TOCH: Spatio-Temporal Object Correspondence to Hand for Motion Refinement

We present TOCH, a method for refining incorrect 3D hand-object interaction sequences using a data prior. Existing hand trackers, especially those that rely on very few cameras, often produce visually unrealistic results with hand-object intersection or missing contacts. Although correcting such errors requires reasoning about temporal aspects of interaction, most previous work focus on static grasps and contacts. The core of our method are TOCH fields, a novel spatio-temporal representation for modeling correspondences between hands and objects during interaction. The key component is a point-wise object-centric representation which encodes the hand position relative to the object. Leveraging this novel representation, we learn a latent manifold of plausible TOCH fields with a temporal denoising auto-encoder. Experiments demonstrate that TOCH outperforms state-of-the-art (SOTA) 3D hand-object interaction models, which are limited to static grasps and contacts. More importantly, our method produces smooth interactions even before and after contact. Using a single trained TOCH model, we quantitatively and qualitatively demonstrate its usefulness for 1) correcting erroneous reconstruction results from off-the-shelf RGB/RGB-D hand-object reconstruction methods, 2) de-noising, and 3) grasp transfer across objects. We will release our code and trained model on our project page at http://virtualhumans.mpi-inf.mpg.de/toch

A bibliography of parasites and diseases of marine and freshwater fishes of India

With the increasing demand for fish as human food, aquaculture both in freshwater and salt water is rapidly developing over the world. In the developing countries, fishes are being raised as food. In many countries fish farming is a very important economic activity. The most recent branch, mariculture, has shown advances in raising fishes in brackish, estuarine and bay waters, in which marine, anadromous and catadromous fishes have successfully been grown and maintained

Effects of polarised light on bacterial growth

During recent years certain biochemical effects of polarised light as compared with ordinary light have been brought into prominence by Dr. Elizabeth Sidney Semmens (Journ. Soc. Chem. Ind., 42, 954, 1923; also Bri. Assoc. Rep., 1923). She has shown that the hydrolysis of starch proceeds with greater rapidity in polarised light than in ordinary light of the same intensity, all other conditions being identical

Paramagnetism of the iron group

This article does not have an abstract

Effect of polarised radiations on animal metabolism

In a previous note (NATURE, February 27, 1926) it was shown that V. cholera à and B. typhosis grow more rapidly in polarised light than in ordinary light of the same intensity. Further work on the same subject has been continued by us, and a paper embodying the results obtained on the growth of B. coli and V. cholera à has already been communicated to the Indian Journal of Medical Research