second set time, the lamp and the system power supply are turned off, and a fan cools the lamp, then, the control unit switches to the standby mode.