A measurement recording system is configured to measure timing information for correcting out-of-synchronization of a time axis between a first captured video and a second captured video and correct the out-of-synchronization to align the start timing between the first captured video and the second captured video based on the measured timing information.

A measurement recording system is configured to measure timing information for correcting out-of-synchronization of a time axis between a first captured video and a second captured video and correct the out-of-synchronization to align the start timing between the first captured video and the second captured video based on the measured timing information.

A method for evaluating performance of a driving video recording system may include extracting, by a control device, a plurality of video frames from a video file, identifying, by the control device, a time interval associated with at least one video frame that comprises a marker among the plurality of video frames and identifying a first time point, of the time interval, corresponding to the at least one video frame, identifying, by the control device and from the video file, a sound signal corresponding to the at least one video frame to identify a second time point, of the time interval, associated with the sound signal corresponding to the at least one video frame, and outputting, by the control device and based on a time difference between the first time point and the second time point, a result associated with a time synchronization performance of the driving video recording system.

A method for evaluating performance of a driving video recording system may include extracting, by a control device, a plurality of video frames from a video file, identifying, by the control device, a time interval associated with at least one video frame that comprises a marker among the plurality of video frames and identifying a first time point, of the time interval, corresponding to the at least one video frame, identifying, by the control device and from the video file, a sound signal corresponding to the at least one video frame to identify a second time point, of the time interval, associated with the sound signal corresponding to the at least one video frame, and outputting, by the control device and based on a time difference between the first time point and the second time point, a result associated with a time synchronization performance of the driving video recording system.

Disclosed are an abnormality detection method, a network video recorder (NVR) and a video server. The method includes: an NVR receiving first keep-alive information from a front-end apparatus, the first keep-alive information carries first verification information, and the first verification information is generated according to a process run by the front-end apparatus while sending the first keep-alive information; the NVR carrying the first verification information in second keep-alive information, and sending the same to the video server; the video server determining, according to the first verification information and second verification information of the front-end apparatus, whether an abnormality has occurred in the front-end apparatus, the second verification information is generated according to a process run by the front-end apparatus in a normal operation status.

Disclosed are an abnormality detection method, a network video recorder (NVR) and a video server. The method includes: an NVR receiving first keep-alive information from a front-end apparatus, the first keep-alive information carries first verification information, and the first verification information is generated according to a process run by the front-end apparatus while sending the first keep-alive information; the NVR carrying the first verification information in second keep-alive information, and sending the same to the video server; the video server determining, according to the first verification information and second verification information of the front-end apparatus, whether an abnormality has occurred in the front-end apparatus, the second verification information is generated according to a process run by the front-end apparatus in a normal operation status.

One aspect of the present disclosure provides a device for extracting and transmitting data from a shop floor image, the device comprising: an encoder configured for receiving, from a facility operating system, streaming video data of a display screen of a monitor of the facility operating system on a shop floor, and for encoding the streaming video data in real time; a video data analyzer configured for receiving the real-time encoded streaming video data and for extracting data by figuring out and tagging a data presentation location in the real-time encoded streaming video data using a video data analysis algorithm; and a communication unit configured for transmitting to a data engine the real-time encoded streaming video data, and the data extracted by the video data analyzer.

One aspect of the present disclosure provides a device for extracting and transmitting data from a shop floor image, the device comprising: an encoder configured for receiving, from a facility operating system, streaming video data of a display screen of a monitor of the facility operating system on a shop floor, and for encoding the streaming video data in real time; a video data analyzer configured for receiving the real-time encoded streaming video data and for extracting data by figuring out and tagging a data presentation location in the real-time encoded streaming video data using a video data analysis algorithm; and a communication unit configured for transmitting to a data engine the real-time encoded streaming video data, and the data extracted by the video data analyzer.

A video camera system including: one or more video cameras; a video recorder in communication with each of the one or more video cameras; a video analytics module, the video analytics module being a computer program product embodied on a computer readable medium, the computer program product including instructions that, when executed by a processor, cause the processor to perform operations including: obtaining video parameters of a plurality of video frames received at the video recorder, the plurality of video frames being transmitted from the one or more video cameras to the video recorder; determining an abnormality within the video parameters; and identifying a malfunctioning video camera of the one or more video cameras that produced the abnormality within the video parameters.

There is disclosed herein methods for measuring reproducing capability of image recording and reproducing devices. The method includes generating an image of a test panel, wherein the image was captured by a test device (e.g., capturing the test image with the test device and uploading the same to a computer processing device; or electronically receiving the test image at a processing device). The image comprises a digital image including therein the test panel. The image is compared to a reference image of a reference panel.