摘要:
A method and device for generating a perspective image are provided, which are related to multimedia technology. The method comprises the following steps: acquiring the length, height and vanishing point of a required perspective image and the length and height of an original image; for each pixel point (x′, y′) in the perspective image, determining the coordinate (x, y) of a pixel point in the original image corresponding to said pixel point; copying the pixel point at the coordinate (x, y) in the original image to the position corresponding to the coordinate (x′, y′) in said perspective image. The invention utilizes a principle that perspective image is smaller than original image, and employs a form of inverse transform, thereby the calculated pixel points are reduced, and compared with forward calculation, the calculation is greatly reduced, which improves the speed of perspective image generating and saves central processing unit (CPU) resources.
摘要:
A method and device for generating a perspective image are provided, which are related to multimedia technology. The method comprises the following steps: acquiring the length, height and vanishing point of a required perspective image and the length and height of an original image; for each pixel point (x′, y′) in the perspective image, determining the coordinate (x, y) of a pixel point in the original image corresponding to said pixel point; copying the pixel point at the coordinate (x, y) in the original image to the position corresponding to the coordinate (x′, y′) in said perspective image. The invention utilizes a principle that perspective image is smaller than original image, and employs a form of inverse transform, thereby the calculated pixel points are reduced, and compared with forward calculation, the calculation is greatly reduced, which improves the speed of perspective image generating and saves central processing unit (CPU) resources.
摘要:
Supporting multiple graphics processing units (GPUs) comprises a first path coupled to a north bridge device (or a root complex device) and a first GPU, which may include a portion of the first GPU's total communication lanes. A second communication path may be coupled to the north bridge device and a second GPU and may include a portion of the second GPU's total communication lanes. A third communication path may be coupled between the first and second GPUs directly or through one or more switches that can be configured for single or multiple GPU operations. The third communication path may include some or all of the remaining communication lanes for the first and second GPUs. As a nonlimiting example, the first and second GPUs may each utilize an 8-lane PCI express communication path with the north bridge device and an 8-lane PCI express communication path with each other.
摘要:
Supporting multiple graphics processing units (GPUs) comprises a first path coupled to a north bridge device (or a root complex device) and a first GPU, which may include a portion of the first GPU's total communication lanes. A second communication path may be coupled to the north bridge device and a second GPU and may include a portion of the second GPU's total communication lanes. A third communication path may be coupled between the first and second GPUs directly or through one or more switches that can be configured for single or multiple GPU operations. The third communication path may include some or all of the remaining communication lanes for the first and second GPUs. As a nonlimiting example, the first and second GPUs may each utilize an 8-lane PCI express communication path with the north bridge device and an 8-lane PCI express communication path with each other.
摘要:
The present invention provides a quantum theory correction method for improving the accuracy of temperature measurement of radiation thermometer and a radiation thermometer system. The invention is related to the radiation thermometer in the field of instrumentation. The present invention acquires parameters reflecting energy level structure by adopting effective physical model to process data and using keyboard input or data transmission. The temperature of the object to be measured is finally acquired and displayed on the displayer. The quantum theory correction method and radiation thermometer system effectively overcome the difficulty that the value of radiance ε(λ·T) cannot be accurately measured in the event that radiance correction method is used to improve the accuracy of radiation thermometer. Thus, the accuracy of thermometer is improved significantly.
摘要:
The present invention provides a quantum theory correction method for improving the accuracy of temperature measurement of radiation thermometer and a radiation thermometer system. The invention is related to the radiation thermometer in the field of instrumentation. The present invention acquires parameters reflecting energy level structure by adopting effective physical model to process data and using keyboard input or data transmission. The temperature of the object to be measured is finally acquired and displayed on the displayer. The quantum theory correction method and radiation thermometer system effectively overcome the difficulty that the value of radiance ε(λ·T) cannot be accurately measured in the event that radiance correction method is used to improve the accuracy of radiation thermometer. Thus, the accuracy of thermometer is improved significantly.
摘要:
A system and method for supporting multiple graphics processing units (GPUs) includes a first communication path coupled to a root complex device and a first connection point of a first GPU. A second communication path is coupled to the root complex device and a first set of switches. The first set of switches is configured to route communications between the root complex device to either a second connection point of the first GPU via a second set of switches or to a first connection point of a second GPU. The second set of switches is coupled to a second connection point of the first GPU. The second set of switches is configured to route communications to and from the second connection point of the first GPU and to either the root complex device via the first set of switches or to a second connection point of the second GPU.
摘要:
A system and method for supporting multiple graphics processing units (GPUs) includes a first communication path coupled to a root complex device and a first connection point of a first GPU. A second communication path is coupled to the root complex device and a first set of switches. The first set of switches is configured to route communications between the root complex device to either a second connection point of the first GPU via a second set of switches or to a first connection point of a second GPU. The second set of switches is coupled to a second connection point of the first GPU. The second set of switches is configured to route communications to and from the second connection point of the first GPU and to either the root complex device via the first set of switches or to a second connection point of the second GPU.