Merge pull request #29 from mwtarnowski/add-nerfmm

Add NeRF--

README.md

@@ -18,6 +18,7 @@ A curated list of awesome neural radiance fields papers, inspired by [awesome-co
 - [NeRF++: Analyzing and Improving Neural Radiance Fields](https://arxiv.org/abs/2010.07492), Zhang et al., Arxiv 2020 | [github](https://github.com/Kai-46/nerfplusplus) | [bibtex](./NeRF-and-Beyond.bib#L345-L351) <!---Zhang20arxiv_nerf++-->
 - [DeRF: Decomposed Radiance Fields](https://arxiv.org/abs/2011.12490), Rebain et al. Arxiv 2020 | [bibtex](./NeRF-and-Beyond.bib#L222-L228) <!---Rebain20arxiv_derf-->
 - [NeRD: Neural Reflectance Decomposition from Image Collections](https://markboss.me/publication/2021-nerd/), Boss et al., Arxiv 2020 | [github](https://github.com/cgtuebingen/NeRD-Neural-Reflectance-Decomposition) | [bibtex](./NeRF-and-Beyond.bib#L9-L15) <!---Boss20arxiv_NeRD-->
+- [NeRF--: Neural Radiance Fields Without Known Camera Parameters](http://nerfmm.active.vision/), Wang et al., Arxiv 2021 | [github](https://github.com/ActiveVisionLab/nerfmm) | [bibtex](./citations/nerf--.txt) <!---Wang21arxiv_nerfmm-->
 
 #### Faster Inference
 - [Neural Sparse Voxel Fields](https://lingjie0206.github.io/papers/NSVF/), Liu et al., NeurIPS 2020 | [github](https://github.com/facebookresearch/NSVF) | [bibtex](./NeRF-and-Beyond.bib#L135-L141) <!---Liu20neurips_sparse_nerf-->