virtex | [CVPR 2021] VirTex: Learning Visual Representations from Textual Annotations | Computer Vision library
kandi X-RAY | virtex Summary
kandi X-RAY | virtex Summary
Karan Desai and Justin Johnson University of Michigan . Model Zoo, Usage Instructions and API docs: [kdexd.github.io/virtex] VirTex is a pretraining approach which uses semantically dense captions to learn visual representations. We train CNN + Transformers from scratch on COCO Captions, and transfer the CNN to downstream vision tasks including image classification, object detection, and instance segmentation. VirTex matches or outperforms models which use ImageNet for pretraining — both supervised or unsupervised — despite using up to 10x fewer images.
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Top functions reviewed by kandi - BETA
- Launch num_GPU processes
- Synchronization barrier
- Execute a job worker
- Evaluate predictions
- Loads checkpointables from checkpoint file
- Create a dataset from a config
- Create a new instance
- Forward computation
- Make a torch Tensor
- Loads checkpointables from given path
- Load model state dictionary
- Common setup
- Dump the configuration to a file
- Create a Resnet50 model
- Load the optimizer
- Yield batches of data from given dataloader
- Return a string representation of the predictions
- Build configuration for detectron2
- Return a string representation of predictions
- Calculate the average across all processes
- Returns a string representation of the prediction
- Compute embeddings
- Argument parser
- Returns a dictionary of detectron2 backbone state
- Create a new dataset from a config object
- Returns a list of modelzoo configs
- Update the checkpoint with the given metric
- Construct a model from a Config object
virtex Key Features
virtex Examples and Code Snippets
Community Discussions
Trending Discussions on virtex
QUESTION
Good day! So I'm fairly new to flutter, so I have a little to no idea how to layout several widgets, let alone several widgets inside a card.
So I want to come up with this kind of output [1]: https://i.stack.imgur.com/EpquW.png
But when I try to run my code, it returns as blank (See picture for reference) [2]: https://i.stack.imgur.com/GFtgY.png
This is my code:
...ANSWER
Answered 2021-May-21 at 09:45Well, for you first question, it's showing a blank page because you need to set a size for the Column that you have inside the Card, like this:
QUESTION
So I'm new to flutter, and I'm trying to make a card. But I can't seem to get my desired output.
I tried to separate the different widgets, by using rows and columns, but I kept messing it up.
This is my target output Target output This is my current progressCurrent progress
...ANSWER
Answered 2021-May-19 at 06:48QUESTION
Now I am making a project relating to MGT (Multi-Gigabit Transceiver) GTP.
Because I am a newbie in verilog programming language, I have one question about the MGT GTP.
In the Xilinx document (Virtex-5 FPGA ROCKETIO GTP transceiver), TX sides (figure) has one FIFO-TX buffer (Phase adjust FiFo and Oversampling).
From the information I read in this document, I understand that this module is only used to adjust the clock phase of TX side and minimize the skew of the GTP transceiver.
It is not difficult for me to generate one asynchronous or synchronous FIFO to connect to MGT GTP but it will increase the jitter latency.
I thought that if I can use TX buffer inside the MGT GTP, it is possible to reduce the jitter latency.
Therefore, my question is that
Could I use this TX buffer to transmit data as synchronous or asynchronous FIFO bram ?
If I can use this buffer as synchr and asynchr FIFO, are there the status flag (empty or full) for this TX buffer ?
Thank you so much
...ANSWER
Answered 2018-Jun-06 at 08:58You cannot use it "as" a BRAM as it is an internal transceiver component. It's an internal asynchronous FIFO that bridges the TXUSERCLK domain to the XCLK domain, and nothing more. It looks like you can get a 'water mark' status signal out of the buffer via the TXBUFSTATUSn signal, but this is only a one-bit signal indicating more or less than half full, not a full or empty indication. And there is no way to indicate that data into the FIFO is valid or not, every cycle in the TXUSERCLK domain is considered valid data. The phase alignment/deskew routines seem to be the only thing that can actually change the amount of data in the buffer. Well, that and running TXUSERCLK at a different frequency than XCLK, but this will just result in buffer overflow or buffer underflow, necessitating a reset of the transmitter. The thing to note about the deskew routines is that they are designed to align the XCLK of two adjacent transmitter channels, not to minimize the delay through a single channel.
I have no idea what you mean by "jitter latency."
QUESTION
I am currently working on a Virtex 7 FPGA . I am trying to install the driver for the PCIe DMA driver for linux . But it is giving me the following error :
error: implicit declaration of function ‘pci_enable_msix’ [-Werror=implicit-function-declaration]
Can someone help me with this error ?
...ANSWER
Answered 2018-Mar-10 at 07:22Linux 4.8 replaced it with pci_enable_msix_range. You can fix it like this:
QUESTION
I need to realize a source-synchronous receiver in a Virtex 6 that receives data and a clock from a high speed ADC. For the SERDES Module I need two clocks, that are basically the incoming clock, buffered by BUFIO and BUFR (recommended). I hope my picture makes the situation clear.
My problem is, that I have some IOBs, that cannot be reached by the BUFIO because they are in a different, not adjacent clock region. A friend recommended using the MMCM and connecting the output to a BUFG, which can reach all IOBs. Is this a good idea? Can't I connect my LVDS clock buffer directly to a BUFG, without using the MMCM before?
My knowledge about FPGA Architecture and clocking regions is still very limited, so it would be nice if anybody has some good ideas, wise words or has maybe worked out a solution to a similar problem in the past.
...ANSWER
Answered 2017-Mar-18 at 16:54It is quite common to use a MMCM for external inputs, if only to cleanup the signal and realize some other nice features (like 90/180/270 degree phase shift for quad-data rate sampling).
With the 7-series they introduced the multi-region clock buffer (BUFMR) that might help you here. Xilinx has published a nice answer record on which clock buffer to use when: 7 Series FPGA Design Assistant - Details on using different clocking buffers
I think your friends suggestion is correct.
Also check this application note for some suggestions: LVDS Source Synchronous 7:1 Serialization and Deserialization Using Clock Multiplication
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install virtex
You can use virtex like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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